feat(dashboards): add the Text panel (#12845)

#### Description

Adds the **Text panel** to V2 dashboards — a query-less panel that
renders an authored Markdown body. Frontend only; the spec and API types
land in #12711, which this PR is stacked on.

- New `signoz/TextPanel` kind: renderer, editor pane, and definition,
wired through the panel registry and the capabilities guard so it hides
query-only controls.
- Panel chrome is now shared across authoring modes, so the grid, the
View modal, the editor and the public view all fork on `query` vs
`static` instead of duplicating the header/body.
- Body content: variable interpolation (bodies are rewritten when a
variable is renamed), a scroll pill when the text continues below the
fold, and task-list checkboxes that write back to the source.
- Presentation: optional hidden header, and a themed background resolved
from the stored hex.
- Empty state for a panel with nothing written yet.

#### Additional Information

- **Stacked on #12711 — review/merge that one first.** Base is
`nv/text-panel`, so this diff is the 120 frontend files only.
- The Markdown editor and renderer primitives merged separately in
#12712.

docs/api/openapi.yml

@@ -296,6 +296,17 @@ components:
       - jsmops
       - incidentio
       type: string
+    AlertmanagertypesChannelListOrder:
+      enum:
+      - asc
+      - desc
+      type: string
+    AlertmanagertypesChannelListSort:
+      enum:
+      - updated_at
+      - created_at
+      - name
+      type: string
     AlertmanagertypesChannelMSTeamsConfig:
       properties:
         sendResolved:
@@ -576,6 +587,43 @@ components:
         wont_fix_resolution:
           type: string
       type: object
+    AlertmanagertypesListableNotificationChannel:
+      properties:
+        channels:
+          items:
+            $ref: '#/components/schemas/AlertmanagertypesListedNotificationChannel'
+          type: array
+        total:
+          format: int64
+          type: integer
+      required:
+      - channels
+      - total
+      type: object
+    AlertmanagertypesListedNotificationChannel:
+      properties:
+        createdAt:
+          format: date-time
+          type: string
+        displayName:
+          type: string
+        id:
+          type: string
+        kind:
+          $ref: '#/components/schemas/AlertmanagertypesChannelKind'
+        name:
+          type: string
+        updatedAt:
+          format: date-time
+          type: string
+      required:
+      - id
+      - name
+      - displayName
+      - kind
+      - createdAt
+      - updatedAt
+      type: object
     AlertmanagertypesMaintenanceKind:
       enum:
       - fixed
@@ -942,6 +990,20 @@ components:
       - timezone
       - startTime
       type: object
+    AlertmanagertypesTestableNotificationChannel:
+      properties:
+        config:
+          $ref: '#/components/schemas/AlertmanagertypesChannelConfig'
+      required:
+      - config
+      type: object
+    AlertmanagertypesUpdatableNotificationChannel:
+      properties:
+        config:
+          $ref: '#/components/schemas/AlertmanagertypesChannelConfig'
+      required:
+      - config
+      type: object
     AuthtypesAttributeMapping:
       properties:
         email:
@@ -3474,6 +3536,11 @@ components:
       - tags
       - spec
       type: object
+    DashboardtypesHeaderOptions:
+      properties:
+        hide:
+          type: boolean
+      type: object
     DashboardtypesHistogramBuckets:
       properties:
         bucketCount:
@@ -3831,6 +3898,7 @@ components:
           signoz/NumberPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesNumberPanelSpec'
           signoz/PieChartPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesPieChartPanelSpec'
           signoz/TablePanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTablePanelSpec'
+          signoz/TextPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTextPanelSpec'
           signoz/TimeSeriesPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTimeSeriesPanelSpec'
         propertyName: kind
       oneOf:
@@ -3841,6 +3909,7 @@ components:
       - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTablePanelSpec'
       - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesHistogramPanelSpec'
       - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesListPanelSpec'
+      - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTextPanelSpec'
       type: object
     DashboardtypesPanelPluginKind:
       enum:
@@ -3851,6 +3920,7 @@ components:
       - signoz/TablePanel
       - signoz/HistogramPanel
       - signoz/ListPanel
+      - signoz/TextPanel
       type: string
     DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesBarChartPanelSpec:
       properties:
@@ -3924,6 +3994,18 @@ components:
       - kind
       - spec
       type: object
+    DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTextPanelSpec:
+      properties:
+        kind:
+          enum:
+          - signoz/TextPanel
+          type: string
+        spec:
+          $ref: '#/components/schemas/DashboardtypesTextPanelSpec'
+      required:
+      - kind
+      - spec
+      type: object
     DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTimeSeriesPanelSpec:
       properties:
         kind:
@@ -4215,6 +4297,37 @@ components:
       - color
       - columnName
       type: object
+    DashboardtypesTextAlign:
+      enum:
+      - left
+      - center
+      - right
+      type: string
+    DashboardtypesTextMode:
+      enum:
+      - markdown
+      type: string
+    DashboardtypesTextPanelSpec:
+      properties:
+        headerOptions:
+          $ref: '#/components/schemas/DashboardtypesHeaderOptions'
+        mode:
+          $ref: '#/components/schemas/DashboardtypesTextMode'
+        presentation:
+          $ref: '#/components/schemas/DashboardtypesTextPresentation'
+        text:
+          type: string
+      type: object
+    DashboardtypesTextPresentation:
+      properties:
+        background:
+          nullable: true
+          type: string
+        textAlign:
+          $ref: '#/components/schemas/DashboardtypesTextAlign'
+        verticalAlign:
+          $ref: '#/components/schemas/DashboardtypesVerticalAlign'
+      type: object
     DashboardtypesTextVariableSpec:
       properties:
         constant:
@@ -4424,6 +4537,12 @@ components:
       - kind
       - spec
       type: object
+    DashboardtypesVerticalAlign:
+      enum:
+      - top
+      - center
+      - bottom
+      type: string
     ErrorsJSON:
       properties:
         code:
@@ -7395,10 +7514,7 @@ components:
             $ref: '#/components/schemas/Querybuildertypesv5TimeSeries'
           type: array
         meta:
-          properties:
-            unit:
-              type: string
-          type: object
+          $ref: '#/components/schemas/Querybuildertypesv5AggregationMeta'
         predictedSeries:
           items:
             $ref: '#/components/schemas/Querybuildertypesv5TimeSeries'
@@ -7413,12 +7529,51 @@ components:
             $ref: '#/components/schemas/Querybuildertypesv5TimeSeries'
           type: array
       type: object
-    Querybuildertypesv5Bucket:
+    Querybuildertypesv5AggregationMeta:
       properties:
-        step:
-          format: double
-          type: number
+        buckets:
+          items:
+            format: double
+            type: number
+          type: array
+        unit:
+          type: string
       type: object
+    Querybuildertypesv5BucketOptions:
+      discriminator:
+        mapping:
+          linear: '#/components/schemas/Querybuildertypesv5BucketOptionsLinear'
+          log: '#/components/schemas/Querybuildertypesv5BucketOptionsLog'
+        propertyName: kind
+      oneOf:
+      - $ref: '#/components/schemas/Querybuildertypesv5BucketOptionsLinear'
+      - $ref: '#/components/schemas/Querybuildertypesv5BucketOptionsLog'
+      type: object
+    Querybuildertypesv5BucketOptionsLinear:
+      properties:
+        kind:
+          $ref: '#/components/schemas/Querybuildertypesv5BucketsKind'
+        spec:
+          $ref: '#/components/schemas/Querybuildertypesv5LinearBucketsSpec'
+      required:
+      - kind
+      - spec
+      type: object
+    Querybuildertypesv5BucketOptionsLog:
+      properties:
+        kind:
+          $ref: '#/components/schemas/Querybuildertypesv5BucketsKind'
+        spec:
+          $ref: '#/components/schemas/Querybuildertypesv5LogBucketsSpec'
+      required:
+      - kind
+      - spec
+      type: object
+    Querybuildertypesv5BucketsKind:
+      enum:
+      - linear
+      - log
+      type: string
     Querybuildertypesv5BuilderQuerySpec:
       discriminator:
         mapping:
@@ -7599,6 +7754,16 @@ components:
         value:
           type: string
       type: object
+    Querybuildertypesv5LinearBucketsSpec:
+      properties:
+        maxValue:
+          format: double
+          type: number
+        numBuckets:
+          type: integer
+      required:
+      - maxValue
+      type: object
     Querybuildertypesv5LogAggregation:
       properties:
         alias:
@@ -7606,6 +7771,12 @@ components:
         expression:
           type: string
       type: object
+    Querybuildertypesv5LogBucketsSpec:
+      properties:
+        scale:
+          nullable: true
+          type: integer
+      type: object
     Querybuildertypesv5MetricAggregation:
       properties:
         comparisonSpaceAggregationParam:
@@ -7686,6 +7857,8 @@ components:
       type: object
     Querybuildertypesv5QueryBuilderFormula:
       properties:
+        bucketOptions:
+          $ref: '#/components/schemas/Querybuildertypesv5BucketOptions'
         disabled:
           type: boolean
         expression:
@@ -7716,6 +7889,8 @@ components:
             $ref: '#/components/schemas/Querybuildertypesv5LogAggregation'
           nullable: true
           type: array
+        bucketOptions:
+          $ref: '#/components/schemas/Querybuildertypesv5BucketOptions'
         cursor:
           type: string
         disabled:
@@ -7777,6 +7952,8 @@ components:
             $ref: '#/components/schemas/Querybuildertypesv5MetricAggregation'
           nullable: true
           type: array
+        bucketOptions:
+          $ref: '#/components/schemas/Querybuildertypesv5BucketOptions'
         cursor:
           type: string
         disabled:
@@ -7838,6 +8015,8 @@ components:
             $ref: '#/components/schemas/Querybuildertypesv5TraceAggregation'
           nullable: true
           type: array
+        bucketOptions:
+          $ref: '#/components/schemas/Querybuildertypesv5BucketOptions'
         cursor:
           type: string
         disabled:
@@ -8163,6 +8342,7 @@ components:
       - raw
       - raw_stream
       - trace
+      - heatmap
       type: string
     Querybuildertypesv5ScalarData:
       properties:
@@ -8237,8 +8417,6 @@ components:
       type: object
     Querybuildertypesv5TimeSeriesValue:
       properties:
-        bucket:
-          $ref: '#/components/schemas/Querybuildertypesv5Bucket'
         partial:
           type: boolean
         timestamp:
@@ -8349,6 +8527,8 @@ components:
           $ref: '#/components/schemas/RuletypesAlertState'
         overallStateChanged:
           type: boolean
+        relatedAITracesLink:
+          type: string
         relatedLogsLink:
           type: string
         relatedTracesLink:
@@ -8392,6 +8572,8 @@ components:
             $ref: '#/components/schemas/Querybuildertypesv5Label'
           nullable: true
           type: array
+        relatedAITracesLink:
+          type: string
         relatedLogsLink:
           type: string
         relatedTracesLink:
@@ -8497,6 +8679,7 @@ components:
       - TRACES_BASED_ALERT
       - LOGS_BASED_ALERT
       - EXCEPTIONS_BASED_ALERT
+      - AI_TRACES_BASED_ALERT
       type: string
     RuletypesBasicRuleThreshold:
       properties:
@@ -19720,6 +19903,86 @@ paths:
       tags:
       - metrics
   /api/v2/notification_channels:
+    get:
+      deprecated: false
+      description: Returns a page of notification channels for the org. Each entry
+        carries the channel's identity and kind but not its configuration; fetch a
+        channel by ID for that. Supports a case-insensitive display name search (`query`),
+        a kind filter (`kind`), sort (`updated_at`/`created_at`/`name`), order (`asc`/`desc`),
+        and offset-based pagination (`limit`/`offset`).
+      operationId: ListNotificationChannels
+      parameters:
+      - in: query
+        name: query
+        schema:
+          type: string
+      - in: query
+        name: kind
+        schema:
+          $ref: '#/components/schemas/AlertmanagertypesChannelKind'
+      - in: query
+        name: sort
+        schema:
+          $ref: '#/components/schemas/AlertmanagertypesChannelListSort'
+      - in: query
+        name: order
+        schema:
+          $ref: '#/components/schemas/AlertmanagertypesChannelListOrder'
+      - in: query
+        name: limit
+        schema:
+          type: integer
+      - in: query
+        name: offset
+        schema:
+          type: integer
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                properties:
+                  data:
+                    $ref: '#/components/schemas/AlertmanagertypesListableNotificationChannel'
+                  status:
+                    type: string
+                required:
+                - status
+                - data
+                type: object
+          description: OK
+        "400":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Bad Request
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - notification-channel:list
+      - tokenizer:
+        - notification-channel:list
+      summary: List notification channels
+      tags:
+      - channels
     post:
       deprecated: false
       description: This endpoint creates a notification channel
@@ -19782,6 +20045,239 @@ paths:
       summary: Create notification channel
       tags:
       - channels
+  /api/v2/notification_channels/{id}:
+    delete:
+      deprecated: false
+      description: This endpoint deletes a notification channel by ID
+      operationId: DeleteNotificationChannel
+      parameters:
+      - in: path
+        name: id
+        required: true
+        schema:
+          type: string
+      responses:
+        "204":
+          description: No Content
+        "400":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Bad Request
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - notification-channel:delete
+      - tokenizer:
+        - notification-channel:delete
+      summary: Delete notification channel
+      tags:
+      - channels
+    get:
+      deprecated: false
+      description: This endpoint returns a notification channel by ID. A channel written
+        by the v1 API can carry a configuration this API does not model.
+      operationId: GetNotificationChannel
+      parameters:
+      - in: path
+        name: id
+        required: true
+        schema:
+          type: string
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                properties:
+                  data:
+                    $ref: '#/components/schemas/AlertmanagertypesGettableNotificationChannel'
+                  status:
+                    type: string
+                required:
+                - status
+                - data
+                type: object
+          description: OK
+        "400":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Bad Request
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - notification-channel:read
+      - tokenizer:
+        - notification-channel:read
+      summary: Get notification channel by ID
+      tags:
+      - channels
+    put:
+      deprecated: false
+      description: 'This endpoint replaces a notification channel''s configuration
+        in full. Neither name is part of the request body: both are immutable. The
+        kind may change, which replaces the channel''s notifier configuration.'
+      operationId: UpdateNotificationChannel
+      parameters:
+      - in: path
+        name: id
+        required: true
+        schema:
+          type: string
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/AlertmanagertypesUpdatableNotificationChannel'
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                properties:
+                  data:
+                    $ref: '#/components/schemas/AlertmanagertypesGettableNotificationChannel'
+                  status:
+                    type: string
+                required:
+                - status
+                - data
+                type: object
+          description: OK
+        "400":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Bad Request
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - notification-channel:update
+      - tokenizer:
+        - notification-channel:update
+      summary: Update notification channel
+      tags:
+      - channels
+  /api/v2/notification_channels/test:
+    post:
+      deprecated: false
+      description: This endpoint sends a test notification for the configuration in
+        the request body. The channel need not exist and nothing is persisted, so
+        the body carries a configuration only.
+      operationId: TestNotificationChannel
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/AlertmanagertypesTestableNotificationChannel'
+      responses:
+        "204":
+          description: No Content
+        "400":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Bad Request
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - notification-channel:create
+      - tokenizer:
+        - notification-channel:create
+      summary: Test notification channel
+      tags:
+      - channels
   /api/v2/orgs/me:
     get:
       deprecated: false

frontend/jest.config.ts

@@ -56,10 +56,10 @@ const config: Config.InitialOptions = {
 	transformIgnorePatterns: [
 		// @chenglou/pretext is ESM-only; @signozhq/ui pulls it in via text-ellipsis.
 		// Pattern 1: allow .pnpm virtual store through (handled by pattern 2), plus root-level ESM packages.
-		'node_modules/(?!(\\.pnpm|react-json-tree|react-base16-styling|lodash-es|react-dnd|core-dnd|@react-dnd|dnd-core|react-dnd-html5-backend|axios|@chenglou/pretext|@signozhq/design-tokens|@signozhq|date-fns|d3-interpolate|d3-color|api|@codemirror|@lezer|@marijn|@grafana|nuqs|uuid|copy-text-to-clipboard|react-markdown|vfile|vfile-message|unist-util-stringify-position|unified|bail|is-plain-obj|trough|remark-parse|mdast-util-from-markdown|mdast-util-to-string|micromark|micromark-core-commonmark|micromark-extension-gfm|micromark-extension-gfm-autolink-literal|micromark-extension-gfm-footnote|micromark-extension-gfm-strikethrough|micromark-extension-gfm-table|micromark-extension-gfm-tagfilter|micromark-extension-gfm-task-list-item|micromark-factory-destination|micromark-factory-label|micromark-factory-space|micromark-factory-title|micromark-factory-whitespace|micromark-util-character|micromark-util-chunked|micromark-util-classify-character|micromark-util-combine-extensions|micromark-util-decode-numeric-character-reference|micromark-util-decode-string|micromark-util-encode|micromark-util-html-tag-name|micromark-util-normalize-identifier|micromark-util-resolve-all|micromark-util-sanitize-uri|micromark-util-subtokenize|micromark-util-symbol|micromark-util-types|decode-named-character-reference|remark-rehype|mdast-util-to-hast|unist-util-position|trim-lines|unist-util-visit|unist-util-visit-parents|unist-util-is|unist-util-generated|mdast-util-definitions|property-information|hast-util-whitespace|space-separated-tokens|comma-separated-tokens|rehype-raw|hast-util-raw|hast-util-from-parse5|devlop|hastscript|hast-util-parse-selector|vfile-location|web-namespaces|hast-util-to-parse5|zwitch|html-void-elements)/)',
+		'node_modules/(?!(\\.pnpm|react-json-tree|react-base16-styling|lodash-es|react-dnd|core-dnd|@react-dnd|dnd-core|react-dnd-html5-backend|axios|@chenglou/pretext|@signozhq/design-tokens|@signozhq|date-fns|d3-interpolate|d3-color|api|@codemirror|@lezer|@marijn|@grafana|nuqs|uuid|copy-text-to-clipboard|react-markdown|vfile|vfile-message|unist-util-stringify-position|unified|bail|is-plain-obj|trough|remark-parse|remark-gfm|mdast-util-gfm|mdast-util-gfm-autolink-literal|mdast-util-gfm-footnote|mdast-util-gfm-strikethrough|mdast-util-gfm-table|mdast-util-gfm-task-list-item|mdast-util-find-and-replace|mdast-util-phrasing|mdast-util-to-markdown|markdown-table|longest-streak|ccount|escape-string-regexp|mdast-util-from-markdown|mdast-util-to-string|micromark|micromark-core-commonmark|micromark-extension-gfm|micromark-extension-gfm-autolink-literal|micromark-extension-gfm-footnote|micromark-extension-gfm-strikethrough|micromark-extension-gfm-table|micromark-extension-gfm-tagfilter|micromark-extension-gfm-task-list-item|micromark-factory-destination|micromark-factory-label|micromark-factory-space|micromark-factory-title|micromark-factory-whitespace|micromark-util-character|micromark-util-chunked|micromark-util-classify-character|micromark-util-combine-extensions|micromark-util-decode-numeric-character-reference|micromark-util-decode-string|micromark-util-encode|micromark-util-html-tag-name|micromark-util-normalize-identifier|micromark-util-resolve-all|micromark-util-sanitize-uri|micromark-util-subtokenize|micromark-util-symbol|micromark-util-types|decode-named-character-reference|remark-rehype|mdast-util-to-hast|unist-util-position|trim-lines|unist-util-visit|unist-util-visit-parents|unist-util-is|unist-util-generated|mdast-util-definitions|property-information|hast-util-whitespace|space-separated-tokens|comma-separated-tokens|rehype-raw|hast-util-raw|hast-util-from-parse5|devlop|hastscript|hast-util-parse-selector|vfile-location|web-namespaces|hast-util-to-parse5|zwitch|html-void-elements)/)',
 		// Pattern 2: pnpm virtual store — ignore everything except ESM-only packages.
 		// pnpm encodes scoped packages as @scope+name@version, so match on scope prefix.
-		'node_modules/\\.pnpm/(?!(react-json-tree|react-base16-styling|lodash-es|react-dnd|core-dnd|@react-dnd|dnd-core|react-dnd-html5-backend|axios|@chenglou|@signozhq|date-fns|d3-interpolate|d3-color|api|@codemirror|@lezer|@marijn|@grafana|nuqs|uuid|copy-text-to-clipboard|react-markdown|vfile|vfile-message|unist-util-stringify-position|unified|bail|is-plain-obj|trough|remark-parse|mdast-util-from-markdown|mdast-util-to-string|micromark|decode-named-character-reference|remark-rehype|mdast-util-to-hast|unist-util-position|trim-lines|unist-util-visit|unist-util-visit-parents|unist-util-is|unist-util-generated|mdast-util-definitions|property-information|hast-util-whitespace|space-separated-tokens|comma-separated-tokens|rehype-raw|hast-util-raw|hast-util-from-parse5|devlop|hastscript|hast-util-parse-selector|vfile-location|web-namespaces|hast-util-to-parse5|zwitch|html-void-elements)[^/]*/node_modules)',
+		'node_modules/\\.pnpm/(?!(react-json-tree|react-base16-styling|lodash-es|react-dnd|core-dnd|@react-dnd|dnd-core|react-dnd-html5-backend|axios|@chenglou|@signozhq|date-fns|d3-interpolate|d3-color|api|@codemirror|@lezer|@marijn|@grafana|nuqs|uuid|copy-text-to-clipboard|react-markdown|vfile|vfile-message|unist-util-stringify-position|unified|bail|is-plain-obj|trough|remark-parse|remark-gfm|mdast-util-gfm|mdast-util-gfm-autolink-literal|mdast-util-gfm-footnote|mdast-util-gfm-strikethrough|mdast-util-gfm-table|mdast-util-gfm-task-list-item|mdast-util-find-and-replace|mdast-util-phrasing|mdast-util-to-markdown|markdown-table|longest-streak|ccount|escape-string-regexp|mdast-util-from-markdown|mdast-util-to-string|micromark|decode-named-character-reference|remark-rehype|mdast-util-to-hast|unist-util-position|trim-lines|unist-util-visit|unist-util-visit-parents|unist-util-is|unist-util-generated|mdast-util-definitions|property-information|hast-util-whitespace|space-separated-tokens|comma-separated-tokens|rehype-raw|hast-util-raw|hast-util-from-parse5|devlop|hastscript|hast-util-parse-selector|vfile-location|web-namespaces|hast-util-to-parse5|zwitch|html-void-elements)[^/]*/node_modules)',
 	],
 	setupFilesAfterEnv: ['<rootDir>/jest.setup.ts'],
 	testPathIgnorePatterns: ['/node_modules/', '/public/'],

frontend/src/api/generated/services/channels/index.ts

@@ -21,14 +21,23 @@ import type {
 	AlertmanagertypesPostableChannelDTO,
 	AlertmanagertypesPostableNotificationChannelDTO,
 	AlertmanagertypesReceiverDTO,
+	AlertmanagertypesTestableNotificationChannelDTO,
+	AlertmanagertypesUpdatableNotificationChannelDTO,
 	CreateChannel201,
 	CreateNotificationChannel201,
 	DeleteChannelByIDPathParameters,
+	DeleteNotificationChannelPathParameters,
 	GetChannelByID200,
 	GetChannelByIDPathParameters,
+	GetNotificationChannel200,
+	GetNotificationChannelPathParameters,
 	ListChannels200,
+	ListNotificationChannels200,
+	ListNotificationChannelsParams,
 	RenderErrorResponseDTO,
 	UpdateChannelByIDPathParameters,
+	UpdateNotificationChannel200,
+	UpdateNotificationChannelPathParameters,
 } from '../sigNoz.schemas';
 
 import { GeneratedAPIInstance } from '../../../generatedAPIInstance';
@@ -649,6 +658,105 @@ export const useTestChannelDeprecated = <
 > => {
 	return useMutation(getTestChannelDeprecatedMutationOptions(options));
 };
+/**
+ * Returns a page of notification channels for the org. Each entry carries the channel's identity and kind but not its configuration; fetch a channel by ID for that. Supports a case-insensitive display name search (`query`), a kind filter (`kind`), sort (`updated_at`/`created_at`/`name`), order (`asc`/`desc`), and offset-based pagination (`limit`/`offset`).
+ * @summary List notification channels
+ */
+export const listNotificationChannels = (
+	params?: ListNotificationChannelsParams,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<ListNotificationChannels200>({
+		url: `/api/v2/notification_channels`,
+		method: 'GET',
+		params,
+		signal,
+	});
+};
+
+export const getListNotificationChannelsQueryKey = (
+	params?: ListNotificationChannelsParams,
+) => {
+	return [`/api/v2/notification_channels`, ...(params ? [params] : [])] as const;
+};
+
+export const getListNotificationChannelsQueryOptions = <
+	TData = Awaited<ReturnType<typeof listNotificationChannels>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	params?: ListNotificationChannelsParams,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof listNotificationChannels>>,
+			TError,
+			TData
+		>;
+	},
+) => {
+	const { query: queryOptions } = options ?? {};
+
+	const queryKey =
+		queryOptions?.queryKey ?? getListNotificationChannelsQueryKey(params);
+
+	const queryFn: QueryFunction<
+		Awaited<ReturnType<typeof listNotificationChannels>>
+	> = ({ signal }) => listNotificationChannels(params, signal);
+
+	return { queryKey, queryFn, ...queryOptions } as UseQueryOptions<
+		Awaited<ReturnType<typeof listNotificationChannels>>,
+		TError,
+		TData
+	> & { queryKey: QueryKey };
+};
+
+export type ListNotificationChannelsQueryResult = NonNullable<
+	Awaited<ReturnType<typeof listNotificationChannels>>
+>;
+export type ListNotificationChannelsQueryError =
+	ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary List notification channels
+ */
+
+export function useListNotificationChannels<
+	TData = Awaited<ReturnType<typeof listNotificationChannels>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	params?: ListNotificationChannelsParams,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof listNotificationChannels>>,
+			TError,
+			TData
+		>;
+	},
+): UseQueryResult<TData, TError> & { queryKey: QueryKey } {
+	const queryOptions = getListNotificationChannelsQueryOptions(params, options);
+
+	const query = useQuery(queryOptions) as UseQueryResult<TData, TError> & {
+		queryKey: QueryKey;
+	};
+
+	return { ...query, queryKey: queryOptions.queryKey };
+}
+
+/**
+ * @summary List notification channels
+ */
+export const invalidateListNotificationChannels = async (
+	queryClient: QueryClient,
+	params?: ListNotificationChannelsParams,
+	options?: InvalidateOptions,
+): Promise<QueryClient> => {
+	await queryClient.invalidateQueries(
+		{ queryKey: getListNotificationChannelsQueryKey(params) },
+		options,
+	);
+
+	return queryClient;
+};
+
 /**
  * This endpoint creates a notification channel
  * @summary Create notification channel
@@ -733,3 +841,370 @@ export const useCreateNotificationChannel = <
 > => {
 	return useMutation(getCreateNotificationChannelMutationOptions(options));
 };
+/**
+ * This endpoint deletes a notification channel by ID
+ * @summary Delete notification channel
+ */
+export const deleteNotificationChannel = (
+	{ id }: DeleteNotificationChannelPathParameters,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<void>({
+		url: `/api/v2/notification_channels/${id}`,
+		method: 'DELETE',
+		signal,
+	});
+};
+
+export const getDeleteNotificationChannelMutationOptions = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof deleteNotificationChannel>>,
+		TError,
+		{ pathParams: DeleteNotificationChannelPathParameters },
+		TContext
+	>;
+}): UseMutationOptions<
+	Awaited<ReturnType<typeof deleteNotificationChannel>>,
+	TError,
+	{ pathParams: DeleteNotificationChannelPathParameters },
+	TContext
+> => {
+	const mutationKey = ['deleteNotificationChannel'];
+	const { mutation: mutationOptions } = options
+		? options.mutation &&
+			'mutationKey' in options.mutation &&
+			options.mutation.mutationKey
+			? options
+			: { ...options, mutation: { ...options.mutation, mutationKey } }
+		: { mutation: { mutationKey } };
+
+	const mutationFn: MutationFunction<
+		Awaited<ReturnType<typeof deleteNotificationChannel>>,
+		{ pathParams: DeleteNotificationChannelPathParameters }
+	> = (props) => {
+		const { pathParams } = props ?? {};
+
+		return deleteNotificationChannel(pathParams);
+	};
+
+	return { mutationFn, ...mutationOptions };
+};
+
+export type DeleteNotificationChannelMutationResult = NonNullable<
+	Awaited<ReturnType<typeof deleteNotificationChannel>>
+>;
+
+export type DeleteNotificationChannelMutationError =
+	ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Delete notification channel
+ */
+export const useDeleteNotificationChannel = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof deleteNotificationChannel>>,
+		TError,
+		{ pathParams: DeleteNotificationChannelPathParameters },
+		TContext
+	>;
+}): UseMutationResult<
+	Awaited<ReturnType<typeof deleteNotificationChannel>>,
+	TError,
+	{ pathParams: DeleteNotificationChannelPathParameters },
+	TContext
+> => {
+	return useMutation(getDeleteNotificationChannelMutationOptions(options));
+};
+/**
+ * This endpoint returns a notification channel by ID. A channel written by the v1 API can carry a configuration this API does not model.
+ * @summary Get notification channel by ID
+ */
+export const getNotificationChannel = (
+	{ id }: GetNotificationChannelPathParameters,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<GetNotificationChannel200>({
+		url: `/api/v2/notification_channels/${id}`,
+		method: 'GET',
+		signal,
+	});
+};
+
+export const getGetNotificationChannelQueryKey = ({
+	id,
+}: GetNotificationChannelPathParameters) => {
+	return [`/api/v2/notification_channels/${id}`] as const;
+};
+
+export const getGetNotificationChannelQueryOptions = <
+	TData = Awaited<ReturnType<typeof getNotificationChannel>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	{ id }: GetNotificationChannelPathParameters,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof getNotificationChannel>>,
+			TError,
+			TData
+		>;
+	},
+) => {
+	const { query: queryOptions } = options ?? {};
+
+	const queryKey =
+		queryOptions?.queryKey ?? getGetNotificationChannelQueryKey({ id });
+
+	const queryFn: QueryFunction<
+		Awaited<ReturnType<typeof getNotificationChannel>>
+	> = ({ signal }) => getNotificationChannel({ id }, signal);
+
+	return {
+		queryKey,
+		queryFn,
+		enabled: !!id,
+		...queryOptions,
+	} as UseQueryOptions<
+		Awaited<ReturnType<typeof getNotificationChannel>>,
+		TError,
+		TData
+	> & { queryKey: QueryKey };
+};
+
+export type GetNotificationChannelQueryResult = NonNullable<
+	Awaited<ReturnType<typeof getNotificationChannel>>
+>;
+export type GetNotificationChannelQueryError =
+	ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Get notification channel by ID
+ */
+
+export function useGetNotificationChannel<
+	TData = Awaited<ReturnType<typeof getNotificationChannel>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	{ id }: GetNotificationChannelPathParameters,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof getNotificationChannel>>,
+			TError,
+			TData
+		>;
+	},
+): UseQueryResult<TData, TError> & { queryKey: QueryKey } {
+	const queryOptions = getGetNotificationChannelQueryOptions({ id }, options);
+
+	const query = useQuery(queryOptions) as UseQueryResult<TData, TError> & {
+		queryKey: QueryKey;
+	};
+
+	return { ...query, queryKey: queryOptions.queryKey };
+}
+
+/**
+ * @summary Get notification channel by ID
+ */
+export const invalidateGetNotificationChannel = async (
+	queryClient: QueryClient,
+	{ id }: GetNotificationChannelPathParameters,
+	options?: InvalidateOptions,
+): Promise<QueryClient> => {
+	await queryClient.invalidateQueries(
+		{ queryKey: getGetNotificationChannelQueryKey({ id }) },
+		options,
+	);
+
+	return queryClient;
+};
+
+/**
+ * This endpoint replaces a notification channel's configuration in full. Neither name is part of the request body: both are immutable. The kind may change, which replaces the channel's notifier configuration.
+ * @summary Update notification channel
+ */
+export const updateNotificationChannel = (
+	{ id }: UpdateNotificationChannelPathParameters,
+	alertmanagertypesUpdatableNotificationChannelDTO?: BodyType<AlertmanagertypesUpdatableNotificationChannelDTO>,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<UpdateNotificationChannel200>({
+		url: `/api/v2/notification_channels/${id}`,
+		method: 'PUT',
+		headers: { 'Content-Type': 'application/json' },
+		data: alertmanagertypesUpdatableNotificationChannelDTO,
+		signal,
+	});
+};
+
+export const getUpdateNotificationChannelMutationOptions = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof updateNotificationChannel>>,
+		TError,
+		{
+			pathParams: UpdateNotificationChannelPathParameters;
+			data?: BodyType<AlertmanagertypesUpdatableNotificationChannelDTO>;
+		},
+		TContext
+	>;
+}): UseMutationOptions<
+	Awaited<ReturnType<typeof updateNotificationChannel>>,
+	TError,
+	{
+		pathParams: UpdateNotificationChannelPathParameters;
+		data?: BodyType<AlertmanagertypesUpdatableNotificationChannelDTO>;
+	},
+	TContext
+> => {
+	const mutationKey = ['updateNotificationChannel'];
+	const { mutation: mutationOptions } = options
+		? options.mutation &&
+			'mutationKey' in options.mutation &&
+			options.mutation.mutationKey
+			? options
+			: { ...options, mutation: { ...options.mutation, mutationKey } }
+		: { mutation: { mutationKey } };
+
+	const mutationFn: MutationFunction<
+		Awaited<ReturnType<typeof updateNotificationChannel>>,
+		{
+			pathParams: UpdateNotificationChannelPathParameters;
+			data?: BodyType<AlertmanagertypesUpdatableNotificationChannelDTO>;
+		}
+	> = (props) => {
+		const { pathParams, data } = props ?? {};
+
+		return updateNotificationChannel(pathParams, data);
+	};
+
+	return { mutationFn, ...mutationOptions };
+};
+
+export type UpdateNotificationChannelMutationResult = NonNullable<
+	Awaited<ReturnType<typeof updateNotificationChannel>>
+>;
+export type UpdateNotificationChannelMutationBody =
+	| BodyType<AlertmanagertypesUpdatableNotificationChannelDTO>
+	| undefined;
+export type UpdateNotificationChannelMutationError =
+	ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Update notification channel
+ */
+export const useUpdateNotificationChannel = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof updateNotificationChannel>>,
+		TError,
+		{
+			pathParams: UpdateNotificationChannelPathParameters;
+			data?: BodyType<AlertmanagertypesUpdatableNotificationChannelDTO>;
+		},
+		TContext
+	>;
+}): UseMutationResult<
+	Awaited<ReturnType<typeof updateNotificationChannel>>,
+	TError,
+	{
+		pathParams: UpdateNotificationChannelPathParameters;
+		data?: BodyType<AlertmanagertypesUpdatableNotificationChannelDTO>;
+	},
+	TContext
+> => {
+	return useMutation(getUpdateNotificationChannelMutationOptions(options));
+};
+/**
+ * This endpoint sends a test notification for the configuration in the request body. The channel need not exist and nothing is persisted, so the body carries a configuration only.
+ * @summary Test notification channel
+ */
+export const testNotificationChannel = (
+	alertmanagertypesTestableNotificationChannelDTO?: BodyType<AlertmanagertypesTestableNotificationChannelDTO>,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<void>({
+		url: `/api/v2/notification_channels/test`,
+		method: 'POST',
+		headers: { 'Content-Type': 'application/json' },
+		data: alertmanagertypesTestableNotificationChannelDTO,
+		signal,
+	});
+};
+
+export const getTestNotificationChannelMutationOptions = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof testNotificationChannel>>,
+		TError,
+		{ data?: BodyType<AlertmanagertypesTestableNotificationChannelDTO> },
+		TContext
+	>;
+}): UseMutationOptions<
+	Awaited<ReturnType<typeof testNotificationChannel>>,
+	TError,
+	{ data?: BodyType<AlertmanagertypesTestableNotificationChannelDTO> },
+	TContext
+> => {
+	const mutationKey = ['testNotificationChannel'];
+	const { mutation: mutationOptions } = options
+		? options.mutation &&
+			'mutationKey' in options.mutation &&
+			options.mutation.mutationKey
+			? options
+			: { ...options, mutation: { ...options.mutation, mutationKey } }
+		: { mutation: { mutationKey } };
+
+	const mutationFn: MutationFunction<
+		Awaited<ReturnType<typeof testNotificationChannel>>,
+		{ data?: BodyType<AlertmanagertypesTestableNotificationChannelDTO> }
+	> = (props) => {
+		const { data } = props ?? {};
+
+		return testNotificationChannel(data);
+	};
+
+	return { mutationFn, ...mutationOptions };
+};
+
+export type TestNotificationChannelMutationResult = NonNullable<
+	Awaited<ReturnType<typeof testNotificationChannel>>
+>;
+export type TestNotificationChannelMutationBody =
+	| BodyType<AlertmanagertypesTestableNotificationChannelDTO>
+	| undefined;
+export type TestNotificationChannelMutationError =
+	ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Test notification channel
+ */
+export const useTestNotificationChannel = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof testNotificationChannel>>,
+		TError,
+		{ data?: BodyType<AlertmanagertypesTestableNotificationChannelDTO> },
+		TContext
+	>;
+}): UseMutationResult<
+	Awaited<ReturnType<typeof testNotificationChannel>>,
+	TError,
+	{ data?: BodyType<AlertmanagertypesTestableNotificationChannelDTO> },
+	TContext
+> => {
+	return useMutation(getTestNotificationChannelMutationOptions(options));
+};

frontend/src/api/generated/services/sigNoz.schemas.ts

@@ -507,6 +507,15 @@ export enum AlertmanagertypesChannelKindDTO {
 	jsmops = 'jsmops',
 	incidentio = 'incidentio',
 }
+export enum AlertmanagertypesChannelListOrderDTO {
+	asc = 'asc',
+	desc = 'desc',
+}
+export enum AlertmanagertypesChannelListSortDTO {
+	updated_at = 'updated_at',
+	created_at = 'created_at',
+	name = 'name',
+}
 export interface ModelLabelSetDTO {
 	[key: string]: string;
 }
@@ -1000,6 +1009,44 @@ export interface AlertmanagertypesJiraReceiverConfigDTO {
 	wont_fix_resolution?: string;
 }
 
+export interface AlertmanagertypesListedNotificationChannelDTO {
+	/**
+	 * @type string
+	 * @format date-time
+	 */
+	createdAt: string;
+	/**
+	 * @type string
+	 */
+	displayName: string;
+	/**
+	 * @type string
+	 */
+	id: string;
+	kind: AlertmanagertypesChannelKindDTO;
+	/**
+	 * @type string
+	 */
+	name: string;
+	/**
+	 * @type string
+	 * @format date-time
+	 */
+	updatedAt: string;
+}
+
+export interface AlertmanagertypesListableNotificationChannelDTO {
+	/**
+	 * @type array
+	 */
+	channels: AlertmanagertypesListedNotificationChannelDTO[];
+	/**
+	 * @type integer
+	 * @format int64
+	 */
+	total: number;
+}
+
 export enum AlertmanagertypesMaintenanceKindDTO {
 	fixed = 'fixed',
 	recurring = 'recurring',
@@ -2391,6 +2438,14 @@ export interface AlertmanagertypesReceiverDTO {
 	wechat_configs?: ConfigWechatConfigDTO[];
 }
 
+export interface AlertmanagertypesTestableNotificationChannelDTO {
+	config: AlertmanagertypesChannelConfigDTO;
+}
+
+export interface AlertmanagertypesUpdatableNotificationChannelDTO {
+	config: AlertmanagertypesChannelConfigDTO;
+}
+
 export interface AuthtypesAttributeMappingDTO {
 	/**
 	 * @type string
@@ -4079,6 +4134,53 @@ export interface Querybuildertypesv5LogAggregationDTO {
 	expression?: string;
 }
 
+export enum Querybuildertypesv5BucketOptionsLinearDTOKind {
+	linear = 'linear',
+}
+export interface Querybuildertypesv5LinearBucketsSpecDTO {
+	/**
+	 * @type number
+	 * @format double
+	 */
+	maxValue: number;
+	/**
+	 * @type integer
+	 */
+	numBuckets?: number;
+}
+
+export interface Querybuildertypesv5BucketOptionsLinearDTO {
+	/**
+	 * @type string
+	 * @enum linear
+	 */
+	kind: Querybuildertypesv5BucketOptionsLinearDTOKind;
+	spec: Querybuildertypesv5LinearBucketsSpecDTO;
+}
+
+export enum Querybuildertypesv5BucketOptionsLogDTOKind {
+	log = 'log',
+}
+export interface Querybuildertypesv5LogBucketsSpecDTO {
+	/**
+	 * @type integer,null
+	 */
+	scale?: number | null;
+}
+
+export interface Querybuildertypesv5BucketOptionsLogDTO {
+	/**
+	 * @type string
+	 * @enum log
+	 */
+	kind: Querybuildertypesv5BucketOptionsLogDTOKind;
+	spec: Querybuildertypesv5LogBucketsSpecDTO;
+}
+
+export type Querybuildertypesv5BucketOptionsDTO =
+	| Querybuildertypesv5BucketOptionsLinearDTO
+	| Querybuildertypesv5BucketOptionsLogDTO;
+
 export interface Querybuildertypesv5FilterDTO {
 	/**
 	 * @type string
@@ -4272,6 +4374,7 @@ export interface Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTyp
 	 * @type array,null
 	 */
 	aggregations?: Querybuildertypesv5LogAggregationDTO[] | null;
+	bucketOptions?: Querybuildertypesv5BucketOptionsDTO;
 	/**
 	 * @type string
 	 */
@@ -4399,6 +4502,7 @@ export interface Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTyp
 	 * @type array,null
 	 */
 	aggregations?: Querybuildertypesv5MetricAggregationDTO[] | null;
+	bucketOptions?: Querybuildertypesv5BucketOptionsDTO;
 	/**
 	 * @type string
 	 */
@@ -4474,6 +4578,7 @@ export interface Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTyp
 	 * @type array,null
 	 */
 	aggregations?: Querybuildertypesv5TraceAggregationDTO[] | null;
+	bucketOptions?: Querybuildertypesv5BucketOptionsDTO;
 	/**
 	 * @type string
 	 */
@@ -4914,6 +5019,57 @@ export interface DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDa
 	spec: DashboardtypesListPanelSpecDTO;
 }
 
+export enum DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTextPanelSpecDTOKind {
+	'signoz/TextPanel' = 'signoz/TextPanel',
+}
+export interface DashboardtypesHeaderOptionsDTO {
+	/**
+	 * @type boolean
+	 */
+	hide?: boolean;
+}
+
+export enum DashboardtypesTextModeDTO {
+	markdown = 'markdown',
+}
+export enum DashboardtypesTextAlignDTO {
+	left = 'left',
+	center = 'center',
+	right = 'right',
+}
+export enum DashboardtypesVerticalAlignDTO {
+	top = 'top',
+	center = 'center',
+	bottom = 'bottom',
+}
+export interface DashboardtypesTextPresentationDTO {
+	/**
+	 * @type string,null
+	 */
+	background?: string | null;
+	textAlign?: DashboardtypesTextAlignDTO;
+	verticalAlign?: DashboardtypesVerticalAlignDTO;
+}
+
+export interface DashboardtypesTextPanelSpecDTO {
+	headerOptions?: DashboardtypesHeaderOptionsDTO;
+	mode?: DashboardtypesTextModeDTO;
+	presentation?: DashboardtypesTextPresentationDTO;
+	/**
+	 * @type string
+	 */
+	text?: string;
+}
+
+export interface DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTextPanelSpecDTO {
+	/**
+	 * @enum signoz/TextPanel
+	 * @type string
+	 */
+	kind: DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTextPanelSpecDTOKind;
+	spec: DashboardtypesTextPanelSpecDTO;
+}
+
 export type DashboardtypesPanelPluginDTO =
 	| DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTimeSeriesPanelSpecDTO
 	| DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesBarChartPanelSpecDTO
@@ -4921,7 +5077,8 @@ export type DashboardtypesPanelPluginDTO =
 	| DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesPieChartPanelSpecDTO
 	| DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTablePanelSpecDTO
 	| DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesHistogramPanelSpecDTO
-	| DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesListPanelSpecDTO;
+	| DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesListPanelSpecDTO
+	| DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTextPanelSpecDTO;
 
 export enum Querybuildertypesv5RequestTypeDTO {
 	scalar = 'scalar',
@@ -4929,6 +5086,7 @@ export enum Querybuildertypesv5RequestTypeDTO {
 	raw = 'raw',
 	raw_stream = 'raw_stream',
 	trace = 'trace',
+	heatmap = 'heatmap',
 }
 export enum DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesBuilderQuerySpecDTOKind {
 	'signoz/BuilderQuery' = 'signoz/BuilderQuery',
@@ -4975,6 +5133,7 @@ export interface Querybuildertypesv5QueryEnvelopeBuilderAIDTO {
 }
 
 export interface Querybuildertypesv5QueryBuilderFormulaDTO {
+	bucketOptions?: Querybuildertypesv5BucketOptionsDTO;
 	/**
 	 * @type boolean
 	 */
@@ -5843,6 +6002,7 @@ export enum DashboardtypesPanelPluginKindDTO {
 	'signoz/TablePanel' = 'signoz/TablePanel',
 	'signoz/HistogramPanel' = 'signoz/HistogramPanel',
 	'signoz/ListPanel' = 'signoz/ListPanel',
+	'signoz/TextPanel' = 'signoz/TextPanel',
 }
 /**
  * @nullable
@@ -8542,16 +8702,7 @@ export interface Querybuildertypesv5LabelDTO {
 	value?: Querybuildertypesv5LabelDTOValue;
 }
 
-export interface Querybuildertypesv5BucketDTO {
-	/**
-	 * @type number
-	 * @format double
-	 */
-	step?: number;
-}
-
 export interface Querybuildertypesv5TimeSeriesValueDTO {
-	bucket?: Querybuildertypesv5BucketDTO;
 	/**
 	 * @type boolean
 	 */
@@ -9102,12 +9253,16 @@ export interface PromotetypesPromotePathDTO {
 	promote?: boolean;
 }
 
-export type Querybuildertypesv5AggregationBucketDTOMeta = {
+export interface Querybuildertypesv5AggregationMetaDTO {
+	/**
+	 * @type array
+	 */
+	buckets?: number[];
 	/**
 	 * @type string
 	 */
 	unit?: string;
-};
+}
 
 export interface Querybuildertypesv5AggregationBucketDTO {
 	/**
@@ -9126,10 +9281,7 @@ export interface Querybuildertypesv5AggregationBucketDTO {
 	 * @type array
 	 */
 	lowerBoundSeries?: Querybuildertypesv5TimeSeriesDTO[];
-	/**
-	 * @type object
-	 */
-	meta?: Querybuildertypesv5AggregationBucketDTOMeta;
+	meta?: Querybuildertypesv5AggregationMetaDTO;
 	/**
 	 * @type array
 	 */
@@ -9144,6 +9296,10 @@ export interface Querybuildertypesv5AggregationBucketDTO {
 	upperBoundSeries?: Querybuildertypesv5TimeSeriesDTO[];
 }
 
+export enum Querybuildertypesv5BucketsKindDTO {
+	linear = 'linear',
+	log = 'log',
+}
 export type Querybuildertypesv5ColumnDescriptorDTOMeta = {
 	/**
 	 * @type string
@@ -9610,6 +9766,10 @@ export interface RulestatehistorytypesGettableRuleStateHistoryDTO {
 	 * @type boolean
 	 */
 	overallStateChanged: boolean;
+	/**
+	 * @type string
+	 */
+	relatedAITracesLink?: string;
 	/**
 	 * @type string
 	 */
@@ -9658,6 +9818,10 @@ export interface RulestatehistorytypesGettableRuleStateHistoryContributorDTO {
 	 * @type array,null
 	 */
 	labels: Querybuildertypesv5LabelDTO[] | null;
+	/**
+	 * @type string
+	 */
+	relatedAITracesLink?: string;
 	/**
 	 * @type string
 	 */
@@ -9753,6 +9917,7 @@ export enum RuletypesAlertTypeDTO {
 	TRACES_BASED_ALERT = 'TRACES_BASED_ALERT',
 	LOGS_BASED_ALERT = 'LOGS_BASED_ALERT',
 	EXCEPTIONS_BASED_ALERT = 'EXCEPTIONS_BASED_ALERT',
+	AI_TRACES_BASED_ALERT = 'AI_TRACES_BASED_ALERT',
 }
 export enum RuletypesMatchTypeDTO {
 	at_least_once = 'at_least_once',
@@ -13162,6 +13327,44 @@ export type GetMetricsTreemap200 = {
 	status: string;
 };
 
+export type ListNotificationChannelsParams = {
+	/**
+	 * @type string
+	 * @description undefined
+	 */
+	query?: string;
+	/**
+	 * @description undefined
+	 */
+	kind?: AlertmanagertypesChannelKindDTO;
+	/**
+	 * @description undefined
+	 */
+	sort?: AlertmanagertypesChannelListSortDTO;
+	/**
+	 * @description undefined
+	 */
+	order?: AlertmanagertypesChannelListOrderDTO;
+	/**
+	 * @type integer
+	 * @description undefined
+	 */
+	limit?: number;
+	/**
+	 * @type integer
+	 * @description undefined
+	 */
+	offset?: number;
+};
+
+export type ListNotificationChannels200 = {
+	data: AlertmanagertypesListableNotificationChannelDTO;
+	/**
+	 * @type string
+	 */
+	status: string;
+};
+
 export type CreateNotificationChannel201 = {
 	data: AlertmanagertypesGettableNotificationChannelDTO;
 	/**
@@ -13170,6 +13373,31 @@ export type CreateNotificationChannel201 = {
 	status: string;
 };
 
+export type DeleteNotificationChannelPathParameters = {
+	id: string;
+};
+export type GetNotificationChannelPathParameters = {
+	id: string;
+};
+export type GetNotificationChannel200 = {
+	data: AlertmanagertypesGettableNotificationChannelDTO;
+	/**
+	 * @type string
+	 */
+	status: string;
+};
+
+export type UpdateNotificationChannelPathParameters = {
+	id: string;
+};
+export type UpdateNotificationChannel200 = {
+	data: AlertmanagertypesGettableNotificationChannelDTO;
+	/**
+	 * @type string
+	 */
+	status: string;
+};
+
 export type GetMyOrganization200 = {
 	data: TypesOrganizationDTO;
 	/**

frontend/src/components/MarkdownEditor/EditorStatusBar.tsx

@@ -0,0 +1,45 @@
+import type { ReactNode } from 'react';
+import { Typography } from '@signozhq/ui/typography';
+import cx from 'classnames';
+
+import type { CursorPosition } from './types';
+
+import styles from './MarkdownEditor.module.scss';
+
+interface EditorStatusBarProps {
+	cursor: CursorPosition;
+	length: number;
+	maxLength: number;
+	hint?: ReactNode;
+}
+
+function EditorStatusBar({
+	cursor,
+	length,
+	maxLength,
+	hint,
+}: EditorStatusBarProps): JSX.Element {
+	const isOverLimit = length > maxLength;
+
+	return (
+		<div className={styles.statusBar} data-testid="markdown-editor-status">
+			<Typography.Text className={styles.statusPosition}>
+				{`Ln ${cursor.line}, Col ${cursor.column}`}
+				<span className={styles.statusSeparator}>·</span>
+				<span
+					className={cx(styles.statusCount, {
+						[styles.statusCountOverLimit]: isOverLimit,
+					})}
+					data-testid="markdown-editor-char-count"
+				>
+					{isOverLimit ? `${length} / ${maxLength} chars` : `${length} chars`}
+				</span>
+			</Typography.Text>
+			{hint && (
+				<Typography.Text className={styles.statusHint}>{hint}</Typography.Text>
+			)}
+		</div>
+	);
+}
+
+export default EditorStatusBar;

frontend/src/components/MarkdownEditor/EditorToolbar.tsx

@@ -0,0 +1,93 @@
+import type { ReactNode } from 'react';
+import {
+	Bold,
+	CodeXml,
+	Heading,
+	Italic,
+	Link,
+	List,
+	ListOrdered,
+	Table,
+	Type,
+} from '@signozhq/icons';
+import { Button } from '@signozhq/ui/button';
+import { TooltipSimple } from '@signozhq/ui/tooltip';
+import { Typography } from '@signozhq/ui/typography';
+
+import InsertVariableMenu from './InsertVariableMenu';
+import MarkdownHelp from './MarkdownHelp';
+import type { EditorCommand, EditorVariable } from './types';
+
+import styles from './MarkdownEditor.module.scss';
+
+const COMMAND_ICONS: Record<string, ReactNode> = {
+	heading: <Heading size={14} />,
+	bold: <Bold size={14} />,
+	italic: <Italic size={14} />,
+	'bulleted-list': <List size={14} />,
+	'numbered-list': <ListOrdered size={14} />,
+	link: <Link size={14} />,
+	code: <CodeXml size={14} />,
+	table: <Table size={14} />,
+};
+
+interface EditorToolbarProps {
+	formatLabel: string;
+	commands: EditorCommand[];
+	onRunCommand: (command: EditorCommand) => void;
+	variables: EditorVariable[];
+	onInsertVariable: (name: string) => void;
+	disabled: boolean;
+	extra?: ReactNode;
+}
+
+function EditorToolbar({
+	formatLabel,
+	commands,
+	onRunCommand,
+	variables,
+	onInsertVariable,
+	disabled,
+	extra,
+}: EditorToolbarProps): JSX.Element {
+	return (
+		<div className={styles.toolbar} data-testid="markdown-editor-toolbar">
+			<span className={styles.formatChip}>
+				<Type size={14} />
+				<Typography.Text className={styles.formatLabel}>
+					{formatLabel}
+				</Typography.Text>
+			</span>
+			<span className={styles.toolbarDivider} />
+			<div className={styles.commands}>
+				{commands.map((command) => (
+					<TooltipSimple key={command.id} title={command.label}>
+						<Button
+							type="button"
+							variant="ghost"
+							color="secondary"
+							size="icon"
+							disabled={disabled}
+							aria-label={command.label}
+							data-testid={`markdown-command-${command.id}`}
+							onClick={(): void => onRunCommand(command)}
+						>
+							{COMMAND_ICONS[command.id]}
+						</Button>
+					</TooltipSimple>
+				))}
+			</div>
+			<div className={styles.toolbarEnd}>
+				{extra}
+				<InsertVariableMenu
+					variables={variables}
+					onSelect={onInsertVariable}
+					disabled={disabled}
+				/>
+				<MarkdownHelp />
+			</div>
+		</div>
+	);
+}
+
+export default EditorToolbar;

frontend/src/components/MarkdownEditor/InsertVariableMenu.tsx

@@ -0,0 +1,91 @@
+import { useMemo, useState } from 'react';
+import { ChevronDown, DollarSign, Search } from '@signozhq/icons';
+import { Button } from '@signozhq/ui/button';
+import { DropdownMenuSimple, type MenuItem } from '@signozhq/ui/dropdown-menu';
+
+import type { EditorVariable } from './types';
+
+import styles from './MarkdownEditor.module.scss';
+
+interface InsertVariableMenuProps {
+	variables: EditorVariable[];
+	/** Receives the variable name; the caller decides the token syntax. */
+	onSelect: (name: string) => void;
+	disabled: boolean;
+}
+
+function toMenuItems(
+	variables: EditorVariable[],
+	onSelect: (name: string) => void,
+): MenuItem[] {
+	return variables.map((variable) => ({
+		key: variable.name,
+		label: (
+			<span
+				className={styles.variableRow}
+				data-testid={`markdown-variable-${variable.name}`}
+			>
+				<span className={styles.variableName}>{`$${variable.name}`}</span>
+				{variable.badge && (
+					<span className={styles.variableBadge}>{variable.badge}</span>
+				)}
+			</span>
+		),
+		onClick: (): void => onSelect(variable.name),
+	}));
+}
+
+/** Searchable variable picker; hidden entirely when there is nothing to insert. */
+function InsertVariableMenu({
+	variables,
+	onSelect,
+	disabled,
+}: InsertVariableMenuProps): JSX.Element | null {
+	const [search, setSearch] = useState('');
+
+	const matches = useMemo(() => {
+		const query = search.trim().toLowerCase();
+		return query
+			? variables.filter((variable) => variable.name.toLowerCase().includes(query))
+			: variables;
+	}, [variables, search]);
+
+	const items = useMemo(
+		() => toMenuItems(matches, onSelect),
+		[matches, onSelect],
+	);
+
+	if (variables.length === 0) {
+		return null;
+	}
+
+	return (
+		<DropdownMenuSimple
+			className={styles.variableMenu}
+			menu={{
+				items,
+				search: {
+					placeholder: 'Search variables',
+					searchIcon: <Search size={14} />,
+					onSearchChange: setSearch,
+				},
+			}}
+		>
+			<Button
+				type="button"
+				variant="outlined"
+				color="secondary"
+				size="sm"
+				disabled={disabled}
+				prefix={<DollarSign size={14} className={styles.insertVariableIcon} />}
+				suffix={<ChevronDown size={14} />}
+				className={styles.insertVariable}
+				data-testid="markdown-insert-variable"
+			>
+				Insert variable
+			</Button>
+		</DropdownMenuSimple>
+	);
+}
+
+export default InsertVariableMenu;

frontend/src/components/MarkdownEditor/MarkdownEditor.module.scss

@@ -0,0 +1,253 @@
+@use '../../styles/scrollbar' as *;
+
+.container {
+	// Read by the decoration theme in `markdownHighlight`, which can't see SCSS.
+	--md-syntax-heading: var(--text-vanilla-100);
+	--md-syntax-strong: var(--text-vanilla-100);
+	--md-syntax-emphasis: var(--text-vanilla-300);
+	--md-syntax-quote: var(--text-vanilla-400);
+	--md-syntax-marker: var(--text-robin-300);
+	--md-syntax-code: var(--text-forest-400);
+	--md-syntax-link: var(--text-robin-400);
+	--md-syntax-variable: var(--text-amber-400);
+
+	display: flex;
+	flex-direction: column;
+	height: 100%;
+	min-height: 0;
+	background: var(--l1-background);
+}
+
+:global(body.lightMode) .container {
+	--md-syntax-heading: var(--text-ink-400);
+	--md-syntax-strong: var(--text-ink-400);
+	--md-syntax-emphasis: var(--text-ink-200);
+	--md-syntax-quote: var(--text-neutral-light-100);
+	--md-syntax-marker: var(--text-robin-500);
+	--md-syntax-code: var(--text-forest-700);
+	--md-syntax-link: var(--text-robin-500);
+	--md-syntax-variable: var(--text-sienna-500);
+}
+
+.toolbar {
+	display: flex;
+	align-items: center;
+	gap: 8px;
+	flex-shrink: 0;
+	padding: 8px 12px;
+	border-bottom: 1px solid var(--l1-border);
+}
+
+.formatChip {
+	display: inline-flex;
+	align-items: center;
+	gap: 6px;
+	padding: 4px 8px;
+	border: 1px solid var(--l1-border);
+	border-radius: 2px;
+	color: var(--text-sienna-400);
+}
+
+.formatLabel {
+	font-size: 12px;
+	font-weight: 500;
+	color: var(--l1-foreground);
+}
+
+.toolbarDivider {
+	width: 1px;
+	height: 16px;
+	flex-shrink: 0;
+	background: var(--l1-border);
+}
+
+.commands {
+	display: flex;
+	align-items: center;
+	gap: 2px;
+}
+
+.toolbarEnd {
+	display: flex;
+	align-items: center;
+	gap: 8px;
+	margin-left: auto;
+}
+
+.insertVariable {
+	white-space: nowrap;
+}
+
+.insertVariableIcon {
+	color: var(--text-amber-400);
+}
+
+// The ui library's dropdown assumes a global border-box reset this app doesn't
+// have (`box-sizing` is set on `body` only and doesn't inherit): its items are
+// `width: 100%` + padding, so in the portal they lay out content-box and
+// overflow the popup by the padding — clipping the flush-right badge.
+.variableMenu,
+.variableMenu * {
+	box-sizing: border-box;
+}
+
+.variableMenu {
+	width: 320px;
+}
+
+// Shrinkable, so a clamped popup truncates the name instead of clipping the
+// badge at the content's `overflow: hidden` edge.
+.variableRow {
+	display: flex;
+	align-items: center;
+	gap: 12px;
+	flex: 1;
+	min-width: 0;
+}
+
+.variableName {
+	font-family: var(--font-family-sf-mono);
+	min-width: 0;
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+}
+
+.variableBadge {
+	flex-shrink: 0;
+	margin-left: auto;
+	padding: 2px 6px;
+	border: 1px solid color-mix(in srgb, var(--text-amber-400) 40%, transparent);
+	border-radius: 4px;
+	font-family: var(--font-family-sf-mono);
+	font-size: 10px;
+	letter-spacing: 0.08em;
+	text-transform: uppercase;
+	color: var(--text-amber-400);
+}
+
+.editorArea {
+	flex: 1;
+	min-height: 0;
+	overflow: hidden;
+}
+
+.codeMirror {
+	height: 100%;
+	font-family: var(--font-family-sf-mono);
+	font-size: 13px;
+
+	:global(.cm-editor) {
+		height: 100%;
+		background: transparent;
+	}
+
+	:global(.cm-editor.cm-focused) {
+		outline: none;
+	}
+
+	:global(.cm-gutters) {
+		background: transparent;
+		border-right: none;
+		color: var(--text-neutral-dark-200);
+	}
+
+	:global(.cm-scroller) {
+		line-height: 20px;
+		padding: 0 12px;
+		@include custom-scrollbar;
+	}
+
+	:global(.cm-content) {
+		padding: 8px 0;
+	}
+}
+
+.statusBar {
+	display: flex;
+	align-items: center;
+	justify-content: space-between;
+	gap: 12px;
+	flex-shrink: 0;
+	padding: 6px 12px;
+	border-top: 1px solid var(--l1-border);
+}
+
+.statusPosition {
+	display: inline-flex;
+	align-items: center;
+	gap: 6px;
+	font-family: var(--font-family-sf-mono);
+	font-size: 11px;
+	color: var(--text-neutral-dark-200);
+}
+
+.statusSeparator {
+	color: var(--l1-border);
+}
+
+.statusCount {
+	color: inherit;
+}
+
+.statusCountOverLimit {
+	color: var(--text-cherry-400);
+	font-weight: 600;
+}
+
+.statusHint {
+	font-size: 11px;
+	color: var(--text-neutral-dark-200);
+}
+
+.helpContent {
+	width: 280px;
+	max-height: 320px;
+	overflow-y: auto;
+	@include custom-scrollbar;
+}
+
+.helpTitle {
+	display: block;
+	margin-bottom: 8px;
+	font-size: 11px;
+	font-weight: 600;
+	letter-spacing: 0.06em;
+	text-transform: uppercase;
+	color: var(--text-neutral-dark-200);
+}
+
+.helpList {
+	display: flex;
+	flex-direction: column;
+	gap: 6px;
+	margin: 0;
+}
+
+.helpRow {
+	display: flex;
+	align-items: center;
+	justify-content: space-between;
+	gap: 12px;
+
+	dt {
+		margin: 0;
+
+		code {
+			font-family: var(--font-family-sf-mono);
+			font-size: 11px;
+			color: var(--text-forest-400);
+		}
+	}
+
+	dd {
+		margin: 0;
+		font-size: 11px;
+		color: var(--text-neutral-dark-200);
+	}
+}
+
+// The help popover portals out of `.container`, so it can't inherit its tokens.
+:global(body.lightMode) .helpRow dt code {
+	color: var(--text-forest-700);
+}

frontend/src/components/MarkdownEditor/MarkdownEditor.tsx

@@ -0,0 +1,245 @@
+import {
+	type ReactNode,
+	useCallback,
+	useEffect,
+	useMemo,
+	useRef,
+	useState,
+} from 'react';
+import { copilot } from '@uiw/codemirror-theme-copilot';
+import { githubLight } from '@uiw/codemirror-theme-github';
+import CodeMirror, {
+	type BasicSetupOptions,
+	EditorView,
+	type ViewUpdate,
+} from '@uiw/react-codemirror';
+import cx from 'classnames';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+
+import { formatVariableToken, MARKDOWN_MAX_LENGTH } from './constants';
+import EditorStatusBar from './EditorStatusBar';
+import EditorToolbar from './EditorToolbar';
+import { applyTransform, replaceDocument } from './editorDocument';
+import { insertText, MARKDOWN_COMMANDS } from './markdownCommands';
+import { markdownHighlight } from './markdownHighlight';
+import type {
+	CursorPosition,
+	EditorCommand,
+	EditorTransform,
+	EditorVariable,
+} from './types';
+
+import styles from './MarkdownEditor.module.scss';
+
+/** What the status bar reports. */
+type DocumentStatus = CursorPosition & { length: number };
+
+// No language grammar is loaded, so bracket/indent/completion behaviour would only
+// get in the way of prose. `indentWithTab` stays off so Tab keeps moving focus.
+const BASIC_SETUP: BasicSetupOptions = {
+	lineNumbers: true,
+	highlightActiveLine: true,
+	highlightActiveLineGutter: true,
+	foldGutter: false,
+	autocompletion: false,
+	bracketMatching: false,
+	closeBrackets: false,
+	indentOnInput: false,
+	syntaxHighlighting: false,
+	highlightSelectionMatches: false,
+	rectangularSelection: false,
+	crosshairCursor: false,
+	searchKeymap: false,
+	foldKeymap: false,
+	lintKeymap: false,
+	completionKeymap: false,
+	closeBracketsKeymap: false,
+};
+
+const EMPTY_VARIABLES: EditorVariable[] = [];
+
+export interface MarkdownEditorProps {
+	/** Seeds the document; replaced only from outside. See the sync effect. */
+	value: string;
+	onChange: (value: string) => void;
+	/** Offered by the "Insert variable" menu; the button disables when empty. */
+	variables?: EditorVariable[];
+	/** What the character counter reports against. */
+	maxLength?: number;
+	placeholder?: string;
+	readOnly?: boolean;
+	/** Shown on the toolbar chip. */
+	formatLabel?: string;
+	/** Rendered before the "Insert variable" menu. */
+	toolbarExtra?: ReactNode;
+	/** Right-hand status-bar note, e.g. "Preview updates as you type". */
+	statusHint?: ReactNode;
+	autoFocus?: boolean;
+	className?: string;
+	testId?: string;
+}
+
+/**
+ * Source editor for Markdown bodies. Source-only: it neither parses nor renders
+ * the body, so the preview surface and its sanitisation stay the caller's concern.
+ */
+function MarkdownEditor({
+	value,
+	onChange,
+	variables = EMPTY_VARIABLES,
+	maxLength = MARKDOWN_MAX_LENGTH,
+	placeholder = 'Write Markdown…',
+	readOnly = false,
+	formatLabel = 'Markdown',
+	toolbarExtra,
+	statusHint,
+	autoFocus = false,
+	className,
+	testId = 'markdown-editor',
+}: MarkdownEditorProps): JSX.Element {
+	const isDarkMode = useIsDarkMode();
+	const viewRef = useRef<EditorView | null>(null);
+	// Set while a programmatic replacement is in flight, so the caller isn't told
+	// about a change it asked for. `dispatch` runs listeners synchronously, so the
+	// window is exactly one call.
+	const isSyncingRef = useRef(false);
+	const previousValueRef = useRef(value);
+	const hasSeededRef = useRef(false);
+	const [isEditorReady, setIsEditorReady] = useState(false);
+	const [status, setStatus] = useState<DocumentStatus>(() => ({
+		line: 1,
+		column: 1,
+		length: value.length,
+	}));
+
+	const syncDocument = useCallback((view: EditorView, next: string): void => {
+		isSyncingRef.current = true;
+		replaceDocument(view, next);
+		isSyncingRef.current = false;
+	}, []);
+
+	const onCreateEditor = useCallback((view: EditorView): void => {
+		viewRef.current = view;
+		setIsEditorReady(true);
+	}, []);
+
+	/**
+	 * Seeds the document, then applies external replacements — nothing else. Keeping
+	 * keystrokes out of this round-trip is what stops a stale `value` from replacing
+	 * the document and resetting the caret when typing outpaces React.
+	 *
+	 * The seed can't go in `onCreateEditor`: the wrapper defaults its own `value` to
+	 * `''` and reconciles against it once the view exists, wiping anything written
+	 * before that. `isEditorReady` puts this effect after that pass, since a parent's
+	 * effects flush after its children's.
+	 *
+	 * Focus marks ownership: a replacement arriving mid-typing is dropped rather than
+	 * applied over the author.
+	 */
+	useEffect(() => {
+		const view = viewRef.current;
+		if (!view) {
+			return;
+		}
+
+		const previous = previousValueRef.current;
+		previousValueRef.current = value;
+		const isSeeding = !hasSeededRef.current;
+		hasSeededRef.current = true;
+
+		if (!isSeeding && (value === previous || view.hasFocus)) {
+			return;
+		}
+		if (view.state.doc.toString() !== value) {
+			syncDocument(view, value);
+		}
+	}, [value, isEditorReady, syncDocument]);
+
+	const handleChange = useCallback(
+		(next: string): void => {
+			if (!isSyncingRef.current) {
+				onChange(next);
+			}
+		},
+		[onChange],
+	);
+
+	const runTransform = useCallback((transform: EditorTransform): void => {
+		const view = viewRef.current;
+		if (view) {
+			applyTransform(view, transform);
+		}
+	}, []);
+
+	const onRunCommand = useCallback(
+		(command: EditorCommand): void => runTransform(command.run),
+		[runTransform],
+	);
+
+	const onInsertVariable = useCallback(
+		(name: string): void =>
+			runTransform((snapshot) => insertText(snapshot, formatVariableToken(name))),
+		[runTransform],
+	);
+
+	const extensions = useMemo(
+		() => [markdownHighlight(), EditorView.lineWrapping],
+		[],
+	);
+
+	// From the document, not `value`: the caller may debounce or drop a change, and
+	// the counter has to match what the author sees.
+	const onUpdate = useCallback((update: ViewUpdate): void => {
+		if (!update.selectionSet && !update.docChanged) {
+			return;
+		}
+		const { head } = update.state.selection.main;
+		const line = update.state.doc.lineAt(head);
+		setStatus({
+			line: line.number,
+			column: head - line.from + 1,
+			length: update.state.doc.length,
+		});
+	}, []);
+
+	return (
+		<div className={cx(styles.container, className)} data-testid={testId}>
+			<EditorToolbar
+				formatLabel={formatLabel}
+				commands={MARKDOWN_COMMANDS}
+				onRunCommand={onRunCommand}
+				variables={variables}
+				onInsertVariable={onInsertVariable}
+				disabled={readOnly}
+				extra={toolbarExtra}
+			/>
+			<div className={styles.editorArea}>
+				<CodeMirror
+					className={styles.codeMirror}
+					// No `value`: passing it re-enables the wrapper's own reconciliation,
+					// and with it the caret reset.
+					onCreateEditor={onCreateEditor}
+					onChange={handleChange}
+					onUpdate={onUpdate}
+					theme={isDarkMode ? copilot : githubLight}
+					basicSetup={BASIC_SETUP}
+					placeholder={placeholder}
+					editable={!readOnly}
+					readOnly={readOnly}
+					indentWithTab={false}
+					autoFocus={autoFocus}
+					extensions={extensions}
+					height="100%"
+				/>
+			</div>
+			<EditorStatusBar
+				cursor={status}
+				length={status.length}
+				maxLength={maxLength}
+				hint={statusHint}
+			/>
+		</div>
+	);
+}
+
+export default MarkdownEditor;

frontend/src/components/MarkdownEditor/MarkdownHelp.tsx

@@ -0,0 +1,44 @@
+import { CircleHelp } from '@signozhq/icons';
+import { Button } from '@signozhq/ui/button';
+import { Popover, PopoverContent, PopoverTrigger } from '@signozhq/ui/popover';
+import { Typography } from '@signozhq/ui/typography';
+
+import { MARKDOWN_HELP_ITEMS } from './constants';
+
+import styles from './MarkdownEditor.module.scss';
+
+function MarkdownHelp(): JSX.Element {
+	return (
+		<Popover>
+			<PopoverTrigger asChild>
+				<Button
+					type="button"
+					variant="ghost"
+					color="secondary"
+					size="icon"
+					aria-label="Markdown syntax help"
+					data-testid="markdown-help-trigger"
+				>
+					<CircleHelp size={14} />
+				</Button>
+			</PopoverTrigger>
+			<PopoverContent align="end" className={styles.helpContent}>
+				<Typography.Text className={styles.helpTitle}>
+					Markdown syntax
+				</Typography.Text>
+				<dl className={styles.helpList}>
+					{MARKDOWN_HELP_ITEMS.map((item) => (
+						<div key={item.syntax} className={styles.helpRow}>
+							<dt>
+								<code>{item.syntax}</code>
+							</dt>
+							<dd>{item.label}</dd>
+						</div>
+					))}
+				</dl>
+			</PopoverContent>
+		</Popover>
+	);
+}
+
+export default MarkdownHelp;

frontend/src/components/MarkdownEditor/__tests__/MarkdownEditor.test.tsx

@@ -0,0 +1,270 @@
+import { useCallback, useRef, useState } from 'react';
+import { EditorView } from '@uiw/react-codemirror';
+import { mockCodeMirrorDomApis } from 'components/QueryBuilderV2/QueryV2/__tests__/codemirrorDomMocks';
+import {
+	act,
+	fireEvent,
+	render,
+	screen,
+	userEvent,
+	waitFor,
+} from 'tests/test-utils';
+
+import MarkdownEditor from '../MarkdownEditor';
+import type { EditorVariable } from '../types';
+
+beforeAll(() => {
+	mockCodeMirrorDomApis();
+});
+
+jest.mock('hooks/useDarkMode', () => ({
+	useIsDarkMode: (): boolean => true,
+}));
+
+const VARIABLES: EditorVariable[] = [
+	{ name: 'environment', badge: 'QUERY' },
+	{ name: 'service', badge: 'CUSTOM' },
+];
+
+/** A caller whose state trails the editor by one keystroke. */
+function LaggingHarness(): JSX.Element {
+	const [value, setValue] = useState('');
+	const previousRef = useRef('');
+	const onChange = useCallback((next: string): void => {
+		setValue(previousRef.current);
+		previousRef.current = next;
+	}, []);
+
+	return <MarkdownEditor value={value} onChange={onChange} />;
+}
+
+/** Pushes a replacement in from outside the editor. */
+function ExternalHarness(): JSX.Element {
+	const [value, setValue] = useState('before');
+
+	return (
+		<>
+			<button type="button" onClick={(): void => setValue('after')}>
+				push
+			</button>
+			<MarkdownEditor value={value} onChange={setValue} />
+		</>
+	);
+}
+
+function Harness({
+	initialValue = '',
+	maxLength,
+	variables = VARIABLES,
+}: {
+	initialValue?: string;
+	maxLength?: number;
+	variables?: EditorVariable[];
+}): JSX.Element {
+	const [value, setValue] = useState(initialValue);
+	return (
+		<MarkdownEditor
+			value={value}
+			onChange={setValue}
+			variables={variables}
+			maxLength={maxLength}
+			statusHint="Preview updates as you type"
+		/>
+	);
+}
+
+const getView = (): EditorView => {
+	const dom = document.querySelector('.cm-editor');
+	const view = dom ? EditorView.findFromDOM(dom as HTMLElement) : null;
+	if (!view) {
+		throw new Error('editor view not mounted');
+	}
+	return view;
+};
+
+const select = (from: number, to: number): void => {
+	act(() => {
+		getView().dispatch({ selection: { anchor: from, head: to } });
+	});
+};
+
+const documentText = (): string => getView().state.doc.toString();
+
+describe('MarkdownEditor', () => {
+	it('reports the caret position and character count', async () => {
+		render(<Harness initialValue={'one\ntwo'} />);
+
+		select(5, 5);
+
+		await waitFor(() => {
+			expect(screen.getByTestId('markdown-editor-status')).toHaveTextContent(
+				'Ln 2, Col 2',
+			);
+		});
+		expect(screen.getByTestId('markdown-editor-char-count')).toHaveTextContent(
+			'7 chars',
+		);
+	});
+
+	it('flags a body over the character cap', async () => {
+		render(<Harness initialValue="123456" maxLength={5} />);
+
+		await waitFor(() => {
+			expect(screen.getByTestId('markdown-editor-char-count')).toHaveTextContent(
+				'6 / 5 chars',
+			);
+		});
+	});
+
+	it('applies a toolbar command to the selection', async () => {
+		render(<Harness initialValue="a word b" />);
+
+		select(2, 6);
+		await userEvent.click(screen.getByTestId('markdown-command-bold'));
+
+		await waitFor(() => {
+			expect(documentText()).toBe('a **word** b');
+		});
+	});
+
+	it('inserts a variable token at the caret', async () => {
+		render(<Harness initialValue="env: " />);
+
+		select(5, 5);
+		await userEvent.click(screen.getByTestId('markdown-insert-variable'));
+
+		// The row shows the name and kind badge.
+		const row = await screen.findByTestId('markdown-variable-environment');
+		expect(row).toHaveTextContent('$environment');
+		expect(row).toHaveTextContent('QUERY');
+
+		// fireEvent: userEvent's pointer-down path walks DOM selection APIs the
+		// CodeMirror mocks stub out.
+		fireEvent.click(row);
+
+		await waitFor(() => {
+			expect(documentText()).toBe('env: $environment');
+		});
+	});
+
+	it('colours Markdown syntax and variable tokens in the source', async () => {
+		render(<Harness initialValue={'## Runbook\nowner {{team}}'} />);
+
+		await waitFor(() => {
+			expect(document.querySelector('.cm-md-heading')).toBeInTheDocument();
+		});
+		expect(document.querySelector('.cm-md-variable')).toHaveTextContent(
+			'{{team}}',
+		);
+	});
+
+	describe('uncontrolled document', () => {
+		const type = (at: number, text: string): void => {
+			act(() => {
+				getView().dispatch({
+					changes: { from: at, insert: text },
+					selection: { anchor: at + text.length },
+				});
+			});
+		};
+
+		const focusEditor = (): void => {
+			act(() => {
+				getView().focus();
+			});
+		};
+
+		it('keeps the document and caret while the caller lags behind the typing', () => {
+			render(<LaggingHarness />);
+			focusEditor();
+
+			type(0, 'a');
+			type(1, 'b');
+			type(2, 'c');
+
+			expect(documentText()).toBe('abc');
+			expect(getView().state.selection.main.head).toBe(3);
+		});
+
+		it('reports every keystroke to the caller', () => {
+			const onChange = jest.fn();
+			render(<MarkdownEditor value="ab" onChange={onChange} />);
+
+			type(2, 'c');
+
+			expect(onChange).toHaveBeenLastCalledWith('abc');
+		});
+
+		it('does not report the seed back as a change', () => {
+			const onChange = jest.fn();
+			render(<MarkdownEditor value="seeded" onChange={onChange} />);
+
+			expect(documentText()).toBe('seeded');
+			expect(onChange).not.toHaveBeenCalled();
+		});
+
+		it('applies an external replacement while the editor is unfocused', async () => {
+			render(<ExternalHarness />);
+
+			await userEvent.click(screen.getByRole('button', { name: 'push' }));
+
+			expect(documentText()).toBe('after');
+		});
+
+		it('ignores a replacement that arrives while the author is still typing', () => {
+			render(<ExternalHarness />);
+			focusEditor();
+
+			// fireEvent: a real click would blur the editor first. This covers an update
+			// arriving on its own, while the author is still in the document.
+			fireEvent.click(screen.getByRole('button', { name: 'push' }));
+
+			expect(documentText()).toBe('before');
+		});
+
+		it('counts characters from the document, not from the lagging value', async () => {
+			render(<MarkdownEditor value="ab" onChange={jest.fn()} />);
+
+			type(2, 'cde');
+
+			await waitFor(() => {
+				expect(screen.getByTestId('markdown-editor-char-count')).toHaveTextContent(
+					'5 chars',
+				);
+			});
+		});
+	});
+
+	it('offers both list kinds in the toolbar', () => {
+		render(<Harness />);
+
+		expect(
+			screen.getByTestId('markdown-command-bulleted-list'),
+		).toBeInTheDocument();
+		expect(
+			screen.getByTestId('markdown-command-numbered-list'),
+		).toBeInTheDocument();
+	});
+
+	it('disables authoring affordances when read-only', () => {
+		render(
+			<MarkdownEditor
+				value="body"
+				onChange={jest.fn()}
+				variables={VARIABLES}
+				readOnly
+			/>,
+		);
+
+		expect(screen.getByTestId('markdown-command-bold')).toBeDisabled();
+		expect(screen.getByTestId('markdown-insert-variable')).toBeDisabled();
+	});
+
+	it('hides the insert-variable control when none are available', () => {
+		render(<Harness variables={[]} />);
+
+		expect(
+			screen.queryByTestId('markdown-insert-variable'),
+		).not.toBeInTheDocument();
+	});
+});

frontend/src/components/MarkdownEditor/__tests__/markdownCommands.test.ts

@@ -0,0 +1,258 @@
+import { insertText, MARKDOWN_COMMANDS } from '../markdownCommands';
+import type { EditorSnapshot, EditorTransform } from '../types';
+
+const commandById = (id: string): EditorTransform => {
+	const command = MARKDOWN_COMMANDS.find((entry) => entry.id === id);
+	if (!command) {
+		throw new Error(`unknown command: ${id}`);
+	}
+	return command.run;
+};
+
+const heading = commandById('heading');
+const bold = commandById('bold');
+const italic = commandById('italic');
+const bulletedList = commandById('bulleted-list');
+const numberedList = commandById('numbered-list');
+const link = commandById('link');
+const code = commandById('code');
+const table = commandById('table');
+
+/** `|` marks a caret, `[...]` a range, so expectations read like the editor looks. */
+const snapshot = (marked: string): EditorSnapshot => {
+	if (marked.includes('|')) {
+		const caret = marked.indexOf('|');
+		return {
+			text: marked.replace('|', ''),
+			selectionStart: caret,
+			selectionEnd: caret,
+		};
+	}
+	const start = marked.indexOf('[');
+	const end = marked.indexOf(']') - 1;
+	return {
+		text: marked.replace('[', '').replace(']', ''),
+		selectionStart: start,
+		selectionEnd: end,
+	};
+};
+
+const selectionOf = (result: EditorSnapshot): string =>
+	result.text.slice(result.selectionStart, result.selectionEnd);
+
+describe('heading', () => {
+	it('prefixes the caret line and keeps the caret on the same character', () => {
+		const result = heading(snapshot('Chec|kout'));
+
+		expect(result.text).toBe('## Checkout');
+		expect(result.selectionStart).toBe(7);
+	});
+
+	it('strips the prefix when every selected line already has one', () => {
+		const result = heading({
+			text: '## one\n### two',
+			selectionStart: 0,
+			selectionEnd: 13,
+		});
+
+		expect(result.text).toBe('one\ntwo');
+	});
+
+	it('adds the prefix when only some selected lines have one', () => {
+		const result = heading({
+			text: '## one\ntwo',
+			selectionStart: 0,
+			selectionEnd: 10,
+		});
+
+		expect(result.text).toBe('## ## one\n## two');
+	});
+
+	it('does not pull in the line after a selection ending on a line break', () => {
+		const result = heading({
+			text: 'one\ntwo',
+			selectionStart: 0,
+			selectionEnd: 4,
+		});
+
+		expect(result.text).toBe('## one\ntwo');
+	});
+});
+
+describe('bulleted list', () => {
+	it('bullets every line of a multi-line selection', () => {
+		const result = bulletedList({
+			text: 'one\ntwo',
+			selectionStart: 0,
+			selectionEnd: 7,
+		});
+
+		expect(result.text).toBe('- one\n- two');
+		expect(selectionOf(result)).toBe('- one\n- two');
+	});
+
+	it('unbullets a list written with a different marker', () => {
+		const result = bulletedList({
+			text: '* one\n+ two',
+			selectionStart: 0,
+			selectionEnd: 11,
+		});
+
+		expect(result.text).toBe('one\ntwo');
+	});
+});
+
+describe('numbered list', () => {
+	it('numbers each line of the selection in order', () => {
+		const result = numberedList({
+			text: 'one\ntwo\nthree',
+			selectionStart: 0,
+			selectionEnd: 13,
+		});
+
+		expect(result.text).toBe('1. one\n2. two\n3. three');
+	});
+
+	it('unnumbers a list whose numbering is not sequential', () => {
+		const result = numberedList({
+			text: '1. one\n5. two',
+			selectionStart: 0,
+			selectionEnd: 13,
+		});
+
+		expect(result.text).toBe('one\ntwo');
+	});
+});
+
+describe('switching between list kinds', () => {
+	it('converts bullets to numbers rather than marking them twice', () => {
+		const result = numberedList({
+			text: '- one\n- two',
+			selectionStart: 0,
+			selectionEnd: 11,
+		});
+
+		expect(result.text).toBe('1. one\n2. two');
+	});
+
+	it('converts numbers to bullets', () => {
+		const result = bulletedList({
+			text: '1. one\n2. two',
+			selectionStart: 0,
+			selectionEnd: 13,
+		});
+
+		expect(result.text).toBe('- one\n- two');
+	});
+
+	it('keeps indentation so nested items stay nested', () => {
+		const result = numberedList({
+			text: 'one\n    - nested',
+			selectionStart: 0,
+			selectionEnd: 16,
+		});
+
+		expect(result.text).toBe('1. one\n    2. nested');
+	});
+});
+
+describe('bold and italic', () => {
+	it('wraps the selection and keeps the original text selected', () => {
+		const result = bold(snapshot('a [word] b'));
+
+		expect(result.text).toBe('a **word** b');
+		expect(selectionOf(result)).toBe('word');
+	});
+
+	it('unwraps when the markers sit inside the selection', () => {
+		const result = bold({
+			text: 'a **word** b',
+			selectionStart: 2,
+			selectionEnd: 10,
+		});
+
+		expect(result.text).toBe('a word b');
+		expect(selectionOf(result)).toBe('word');
+	});
+
+	it('unwraps when the markers sit just outside the selection', () => {
+		const result = bold({
+			text: 'a **word** b',
+			selectionStart: 4,
+			selectionEnd: 8,
+		});
+
+		expect(result.text).toBe('a word b');
+		expect(selectionOf(result)).toBe('word');
+	});
+
+	it('leaves the caret between the markers when nothing is selected', () => {
+		const result = italic(snapshot('a |b'));
+
+		expect(result.text).toBe('a __b');
+		expect(result.selectionStart).toBe(3);
+		expect(result.selectionEnd).toBe(3);
+	});
+
+	it('does not mistake a leading document boundary for a marker', () => {
+		const result = bold(snapshot('[word] tail'));
+
+		expect(result.text).toBe('**word** tail');
+	});
+});
+
+describe('link', () => {
+	it('selects the url when the label came from the selection', () => {
+		const result = link(snapshot('see [docs] now'));
+
+		expect(result.text).toBe('see [docs](https://) now');
+		expect(selectionOf(result)).toBe('https://');
+	});
+
+	it('selects the label placeholder when nothing was selected', () => {
+		const result = link(snapshot('see |'));
+
+		expect(result.text).toBe('see [text](https://)');
+		expect(selectionOf(result)).toBe('text');
+	});
+});
+
+describe('code', () => {
+	it('uses backticks for a single-line selection', () => {
+		const result = code(snapshot('run [npm] here'));
+
+		expect(result.text).toBe('run `npm` here');
+	});
+
+	it('fences a multi-line selection and selects its content', () => {
+		const result = code({
+			text: 'one\ntwo',
+			selectionStart: 0,
+			selectionEnd: 7,
+		});
+
+		expect(result.text).toBe('```\none\ntwo\n```');
+		expect(selectionOf(result)).toBe('one\ntwo');
+	});
+});
+
+describe('table', () => {
+	it('starts the skeleton on its own line and selects the first header cell', () => {
+		const result = table(snapshot('intro|'));
+
+		expect(result.text).toBe(
+			'intro\n| Column | Column |\n| --- | --- |\n|  |  |',
+		);
+		expect(selectionOf(result)).toBe('Column');
+	});
+});
+
+describe('insertText', () => {
+	it('replaces the selection and leaves the caret after the insertion', () => {
+		const result = insertText(snapshot('env is [old]'), '{{env}}');
+
+		expect(result.text).toBe('env is {{env}}');
+		expect(result.selectionStart).toBe(14);
+		expect(result.selectionEnd).toBe(14);
+	});
+});

frontend/src/components/MarkdownEditor/constants.ts

@@ -0,0 +1,24 @@
+// The body is persisted inline in the dashboard JSON, so its length is capped.
+export const MARKDOWN_MAX_LENGTH = 16000;
+
+/** The canonical syntax; the renderer resolves the other three too. */
+export const formatVariableToken = (name: string): string => `$${name}`;
+
+export const MARKDOWN_HELP_ITEMS: { syntax: string; label: string }[] = [
+	// First: consecutive lines joining into one paragraph is the CommonMark rule
+	// authors trip over before any of the formatting syntax.
+	{ syntax: 'blank line', label: 'New paragraph' },
+	{ syntax: '2 spaces + ⏎', label: 'Line break' },
+	{ syntax: '# Heading', label: 'Heading (1–6 #)' },
+	{ syntax: '**bold**', label: 'Bold' },
+	{ syntax: '_italic_', label: 'Italic' },
+	{ syntax: '- item', label: 'Bulleted list' },
+	{ syntax: '1. item', label: 'Numbered list' },
+	{ syntax: '- [ ] task', label: 'Task list' },
+	{ syntax: '[label](url)', label: 'Link' },
+	{ syntax: '![alt](url)', label: 'Image' },
+	{ syntax: '`code`', label: 'Inline code' },
+	{ syntax: '```lang', label: 'Code block' },
+	{ syntax: '> quote', label: 'Blockquote' },
+	{ syntax: '| a | b |', label: 'Table' },
+];

frontend/src/components/MarkdownEditor/editorDocument.ts

@@ -0,0 +1,69 @@
+import { EditorView } from '@uiw/react-codemirror';
+
+import type { EditorSnapshot, EditorTransform } from './types';
+
+// Narrows a whole-document replacement to the range that changed, so a toolbar
+// action doesn't invalidate the document's decorations or scroll position.
+function toChangeSpec(
+	previous: string,
+	next: string,
+): { from: number; to: number; insert: string } | null {
+	if (previous === next) {
+		return null;
+	}
+
+	const shorter = Math.min(previous.length, next.length);
+	let start = 0;
+	while (start < shorter && previous[start] === next[start]) {
+		start += 1;
+	}
+
+	let previousEnd = previous.length;
+	let nextEnd = next.length;
+	while (
+		previousEnd > start &&
+		nextEnd > start &&
+		previous[previousEnd - 1] === next[nextEnd - 1]
+	) {
+		previousEnd -= 1;
+		nextEnd -= 1;
+	}
+
+	return { from: start, to: previousEnd, insert: next.slice(start, nextEnd) };
+}
+
+export function readSnapshot(view: EditorView): EditorSnapshot {
+	const range = view.state.selection.main;
+	return {
+		text: view.state.doc.toString(),
+		selectionStart: range.from,
+		selectionEnd: range.to,
+	};
+}
+
+/** Returns whether the transform ran, as CodeMirror's keymap contract expects. */
+export function applyTransform(
+	view: EditorView,
+	transform: EditorTransform,
+): boolean {
+	if (view.state.readOnly) {
+		return false;
+	}
+
+	const next = transform(readSnapshot(view));
+	const changes = toChangeSpec(view.state.doc.toString(), next.text);
+	view.dispatch({
+		...(changes ? { changes } : {}),
+		selection: { anchor: next.selectionStart, head: next.selectionEnd },
+		scrollIntoView: true,
+	});
+	view.focus();
+	return true;
+}
+
+/** Replaces the whole document, for seeding and external replacements. */
+export function replaceDocument(view: EditorView, next: string): void {
+	view.dispatch({
+		changes: { from: 0, to: view.state.doc.length, insert: next },
+	});
+}

frontend/src/components/MarkdownEditor/markdownCommands.ts

@@ -0,0 +1,269 @@
+import type { EditorCommand, EditorSnapshot, EditorTransform } from './types';
+
+const BOLD_MARKER = '**';
+const ITALIC_MARKER = '_';
+const INLINE_CODE_MARKER = '`';
+const CODE_FENCE = '```';
+const HEADING_PREFIX = '## ';
+const BULLET_MARKER = '- ';
+
+const HEADING_PATTERN = /^ {0,3}#{1,6} /;
+const BULLET_LIST_PATTERN = /^[ \t]*[-*+] /;
+const ORDERED_LIST_PATTERN = /^[ \t]*\d+\. /;
+// Either kind of marker, matched after the indent has been split off.
+const LIST_MARKER_PATTERN = /^(?:[-*+]|\d+\.) /;
+const INDENT_PATTERN = /^[ \t]*/;
+
+const LINK_LABEL_PLACEHOLDER = 'text';
+const LINK_URL_PLACEHOLDER = 'https://';
+const TABLE_CELL_PLACEHOLDER = 'Column';
+const TABLE_SNIPPET = [
+	`| ${TABLE_CELL_PLACEHOLDER} | ${TABLE_CELL_PLACEHOLDER} |`,
+	'| --- | --- |',
+	'|  |  |',
+].join('\n');
+
+interface LineRange {
+	start: number;
+	end: number;
+}
+
+// A selection ending exactly on a line break stops there rather than pulling in
+// the next line, so "select the line, hit list" doesn't bullet the line below too.
+function expandToLines(text: string, from: number, to: number): LineRange {
+	const end = to > from && text[to - 1] === '\n' ? to - 1 : to;
+	const breakBefore = from === 0 ? -1 : text.lastIndexOf('\n', from - 1);
+	const breakAfter = text.indexOf('\n', end);
+	return {
+		start: breakBefore + 1,
+		end: breakAfter === -1 ? text.length : breakAfter,
+	};
+}
+
+/** Pads `block` so it starts and ends on its own line. */
+function replaceWithBlock(
+	snapshot: EditorSnapshot,
+	block: string,
+): { text: string; blockStart: number } {
+	const { text, selectionStart, selectionEnd } = snapshot;
+	const before = text.slice(0, selectionStart);
+	const after = text.slice(selectionEnd);
+	const lead = before === '' || before.endsWith('\n') ? '' : '\n';
+	const trail = after === '' || after.startsWith('\n') ? '' : '\n';
+	return {
+		text: before + lead + block + trail + after,
+		blockStart: before.length + lead.length,
+	};
+}
+
+/** Rewrites every line the selection touches. */
+function replaceLines(
+	snapshot: EditorSnapshot,
+	mapLines: (lines: string[]) => string[],
+): EditorSnapshot {
+	const { text, selectionStart, selectionEnd } = snapshot;
+	const { start, end } = expandToLines(text, selectionStart, selectionEnd);
+	const lines = text.slice(start, end).split('\n');
+	const nextLines = mapLines(lines);
+	const block = nextLines.join('\n');
+	const nextText = text.slice(0, start) + block + text.slice(end);
+
+	if (selectionStart !== selectionEnd) {
+		return {
+			text: nextText,
+			selectionStart: start,
+			selectionEnd: start + block.length,
+		};
+	}
+
+	// Caret-only: the range covers one line, so shift by that line's delta.
+	const shifted = selectionStart + nextLines[0].length - lines[0].length;
+	const caret = Math.min(Math.max(shifted, start), start + nextLines[0].length);
+	return { text: nextText, selectionStart: caret, selectionEnd: caret };
+}
+
+/** Strips `prefix` when every selected line already matches `pattern`, else adds it. */
+function toggleLinePrefix(prefix: string, pattern: RegExp): EditorTransform {
+	return (snapshot): EditorSnapshot =>
+		replaceLines(snapshot, (lines) => {
+			const isApplied = lines.every((line) => pattern.test(line));
+			return lines.map((line) =>
+				isApplied ? line.replace(pattern, '') : `${prefix}${line}`,
+			);
+		});
+}
+
+/**
+ * Toggles this kind of list marker. A line carrying the *other* kind is converted
+ * rather than marked twice, and indentation is preserved so nesting survives.
+ * `markerAt` takes the line's position, which is what lets an ordered list number.
+ */
+function toggleList(
+	pattern: RegExp,
+	markerAt: (index: number) => string,
+): EditorTransform {
+	return (snapshot): EditorSnapshot =>
+		replaceLines(snapshot, (lines) => {
+			const isApplied = lines.every((line) => pattern.test(line));
+			return lines.map((line, index) => {
+				const indent = INDENT_PATTERN.exec(line)?.[0] ?? '';
+				const body = line.slice(indent.length).replace(LIST_MARKER_PATTERN, '');
+				return isApplied
+					? `${indent}${body}`
+					: `${indent}${markerAt(index)}${body}`;
+			});
+		});
+}
+
+/**
+ * Unwraps when the markers are already there, whether they sit inside the selection
+ * (`**bold**` selected whole) or just outside it (only `bold` selected).
+ */
+function toggleWrap(marker: string): EditorTransform {
+	return ({ text, selectionStart, selectionEnd }): EditorSnapshot => {
+		const selected = text.slice(selectionStart, selectionEnd);
+		const width = marker.length;
+
+		if (
+			selected.length >= width * 2 &&
+			selected.startsWith(marker) &&
+			selected.endsWith(marker)
+		) {
+			const inner = selected.slice(width, -width);
+			return {
+				text: text.slice(0, selectionStart) + inner + text.slice(selectionEnd),
+				selectionStart,
+				selectionEnd: selectionStart + inner.length,
+			};
+		}
+
+		if (
+			selectionStart >= width &&
+			text.slice(selectionStart - width, selectionStart) === marker &&
+			text.slice(selectionEnd, selectionEnd + width) === marker
+		) {
+			return {
+				text:
+					text.slice(0, selectionStart - width) +
+					selected +
+					text.slice(selectionEnd + width),
+				selectionStart: selectionStart - width,
+				selectionEnd: selectionStart - width + selected.length,
+			};
+		}
+
+		return {
+			text:
+				text.slice(0, selectionStart) +
+				marker +
+				selected +
+				marker +
+				text.slice(selectionEnd),
+			selectionStart: selectionStart + width,
+			selectionEnd: selectionStart + width + selected.length,
+		};
+	};
+}
+
+/** Lands the selection on whichever half is still a placeholder. */
+const insertLink: EditorTransform = ({
+	text,
+	selectionStart,
+	selectionEnd,
+}): EditorSnapshot => {
+	const selected = text.slice(selectionStart, selectionEnd);
+	const label = selected || LINK_LABEL_PLACEHOLDER;
+	const snippet = `[${label}](${LINK_URL_PLACEHOLDER})`;
+	const nextText =
+		text.slice(0, selectionStart) + snippet + text.slice(selectionEnd);
+	// `[` + label + `](` is label.length + 3 characters.
+	const target = selected
+		? {
+				from: selectionStart + label.length + 3,
+				length: LINK_URL_PLACEHOLDER.length,
+			}
+		: { from: selectionStart + 1, length: label.length };
+
+	return {
+		text: nextText,
+		selectionStart: target.from,
+		selectionEnd: target.from + target.length,
+	};
+};
+
+/** Backticks for a single-line selection, a fence for a multi-line one. */
+const insertCode: EditorTransform = (snapshot): EditorSnapshot => {
+	const { text, selectionStart, selectionEnd } = snapshot;
+	const selected = text.slice(selectionStart, selectionEnd);
+	if (!selected.includes('\n')) {
+		return toggleWrap(INLINE_CODE_MARKER)(snapshot);
+	}
+
+	const { text: nextText, blockStart } = replaceWithBlock(
+		snapshot,
+		`${CODE_FENCE}\n${selected}\n${CODE_FENCE}`,
+	);
+	const contentStart = blockStart + CODE_FENCE.length + 1;
+	return {
+		text: nextText,
+		selectionStart: contentStart,
+		selectionEnd: contentStart + selected.length,
+	};
+};
+
+/** Selects the first header cell, for immediate typing. */
+const insertTable: EditorTransform = (snapshot): EditorSnapshot => {
+	const { text, blockStart } = replaceWithBlock(snapshot, TABLE_SNIPPET);
+	const firstCell = blockStart + TABLE_SNIPPET.indexOf(TABLE_CELL_PLACEHOLDER);
+	return {
+		text,
+		selectionStart: firstCell,
+		selectionEnd: firstCell + TABLE_CELL_PLACEHOLDER.length,
+	};
+};
+
+/** Replaces the selection and leaves the caret after the insertion. */
+export function insertText(
+	snapshot: EditorSnapshot,
+	value: string,
+): EditorSnapshot {
+	const { text, selectionStart, selectionEnd } = snapshot;
+	const caret = selectionStart + value.length;
+	return {
+		text: text.slice(0, selectionStart) + value + text.slice(selectionEnd),
+		selectionStart: caret,
+		selectionEnd: caret,
+	};
+}
+
+/** Display order. A new action is an entry here plus an icon in `EditorToolbar`. */
+export const MARKDOWN_COMMANDS: EditorCommand[] = [
+	{
+		id: 'heading',
+		label: 'Heading',
+		run: toggleLinePrefix(HEADING_PREFIX, HEADING_PATTERN),
+	},
+	{
+		id: 'bold',
+		label: 'Bold',
+		run: toggleWrap(BOLD_MARKER),
+	},
+	{
+		id: 'italic',
+		label: 'Italic',
+		run: toggleWrap(ITALIC_MARKER),
+	},
+	{
+		id: 'bulleted-list',
+		label: 'Bulleted list',
+		run: toggleList(BULLET_LIST_PATTERN, () => BULLET_MARKER),
+	},
+	{
+		id: 'numbered-list',
+		label: 'Numbered list',
+		run: toggleList(ORDERED_LIST_PATTERN, (index) => `${index + 1}. `),
+	},
+	{ id: 'link', label: 'Link', run: insertLink },
+	{ id: 'code', label: 'Code', run: insertCode },
+	{ id: 'table', label: 'Table', run: insertTable },
+];

frontend/src/components/MarkdownEditor/markdownHighlight.ts

@@ -0,0 +1,149 @@
+import type { Extension, Line, Range } from '@codemirror/state';
+import {
+	Decoration,
+	type DecorationSet,
+	EditorView,
+	ViewPlugin,
+	type ViewUpdate,
+} from '@codemirror/view';
+
+const FENCE_PATTERN = /^ {0,3}(```|~~~)/;
+const HEADING_PATTERN = /^ {0,3}#{1,6} /;
+const QUOTE_PATTERN = /^ {0,3}> ?/;
+const LIST_MARKER_PATTERN = /^ {0,3}([-*+]|\d+\.) /;
+
+/**
+ * Convention: capture group 1, when present, is a left guard the token excludes —
+ * the token runs from the end of that group to the end of the match. Lookbehind is
+ * avoided for Safari compatibility, so guards are captured rather than asserted.
+ */
+const INLINE_PATTERNS: { pattern: RegExp; className: string }[] = [
+	{ pattern: /`[^`\n]+`/g, className: 'cm-md-code' },
+	{ pattern: /\*\*[^*\n]+\*\*/g, className: 'cm-md-strong' },
+	{ pattern: /(^|[^\w*_`])_[^_\n]+_(?![\w_])/g, className: 'cm-md-emphasis' },
+	{ pattern: /!?\[[^\]\n]*\]\([^)\n]*\)/g, className: 'cm-md-link' },
+	{
+		// The four variable syntaxes a dashboard body may carry.
+		pattern:
+			/\{\{\s*\.?[\w.-]+\s*\}\}|\[\[\s*[\w.-]+\s*\]\]|\$(?!__)[A-Za-z_]\w*(?:\.\w+)*/g,
+		className: 'cm-md-variable',
+	},
+];
+
+const MARKS = {
+	heading: Decoration.mark({ class: 'cm-md-heading' }),
+	quote: Decoration.mark({ class: 'cm-md-quote' }),
+	listMarker: Decoration.mark({ class: 'cm-md-list-marker' }),
+	code: Decoration.mark({ class: 'cm-md-code' }),
+} as const;
+
+const INLINE_MARKS = INLINE_PATTERNS.map(({ pattern, className }) => ({
+	pattern,
+	mark: Decoration.mark({ class: className }),
+}));
+
+function pushInlineMarks(
+	lineText: string,
+	lineFrom: number,
+	ranges: Range<Decoration>[],
+): void {
+	INLINE_MARKS.forEach(({ pattern, mark }) => {
+		pattern.lastIndex = 0;
+		let match = pattern.exec(lineText);
+		while (match !== null) {
+			const guardLength = match[1]?.length ?? 0;
+			const from = lineFrom + match.index + guardLength;
+			const to = lineFrom + match.index + match[0].length;
+			if (to > from) {
+				ranges.push(mark.range(from, to));
+			}
+			match = pattern.exec(lineText);
+		}
+	});
+}
+
+function pushBlockMark(line: Line, ranges: Range<Decoration>[]): void {
+	if (HEADING_PATTERN.test(line.text)) {
+		ranges.push(MARKS.heading.range(line.from, line.to));
+		return;
+	}
+	if (QUOTE_PATTERN.test(line.text)) {
+		ranges.push(MARKS.quote.range(line.from, line.to));
+		return;
+	}
+	const listMarker = LIST_MARKER_PATTERN.exec(line.text);
+	if (listMarker) {
+		ranges.push(
+			MARKS.listMarker.range(line.from, line.from + listMarker[0].length),
+		);
+	}
+}
+
+// Scans the whole document rather than the viewport: fenced blocks opening above
+// the visible range would otherwise be mis-detected. Bounded by the length cap.
+function buildDecorations(view: EditorView): DecorationSet {
+	const { doc } = view.state;
+	const ranges: Range<Decoration>[] = [];
+	let isInsideFence = false;
+
+	for (let lineNumber = 1; lineNumber <= doc.lines; lineNumber += 1) {
+		const line = doc.line(lineNumber);
+		const isFenceDelimiter = FENCE_PATTERN.test(line.text);
+
+		if (isFenceDelimiter || isInsideFence) {
+			if (line.to > line.from) {
+				ranges.push(MARKS.code.range(line.from, line.to));
+			}
+			isInsideFence = isFenceDelimiter ? !isInsideFence : isInsideFence;
+		} else {
+			pushBlockMark(line, ranges);
+			pushInlineMarks(line.text, line.from, ranges);
+		}
+	}
+
+	return Decoration.set(ranges, true);
+}
+
+// Colours come from custom properties so the SCSS module owns light/dark.
+const syntaxTheme = EditorView.theme({
+	'.cm-md-heading': {
+		color: 'var(--md-syntax-heading)',
+		fontWeight: '600',
+	},
+	'.cm-md-quote': { color: 'var(--md-syntax-quote)', fontStyle: 'italic' },
+	'.cm-md-list-marker': { color: 'var(--md-syntax-marker)' },
+	'.cm-md-code': { color: 'var(--md-syntax-code)' },
+	'.cm-md-strong': { color: 'var(--md-syntax-strong)', fontWeight: '600' },
+	'.cm-md-emphasis': {
+		color: 'var(--md-syntax-emphasis)',
+		fontStyle: 'italic',
+	},
+	'.cm-md-link': { color: 'var(--md-syntax-link)' },
+	'.cm-md-variable': { color: 'var(--md-syntax-variable)' },
+});
+
+const highlightPlugin = ViewPlugin.fromClass(
+	class {
+		decorations: DecorationSet;
+
+		constructor(view: EditorView) {
+			this.decorations = buildDecorations(view);
+		}
+
+		update(update: ViewUpdate): void {
+			if (update.docChanged || update.viewportChanged) {
+				this.decorations = buildDecorations(update.view);
+			}
+		}
+	},
+	{ decorations: (plugin): DecorationSet => plugin.decorations },
+);
+
+/**
+ * Decorations rather than a grammar, so the editor stays on the CodeMirror packages
+ * already bundled — no `@codemirror/lang-markdown` / `@lezer` for what is only a
+ * colouring pass over a body the renderer parses for real.
+ */
+export function markdownHighlight(): Extension {
+	return [highlightPlugin, syntaxTheme];
+}

frontend/src/components/MarkdownEditor/types.ts

@@ -0,0 +1,27 @@
+/** The value every editor command reads and returns. */
+export interface EditorSnapshot {
+	text: string;
+	selectionStart: number;
+	selectionEnd: number;
+}
+
+export type EditorTransform = (snapshot: EditorSnapshot) => EditorSnapshot;
+
+export interface EditorVariable {
+	name: string;
+	/** Short tag for the variable's kind, e.g. "QUERY". */
+	badge?: string;
+}
+
+export interface EditorCommand {
+	id: string;
+	/** Accessible name and tooltip for the toolbar button. */
+	label: string;
+	run: EditorTransform;
+}
+
+/** 1-based, as the status bar reports it. */
+export interface CursorPosition {
+	line: number;
+	column: number;
+}

frontend/src/constants/panelTypes.ts

@@ -31,6 +31,8 @@ export const getComponentForPanelType = (
 		[PANEL_TYPES.BAR]: Uplot,
 		[PANEL_TYPES.PIE]: null,
 		[PANEL_TYPES.HISTOGRAM]: Uplot,
+		// Dashboards v2 renders this kind; nothing reaches the V1 chart map for it.
+		[PANEL_TYPES.TEXT]: null,
 		[PANEL_TYPES.EMPTY_WIDGET]: null,
 	};
 

frontend/src/constants/queryBuilder.ts

@@ -376,6 +376,7 @@ export enum PANEL_TYPES {
 	BAR = 'bar',
 	PIE = 'pie',
 	HISTOGRAM = 'histogram',
+	TEXT = 'text',
 	EMPTY_WIDGET = 'EMPTY_WIDGET',
 }
 

frontend/src/container/WidgetCard/Card/FullView/contants.ts

@@ -29,5 +29,6 @@ export const PANEL_TYPES_VS_FULL_VIEW_TABLE: PanelTypeAndGraphManagerVisibilityP
 		BAR: true,
 		PIE: false,
 		HISTOGRAM: false,
+		TEXT: false,
 		EMPTY_WIDGET: false,
 	};

frontend/src/container/WidgetCard/Panels/constants.ts

@@ -14,6 +14,8 @@ export const PanelTypeVsPanelWrapper = {
 	[PANEL_TYPES.LIST]: ListPanelWrapper,
 	[PANEL_TYPES.VALUE]: ValuePanelWrapper,
 	[PANEL_TYPES.TRACE]: null,
+	// Dashboards v2 renders this kind; the V1 wrapper map is never asked for it.
+	[PANEL_TYPES.TEXT]: null,
 	[PANEL_TYPES.EMPTY_WIDGET]: null,
 	[PANEL_TYPES.PIE]: PiePanelWrapper,
 	[PANEL_TYPES.BAR]: BarPanel,

frontend/src/lib/uPlotV2/components/Legend/Legend.module.scss

@@ -1,270 +0,0 @@
-@use '../../../../styles/scrollbar' as *;
-
-.container {
-	position: relative;
-	display: flex;
-	flex-direction: column;
-	height: 100%;
-	width: 100%;
-	// Let the flex children shrink below their content height so the series list
-	// scrolls within the capped legend height instead of overflowing the wrapper
-	// (the default min-height:auto would block the shrink).
-	min-height: 0;
-}
-
-/* Toolbar */
-
-.toolbar {
-	display: flex;
-	align-items: center;
-	flex-wrap: wrap;
-	gap: var(--spacing-5, 10px);
-	padding: 0 var(--spacing-4) var(--spacing-5, 10px);
-	flex-shrink: 0;
-
-	> * {
-		flex: 0 1 auto;
-	}
-}
-
-.status {
-	// Wraps rather than losing the count at its end.
-	min-width: 0;
-	font-family: var(--font-mono);
-	font-size: var(--periscope-font-size-small);
-	color: var(--l3-foreground);
-}
-
-.searchContainer {
-	flex-shrink: 0;
-	width: 100%;
-	padding-right: var(--spacing-4);
-	padding-bottom: var(--spacing-5, 10px);
-}
-
-.searchInput {
-	font-size: var(--font-size-xs);
-}
-
-.searchIcon {
-	color: var(--l3-foreground);
-}
-
-/* Series list */
-
-.scroller {
-	// flex:1 + min-height:0 pins the scroller to the space left after the
-	// toolbar instead of growing to fit every row.
-	flex: 1;
-	min-height: 0;
-	height: 100%;
-	width: 100%;
-	padding-right: var(--spacing-2);
-	overflow-x: hidden;
-	overscroll-behavior: contain;
-
-	@include custom-scrollbar;
-}
-
-.gridItem {
-	// Or the item keeps its content width and the label never ellipsizes.
-	min-width: 0;
-	max-width: 100%;
-}
-
-.gridList {
-	min-width: 0;
-	display: grid;
-	grid-auto-flow: row;
-	// min() keeps the column inside a narrow panel, where a wider one would push
-	// the row's actions out of the clipped area.
-	grid-template-columns: repeat(
-		auto-fill,
-		minmax(min(var(--legend-item-width, 240px), 100%), 1fr)
-	);
-	gap: var(--spacing-1) var(--spacing-4);
-}
-
-.container.isRight .gridList {
-	grid-template-columns: 1fr;
-}
-
-.emptyState {
-	padding: var(--spacing-16) 0;
-	font-size: var(--font-size-xs);
-	color: var(--l3-foreground);
-	text-align: center;
-}
-
-/* Row */
-
-.row {
-	// Width of the revealed actions, given up by the label on hover only.
-	--legend-actions-reserve: 78px;
-
-	position: relative;
-	display: flex;
-	align-items: center;
-	gap: var(--spacing-4);
-	height: 28px;
-	padding: 0 var(--spacing-3) 0 var(--spacing-4);
-	box-sizing: border-box;
-	width: 100%;
-	max-width: 100%;
-	min-width: 0;
-	border-radius: var(--radius);
-	cursor: pointer;
-	transition: background 160ms linear;
-
-	&:hover,
-	&:focus-visible {
-		background: var(--l3-background);
-	}
-}
-
-.isFocused {
-	background: var(--l3-background);
-}
-
-.marker {
-	// Reads as a checkbox without being one: filled when shown, hollow when
-	// hidden, deliberately not a check glyph.
-	flex: 0 0 auto;
-	box-sizing: border-box;
-	position: relative;
-	// Above the actions, so a narrow row's chip never covers the series colour.
-	z-index: 4;
-	width: 12px;
-	height: 12px;
-	padding: 0;
-	appearance: none;
-	border-width: 1.5px;
-	border-style: solid;
-	border-radius: var(--radius);
-	cursor: pointer;
-	transition:
-		transform 200ms ease,
-		box-shadow 200ms ease,
-		background-color 160ms linear,
-		opacity 160ms linear;
-
-	&:hover {
-		transform: scale(1.2);
-		box-shadow: 0 0 0 2px
-			color-mix(in srgb, var(--l1-foreground) 30%, transparent);
-	}
-
-	&:active {
-		transform: scale(0.9);
-	}
-
-	&:disabled {
-		cursor: default;
-	}
-
-	&:disabled:hover {
-		transform: none;
-		box-shadow: none;
-	}
-}
-
-// Series names run long and have no spaces to break on, so they need both a
-// cap and a break rule or the tooltip becomes one panel-wide line.
-.rowTooltip {
-	max-width: 420px;
-	white-space: normal;
-	overflow-wrap: anywhere;
-}
-
-.label {
-	flex: 1 1 auto;
-	box-sizing: border-box;
-	width: 100%;
-	min-width: 0;
-	overflow: hidden;
-	text-overflow: ellipsis;
-	white-space: nowrap;
-	font-family: var(--font-mono);
-	font-size: var(--font-size-xs);
-	letter-spacing: -0.01em;
-	color: var(--l2-foreground);
-	user-select: none;
-}
-
-.isHidden .marker {
-	opacity: 0.45;
-}
-
-.isHidden .label {
-	color: var(--l3-foreground);
-	text-decoration: line-through;
-	text-decoration-thickness: 1px;
-}
-
-/* Row actions */
-
-.actions {
-	position: absolute;
-	top: var(--spacing-2);
-	right: var(--spacing-3);
-	z-index: 3;
-	display: flex;
-	align-items: center;
-	gap: var(--spacing-2);
-	padding-left: var(--spacing-5, 10px);
-	// Sits on the row's hover background and masks the label's tail behind it.
-	background: var(--l3-background);
-	box-shadow: -8px 0 8px var(--l3-background);
-	opacity: 0;
-	transform: translateX(10px);
-	pointer-events: none;
-	transition:
-		opacity 180ms cubic-bezier(0.08, 0.52, 0.52, 1),
-		transform 180ms cubic-bezier(0.08, 0.52, 0.52, 1);
-}
-
-// :focus-visible, not :focus-within — the latter also matches the click that
-// just toggled the series, leaving the actions stuck open.
-.row:hover .actions,
-.row:focus-visible .actions,
-.row:has(:focus-visible) .actions {
-	opacity: 1;
-	transform: translateX(0);
-	pointer-events: auto;
-}
-
-// The cap spares rows sized to their actions, not their label.
-.row:hover .label,
-.row:focus-visible .label,
-.row:has(:focus-visible) .label {
-	padding-right: min(var(--legend-actions-reserve), 50%);
-}
-
-.actionTrigger {
-	display: inline-flex;
-}
-
-.actionButton {
-	--button-height: 20px;
-	--button-width: 20px;
-	--button-padding: 0;
-	--button-variant-ghost-color: var(--l3-foreground);
-	--button-variant-ghost-hover-color: var(--l1-foreground);
-
-	flex-shrink: 0;
-}
-
-.actionButton.scopeButton {
-	--button-width: auto;
-	--button-padding: 0 var(--spacing-4);
-	--button-font-size: var(--font-size-xs);
-	--button-border-radius: calc(var(--radius) * 4);
-	--button-base-border-width: 1px;
-	// --l2-border is the actions bar's own background: one step up reads.
-	--button-base-border-color: var(--l3-border);
-
-	border-style: solid;
-}
-.actionButton.scopeButton:hover {
-	border-color: var(--l2-border);
-}

frontend/src/lib/uPlotV2/components/Legend/Legend.styles.scss

@@ -0,0 +1,204 @@
+@use '../../../../styles/scrollbar' as *;
+
+.legend-search-container {
+	flex-shrink: 0;
+	width: 100%;
+	padding-right: 8px;
+
+	.legend-search-input {
+		font-size: 12px;
+	}
+}
+
+.legend-container {
+	display: flex;
+	flex-direction: column;
+	align-items: center;
+	gap: 12px;
+	height: 100%;
+	width: 100%;
+	// Allow the flex children to shrink below their content height so the
+	// virtualized grid scrolls within the capped legend height instead of
+	// overflowing the wrapper (default min-height:auto would block the shrink).
+	min-height: 0;
+
+	&:has(.legend-item-focused) .legend-item {
+		opacity: 0.3;
+	}
+
+	&:has(.legend-item-focused) .legend-item.legend-item-focused {
+		opacity: 1;
+	}
+
+	.legend-empty-state {
+		font-size: 12px;
+		color: var(--l2-foreground);
+		text-align: center;
+		padding: 12px;
+		padding: 2rem 0;
+	}
+
+	.legend-virtuoso-container {
+		// flex:1 + min-height:0 pins the scroller to the space left after the
+		// search box (RIGHT legend) and lets it scroll instead of growing to fit
+		// every row — without this the grid overflows a BOTTOM legend's fixed height.
+		flex: 1;
+		min-height: 0;
+		height: 100%;
+		width: 100%;
+
+		.virtuoso-grid-list {
+			min-width: 0;
+			display: grid;
+			grid-auto-flow: row;
+			grid-template-columns: repeat(
+				auto-fill,
+				minmax(var(--legend-average-width, 240px), 1fr)
+			);
+			column-gap: 12px;
+		}
+
+		.virtuoso-grid-item {
+			min-width: 0;
+		}
+
+		&.legend-virtuoso-container-right {
+			.virtuoso-grid-list {
+				grid-template-columns: 1fr;
+			}
+		}
+
+		&.legend-virtuoso-container-single-row {
+			.virtuoso-grid-list {
+				grid-template-columns: repeat(
+					auto-fit,
+					minmax(var(--legend-average-width, 240px), max-content)
+				);
+				justify-content: center;
+			}
+		}
+
+		@include custom-scrollbar;
+	}
+}
+
+.legend-row {
+	padding: 4px 0;
+	display: flex;
+	align-items: center;
+	flex-wrap: wrap;
+	gap: 8px 16px;
+
+	&.legend-single-row {
+		justify-content: center;
+	}
+
+	&.legend-row-right {
+		flex-direction: column;
+		align-items: flex-start;
+		justify-content: flex-start;
+	}
+	&.legend-row-bottom {
+		flex-direction: row;
+	}
+}
+
+.legend-item {
+	display: flex;
+	align-items: center;
+	gap: 6px;
+	padding: 4px 8px;
+	// Include padding within the width so a full-width row (legend-item-right) fits its
+	// column instead of overflowing by the 16px horizontal padding — there is no global
+	// border-box reset, so the default content-box would make it overflow.
+	box-sizing: border-box;
+	max-width: 100%;
+	overflow: hidden;
+	border-radius: 4px;
+	cursor: pointer;
+
+	&.legend-item-right {
+		width: 100%;
+	}
+
+	&.legend-item-off {
+		opacity: 0.3;
+		text-decoration: line-through;
+		text-decoration-thickness: 1px;
+	}
+
+	&.legend-item-focused {
+		opacity: 1;
+	}
+
+	.legend-item-label-trigger {
+		display: flex;
+		align-items: center;
+		gap: 6px;
+		flex: 1;
+		min-width: 0;
+		cursor: pointer;
+	}
+
+	.legend-marker {
+		border-width: 2px;
+		border-style: solid;
+		border-radius: 50%;
+		min-width: 11px;
+		min-height: 11px;
+		width: 11px;
+		height: 11px;
+		flex-shrink: 0;
+		cursor: pointer;
+		transition: transform 0.2s ease;
+		position: relative;
+
+		&:hover {
+			transform: scale(1.2);
+			box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
+		}
+
+		&:active {
+			transform: scale(0.9);
+		}
+	}
+
+	.legend-label {
+		flex: 1;
+		font-size: 12px;
+		overflow: hidden;
+		text-overflow: ellipsis;
+		white-space: nowrap;
+		min-width: 0;
+		user-select: none;
+	}
+
+	.legend-copy-button {
+		// Always laid out (space reserved) but transparent, so revealing it on
+		// hover fades the icon in without reflowing the row / shifting the label.
+		// Shrink the shared icon Button (defaults to a 2rem square) to the
+		// compact legend row via its size tokens.
+		--button-height: auto;
+		--button-width: auto;
+		--button-padding: 2px;
+
+		opacity: 0;
+		flex-shrink: 0;
+		color: var(--l2-foreground);
+		border-radius: 4px;
+		transition:
+			opacity 0.15s ease,
+			color 0.15s ease;
+
+		&:hover {
+			color: var(--l1-foreground);
+		}
+	}
+
+	&:hover {
+		background: var(--l3-background);
+		.legend-copy-button {
+			opacity: 1;
+		}
+	}
+}

frontend/src/lib/uPlotV2/components/Legend/Legend.tsx

@@ -1,136 +1,139 @@
 import { useCallback, useMemo, useRef, useState } from 'react';
 import { VirtuosoGrid } from 'react-virtuoso';
+import { Input } from 'antd';
+import { TooltipSimple } from '@signozhq/ui/tooltip';
 import cx from 'classnames';
+import { useResizeObserver } from 'hooks/useDimensions';
 import { LegendItem } from 'lib/uPlotV2/config/types';
+import CopyButton from 'periscope/components/CopyButton/CopyButton';
 
 import { LegendPosition, LegendProps } from '../types';
 
-import { LEGEND_ITEM_EXTRA_WIDTH, MAX_LEGEND_WIDTH } from './constants';
-import LegendRow from './LegendRow';
-import LegendToolbar from './LegendToolbar';
-import { filterLegendItems, getShownSeriesState } from './utils';
+import './Legend.styles.scss';
 
-import styles from './Legend.module.scss';
+export const MAX_LEGEND_WIDTH = 240;
 
 /**
- * Presentational legend, source-agnostic: the uPlot charts feed it via
- * UPlotLegend, Pie feeds it directly. Every state change is delegated.
+ * Presentational legend. Renders the supplied `items` (markers + labels, an
+ * optional copy button, and a search box for the RIGHT position) and delegates
+ * all interaction to the container handlers. Source-agnostic — the uPlot
+ * charts feed it via UPlotLegend; Pie feeds it directly.
  */
 export default function Legend({
 	items,
 	position,
 	averageLegendWidth = MAX_LEGEND_WIDTH,
 	focusedSeriesIndex,
-	onToggleSeries,
-	onShowOnlySeries,
-	onShowAllSeries,
-	onHoverSeries,
+	onClick,
+	onMouseMove,
+	onMouseLeave,
 	showCopy = true,
 }: LegendProps): JSX.Element {
 	const legendContainerRef = useRef<HTMLDivElement | null>(null);
-	const [filterQuery, setFilterQuery] = useState('');
+	const [legendSearchQuery, setLegendSearchQuery] = useState('');
 
-	const itemWidth = averageLegendWidth + LEGEND_ITEM_EXTRA_WIDTH;
-	const isRightPosition = position === LegendPosition.RIGHT;
+	// Search is intrinsic to the right-positioned legend.
+	const searchEnabled = position === LegendPosition.RIGHT;
+	const { width: containerWidth } = useResizeObserver(legendContainerRef);
 
-	const { visibleCount, soleShownSeriesIndex } = useMemo(
-		() => getShownSeriesState(items),
-		[items],
-	);
+	const isSingleRow = useMemo(() => {
+		if (position !== LegendPosition.BOTTOM || containerWidth <= 0) {
+			return false;
+		}
+		const totalLegendWidth = items.length * (averageLegendWidth + 16);
+		const totalRows = Math.ceil(totalLegendWidth / containerWidth);
+		return totalRows <= 1;
+	}, [averageLegendWidth, items.length, position, containerWidth]);
 
-	// A bottom legend gets two rows; spending one on chrome costs more chart than
-	// the readout is worth.
-	const showToolbar = isRightPosition && items.length > 0;
-	const showFilter = showToolbar;
+	const visibleLegendItems = useMemo(() => {
+		if (!searchEnabled || !legendSearchQuery.trim()) {
+			return items;
+		}
 
-	const effectiveQuery = showFilter ? filterQuery : '';
-
-	const visibleLegendItems = useMemo(
-		() => filterLegendItems(items, effectiveQuery),
-		[items, effectiveQuery],
-	);
-
-	const isEmptyState =
-		!!effectiveQuery.trim() && visibleLegendItems.length === 0;
-
-	const isAllShown = visibleCount === items.length;
-
-	/** Everything showing -> isolate, since there is nothing to exclude yet. */
-	const handleRowClick = useCallback(
-		(seriesIndex: number): void => {
-			if (isAllShown) {
-				onShowOnlySeries(seriesIndex);
-				return;
-			}
-
-			onToggleSeries(seriesIndex);
-		},
-		[isAllShown, onShowOnlySeries, onToggleSeries],
-	);
-
-	// A row that unmounts under the pointer never fires its own mouseleave.
-	const handleMouseLeave = useCallback(
-		(): void => onHoverSeries(null),
-		[onHoverSeries],
-	);
+		const query = legendSearchQuery.trim().toLowerCase();
+		return items.filter((item) => item.label?.toLowerCase().includes(query));
+	}, [searchEnabled, legendSearchQuery, items]);
 
 	const renderLegendItem = useCallback(
-		(item: LegendItem): JSX.Element => (
-			<LegendRow
-				key={item.seriesIndex}
-				item={item}
-				isSoleShown={soleShownSeriesIndex === item.seriesIndex}
-				isAllShown={isAllShown}
-				isFocused={focusedSeriesIndex === item.seriesIndex}
-				showCopy={showCopy}
-				onRowClick={handleRowClick}
-				onToggleVisibility={onToggleSeries}
-				onShowOnly={onShowOnlySeries}
-				onShowAll={onShowAllSeries}
-				onHover={onHoverSeries}
-			/>
-		),
-		[
-			soleShownSeriesIndex,
-			isAllShown,
-			focusedSeriesIndex,
-			showCopy,
-			handleRowClick,
-			onToggleSeries,
-			onShowOnlySeries,
-			onShowAllSeries,
-			onHoverSeries,
-		],
+		(item: LegendItem): JSX.Element => {
+			// `color` is uPlot's stroke union (string | fn | gradient); only a string
+			// is a usable CSS colour for the marker.
+			const markerColor = typeof item.color === 'string' ? item.color : undefined;
+			return (
+				<div
+					key={item.seriesIndex}
+					data-legend-item-id={item.seriesIndex}
+					className={cx('legend-item', `legend-item-${position.toLowerCase()}`, {
+						'legend-item-off': !item.show,
+						'legend-item-focused': focusedSeriesIndex === item.seriesIndex,
+					})}
+				>
+					<TooltipSimple title={item.label} arrow side="top" disableHoverableContent>
+						<div className="legend-item-label-trigger">
+							<div
+								className="legend-marker"
+								style={{ borderColor: markerColor }}
+								data-is-legend-marker={true}
+							/>
+							<span className="legend-label">{item.label}</span>
+						</div>
+					</TooltipSimple>
+					{showCopy && (
+						<CopyButton
+							value={item.label ?? ''}
+							size={12}
+							className="legend-copy-button"
+							ariaLabel={`Copy ${item.label}`}
+							testId="legend-copy"
+						/>
+					)}
+				</div>
+			);
+		},
+		[focusedSeriesIndex, position, showCopy],
 	);
 
+	const isEmptyState = useMemo(() => {
+		if (!searchEnabled || !legendSearchQuery.trim()) {
+			return false;
+		}
+		return visibleLegendItems.length === 0;
+	}, [searchEnabled, legendSearchQuery, visibleLegendItems]);
+
 	return (
 		<div
 			ref={legendContainerRef}
-			className={cx(styles.container, {
-				[styles.isRight]: isRightPosition,
-			})}
-			style={{ ['--legend-item-width' as string]: `${itemWidth}px` }}
-			onMouseLeave={handleMouseLeave}
-			data-testid="legend-container"
+			className="legend-container"
+			onClick={onClick}
+			onMouseMove={onMouseMove}
+			onMouseLeave={onMouseLeave}
+			style={{
+				['--legend-average-width' as string]: `${averageLegendWidth + 16}px`, // 16px is the marker width
+			}}
 		>
-			{showToolbar && (
-				<LegendToolbar
-					visibleCount={visibleCount}
-					totalCount={items.length}
-					showFilter={showFilter}
-					filterQuery={filterQuery}
-					onFilterQueryChange={setFilterQuery}
-				/>
+			{searchEnabled && (
+				<div className="legend-search-container">
+					<Input
+						allowClear
+						placeholder="Search..."
+						value={legendSearchQuery}
+						onChange={(e): void => setLegendSearchQuery(e.target.value)}
+						data-testid="legend-search-input"
+						className="legend-search-input"
+					/>
+				</div>
 			)}
 			{isEmptyState ? (
-				<div className={styles.emptyState}>
-					No series found matching &quot;{effectiveQuery}&quot;
+				<div className="legend-empty-state">
+					No series found matching &quot;{legendSearchQuery}&quot;
 				</div>
 			) : (
 				<VirtuosoGrid
-					className={styles.scroller}
-					listClassName={styles.gridList}
-					itemClassName={styles.gridItem}
+					className={cx(
+						'legend-virtuoso-container',
+						`legend-virtuoso-container-${position.toLowerCase()}`,
+						{ 'legend-virtuoso-container-single-row': isSingleRow },
+					)}
 					data={visibleLegendItems}
 					itemContent={(_, item): JSX.Element => renderLegendItem(item)}
 				/>

frontend/src/lib/uPlotV2/components/Legend/LegendRow.tsx

@@ -1,180 +0,0 @@
-import { KeyboardEvent, memo, MouseEvent, useCallback } from 'react';
-import { Button } from '@signozhq/ui/button';
-import { TooltipSimple } from '@signozhq/ui/tooltip';
-import cx from 'classnames';
-import { LegendItem } from 'lib/uPlotV2/config/types';
-import CopyButton from 'periscope/components/CopyButton/CopyButton';
-
-import { LEGEND_TOOLTIP_DELAY_MS } from './constants';
-import styles from './Legend.module.scss';
-
-export interface LegendRowProps {
-	item: LegendItem;
-	/** The only series currently shown, so hiding it is refused. */
-	isSoleShown: boolean;
-	/** Nothing is hidden, so the row's action can only narrow the selection. */
-	isAllShown: boolean;
-	isFocused: boolean;
-	showCopy: boolean;
-	/** Row click, whose meaning depends on how many series are shown. */
-	onRowClick: (seriesIndex: number) => void;
-	/** Marker click: hide or show just this series. */
-	onToggleVisibility: (seriesIndex: number) => void;
-	onShowOnly: (seriesIndex: number) => void;
-	onShowAll: () => void;
-	onHover: (seriesIndex: number | null) => void;
-}
-
-/**
- * One legend row. The marker is its own target for excluding a single series —
- * the one thing the row click can't do while everything is showing. The actions
- * overlay the label's tail rather than taking layout width, and their reveal is
- * pure CSS.
- */
-function LegendRow({
-	item,
-	isSoleShown,
-	isAllShown,
-	isFocused,
-	showCopy,
-	onRowClick,
-	onToggleVisibility,
-	onShowOnly,
-	onShowAll,
-	onHover,
-}: LegendRowProps): JSX.Element {
-	const { seriesIndex, show } = item;
-	const label = item.label ?? '';
-	const isShowAllAction = show && !isAllShown;
-	const scopeActionLabel = isShowAllAction
-		? 'Show all series'
-		: 'Show only current series';
-	// `color` is uPlot's stroke union (string | fn | gradient); only a string is
-	// a usable CSS colour for the marker.
-	const seriesColor = typeof item.color === 'string' ? item.color : undefined;
-
-	const handleRowClick = useCallback(
-		(): void => onRowClick(seriesIndex),
-		[onRowClick, seriesIndex],
-	);
-
-	const handleMarkerClick = useCallback(
-		(event: MouseEvent<HTMLButtonElement>): void => {
-			event.stopPropagation();
-			onToggleVisibility(seriesIndex);
-		},
-		[onToggleVisibility, seriesIndex],
-	);
-
-	const handleKeyDown = useCallback(
-		(event: KeyboardEvent<HTMLDivElement>): void => {
-			// Let the row actions handle their own keys.
-			if (event.target !== event.currentTarget) {
-				return;
-			}
-			if (event.key === 'Enter' || event.key === ' ') {
-				event.preventDefault();
-				onRowClick(seriesIndex);
-			}
-		},
-		[onRowClick, seriesIndex],
-	);
-
-	const handleScopeClick = useCallback(
-		(event: MouseEvent<HTMLButtonElement>): void => {
-			event.stopPropagation();
-			if (isShowAllAction) {
-				onShowAll();
-				return;
-			}
-			onShowOnly(seriesIndex);
-		},
-		[isShowAllAction, onShowAll, onShowOnly, seriesIndex],
-	);
-
-	const handleMouseEnter = useCallback(
-		(): void => onHover(seriesIndex),
-		[onHover, seriesIndex],
-	);
-
-	const handleMouseLeave = useCallback((): void => onHover(null), [onHover]);
-
-	return (
-		<div
-			className={cx(styles.row, {
-				[styles.isHidden]: !show,
-				[styles.isFocused]: isFocused,
-			})}
-			data-legend-item-id={seriesIndex}
-			data-testid={`legend-item-${seriesIndex}`}
-			role="switch"
-			tabIndex={0}
-			aria-checked={show}
-			aria-label={label}
-			onClick={handleRowClick}
-			onKeyDown={handleKeyDown}
-			onMouseEnter={handleMouseEnter}
-			onMouseLeave={handleMouseLeave}
-		>
-			<button
-				type="button"
-				className={styles.marker}
-				style={{
-					borderColor: seriesColor,
-					backgroundColor: show ? seriesColor : 'transparent',
-				}}
-				onClick={handleMarkerClick}
-				disabled={isSoleShown}
-				aria-label={`${show ? 'Hide' : 'Show'} ${label}`}
-				data-is-legend-marker={true}
-				data-testid={`legend-marker-${seriesIndex}`}
-			/>
-			<TooltipSimple
-				title={label}
-				arrow
-				side="top"
-				delayDuration={LEGEND_TOOLTIP_DELAY_MS}
-				disableHoverableContent
-				tooltipContentProps={{ className: styles.rowTooltip }}
-			>
-				<span className={styles.label}>{label}</span>
-			</TooltipSimple>
-			<div className={styles.actions}>
-				<TooltipSimple
-					title={scopeActionLabel}
-					arrow
-					side="top"
-					delayDuration={LEGEND_TOOLTIP_DELAY_MS}
-					disableHoverableContent
-					tooltipContentProps={{ className: styles.rowTooltip }}
-				>
-					{/* Radix's asChild merge strips the button's own data-testid. */}
-					<span className={styles.actionTrigger}>
-						<Button
-							variant="ghost"
-							color="secondary"
-							size="sm"
-							className={cx(styles.actionButton, styles.scopeButton)}
-							onClick={handleScopeClick}
-							aria-label={scopeActionLabel}
-							testId={`legend-scope-${seriesIndex}`}
-						>
-							{isShowAllAction ? 'All' : 'Only'}
-						</Button>
-					</span>
-				</TooltipSimple>
-				{showCopy && (
-					<CopyButton
-						value={label}
-						size={13}
-						className={styles.actionButton}
-						ariaLabel={`Copy ${label}`}
-						testId={`legend-copy-${seriesIndex}`}
-					/>
-				)}
-			</div>
-		</div>
-	);
-}
-
-export default memo(LegendRow);

frontend/src/lib/uPlotV2/components/Legend/LegendToolbar.tsx

@@ -1,56 +0,0 @@
-import { ChangeEvent, useCallback } from 'react';
-import { Input } from 'antd';
-import { Search } from '@signozhq/icons';
-
-import styles from './Legend.module.scss';
-
-export interface LegendToolbarProps {
-	visibleCount: number;
-	totalCount: number;
-	/** Search is intrinsic to the right-positioned legend. */
-	showFilter: boolean;
-	filterQuery: string;
-	onFilterQueryChange: (query: string) => void;
-}
-
-/** Legend chrome: the series search box and the "Showing N of M" readout. */
-export default function LegendToolbar({
-	visibleCount,
-	totalCount,
-	showFilter,
-	filterQuery,
-	onFilterQueryChange,
-}: LegendToolbarProps): JSX.Element {
-	const handleFilterChange = useCallback(
-		(event: ChangeEvent<HTMLInputElement>): void =>
-			onFilterQueryChange(event.target.value),
-		[onFilterQueryChange],
-	);
-
-	return (
-		<>
-			{showFilter && (
-				<div className={styles.searchContainer}>
-					<Input
-						allowClear
-						prefix={<Search size={12} className={styles.searchIcon} />}
-						placeholder="Search..."
-						value={filterQuery}
-						onChange={handleFilterChange}
-						className={styles.searchInput}
-						data-testid="legend-search-input"
-					/>
-				</div>
-			)}
-			<div className={styles.toolbar}>
-				<span
-					className={styles.status}
-					aria-live="polite"
-					data-testid="legend-status"
-				>
-					{`Showing ${visibleCount} of ${totalCount} series`}
-				</span>
-			</div>
-		</>
-	);
-}

frontend/src/lib/uPlotV2/components/Legend/UPlotLegend.tsx

@@ -8,8 +8,8 @@ import Legend from './Legend';
 
 /**
  * uPlot legend controller. Derives the legend items + focus/visibility state
- * from the chart config (useLegendsSync) and the series interactions from the
- * plot context (useLegendActions), then renders the presentational Legend.
+ * from the chart config (useLegendsSync) and the toggle/focus interactions from
+ * the plot context (useLegendActions), then renders the presentational Legend.
  * Must be rendered inside a PlotContextProvider.
  */
 export default function UPlotLegend({
@@ -17,9 +17,13 @@ export default function UPlotLegend({
 	config,
 	averageLegendWidth,
 }: UPlotLegendProps): JSX.Element {
-	const { legendItemsMap, focusedSeriesIndex } = useLegendsSync({ config });
-	const { onToggleSeries, onShowOnlySeries, onShowAllSeries, onHoverSeries } =
-		useLegendActions();
+	const { legendItemsMap, focusedSeriesIndex, setFocusedSeriesIndex } =
+		useLegendsSync({ config });
+	const { onLegendClick, onLegendMouseMove, onLegendMouseLeave } =
+		useLegendActions({
+			setFocusedSeriesIndex,
+			focusedSeriesIndex,
+		});
 
 	const items = useMemo(() => Object.values(legendItemsMap), [legendItemsMap]);
 
@@ -29,10 +33,9 @@ export default function UPlotLegend({
 			position={position}
 			averageLegendWidth={averageLegendWidth}
 			focusedSeriesIndex={focusedSeriesIndex}
-			onToggleSeries={onToggleSeries}
-			onShowOnlySeries={onShowOnlySeries}
-			onShowAllSeries={onShowAllSeries}
-			onHoverSeries={onHoverSeries}
+			onClick={onLegendClick}
+			onMouseMove={onLegendMouseMove}
+			onMouseLeave={onLegendMouseLeave}
 		/>
 	);
 }

frontend/src/lib/uPlotV2/components/Legend/__tests__/utils.test.ts

@@ -1,45 +0,0 @@
-import { LegendItem } from 'lib/uPlotV2/config/types';
-
-import { filterLegendItems, getShownSeriesState } from '../utils';
-
-const items = (shown: boolean[]): LegendItem[] =>
-	shown.map((show, index) => ({
-		seriesIndex: index + 1,
-		label: `series-${index}`,
-		color: '#000',
-		show,
-	}));
-
-describe('getShownSeriesState', () => {
-	it('counts the shown series', () => {
-		expect(getShownSeriesState(items([true, false, true]))).toStrictEqual({
-			visibleCount: 2,
-			soleShownSeriesIndex: null,
-		});
-	});
-
-	it('names the series when exactly one is shown', () => {
-		expect(getShownSeriesState(items([false, true, false]))).toStrictEqual({
-			visibleCount: 1,
-			soleShownSeriesIndex: 2,
-		});
-	});
-
-	it('reports nothing shown', () => {
-		expect(getShownSeriesState(items([false, false]))).toStrictEqual({
-			visibleCount: 0,
-			soleShownSeriesIndex: null,
-		});
-	});
-});
-
-describe('filterLegendItems', () => {
-	it('matches case-insensitively on the label', () => {
-		const filtered = filterLegendItems(items([true, true, true]), 'SERIES-1');
-		expect(filtered.map((item) => item.label)).toStrictEqual(['series-1']);
-	});
-
-	it('returns every item for a blank query', () => {
-		expect(filterLegendItems(items([true, true]), '   ')).toHaveLength(2);
-	});
-});

frontend/src/lib/uPlotV2/components/Legend/constants.ts

@@ -1,20 +0,0 @@
-/** Widest a single legend item is allowed to get when sizing the legend grid. */
-export const MAX_LEGEND_WIDTH = 240;
-
-/**
- * Enough for a row to contain its own hover actions, which a short label would
- * otherwise size a column too narrow for. Little room for the label is intended.
- */
-export const MIN_LEGEND_ITEM_WIDTH = 110;
-
-/** Marker + row padding, on top of the estimated label width. */
-export const LEGEND_ITEM_EXTRA_WIDTH = 16;
-
-/** Must match `.row`'s height and the grid's row gap, or the reserved
- * rectangle clips a row. */
-export const LEGEND_ROW_HEIGHT = 28;
-export const LEGEND_ROW_GAP = 2;
-export const LEGEND_MAX_BOTTOM_ROWS = 2;
-
-/** Hover delay before a row's full-name tooltip opens. */
-export const LEGEND_TOOLTIP_DELAY_MS = 500;

frontend/src/lib/uPlotV2/components/Legend/utils.ts

@@ -1,34 +0,0 @@
-import { LegendItem } from 'lib/uPlotV2/config/types';
-
-export interface ShownSeriesState {
-	visibleCount: number;
-	/** The series index when exactly one series is shown, else null. */
-	soleShownSeriesIndex: number | null;
-}
-
-/**
- * Driven by what is actually shown, never a remembered isolation: hiding series
- * one at a time down to a single one is the same state as "Only".
- */
-export function getShownSeriesState(items: LegendItem[]): ShownSeriesState {
-	const shown = items.filter((item) => item.show);
-
-	return {
-		visibleCount: shown.length,
-		soleShownSeriesIndex: shown.length === 1 ? shown[0].seriesIndex : null,
-	};
-}
-
-export function filterLegendItems(
-	items: LegendItem[],
-	query: string,
-): LegendItem[] {
-	const normalisedQuery = query.trim().toLowerCase();
-	if (!normalisedQuery) {
-		return items;
-	}
-
-	return items.filter((item) =>
-		item.label?.toLowerCase().includes(normalisedQuery),
-	);
-}

frontend/src/lib/uPlotV2/components/Tooltip/components/TooltipItem/TooltipItem.module.scss

@@ -12,11 +12,10 @@
 	}
 }
 
-// Matches the legend row's marker.
 .uplotTooltipItemMarker {
-	border-radius: var(--radius);
+	border-radius: 50%;
 	border-style: solid;
-	border-width: 1.5px;
+	border-width: 2px;
 	width: 12px;
 	height: 12px;
 	box-sizing: border-box;
@@ -31,23 +30,11 @@
 	justify-content: space-between;
 }
 
-// The legend's mono type; the container's Inter stays for the header.
-.uplotTooltipItemLabel,
-.uplotTooltipItemValue {
-	font-family: var(--font-mono);
-	font-size: var(--font-size-xs);
-	letter-spacing: -0.01em;
-}
-
 .uplotTooltipItemLabel {
 	white-space: normal;
 	overflow-wrap: anywhere;
 }
 
-.uplotTooltipItemValue {
-	white-space: nowrap;
-}
-
 .uplotTooltipItemContentSeparator {
 	flex: 1;
 	border-width: 0.5px;

frontend/src/lib/uPlotV2/components/Tooltip/components/TooltipItem/TooltipItem.tsx

@@ -25,7 +25,7 @@ export default function TooltipItem({
 		>
 			<div
 				className={Styles.uplotTooltipItemMarker}
-				style={{ borderColor: item.color, backgroundColor: item.color }}
+				style={{ borderColor: item.color }}
 				data-is-legend-marker={true}
 				data-testid={markerTestId}
 			/>
@@ -39,7 +39,7 @@ export default function TooltipItem({
 					className={Styles.uplotTooltipItemContentSeparator}
 					style={{ borderColor: item.color }}
 				/>
-				<span className={Styles.uplotTooltipItemValue}>{item.tooltipValue}</span>
+				<span>{item.tooltipValue}</span>
 			</div>
 		</div>
 	);

frontend/src/lib/uPlotV2/components/__tests__/UPlotLegend.test.tsx

@@ -61,16 +61,16 @@ describe('UPlotLegend', () => {
 		},
 	};
 
-	let onToggleSeries: jest.Mock;
-	let onShowOnlySeries: jest.Mock;
-	let onShowAllSeries: jest.Mock;
-	let onHoverSeries: jest.Mock;
+	let onLegendClick: jest.Mock;
+	let onLegendMouseMove: jest.Mock;
+	let onLegendMouseLeave: jest.Mock;
+	let onFocusSeries: jest.Mock;
 
 	beforeEach(() => {
-		onToggleSeries = jest.fn();
-		onShowOnlySeries = jest.fn();
-		onShowAllSeries = jest.fn();
-		onHoverSeries = jest.fn();
+		onLegendClick = jest.fn();
+		onLegendMouseMove = jest.fn();
+		onLegendMouseLeave = jest.fn();
+		onFocusSeries = jest.fn();
 
 		mockUseLegendsSync.mockReturnValue({
 			legendItemsMap: baseLegendItemsMap,
@@ -79,10 +79,10 @@ describe('UPlotLegend', () => {
 		});
 
 		mockUseLegendActions.mockReturnValue({
-			onToggleSeries,
-			onShowOnlySeries,
-			onShowAllSeries,
-			onHoverSeries,
+			onLegendClick,
+			onLegendMouseMove,
+			onLegendMouseLeave,
+			onFocusSeries,
 		});
 	});
 
@@ -102,39 +102,28 @@ describe('UPlotLegend', () => {
 		);
 
 	describe('layout and position', () => {
-		it('renders the search input on a RIGHT legend', () => {
+		it('renders search input when legend position is RIGHT', () => {
 			renderLegend(LegendPosition.RIGHT);
 
 			expect(screen.getByTestId('legend-search-input')).toBeInTheDocument();
 		});
 
-		it('keeps a BOTTOM legend bare — its two rows all go to series', () => {
+		it('does not render search input when legend position is BOTTOM (default)', () => {
 			renderLegend();
 
 			expect(screen.queryByTestId('legend-search-input')).not.toBeInTheDocument();
-			expect(screen.queryByTestId('legend-status')).not.toBeInTheDocument();
-			// The row interactions are the same in both placements.
-			expect(screen.getByTestId('legend-item-0')).toBeInTheDocument();
-			expect(screen.getByTestId('legend-scope-0')).toBeInTheDocument();
 		});
 
-		it('renders the marker with the series colour, filled only when shown', () => {
+		it('renders the marker with the correct border color', () => {
 			renderLegend(LegendPosition.RIGHT);
 
-			expect(
-				document.querySelector(
-					'[data-legend-item-id="0"] [data-is-legend-marker="true"]',
-				),
-			).toHaveStyle({
+			const legendMarker = document.querySelector(
+				'[data-legend-item-id="0"] [data-is-legend-marker="true"]',
+			) as HTMLElement;
+
+			expect(legendMarker).toHaveStyle({
 				'border-color': '#ff0000',
-				'background-color': '#ff0000',
 			});
-			// Hidden series read as an empty checkbox.
-			expect(
-				document.querySelector(
-					'[data-legend-item-id="1"] [data-is-legend-marker="true"]',
-				),
-			).toHaveStyle({ 'background-color': 'transparent' });
 		});
 
 		it('renders all legend items in the grid by default', () => {
@@ -147,33 +136,25 @@ describe('UPlotLegend', () => {
 		});
 	});
 
-	describe('status readout', () => {
-		it('reports how many series are showing', () => {
-			renderLegend(LegendPosition.RIGHT);
-
-			expect(screen.getByTestId('legend-status')).toHaveTextContent(
-				'Showing 2 of 3 series',
-			);
-		});
-	});
-
-	describe('filter behavior', () => {
-		it('filters legend items based on the query (case-insensitive)', async () => {
+	describe('search behavior (RIGHT position)', () => {
+		it('filters legend items based on search query (case-insensitive)', async () => {
 			const user = userEvent.setup();
 			renderLegend(LegendPosition.RIGHT);
 
-			await user.type(screen.getByTestId('legend-search-input'), 'a');
+			const searchInput = screen.getByTestId('legend-search-input');
+			await user.type(searchInput, 'A');
 
 			expect(screen.getByText('A')).toBeInTheDocument();
 			expect(screen.queryByText('B')).not.toBeInTheDocument();
 			expect(screen.queryByText('C')).not.toBeInTheDocument();
 		});
 
-		it('shows the empty state when nothing matches', async () => {
+		it('shows empty state when no legend items match the search query', async () => {
 			const user = userEvent.setup();
 			renderLegend(LegendPosition.RIGHT);
 
-			await user.type(screen.getByTestId('legend-search-input'), 'network');
+			const searchInput = screen.getByTestId('legend-search-input');
+			await user.type(searchInput, 'network');
 
 			expect(
 				screen.getByText(/No series found matching "network"/i),
@@ -181,11 +162,12 @@ describe('UPlotLegend', () => {
 			expect(screen.queryByTestId('virtuoso-grid')).not.toBeInTheDocument();
 		});
 
-		it('ignores a whitespace-only query', async () => {
+		it('does not filter or show empty state when search query is empty or only whitespace', async () => {
 			const user = userEvent.setup();
 			renderLegend(LegendPosition.RIGHT);
 
-			await user.type(screen.getByTestId('legend-search-input'), '   ');
+			const searchInput = screen.getByTestId('legend-search-input');
+			await user.type(searchInput, '   ');
 
 			expect(
 				screen.queryByText(/No series found matching/i),
@@ -196,197 +178,39 @@ describe('UPlotLegend', () => {
 		});
 	});
 
-	describe('row interactions', () => {
-		const allShownItemsMap = {
-			0: { ...baseLegendItemsMap[0] },
-			1: { ...baseLegendItemsMap[1], show: true },
-			2: { ...baseLegendItemsMap[2] },
-		};
-
-		const mockAllShown = (): void => {
-			mockUseLegendsSync.mockReturnValue({
-				legendItemsMap: allShownItemsMap,
-				focusedSeriesIndex: null,
-				setFocusedSeriesIndex: jest.fn(),
-			});
-		};
-
-		it('isolates the series when everything is showing', async () => {
-			const user = userEvent.setup();
-			mockAllShown();
-			renderLegend(LegendPosition.RIGHT);
-
-			await user.click(screen.getByText('A'));
-
-			// Nothing the user can see is there to exclude, so the click means Only.
-			expect(onShowOnlySeries).toHaveBeenCalledWith(0);
-			expect(onToggleSeries).not.toHaveBeenCalled();
-		});
-
-		it('toggles the series once something is already hidden', async () => {
+	describe('legend actions', () => {
+		it('calls onLegendClick when a legend item is clicked', async () => {
 			const user = userEvent.setup();
 			renderLegend(LegendPosition.RIGHT);
 
 			await user.click(screen.getByText('A'));
 
-			expect(onToggleSeries).toHaveBeenCalledWith(0);
-			expect(onShowOnlySeries).not.toHaveBeenCalled();
+			expect(onLegendClick).toHaveBeenCalledTimes(1);
 		});
 
-		it('excludes just that series when its marker is clicked', async () => {
-			const user = userEvent.setup();
-			mockAllShown();
-			renderLegend(LegendPosition.RIGHT);
-
-			await user.click(screen.getByTestId('legend-marker-0'));
-
-			// The marker is the one way to exclude a single series while
-			// everything is showing — the row click isolates instead.
-			expect(onToggleSeries).toHaveBeenCalledWith(0);
-			expect(onShowOnlySeries).not.toHaveBeenCalled();
-		});
-
-		it('stops the marker offering to hide the last series showing', () => {
-			mockUseLegendsSync.mockReturnValue({
-				legendItemsMap: {
-					0: { ...baseLegendItemsMap[0] },
-					1: { ...baseLegendItemsMap[1] },
-					2: { ...baseLegendItemsMap[2], show: false },
-				},
-				focusedSeriesIndex: null,
-				setFocusedSeriesIndex: jest.fn(),
-			});
-			renderLegend(LegendPosition.RIGHT);
-
-			expect(screen.getByTestId('legend-marker-0')).toBeDisabled();
-			expect(screen.getByTestId('legend-marker-1')).toBeEnabled();
-		});
-
-		it('labels the marker with what clicking it does', () => {
-			renderLegend(LegendPosition.RIGHT);
-
-			expect(screen.getByTestId('legend-marker-0')).toHaveAttribute(
-				'aria-label',
-				'Hide A',
-			);
-			expect(screen.getByTestId('legend-marker-1')).toHaveAttribute(
-				'aria-label',
-				'Show B',
-			);
-		});
-
-		it('adds the clicked series to the selection while one is alone', async () => {
-			const user = userEvent.setup();
-			mockUseLegendsSync.mockReturnValue({
-				legendItemsMap: {
-					0: { ...baseLegendItemsMap[0] },
-					1: { ...baseLegendItemsMap[1] },
-					2: { ...baseLegendItemsMap[2], show: false },
-				},
-				focusedSeriesIndex: null,
-				setFocusedSeriesIndex: jest.fn(),
-			});
-			renderLegend(LegendPosition.RIGHT);
-
-			// Series 0 is showing alone; clicking another row builds the selection
-			// up rather than moving the isolation.
-			await user.click(screen.getByText('B'));
-
-			expect(onToggleSeries).toHaveBeenCalledWith(1);
-			expect(onShowOnlySeries).not.toHaveBeenCalled();
-		});
-
-		it('toggles the series on Enter and Space', async () => {
+		it('calls mouseMove when the mouse moves over a legend item', async () => {
 			const user = userEvent.setup();
 			renderLegend(LegendPosition.RIGHT);
 
-			const row = screen.getByTestId('legend-item-0');
-			row.focus();
-			await user.keyboard('{Enter}');
-			await user.keyboard(' ');
+			const legendItem = document.querySelector(
+				'[data-legend-item-id="0"]',
+			) as HTMLElement;
 
-			expect(onToggleSeries).toHaveBeenCalledTimes(2);
-			expect(onToggleSeries).toHaveBeenCalledWith(0);
+			await user.hover(legendItem);
+
+			expect(onLegendMouseMove).toHaveBeenCalledTimes(1);
 		});
 
-		it('reflects visibility on the row for assistive tech', () => {
-			renderLegend(LegendPosition.RIGHT);
-
-			expect(screen.getByTestId('legend-item-0')).toHaveAttribute(
-				'aria-checked',
-				'true',
-			);
-			expect(screen.getByTestId('legend-item-1')).toHaveAttribute(
-				'aria-checked',
-				'false',
-			);
-		});
-
-		it('restores every series from All without also toggling the row', async () => {
+		it('calls onLegendMouseLeave when the mouse leaves the legend container', async () => {
 			const user = userEvent.setup();
 			renderLegend(LegendPosition.RIGHT);
 
-			// Series 0 is shown while B is hidden, so its action is All.
-			await user.click(screen.getByTestId('legend-scope-0'));
+			const container = document.querySelector('.legend-container') as HTMLElement;
 
-			expect(onShowAllSeries).toHaveBeenCalled();
-			expect(onToggleSeries).not.toHaveBeenCalled();
-			expect(onShowOnlySeries).not.toHaveBeenCalled();
-		});
+			await user.hover(container);
+			await user.unhover(container);
 
-		it('isolates the series from Only on a hidden row', async () => {
-			const user = userEvent.setup();
-			renderLegend(LegendPosition.RIGHT);
-
-			await user.click(screen.getByTestId('legend-scope-1'));
-
-			expect(onShowOnlySeries).toHaveBeenCalledWith(1);
-			expect(onToggleSeries).not.toHaveBeenCalled();
-		});
-
-		it('highlights the hovered series and clears it on leave', async () => {
-			const user = userEvent.setup();
-			renderLegend(LegendPosition.RIGHT);
-
-			const row = screen.getByTestId('legend-item-0');
-			await user.hover(row);
-			expect(onHoverSeries).toHaveBeenCalledWith(0);
-
-			await user.unhover(row);
-			expect(onHoverSeries).toHaveBeenCalledWith(null);
-		});
-	});
-
-	describe('one-series state', () => {
-		const soleShownItemsMap = {
-			0: { ...baseLegendItemsMap[0] },
-			1: { ...baseLegendItemsMap[1] },
-			2: { ...baseLegendItemsMap[2], show: false },
-		};
-
-		beforeEach(() => {
-			mockUseLegendsSync.mockReturnValue({
-				legendItemsMap: soleShownItemsMap,
-				focusedSeriesIndex: null,
-				setFocusedSeriesIndex: jest.fn(),
-			});
-		});
-
-		it('offers All on the shown row and Only on the hidden ones', () => {
-			renderLegend(LegendPosition.RIGHT);
-
-			expect(screen.getByTestId('legend-scope-0')).toHaveTextContent('All');
-			expect(screen.getByTestId('legend-scope-1')).toHaveTextContent('Only');
-			expect(screen.getByTestId('legend-scope-2')).toHaveTextContent('Only');
-		});
-
-		it('restores everything from All', async () => {
-			const user = userEvent.setup();
-			renderLegend(LegendPosition.RIGHT);
-
-			await user.click(screen.getByTestId('legend-scope-0'));
-
-			expect(onShowAllSeries).toHaveBeenCalled();
+			expect(onLegendMouseLeave).toHaveBeenCalledTimes(1);
 		});
 	});
 });

frontend/src/lib/uPlotV2/components/types.ts

@@ -1,4 +1,4 @@
-import { ReactNode } from 'react';
+import { MouseEventHandler, ReactNode } from 'react';
 import { Timezone } from 'components/CustomTimePicker/timezoneUtils';
 import { PrecisionOption } from 'components/Graph/types';
 import uPlot from 'uplot';
@@ -118,23 +118,23 @@ export interface LegendConfig {
 /**
  * Presentational legend props. Source-agnostic: it renders whatever `items`
  * it's given and delegates interaction to the container handlers, so it serves
- * both uPlot charts (via UPlotLegend) and non-uPlot charts (Pie).
+ * both uPlot charts (via UPlotLegend) and non-uPlot charts (Pie). The search
+ * box is intrinsic to the RIGHT position (derived from `position`, not a flag).
  */
 export interface LegendProps {
 	items: LegendItem[];
 	/** Legend placement; always supplied by the container. */
 	position: LegendPosition;
 	averageLegendWidth?: number;
-	/** Series index highlighted by the chart cursor. */
+	/** Series index to highlight (hovered/focused). */
 	focusedSeriesIndex: number | null;
-	/** Row click / Space / Enter: hide or show that one series. */
-	onToggleSeries: (seriesIndex: number) => void;
-	/** "Only": show that series alone. */
-	onShowOnlySeries: (seriesIndex: number) => void;
-	/** "All": leave the narrowed selection and show every series. */
-	onShowAllSeries: () => void;
-	/** Row hover, for the chart-side highlight; null on leave. */
-	onHoverSeries: (seriesIndex: number | null) => void;
+	/**
+	 * Container-delegated handlers. Items carry `data-legend-item-id`, so the
+	 * handler reads the target's id rather than binding per item.
+	 */
+	onClick: MouseEventHandler<HTMLDivElement>;
+	onMouseMove: MouseEventHandler<HTMLDivElement>;
+	onMouseLeave: () => void;
 	/** Show the per-item copy button. Default true. */
 	showCopy?: boolean;
 }

frontend/src/lib/uPlotV2/constants.ts

@@ -6,11 +6,6 @@ export const DEFAULT_HOVER_PROXIMITY_VALUE = 30; // only snap if within 30px hor
 export const DEFAULT_FOCUS_PROXIMITY_VALUE = 1e6;
 export const STEP_INTERVAL_MULTIPLIER = 3; // multiply the width computed by STEP_INTERVAL_MULTIPLIER to get the hover prox value
 
-/** Opacity applied to the series that are NOT highlighted while a legend row is hovered. */
-export const LEGEND_HIGHLIGHT_DIM_ALPHA = 0.16;
-/** Stroke-width multiplier applied to the series highlighted from the legend. */
-export const LEGEND_HIGHLIGHT_WIDTH_RATIO = 1.6;
-
 export const DEFAULT_PLOT_CONFIG: Partial<Options> = {
 	focus: {
 		alpha: 0.3,

frontend/src/lib/uPlotV2/context/PlotContext.tsx

@@ -8,10 +8,6 @@ import {
 	useMemo,
 	useRef,
 } from 'react';
-import {
-	LEGEND_HIGHLIGHT_DIM_ALPHA,
-	LEGEND_HIGHLIGHT_WIDTH_RATIO,
-} from 'lib/uPlotV2/constants';
 import type { SeriesVisibilityItem } from 'lib/visualization/panels/types';
 import { updateSeriesVisibilityToLocalStorage } from 'lib/visualization/panels/utils/legendVisibilityUtils';
 import type uPlot from 'uplot';
@@ -24,26 +20,12 @@ export interface IPlotContext {
 	setPlotContextInitialState: (state: PlotContextInitialState) => void;
 	onToggleSeriesVisibility: (seriesIndex: number) => void;
 	onToggleSeriesOnOff: (seriesIndex: number) => void;
-	/** Show this series alone. */
-	onShowOnlySeries: (seriesIndex: number) => void;
-	/** Show every series again. */
-	onShowAllSeries: () => void;
 	onFocusSeries: (seriesIndex: number | null) => void;
-	/** Lift one series above the rest (dim + thicken) without changing visibility. */
-	onHighlightSeries: (seriesIndex: number | null) => void;
 	syncSeriesVisibilityToLocalStorage: () => void;
 }
 
 export const PlotContext = createContext<IPlotContext | null>(null);
 
-/** Data series (index 0 is the x-axis) currently drawn. */
-const countShownSeries = (plot: uPlot): number =>
-	plot.series.reduce(
-		(count, series, index) =>
-			index > 0 && series.show !== false ? count + 1 : count,
-		0,
-	);
-
 export const PlotContextProvider = ({
 	children,
 }: PropsWithChildren): JSX.Element => {
@@ -51,9 +33,6 @@ export const PlotContextProvider = ({
 	const activeSeriesIndex = useRef<number | undefined>(undefined);
 	const idRef = useRef<string | undefined>(undefined);
 	const shouldSavePreferencesRef = useRef<boolean>(false);
-	/** Pre-highlight stroke widths, captured on the first highlight so it can be undone. */
-	const baseSeriesWidthsRef = useRef<Map<number, number | undefined>>(new Map());
-	const highlightedSeriesIndexRef = useRef<number | null>(null);
 
 	const setPlotContextInitialState = useCallback(
 		({
@@ -64,8 +43,6 @@ export const PlotContextProvider = ({
 			uPlotInstanceRef.current = uPlotInstance;
 			idRef.current = id;
 			activeSeriesIndex.current = undefined;
-			baseSeriesWidthsRef.current = new Map();
-			highlightedSeriesIndexRef.current = null;
 			shouldSavePreferencesRef.current = !!shouldSaveSelectionPreference;
 		},
 		[],
@@ -87,54 +64,6 @@ export const PlotContextProvider = ({
 		updateSeriesVisibilityToLocalStorage(idRef.current, seriesVisibility);
 	}, []);
 
-	const onHighlightSeries = useCallback((seriesIndex: number | null): void => {
-		const plot = uPlotInstanceRef.current;
-		if (!plot) {
-			return;
-		}
-
-		highlightedSeriesIndexRef.current = seriesIndex;
-
-		plot.series.forEach((series, index) => {
-			if (index === 0) {
-				return;
-			}
-			if (!baseSeriesWidthsRef.current.has(index)) {
-				baseSeriesWidthsRef.current.set(index, series.width);
-			}
-			const baseWidth = baseSeriesWidthsRef.current.get(index);
-			const isHighlighted = index === seriesIndex;
-
-			/* eslint-disable no-param-reassign */
-			series.alpha =
-				seriesIndex === null || isHighlighted ? 1 : LEGEND_HIGHLIGHT_DIM_ALPHA;
-			series.width =
-				isHighlighted && baseWidth !== undefined
-					? baseWidth * LEGEND_HIGHLIGHT_WIDTH_RATIO
-					: baseWidth;
-			/* eslint-enable no-param-reassign */
-		});
-
-		// Only the stroke style changed, so the cached paths stay valid.
-		plot.redraw(false);
-	}, []);
-
-	/**
-	 * Leaving the dim on a hidden series leaves every other one faded, which
-	 * reads as an isolation rather than as one series being excluded.
-	 */
-	const clearHighlightIfHidden = useCallback((): void => {
-		const plot = uPlotInstanceRef.current;
-		const highlightedIndex = highlightedSeriesIndexRef.current;
-		if (!plot || highlightedIndex === null) {
-			return;
-		}
-
-		if (plot.series[highlightedIndex]?.show === false) {
-			onHighlightSeries(null);
-		}
-	}, [onHighlightSeries]);
-
 	const onToggleSeriesVisibility = useCallback(
 		(seriesIndex: number): void => {
 			const plot = uPlotInstanceRef.current;
@@ -174,61 +103,14 @@ export const PlotContextProvider = ({
 			if (!series) {
 				return;
 			}
-
-			// An empty chart is never worth reaching.
-			const isHiding = series.show !== false;
-			if (isHiding && countShownSeries(plot) <= 1) {
-				return;
-			}
-
 			plot.setSeries(seriesIndex, { show: !series.show });
 			if (idRef.current && shouldSavePreferencesRef.current) {
 				syncSeriesVisibilityToLocalStorage();
 			}
-
-			clearHighlightIfHidden();
 		},
-		[syncSeriesVisibilityToLocalStorage, clearHighlightIfHidden],
+		[syncSeriesVisibilityToLocalStorage],
 	);
 
-	/** Applies `resolveShow` to every data series in one batch, then persists. */
-	const setSeriesVisibility = useCallback(
-		(resolveShow: (seriesIndex: number) => boolean): void => {
-			const plot = uPlotInstanceRef.current;
-			if (!plot) {
-				return;
-			}
-
-			activeSeriesIndex.current = undefined;
-
-			plot.batch(() => {
-				plot.series.forEach((_, index) => {
-					if (index === 0) {
-						return;
-					}
-					plot.setSeries(index, { show: resolveShow(index) });
-				});
-				if (idRef.current && shouldSavePreferencesRef.current) {
-					syncSeriesVisibilityToLocalStorage();
-				}
-			});
-
-			clearHighlightIfHidden();
-		},
-		[syncSeriesVisibilityToLocalStorage, clearHighlightIfHidden],
-	);
-
-	const onShowOnlySeries = useCallback(
-		(seriesIndex: number): void => {
-			setSeriesVisibility((index) => index === seriesIndex);
-		},
-		[setSeriesVisibility],
-	);
-
-	const onShowAllSeries = useCallback((): void => {
-		setSeriesVisibility(() => true);
-	}, [setSeriesVisibility]);
-
 	const onFocusSeries = useCallback((seriesIndex: number | null): void => {
 		const plot = uPlotInstanceRef.current;
 		if (!plot) {
@@ -249,20 +131,14 @@ export const PlotContextProvider = ({
 			onToggleSeriesVisibility,
 			setPlotContextInitialState,
 			onToggleSeriesOnOff,
-			onShowOnlySeries,
-			onShowAllSeries,
 			onFocusSeries,
-			onHighlightSeries,
 			syncSeriesVisibilityToLocalStorage,
 		}),
 		[
 			onToggleSeriesVisibility,
 			setPlotContextInitialState,
 			onToggleSeriesOnOff,
-			onShowOnlySeries,
-			onShowAllSeries,
 			onFocusSeries,
-			onHighlightSeries,
 			syncSeriesVisibilityToLocalStorage,
 		],
 	);

frontend/src/lib/uPlotV2/context/__tests__/PlotContext.test.tsx

@@ -26,7 +26,6 @@ const createMockPlot = (series: MockSeries[] = []): uPlot =>
 		series,
 		batch: jest.fn((fn: () => void) => fn()),
 		setSeries: jest.fn(),
-		redraw: jest.fn(),
 	}) as unknown as uPlot;
 
 interface TestComponentProps {
@@ -45,10 +44,7 @@ const TestComponent = ({
 		syncSeriesVisibilityToLocalStorage,
 		onToggleSeriesVisibility,
 		onToggleSeriesOnOff,
-		onShowOnlySeries,
-		onShowAllSeries,
 		onFocusSeries,
-		onHighlightSeries,
 	} = usePlotContext();
 	const handleInit = (): void => {
 		if (!plot || !id || typeof shouldSaveSelectionPreference !== 'boolean') {
@@ -88,13 +84,6 @@ const TestComponent = ({
 			>
 				Toggle on/off 1
 			</button>
-			<button
-				type="button"
-				data-testid="toggle-on-off-2"
-				onClick={(): void => onToggleSeriesOnOff(2)}
-			>
-				Toggle on/off 2
-			</button>
 			<button
 				type="button"
 				data-testid="toggle-on-off-5"
@@ -109,34 +98,6 @@ const TestComponent = ({
 			>
 				Focus series
 			</button>
-			<button
-				type="button"
-				data-testid="show-only-1"
-				onClick={(): void => onShowOnlySeries(1)}
-			>
-				Show only 1
-			</button>
-			<button
-				type="button"
-				data-testid="show-all"
-				onClick={(): void => onShowAllSeries()}
-			>
-				Show all
-			</button>
-			<button
-				type="button"
-				data-testid="highlight-1"
-				onClick={(): void => onHighlightSeries(1)}
-			>
-				Highlight 1
-			</button>
-			<button
-				type="button"
-				data-testid="clear-highlight"
-				onClick={(): void => onHighlightSeries(null)}
-			>
-				Clear highlight
-			</button>
 		</div>
 	);
 };
@@ -312,7 +273,6 @@ describe('PlotContext', () => {
 			const series: MockSeries[] = [
 				{ label: 'x-axis', show: true },
 				{ label: 'CPU', show: true },
-				{ label: 'Memory', show: true },
 			];
 			const plot = createMockPlot(series);
 
@@ -364,7 +324,6 @@ describe('PlotContext', () => {
 			const series: MockSeries[] = [
 				{ label: 'x-axis', show: true },
 				{ label: 'CPU', show: true },
-				{ label: 'Memory', show: true },
 			];
 			const plot = createMockPlot(series);
 
@@ -384,48 +343,6 @@ describe('PlotContext', () => {
 			expect(plot.setSeries).toHaveBeenCalledWith(1, { show: false });
 			expect(mockUpdateSeriesVisibilityToLocalStorage).not.toHaveBeenCalled();
 		});
-
-		it('refuses to hide the last series showing', async () => {
-			const user = userEvent.setup();
-			const plot = createMockPlot([
-				{ label: 'x-axis', show: true },
-				{ label: 'CPU', show: true },
-				{ label: 'Memory', show: false },
-			]);
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('toggle-on-off-1'));
-
-			// An empty chart is never a state worth reaching.
-			expect(plot.setSeries).not.toHaveBeenCalled();
-			expect(mockUpdateSeriesVisibilityToLocalStorage).not.toHaveBeenCalled();
-		});
-
-		it('still shows a hidden series when only one is left showing', async () => {
-			const user = userEvent.setup();
-			const plot = createMockPlot([
-				{ label: 'x-axis', show: true },
-				{ label: 'CPU', show: false },
-				{ label: 'Memory', show: true },
-			]);
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('toggle-on-off-1'));
-
-			expect(plot.setSeries).toHaveBeenCalledWith(1, { show: true });
-		});
 	});
 
 	describe('onFocusSeries', () => {
@@ -464,193 +381,4 @@ describe('PlotContext', () => {
 			expect(plot.setSeries).toHaveBeenCalledWith(1, { focus: true }, false);
 		});
 	});
-	describe('onShowOnlySeries', () => {
-		const renderWithSeries = (
-			series: MockSeries[],
-		): { plot: uPlot; user: ReturnType<typeof userEvent.setup> } => {
-			const user = userEvent.setup();
-			const plot = createMockPlot(series);
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			return { plot, user };
-		};
-
-		it('hides every other series, leaving the x-axis alone', async () => {
-			const { plot, user } = renderWithSeries([
-				{ label: 'x-axis', show: true },
-				{ label: 'CPU', show: true },
-				{ label: 'Memory', show: true },
-			]);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('show-only-1'));
-
-			expect(plot.setSeries).toHaveBeenCalledWith(1, { show: true });
-			expect(plot.setSeries).toHaveBeenCalledWith(2, { show: false });
-			expect(plot.setSeries).not.toHaveBeenCalledWith(0, expect.anything());
-			expect(mockUpdateSeriesVisibilityToLocalStorage).toHaveBeenCalled();
-		});
-
-		it('keeps isolating the series that is already the only one shown', async () => {
-			const { plot, user } = renderWithSeries([
-				{ label: 'x-axis', show: true },
-				{ label: 'CPU', show: true },
-				{ label: 'Memory', show: false },
-			]);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('show-only-1'));
-
-			expect(plot.setSeries).toHaveBeenCalledWith(1, { show: true });
-			expect(plot.setSeries).toHaveBeenCalledWith(2, { show: false });
-		});
-	});
-
-	describe('onShowAllSeries', () => {
-		it('shows every hidden series again', async () => {
-			const user = userEvent.setup();
-			const plot = createMockPlot([
-				{ label: 'x-axis', show: true },
-				{ label: 'CPU', show: true },
-				{ label: 'Memory', show: false },
-			]);
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('show-all'));
-
-			expect(plot.setSeries).toHaveBeenCalledWith(1, { show: true });
-			expect(plot.setSeries).toHaveBeenCalledWith(2, { show: true });
-			expect(plot.setSeries).not.toHaveBeenCalledWith(0, expect.anything());
-		});
-	});
-
-	describe('onHighlightSeries', () => {
-		const series = (): MockSeries[] => [
-			{ label: 'x-axis', show: true },
-			{ label: 'CPU', show: true, width: 2 },
-			{ label: 'Memory', show: true, width: 2 },
-		];
-
-		it('dims the other series and thickens the highlighted one', async () => {
-			const user = userEvent.setup();
-			const plot = createMockPlot(series());
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('highlight-1'));
-
-			expect(plot.series[1].alpha).toBe(1);
-			expect(plot.series[1].width).toBe(3.2);
-			expect(plot.series[2].alpha).toBe(0.16);
-			expect(plot.series[2].width).toBe(2);
-			// Only the stroke changed, so the cached paths are reused.
-			expect(plot.redraw).toHaveBeenCalledWith(false);
-		});
-
-		it('restores every series when the highlight is cleared', async () => {
-			const user = userEvent.setup();
-			const plot = createMockPlot(series());
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('highlight-1'));
-			await user.click(screen.getByTestId('clear-highlight'));
-
-			expect(plot.series[1].alpha).toBe(1);
-			expect(plot.series[1].width).toBe(2);
-			expect(plot.series[2].alpha).toBe(1);
-			expect(plot.series[2].width).toBe(2);
-		});
-
-		it('drops the dim when the highlighted series is hidden', async () => {
-			const user = userEvent.setup();
-			const plot = createMockPlot(series());
-			// The mock's setSeries doesn't mutate, so mirror what uPlot would do.
-			(plot.setSeries as jest.Mock).mockImplementation(
-				(index: number, opts: { show?: boolean }) => {
-					if (typeof opts.show === 'boolean') {
-						(plot.series[index] as MockSeries).show = opts.show;
-					}
-				},
-			);
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('highlight-1'));
-			await user.click(screen.getByTestId('toggle-on-off-1'));
-
-			// Otherwise every remaining series stays faded and the panel reads as
-			// an isolation instead of one series being excluded.
-			expect(plot.series[2].alpha).toBe(1);
-			expect(plot.series[2].width).toBe(2);
-		});
-
-		it('keeps the dim when a different series is hidden', async () => {
-			const user = userEvent.setup();
-			const plot = createMockPlot(series());
-			(plot.setSeries as jest.Mock).mockImplementation(
-				(index: number, opts: { show?: boolean }) => {
-					if (typeof opts.show === 'boolean') {
-						(plot.series[index] as MockSeries).show = opts.show;
-					}
-				},
-			);
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('highlight-1'));
-			await user.click(screen.getByTestId('toggle-on-off-2'));
-
-			expect(plot.series[1].alpha).toBe(1);
-			expect(plot.series[2].alpha).toBe(0.16);
-		});
-
-		it('leaves visibility untouched', async () => {
-			const user = userEvent.setup();
-			const plot = createMockPlot(series());
-
-			render(
-				<PlotContextProvider>
-					<TestComponent plot={plot} id="widget-123" shouldSaveSelectionPreference />
-				</PlotContextProvider>,
-			);
-
-			await user.click(screen.getByTestId('init'));
-			await user.click(screen.getByTestId('highlight-1'));
-
-			expect(plot.setSeries).not.toHaveBeenCalled();
-			expect(mockUpdateSeriesVisibilityToLocalStorage).not.toHaveBeenCalled();
-		});
-	});
 });

frontend/src/lib/uPlotV2/hooks/__tests__/useLegendActions.test.ts

@@ -11,12 +11,10 @@ const mockUsePlotContext = usePlotContext as jest.MockedFunction<
 describe('useLegendActions', () => {
 	let onToggleSeriesVisibility: jest.Mock;
 	let onToggleSeriesOnOff: jest.Mock;
-	let onShowOnlySeries: jest.Mock;
-	let onShowAllSeries: jest.Mock;
-	let onFocusSeries: jest.Mock;
-	let onHighlightSeries: jest.Mock;
+	let onFocusSeriesPlot: jest.Mock;
 	let setPlotContextInitialState: jest.Mock;
 	let syncSeriesVisibilityToLocalStorage: jest.Mock;
+	let setFocusedSeriesIndexMock: jest.Mock;
 	let cancelAnimationFrameSpy: jest.SpyInstance<void, [handle: number]>;
 
 	beforeAll(() => {
@@ -39,20 +37,15 @@ describe('useLegendActions', () => {
 	beforeEach(() => {
 		onToggleSeriesVisibility = jest.fn();
 		onToggleSeriesOnOff = jest.fn();
-		onShowOnlySeries = jest.fn();
-		onShowAllSeries = jest.fn();
-		onFocusSeries = jest.fn();
-		onHighlightSeries = jest.fn();
+		onFocusSeriesPlot = jest.fn();
 		setPlotContextInitialState = jest.fn();
 		syncSeriesVisibilityToLocalStorage = jest.fn();
+		setFocusedSeriesIndexMock = jest.fn();
 
 		mockUsePlotContext.mockReturnValue({
 			onToggleSeriesVisibility,
 			onToggleSeriesOnOff,
-			onShowOnlySeries,
-			onShowAllSeries,
-			onFocusSeries,
-			onHighlightSeries,
+			onFocusSeries: onFocusSeriesPlot,
 			setPlotContextInitialState,
 			syncSeriesVisibilityToLocalStorage,
 		});
@@ -60,65 +53,149 @@ describe('useLegendActions', () => {
 		cancelAnimationFrameSpy.mockClear();
 	});
 
-	describe('visibility actions', () => {
-		it('toggles a single series on row click', () => {
-			const { result } = renderHook(() => useLegendActions());
+	const createMouseEvent = (options: {
+		legendItemId?: number;
+		isMarker?: boolean;
+	}): any => {
+		const { legendItemId, isMarker = false } = options;
 
-			result.current.onToggleSeries(2);
+		return {
+			target: {
+				dataset: {
+					...(isMarker ? { isLegendMarker: 'true' } : {}),
+				},
+				closest: jest.fn(() =>
+					legendItemId !== undefined
+						? { dataset: { legendItemId: String(legendItemId) } }
+						: null,
+				),
+			},
+		};
+	};
 
-			expect(onToggleSeriesOnOff).toHaveBeenCalledWith(2);
-			// The row must never isolate — that is what "Only" is for.
+	describe('onLegendClick', () => {
+		it('toggles series visibility when clicking on legend label', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendClick(createMouseEvent({ legendItemId: 0 }));
+
+			expect(onToggleSeriesVisibility).toHaveBeenCalledTimes(1);
+			expect(onToggleSeriesVisibility).toHaveBeenCalledWith(0);
+			expect(onToggleSeriesOnOff).not.toHaveBeenCalled();
+		});
+
+		it('toggles series on/off when clicking on marker', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendClick(
+				createMouseEvent({ legendItemId: 0, isMarker: true }),
+			);
+
+			expect(onToggleSeriesOnOff).toHaveBeenCalledTimes(1);
+			expect(onToggleSeriesOnOff).toHaveBeenCalledWith(0);
 			expect(onToggleSeriesVisibility).not.toHaveBeenCalled();
 		});
 
-		it('forwards the Only and All actions to the plot', () => {
-			const { result } = renderHook(() => useLegendActions());
+		it('does nothing when click target is not inside a legend item', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
 
-			result.current.onShowOnlySeries(1);
-			result.current.onShowAllSeries();
+			result.current.onLegendClick(createMouseEvent({}));
 
-			expect(onShowOnlySeries).toHaveBeenCalledWith(1);
-			expect(onShowAllSeries).toHaveBeenCalled();
+			expect(onToggleSeriesOnOff).not.toHaveBeenCalled();
+			expect(onToggleSeriesVisibility).not.toHaveBeenCalled();
 		});
 	});
 
-	describe('hover highlight', () => {
-		it('highlights the hovered series', () => {
-			const { result } = renderHook(() => useLegendActions());
+	describe('onFocusSeries', () => {
+		it('schedules focus update and calls plot focus handler via mouse move', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
 
-			result.current.onHoverSeries(2);
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 0 }));
 
-			expect(onHighlightSeries).toHaveBeenCalledWith(2);
+			expect(setFocusedSeriesIndexMock).toHaveBeenCalledWith(0);
+			expect(onFocusSeriesPlot).toHaveBeenCalledWith(0);
 		});
 
-		it('clears the highlight on leave', () => {
-			const { result } = renderHook(() => useLegendActions());
+		it('cancels previous animation frame before scheduling new one on subsequent mouse moves', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
 
-			result.current.onHoverSeries(null);
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 0 }));
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 1 }));
 
-			expect(onHighlightSeries).toHaveBeenCalledWith(null);
-		});
-
-		it('coalesces rapid hovers into one frame', () => {
-			const { result } = renderHook(() => useLegendActions());
-
-			result.current.onHoverSeries(1);
-			result.current.onHoverSeries(2);
-
-			// Each new hover cancels the frame the previous one queued.
 			expect(cancelAnimationFrameSpy).toHaveBeenCalled();
 		});
+	});
 
-		it('cancels a pending highlight frame on unmount', () => {
-			jest
-				.spyOn(global, 'requestAnimationFrame')
-				.mockImplementation((): number => 7);
+	describe('onLegendMouseMove', () => {
+		it('focuses new series when hovering over different legend item', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: 0,
+				}),
+			);
 
-			const { result, unmount } = renderHook(() => useLegendActions());
-			result.current.onHoverSeries(1);
-			unmount();
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 1 }));
 
-			expect(cancelAnimationFrameSpy).toHaveBeenCalledWith(7);
+			expect(setFocusedSeriesIndexMock).toHaveBeenCalledWith(1);
+			expect(onFocusSeriesPlot).toHaveBeenCalledWith(1);
+		});
+
+		it('does nothing when hovering over already focused series', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: 1,
+				}),
+			);
+
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 1 }));
+
+			expect(setFocusedSeriesIndexMock).not.toHaveBeenCalled();
+			expect(onFocusSeriesPlot).not.toHaveBeenCalled();
+		});
+	});
+
+	describe('onLegendMouseLeave', () => {
+		it('cancels pending animation frame and clears focus state', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 0 }));
+			result.current.onLegendMouseLeave();
+
+			expect(cancelAnimationFrameSpy).toHaveBeenCalled();
+			expect(setFocusedSeriesIndexMock).toHaveBeenCalledWith(null);
+			expect(onFocusSeriesPlot).toHaveBeenCalledWith(null);
 		});
 	});
 });

frontend/src/lib/uPlotV2/hooks/useLegendActions.ts

@@ -1,54 +1,117 @@
-import { useCallback, useEffect, useRef } from 'react';
+import {
+	Dispatch,
+	SetStateAction,
+	useCallback,
+	useEffect,
+	useRef,
+} from 'react';
 import { usePlotContext } from 'lib/uPlotV2/context/PlotContext';
 
-export interface UseLegendActionsResult {
-	onToggleSeries: (seriesIndex: number) => void;
-	/** Show this series alone. */
-	onShowOnlySeries: (seriesIndex: number) => void;
-	/** Leave the narrowed selection and show every series. */
-	onShowAllSeries: () => void;
-	/** null clears the highlight. */
-	onHoverSeries: (seriesIndex: number | null) => void;
-}
-
-/**
- * Legend interactions, bound to the plot through PlotContext. Hover is coalesced
- * to one chart redraw per frame.
- */
-export function useLegendActions(): UseLegendActionsResult {
+export function useLegendActions({
+	setFocusedSeriesIndex,
+	focusedSeriesIndex,
+}: {
+	setFocusedSeriesIndex: Dispatch<SetStateAction<number | null>>;
+	focusedSeriesIndex: number | null;
+}): {
+	onLegendClick: (e: React.MouseEvent<HTMLDivElement>) => void;
+	onFocusSeries: (seriesIndex: number | null) => void;
+	onLegendMouseMove: (e: React.MouseEvent<HTMLDivElement>) => void;
+	onLegendMouseLeave: () => void;
+} {
 	const {
+		onFocusSeries: onFocusSeriesPlot,
 		onToggleSeriesOnOff,
-		onShowOnlySeries,
-		onShowAllSeries,
-		onHighlightSeries,
+		onToggleSeriesVisibility,
 	} = usePlotContext();
 
-	const rafIdRef = useRef<number | null>(null);
+	const rafId = useRef<number | null>(null); // requestAnimationFrame id
 
-	const cancelPendingHighlight = useCallback((): void => {
-		if (rafIdRef.current != null) {
-			cancelAnimationFrame(rafIdRef.current);
-			rafIdRef.current = null;
-		}
-	}, []);
+	const getLegendItemIdFromEvent = useCallback(
+		(e: React.MouseEvent<HTMLDivElement>): string | undefined => {
+			const target = e.target as HTMLElement | null;
+			if (!target) {
+				return undefined;
+			}
 
-	const onHoverSeries = useCallback(
-		(seriesIndex: number | null): void => {
-			cancelPendingHighlight();
-			rafIdRef.current = requestAnimationFrame(() => {
-				rafIdRef.current = null;
-				onHighlightSeries(seriesIndex);
-			});
+			const legendItemElement = target.closest<HTMLElement>(
+				'[data-legend-item-id]',
+			);
+
+			return legendItemElement?.dataset.legendItemId;
 		},
-		[cancelPendingHighlight, onHighlightSeries],
+		[],
 	);
 
-	useEffect(() => cancelPendingHighlight, [cancelPendingHighlight]);
+	const onLegendClick = useCallback(
+		(e: React.MouseEvent<HTMLDivElement>): void => {
+			const legendItemId = getLegendItemIdFromEvent(e);
+			if (!legendItemId) {
+				return;
+			}
+			const isLegendMarker = (e.target as HTMLElement).dataset.isLegendMarker;
+			const seriesIndex = Number(legendItemId);
 
+			if (isLegendMarker) {
+				onToggleSeriesOnOff(seriesIndex);
+				return;
+			}
+
+			onToggleSeriesVisibility(seriesIndex);
+		},
+		[onToggleSeriesVisibility, onToggleSeriesOnOff, getLegendItemIdFromEvent],
+	);
+
+	const onFocusSeries = useCallback(
+		(seriesIndex: number | null): void => {
+			if (rafId.current != null) {
+				cancelAnimationFrame(rafId.current);
+			}
+			rafId.current = requestAnimationFrame(() => {
+				setFocusedSeriesIndex(seriesIndex);
+				onFocusSeriesPlot(seriesIndex);
+			});
+		},
+		// eslint-disable-next-line react-hooks/exhaustive-deps
+		[onFocusSeriesPlot],
+	);
+
+	const onLegendMouseMove = (e: React.MouseEvent<HTMLDivElement>): void => {
+		const legendItemId = getLegendItemIdFromEvent(e);
+		const seriesIndex = legendItemId ? Number(legendItemId) : null;
+		if (seriesIndex === focusedSeriesIndex) {
+			return;
+		}
+		onFocusSeries(seriesIndex);
+	};
+
+	const onLegendMouseLeave = useCallback(
+		(): void => {
+			// Cancel any pending RAF from handleFocusSeries to prevent race condition
+			if (rafId.current != null) {
+				cancelAnimationFrame(rafId.current);
+				rafId.current = null;
+			}
+			setFocusedSeriesIndex(null);
+			onFocusSeries(null);
+		},
+		// eslint-disable-next-line react-hooks/exhaustive-deps
+		[onFocusSeries],
+	);
+
+	// Cleanup pending animation frames on unmount
+	useEffect(
+		() => (): void => {
+			if (rafId.current != null) {
+				cancelAnimationFrame(rafId.current);
+			}
+		},
+		[],
+	);
 	return {
-		onToggleSeries: onToggleSeriesOnOff,
-		onShowOnlySeries,
-		onShowAllSeries,
-		onHoverSeries,
+		onLegendClick,
+		onFocusSeries,
+		onLegendMouseMove,
+		onLegendMouseLeave,
 	};
 }

frontend/src/lib/visualization/charts/Pie/Pie.tsx

@@ -45,10 +45,9 @@ export default function Pie({
 		visibleData,
 		legendItems,
 		focusedSeriesIndex,
-		onToggleSeries,
-		onShowOnlySeries,
-		onShowAllSeries,
-		onHoverSeries,
+		onLegendClick,
+		onLegendMouseMove,
+		onLegendMouseLeave,
 	} = usePieInteractions(data, id);
 
 	const {
@@ -228,10 +227,9 @@ export default function Pie({
 					position={position}
 					averageLegendWidth={averageLegendWidth}
 					focusedSeriesIndex={focusedSeriesIndex}
-					onToggleSeries={onToggleSeries}
-					onShowOnlySeries={onShowOnlySeries}
-					onShowAllSeries={onShowAllSeries}
-					onHoverSeries={onHoverSeries}
+					onClick={onLegendClick}
+					onMouseMove={onLegendMouseMove}
+					onMouseLeave={onLegendMouseLeave}
 				/>
 			</div>
 		</div>

frontend/src/lib/visualization/charts/Pie/__tests__/Pie.test.tsx

@@ -100,29 +100,17 @@ describe('Pie', () => {
 		expect(screen.getByTestId('pie')).toHaveStyle({ flexDirection: 'column' });
 	});
 
-	it('isolates a slice when its legend row is clicked with everything showing', () => {
+	it('hides a slice when its legend marker is clicked', () => {
 		renderPie();
 		const svg = screen.getByTestId('pie').querySelector('svg') as SVGElement;
 		expect(svg.querySelectorAll('path')).toHaveLength(3);
 
-		fireEvent.click(screen.getByTestId('legend-item-1'));
-
-		// Nothing visible to exclude, so the click isolates: one arc left.
-		expect(svg.querySelectorAll('path')).toHaveLength(1);
-	});
-
-	it('excludes a slice when its legend row is clicked with others already hidden', () => {
-		renderPie();
-		const svg = screen.getByTestId('pie').querySelector('svg') as SVGElement;
-
-		// Isolate, then add a second slice back, so nothing is isolated any more.
-		fireEvent.click(screen.getByTestId('legend-item-1'));
-		fireEvent.click(screen.getByTestId('legend-item-0'));
-		expect(svg.querySelectorAll('path')).toHaveLength(2);
-
-		fireEvent.click(screen.getByTestId('legend-item-0'));
+		const marker = document.querySelector(
+			'[data-legend-item-id="1"] [data-is-legend-marker="true"]',
+		) as HTMLElement;
+		fireEvent.click(marker);
 
 		// One slice hidden → one fewer arc drawn.
-		expect(svg.querySelectorAll('path')).toHaveLength(1);
+		expect(svg.querySelectorAll('path')).toHaveLength(2);
 	});
 });

frontend/src/lib/visualization/charts/__tests__/utils.test.ts

@@ -1,9 +1,6 @@
 import { LegendPosition } from 'lib/uPlotV2/components/types';
 
-import {
-	calculateAverageLegendWidth,
-	calculateChartDimensions,
-} from 'lib/visualization/charts/utils';
+import { calculateChartDimensions } from 'lib/visualization/charts/utils';
 
 const labels = (count: number, length = 20): string[] =>
 	Array.from({ length: count }, (_, i) =>
@@ -52,104 +49,63 @@ describe('calculateChartDimensions', () => {
 		expect(dims.width).toBe(784);
 	});
 
-	it('RIGHT: never shrinks the column below the floor that fits its chrome', () => {
+	it('RIGHT: never shrinks the column below the 150px floor', () => {
 		const dims = calculateChartDimensions({
 			containerWidth: 1000,
 			containerHeight: 400,
 			legendConfig: { position: LegendPosition.RIGHT },
 			seriesLabels: labels(3, 3),
 		});
-		expect(dims.legendWidth).toBe(190);
-		expect(dims.width).toBe(810);
+		expect(dims.legendWidth).toBe(150);
+		expect(dims.width).toBe(850);
 	});
 
-	it('RIGHT: on a narrow container the legend keeps its chrome, up to half the width', () => {
+	it('RIGHT: on a narrow container the legend never takes more than 40% of the width', () => {
 		const dims = calculateChartDimensions({
 			containerWidth: 300,
 			containerHeight: 400,
 			legendConfig: { position: LegendPosition.RIGHT },
 			seriesLabels: labels(10, 40),
 		});
-		// 40% is 120px, too narrow for the column's own toolbar.
-		expect(dims.legendWidth).toBe(150);
-		expect(dims.width).toBe(150);
+		expect(dims.legendWidth).toBe(120);
+		expect(dims.width).toBe(180);
 	});
 
-	it('RIGHT: stops widening the column once the panel is narrower than its chrome', () => {
-		const dims = calculateChartDimensions({
-			containerWidth: 200,
-			containerHeight: 400,
-			legendConfig: { position: LegendPosition.RIGHT },
-			seriesLabels: labels(10, 40),
-		});
-		expect(dims.legendWidth).toBe(100);
-		expect(dims.width).toBe(100);
-	});
-
-	it('BOTTOM: items that fit one row reserve exactly one row', () => {
+	it('BOTTOM: a single row of items reserves one legend row', () => {
 		const dims = calculateChartDimensions({
 			containerWidth: 1000,
 			containerHeight: 500,
 			legendConfig: { position: LegendPosition.BOTTOM },
 			seriesLabels: labels(3),
 		});
-		// One 28px row + the wrapper's 12px bottom padding.
+		// One row = line height (28) + padding (12).
 		expect(dims.legendHeight).toBe(40);
 		expect(dims.height).toBe(460);
 		expect(dims.legendWidth).toBe(1000);
 	});
 
-	it('BOTTOM: more items than one row reserve exactly two rows', () => {
+	it('BOTTOM: many items cap at two rows on a tall container', () => {
 		const dims = calculateChartDimensions({
 			containerWidth: 1000,
 			containerHeight: 500,
 			legendConfig: { position: LegendPosition.BOTTOM },
 			seriesLabels: labels(40),
 		});
-		// Two 28px rows + the 2px row gap + 12px bottom padding — no room for a
-		// clipped third row, and none left over.
-		expect(dims.legendHeight).toBe(70);
-		expect(dims.height).toBe(430);
+		// Two rows = 2 * 40 - 12 (no trailing padding) = 68, under the 80px cap.
+		expect(dims.legendHeight).toBe(68);
+		expect(dims.height).toBe(432);
 	});
 
-	it('BOTTOM: items one past a row still reserve two rows', () => {
-		// 1000px wide fits 5 of these per row, so 6 items need a second row.
+	it('BOTTOM: on a short container the legend never takes more than 30% of the height', () => {
 		const dims = calculateChartDimensions({
 			containerWidth: 1000,
-			containerHeight: 500,
-			legendConfig: { position: LegendPosition.BOTTOM },
-			seriesLabels: labels(6),
-		});
-		expect(dims.legendHeight).toBe(70);
-	});
-
-	it('BOTTOM: drops to a single row rather than take half a short panel', () => {
-		const dims = calculateChartDimensions({
-			containerWidth: 1000,
-			containerHeight: 120,
+			containerHeight: 160,
 			legendConfig: { position: LegendPosition.BOTTOM },
 			seriesLabels: labels(40),
 		});
-		// A whole row goes rather than a clipped one being reserved.
-		expect(dims.legendHeight).toBe(40);
-		expect(dims.height).toBe(80);
-	});
-});
-
-describe('calculateAverageLegendWidth', () => {
-	it('scales with the label length', () => {
-		// 16px of chrome + 30 chars at 8px.
-		expect(calculateAverageLegendWidth(labels(4, 30))).toBe(256);
-	});
-
-	it('never drops below what a row needs to contain its hover actions', () => {
-		// Short or unnamed series would otherwise size a column the actions
-		// escape, spilling over the item beside it.
-		expect(calculateAverageLegendWidth(['cpu'])).toBe(110);
-		expect(calculateAverageLegendWidth([''])).toBe(110);
-	});
-
-	it('keeps the default estimate when there are no labels to measure', () => {
-		expect(calculateAverageLegendWidth([])).toBe(120);
+		// Without the height-relative cap the legend would take 68px of a 160px
+		// panel and the chart (pie especially) collapses to a sliver.
+		expect(dims.legendHeight).toBe(48); // 30% of 160
+		expect(dims.height).toBe(112);
 	});
 });

frontend/src/lib/visualization/charts/utils.ts

@@ -1,10 +1,4 @@
-import {
-	LEGEND_MAX_BOTTOM_ROWS,
-	MIN_LEGEND_ITEM_WIDTH,
-	LEGEND_ROW_GAP,
-	LEGEND_ROW_HEIGHT,
-	MAX_LEGEND_WIDTH,
-} from 'lib/uPlotV2/components/Legend/constants';
+import { MAX_LEGEND_WIDTH } from 'lib/uPlotV2/components/Legend/Legend';
 import { LegendConfig, LegendPosition } from 'lib/uPlotV2/components/types';
 export interface ChartDimensions {
 	width: number;
@@ -19,31 +13,22 @@ const LEGEND_WIDTH_PERCENTILE = 0.85;
 const DEFAULT_AVG_LABEL_LENGTH = 15;
 const BASE_LEGEND_WIDTH = 16;
 const LEGEND_PADDING = 12;
-// Two rows are worth having, but not at the cost of half the panel.
-const MAX_SHORT_PANEL_LEGEND_RATIO = 0.5;
+const LEGEND_LINE_HEIGHT = 28;
 
 // RIGHT legend is a vertical column with its own width budget (cap protects the donut).
 const MAX_RIGHT_LEGEND_WIDTH = 320;
 const RIGHT_LEGEND_WIDTH_RATIO = 0.4;
 // Column padding + copy button, not covered by the text-length estimate.
 const RIGHT_LEGEND_RESERVED_WIDTH = 40;
-// Fits the toolbar's "Showing N of M series" readout plus the wrapper padding.
-const MIN_RIGHT_LEGEND_WIDTH = 190;
-// Past this the split inverts and the chart becomes the smaller half.
-const RIGHT_LEGEND_FLOOR_RATIO = 0.5;
 
 /**
  * Calculates the average width of the legend items based on the labels of the series.
- * Never returns less than a legend row needs to hold its own hover actions.
  * @param legends - The labels of the series.
  * @returns The average width of the legend items.
  */
 export function calculateAverageLegendWidth(legends: string[]): number {
 	if (legends.length === 0) {
-		return Math.max(
-			MIN_LEGEND_ITEM_WIDTH,
-			DEFAULT_AVG_LABEL_LENGTH * AVG_CHAR_WIDTH,
-		);
+		return DEFAULT_AVG_LABEL_LENGTH * AVG_CHAR_WIDTH;
 	}
 
 	const lengths = legends.map((l) => l.length).sort((a, b) => a - b);
@@ -51,10 +36,7 @@ export function calculateAverageLegendWidth(legends: string[]): number {
 	const index = Math.ceil(LEGEND_WIDTH_PERCENTILE * lengths.length) - 1;
 	const percentileLength = lengths[Math.max(0, index)];
 
-	return Math.max(
-		MIN_LEGEND_ITEM_WIDTH,
-		BASE_LEGEND_WIDTH + percentileLength * AVG_CHAR_WIDTH,
-	);
+	return BASE_LEGEND_WIDTH + percentileLength * AVG_CHAR_WIDTH;
 }
 
 /**
@@ -70,9 +52,7 @@ export function calculateAverageLegendWidth(legends: string[]): number {
  *   - Chart width is `containerWidth - legendWidth`.
  * - BOTTOM legend:
  *   - Computes how many items fit per row, then uses at most 2 rows.
- *   - `legendHeight` is exactly those rows plus the wrapper's bottom padding, so
- *     the rectangle never clips a row or reserves space for half of one. Two
- *     rows that would take half a short panel fall back to one row.
+ *   - `legendHeight` is derived from row count, capped by both a fixed pixel max and a % of container height.
  *   - Chart height is `containerHeight - legendHeight`, never below 0.
  * - `legendsPerSet` is the number of legend items that fit horizontally, based on the same text-width approximation.
  *
@@ -120,14 +100,9 @@ export function calculateChartDimensions({
 			MAX_RIGHT_LEGEND_WIDTH,
 			containerWidth * RIGHT_LEGEND_WIDTH_RATIO,
 		);
-		// The column's chrome outranks the 40% share on a narrow panel.
-		const floorWidth = Math.min(
-			MIN_RIGHT_LEGEND_WIDTH,
-			containerWidth * RIGHT_LEGEND_FLOOR_RATIO,
-		);
 		const rightLegendWidth = Math.min(
-			Math.max(MIN_RIGHT_LEGEND_WIDTH, desiredLegendWidth),
-			Math.max(floorWidth, maxRightLegendWidth),
+			Math.max(150, desiredLegendWidth),
+			maxRightLegendWidth,
 		);
 
 		return {
@@ -140,6 +115,8 @@ export function calculateChartDimensions({
 		};
 	}
 
+	const legendRowHeight = LEGEND_LINE_HEIGHT + LEGEND_PADDING;
+
 	const legendItemWidth = Math.ceil(
 		Math.min(approxLegendItemWidth, MAX_LEGEND_WIDTH),
 	);
@@ -148,30 +125,30 @@ export function calculateChartDimensions({
 		Math.floor((containerWidth - LEGEND_PADDING * 2) / legendItemWidth),
 	);
 
-	// The wrapper's bottom padding is inside this height (border-box).
-	const heightForRows = (rowCount: number): number =>
-		rowCount * LEGEND_ROW_HEIGHT +
-		(rowCount - 1) * LEGEND_ROW_GAP +
-		LEGEND_PADDING;
-
-	const neededRowCount = Math.max(
-		1,
-		Math.min(
-			LEGEND_MAX_BOTTOM_ROWS,
-			Math.ceil(legendItemCount / legendItemsPerRow),
-		),
+	const legendRowCount = Math.min(
+		2,
+		Math.ceil(legendItemCount / legendItemsPerRow),
 	);
 
-	// Without this, short grid panels hand most of their area to the legend and
-	// the chart — the pie donut especially — collapses to a sliver. Dropping a
-	// whole row beats clipping one.
-	const legendRowCount =
-		neededRowCount > 1 &&
-		heightForRows(neededRowCount) > containerHeight * MAX_SHORT_PANEL_LEGEND_RATIO
-			? 1
-			: neededRowCount;
+	const idealBottomLegendHeight =
+		legendRowCount > 1
+			? legendRowCount * legendRowHeight - LEGEND_PADDING
+			: legendRowHeight;
 
-	const bottomLegendHeight = heightForRows(legendRowCount);
+	// Cap at two rows / 80px, and never more than 30% of the container height
+	// (the doc above always promised the %-cap; without it, short grid panels
+	// hand most of their area to the legend and the chart — the pie donut
+	// especially — collapses to a sliver). 30% mirrors the RIGHT-legend width cap.
+	const maxAllowedLegendHeight = Math.min(
+		2 * legendRowHeight,
+		80,
+		Math.floor(containerHeight * 0.3),
+	);
+
+	const bottomLegendHeight = Math.min(
+		idealBottomLegendHeight,
+		maxAllowedLegendHeight,
+	);
 
 	return {
 		width: containerWidth,

frontend/src/lib/visualization/hooks/__tests__/usePieInteractions.test.tsx

@@ -3,6 +3,7 @@ import {
 	getStoredSeriesVisibility,
 	updateSeriesVisibilityToLocalStorage,
 } from 'lib/visualization/panels/utils/legendVisibilityUtils';
+import type { MouseEvent } from 'react';
 
 import { PieSlice } from 'lib/visualization/charts/types';
 import { usePieInteractions } from 'lib/visualization/hooks/usePieInteractions';
@@ -23,6 +24,22 @@ const DATA: PieSlice[] = [
 	{ label: 'checkout', value: 40, color: '#c' },
 ];
 
+// Builds a fake legend click/move event: `e.target.closest('[data-legend-item-id]')`
+// resolves to the item at `index`, and `e.target.dataset.isLegendMarker` flags marker clicks.
+function legendEvent(
+	index: number | null,
+	isMarker = false,
+): MouseEvent<HTMLDivElement> {
+	const itemEl =
+		index == null ? null : { dataset: { legendItemId: String(index) } };
+	return {
+		target: {
+			closest: (): unknown => itemEl,
+			dataset: { isLegendMarker: isMarker ? 'true' : undefined },
+		},
+	} as unknown as MouseEvent<HTMLDivElement>;
+}
+
 describe('usePieInteractions', () => {
 	beforeEach(() => {
 		mockGetStored.mockReturnValue(null);
@@ -42,11 +59,11 @@ describe('usePieInteractions', () => {
 		expect(result.current.active).toBeNull();
 	});
 
-	describe('row toggle', () => {
+	describe('marker click (toggle one)', () => {
 		it('hides then unhides the clicked slice', () => {
 			const { result } = renderHook(() => usePieInteractions(DATA, 'panel-1'));
 
-			act(() => result.current.onToggleSeries(1));
+			act(() => result.current.onLegendClick(legendEvent(1, true)));
 
 			expect(result.current.visibleData).toStrictEqual([DATA[0], DATA[2]]);
 			expect(result.current.legendItems[1].show).toBe(false);
@@ -56,30 +73,18 @@ describe('usePieInteractions', () => {
 				{ label: 'checkout', show: true },
 			]);
 
-			act(() => result.current.onToggleSeries(1));
+			act(() => result.current.onLegendClick(legendEvent(1, true)));
 
 			expect(result.current.visibleData).toStrictEqual(DATA);
 			expect(result.current.legendItems[1].show).toBe(true);
 		});
 	});
 
-	describe('the last slice showing', () => {
-		it('cannot be hidden', () => {
+	describe('label click (isolate / reset)', () => {
+		it('isolates the clicked slice, then resets on a second click', () => {
 			const { result } = renderHook(() => usePieInteractions(DATA));
 
-			act(() => result.current.onShowOnlySeries(0));
-			act(() => result.current.onToggleSeries(0));
-
-			// An empty donut is never a state worth reaching.
-			expect(result.current.visibleData).toStrictEqual([DATA[0]]);
-		});
-	});
-
-	describe('Only', () => {
-		it('isolates the slice', () => {
-			const { result } = renderHook(() => usePieInteractions(DATA));
-
-			act(() => result.current.onShowOnlySeries(0));
+			act(() => result.current.onLegendClick(legendEvent(0, false)));
 
 			expect(result.current.visibleData).toStrictEqual([DATA[0]]);
 			expect(result.current.legendItems.map((i) => i.show)).toStrictEqual([
@@ -87,24 +92,8 @@ describe('usePieInteractions', () => {
 				false,
 				false,
 			]);
-		});
 
-		it('switches the isolation to another slice', () => {
-			const { result } = renderHook(() => usePieInteractions(DATA));
-
-			act(() => result.current.onShowOnlySeries(0));
-			act(() => result.current.onShowOnlySeries(2));
-
-			expect(result.current.visibleData).toStrictEqual([DATA[2]]);
-		});
-	});
-
-	describe('All', () => {
-		it('brings every hidden slice back', () => {
-			const { result } = renderHook(() => usePieInteractions(DATA));
-
-			act(() => result.current.onShowOnlySeries(0));
-			act(() => result.current.onShowAllSeries());
+			act(() => result.current.onLegendClick(legendEvent(0, false)));
 
 			expect(result.current.visibleData).toStrictEqual(DATA);
 		});
@@ -114,23 +103,11 @@ describe('usePieInteractions', () => {
 		it('focuses the hovered slice and clears on leave', () => {
 			const { result } = renderHook(() => usePieInteractions(DATA));
 
-			act(() => result.current.onHoverSeries(2));
+			act(() => result.current.onLegendMouseMove(legendEvent(2)));
 			expect(result.current.active).toStrictEqual(DATA[2]);
 			expect(result.current.focusedSeriesIndex).toBe(2);
 
-			act(() => result.current.onHoverSeries(null));
-			expect(result.current.active).toBeNull();
-			expect(result.current.focusedSeriesIndex).toBeNull();
-		});
-
-		it('drops the focus when the focused slice is hidden', () => {
-			const { result } = renderHook(() => usePieInteractions(DATA));
-
-			act(() => result.current.onHoverSeries(1));
-			act(() => result.current.onToggleSeries(1));
-
-			// Otherwise every remaining arc stays dimmed and the donut reads as an
-			// isolation instead of one slice being excluded.
+			act(() => result.current.onLegendMouseLeave());
 			expect(result.current.active).toBeNull();
 			expect(result.current.focusedSeriesIndex).toBeNull();
 		});
@@ -138,8 +115,8 @@ describe('usePieInteractions', () => {
 		it('does not focus a hidden slice', () => {
 			const { result } = renderHook(() => usePieInteractions(DATA));
 
-			act(() => result.current.onToggleSeries(1));
-			act(() => result.current.onHoverSeries(1));
+			act(() => result.current.onLegendClick(legendEvent(1, true))); // hide cart
+			act(() => result.current.onLegendMouseMove(legendEvent(1)));
 
 			expect(result.current.active).toBeNull();
 		});
@@ -148,7 +125,7 @@ describe('usePieInteractions', () => {
 	describe('persistence', () => {
 		it('does not write to storage when no id is provided', () => {
 			const { result } = renderHook(() => usePieInteractions(DATA));
-			act(() => result.current.onToggleSeries(0));
+			act(() => result.current.onLegendClick(legendEvent(0, true)));
 			expect(mockUpdateStored).not.toHaveBeenCalled();
 		});
 

frontend/src/lib/visualization/hooks/usePieInteractions.ts

@@ -1,6 +1,6 @@
 import { LegendItem } from 'lib/uPlotV2/config/types';
-import type { Dispatch, SetStateAction } from 'react';
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import type { Dispatch, MouseEvent, SetStateAction } from 'react';
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 
 import {
 	getStoredSeriesVisibility,
@@ -18,17 +18,27 @@ export interface UsePieInteractionsResult {
 	legendItems: LegendItem[];
 	/** Index of the active slice for the legend's focus highlight, or null. */
 	focusedSeriesIndex: number | null;
-	onToggleSeries: (sliceIndex: number) => void;
-	onShowOnlySeries: (sliceIndex: number) => void;
-	onShowAllSeries: () => void;
-	onHoverSeries: (sliceIndex: number | null) => void;
+	onLegendClick: (e: MouseEvent<HTMLDivElement>) => void;
+	onLegendMouseMove: (e: MouseEvent<HTMLDivElement>) => void;
+	onLegendMouseLeave: () => void;
+}
+
+// Reads the slice index off the nearest `[data-legend-item-id]` ancestor of the
+// event target (the shared Legend tags each item with its seriesIndex).
+function getLegendIndex(e: MouseEvent<HTMLDivElement>): number | null {
+	const el = (e.target as HTMLElement | null)?.closest<HTMLElement>(
+		'[data-legend-item-id]',
+	);
+	const id = el?.dataset.legendItemId;
+	return id != null ? Number(id) : null;
 }
 
 /**
- * Pie interaction + derived state: hover/focus, slice hide/show driven by the
- * shared legend's actions, and persistence of the hidden set to localStorage
- * (keyed by `id`, matched by label) so it survives reloads. Returns the visible
- * slices, legend items, focus index, and the legend handlers.
+ * Pie interaction + derived state: hover/focus, slice hide/unhide (mirroring the
+ * uPlot legend — marker toggles one, label isolates), and persistence of the
+ * hidden set to localStorage (keyed by `id`, matched by label) so it survives
+ * reloads. Returns the visible slices, legend items, focus index, and the
+ * legend container handlers.
  */
 export function usePieInteractions(
 	data: PieSlice[],
@@ -38,6 +48,7 @@ export function usePieInteractions(
 	const [hiddenIndices, setHiddenIndices] = useState<Set<number>>(
 		() => new Set(),
 	);
+	const isolatedIndexRef = useRef<number | null>(null);
 
 	const legendItems = useMemo<LegendItem[]>(
 		() =>
@@ -93,69 +104,65 @@ export function usePieInteractions(
 		[id, data],
 	);
 
-	const onHoverSeries = useCallback(
-		(sliceIndex: number | null): void => {
+	const onLegendMouseMove = useCallback(
+		(e: MouseEvent<HTMLDivElement>): void => {
+			const index = getLegendIndex(e);
 			// Don't focus/dim for hidden slices — they aren't on the donut.
-			setActive(
-				sliceIndex != null && !hiddenIndices.has(sliceIndex)
-					? data[sliceIndex]
-					: null,
-			);
+			setActive(index != null && !hiddenIndices.has(index) ? data[index] : null);
 		},
 		[data, hiddenIndices],
 	);
 
-	const onToggleSeries = useCallback(
-		(sliceIndex: number): void => {
-			const next = new Set(hiddenIndices);
-			if (next.has(sliceIndex)) {
-				next.delete(sliceIndex);
-			} else {
-				// An empty donut is never worth reaching.
-				if (data.length - next.size <= 1) {
-					return;
-				}
-				next.add(sliceIndex);
+	// Marker click toggles just that slice on/off; label click isolates it
+	// (clicking the isolated one again resets to all) — mirrors the uPlot legend.
+	const onLegendClick = useCallback(
+		(e: MouseEvent<HTMLDivElement>): void => {
+			const index = getLegendIndex(e);
+			if (index == null) {
+				return;
 			}
-			applyHidden(next);
-		},
-		[data.length, hiddenIndices, applyHidden],
-	);
+			const isMarker = (e.target as HTMLElement).dataset.isLegendMarker;
 
-	const onShowOnlySeries = useCallback(
-		(sliceIndex: number): void => {
-			const next = new Set<number>();
-			data.forEach((_, index) => {
-				if (index !== sliceIndex) {
+			if (isMarker) {
+				const next = new Set(hiddenIndices);
+				if (next.has(index)) {
+					next.delete(index);
+				} else {
 					next.add(index);
 				}
+				applyHidden(next);
+				return;
+			}
+
+			const isReset = isolatedIndexRef.current === index;
+			isolatedIndexRef.current = isReset ? null : index;
+			if (isReset) {
+				applyHidden(new Set());
+				return;
+			}
+			const next = new Set<number>();
+			data.forEach((_, i) => {
+				if (i !== index) {
+					next.add(i);
+				}
 			});
 			applyHidden(next);
 		},
-		[data, applyHidden],
+		[data, hiddenIndices, applyHidden],
 	);
 
-	const onShowAllSeries = useCallback(
-		(): void => applyHidden(new Set()),
-		[applyHidden],
-	);
+	const onLegendMouseLeave = useCallback((): void => setActive(null), []);
 
-	const activeIndex = active ? data.indexOf(active) : -1;
-	// Left active, a hidden slice keeps every other arc dimmed, which reads as an
-	// isolation rather than as one slice being excluded.
-	const effectiveActive =
-		activeIndex >= 0 && !hiddenIndices.has(activeIndex) ? active : null;
-	const focusedIndex = effectiveActive ? activeIndex : -1;
+	const focusedIndex = active ? data.indexOf(active) : -1;
 
 	return {
-		active: effectiveActive,
+		active,
 		setActive,
 		visibleData,
 		legendItems,
 		focusedSeriesIndex: focusedIndex >= 0 ? focusedIndex : null,
-		onToggleSeries,
-		onShowOnlySeries,
-		onShowAllSeries,
-		onHoverSeries,
+		onLegendClick,
+		onLegendMouseMove,
+		onLegendMouseLeave,
 	};
 }

frontend/src/lib/visualization/layout/ChartLayout/ChartLayout.styles.scss

@@ -29,6 +29,7 @@
 		box-sizing: border-box;
 		min-height: 0;
 		overflow: hidden;
-		padding: 0 12px 12px 12px;
+		padding-left: 12px;
+		padding-bottom: 12px;
 	}
 }

frontend/src/lib/visualization/layout/ChartLayout/ChartLayout.tsx

@@ -1,7 +1,7 @@
 import { useMemo } from 'react';
 import cx from 'classnames';
 import { calculateChartDimensions } from 'lib/visualization/charts/utils';
-import { MAX_LEGEND_WIDTH } from 'lib/uPlotV2/components/Legend/constants';
+import { MAX_LEGEND_WIDTH } from 'lib/uPlotV2/components/Legend/Legend';
 import { LegendConfig, LegendPosition } from 'lib/uPlotV2/components/types';
 import { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
 

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Variables/VariableImpactDialog/VariableImpactDialog.tsx

@@ -19,6 +19,7 @@ const KIND_LABEL: Record<VariableUsage['kind'], string> = {
 	promql: 'PromQL',
 	clickhouse: 'ClickHouse',
 	variable: 'Variable',
+	text: 'Markdown body',
 };
 
 interface VariableImpactDialogProps {

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Variables/__tests__/variableImpactPatch.test.ts

@@ -0,0 +1,49 @@
+import type { DashboardtypesGettableDashboardV2DTO } from 'api/generated/services/sigNoz.schemas';
+
+import { buildVariableImpactPatch } from '../utils/variableImpactPatch';
+import type { VariableUsage } from '../utils/variableUsages';
+
+jest.mock('../variableAdapters', () => ({
+	formModelToDto: (model: unknown): unknown => model,
+}));
+
+const dashboard = {
+	spec: {
+		panels: {
+			runbook: {
+				spec: {
+					display: { name: 'Runbook' },
+					plugin: { kind: 'signoz/TextPanel', spec: { text: 'env {{svc}}' } },
+					queries: [],
+				},
+			},
+		},
+		variables: [],
+	},
+} as unknown as DashboardtypesGettableDashboardV2DTO;
+
+const textUsage: VariableUsage = {
+	id: 'panel:runbook:0',
+	sourceType: 'panel',
+	sourceId: 'runbook',
+	sourceLabel: 'Runbook',
+	kind: 'text',
+	envelopeIndex: 0,
+	currentText: 'env {{svc}}',
+	resultingText: 'env {{zone}}',
+};
+
+describe('buildVariableImpactPatch — text panel bodies', () => {
+	it('replaces the plugin-spec text, never the (empty) queries', () => {
+		const ops = buildVariableImpactPatch(dashboard, [], [textUsage]);
+
+		const panelOps = ops.filter((op) => op.path.includes('/panels/'));
+		expect(panelOps).toStrictEqual([
+			{
+				op: 'replace',
+				path: '/spec/panels/runbook/spec/plugin/spec/text',
+				value: 'env {{zone}}',
+			},
+		]);
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Variables/__tests__/variableUsages.test.ts

@@ -45,6 +45,16 @@ function promqlPanel(name: string, query: string): unknown {
 	};
 }
 
+function textPanel(name: string, text: string): unknown {
+	return {
+		spec: {
+			display: { name },
+			plugin: { kind: 'signoz/TextPanel', spec: { text } },
+			queries: [],
+		},
+	};
+}
+
 function dashboard(
 	panels: Record<string, unknown>,
 	variables: VariableFormModel[],
@@ -99,6 +109,38 @@ describe('findVariableUsages', () => {
 	it('returns nothing for an unreferenced variable', () => {
 		expect(findVariableUsages(dash, 'nope', 'delete')).toStrictEqual([]);
 	});
+
+	describe('text panel bodies (TDD D5)', () => {
+		const textDash = dashboard(
+			{
+				runbook: textPanel(
+					'Runbook',
+					'env {{svc}} / {{.svc}} / [[svc]] / $svc / {{svcx}}',
+				),
+				unrelated: textPanel('Plain', 'no tokens here'),
+			},
+			[variable({ name: 'svc', type: 'QUERY' })],
+		);
+
+		it('finds the body usage and skips bodies without the token', () => {
+			const usages = findVariableUsages(textDash, 'svc', 'rename', 'zone');
+			expect(usages.map((u) => u.id)).toStrictEqual(['panel:runbook:0']);
+			expect(usages[0].kind).toBe('text');
+			expect(usages[0].sourceLabel).toBe('Runbook');
+		});
+
+		it('rewrites all four syntaxes on rename, leaving other names alone', () => {
+			const [usage] = findVariableUsages(textDash, 'svc', 'rename', 'zone');
+			expect(usage.resultingText).toBe(
+				'env {{zone}} / {{.zone}} / [[zone]] / $zone / {{svcx}}',
+			);
+		});
+
+		it('leaves the body for review on delete', () => {
+			const [usage] = findVariableUsages(textDash, 'svc', 'delete');
+			expect(usage.resultingText).toBe(usage.currentText);
+		});
+	});
 });
 
 describe('findApplyUsages', () => {

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Variables/utils/getTextPanelBody.ts

@@ -0,0 +1,16 @@
+import type { DashboardtypesPanelSpecDTO } from 'api/generated/services/sigNoz.schemas';
+import { isStaticPanelKind } from 'pages/DashboardPage/DashboardContainer/Panels/capabilities';
+
+/**
+ * The markdown body of a static (query-less) panel, or null for query kinds.
+ * One localized cast: the plugin-spec union can't be narrowed by a dynamic kind.
+ */
+export function getTextPanelBody(
+	spec: DashboardtypesPanelSpecDTO | undefined,
+): string | null {
+	if (!spec?.plugin || !isStaticPanelKind(spec.plugin.kind)) {
+		return null;
+	}
+	const { text } = spec.plugin.spec as { text?: string };
+	return typeof text === 'string' ? text : null;
+}

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Variables/utils/variableImpactPatch.ts

@@ -107,6 +107,18 @@ export function buildVariableImpactPatch(
 
 	byPanel.forEach((list, panelId) => {
 		const panel = panels[panelId];
+
+		// A static kind's usage edits its markdown body, not a query.
+		const textUsage = list.find((usage) => usage.kind === 'text');
+		if (textUsage) {
+			ops.push({
+				op: 'replace' as DashboardtypesJSONPatchOperationDTO['op'],
+				path: `/spec/panels/${panelId}/spec/plugin/spec/text`,
+				value: textUsage.resultingText,
+			});
+			return;
+		}
+
 		if (!panel?.spec?.queries?.length) {
 			return;
 		}

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Variables/utils/variableUsages.ts

@@ -12,6 +12,7 @@ import {
 } from 'lib/dashboardVariables/variableReference';
 
 import { toQueryEnvelopes } from '../../../queryV5/buildQueryRangeRequest';
+import { getTextPanelBody } from './getTextPanelBody';
 import { dtoToFormModel } from '../variableAdapters';
 
 /** The kind of query text a variable is referenced from. */
@@ -19,7 +20,8 @@ export type VariableUsageKind =
 	| 'builder'
 	| 'promql'
 	| 'clickhouse'
-	| 'variable';
+	| 'variable'
+	| 'text';
 
 export type VariableImpactMode = 'rename' | 'delete' | 'apply';
 
@@ -81,7 +83,7 @@ function computeResultingText(
 		return rewriteVariableReferences(text, variableName, newName);
 	}
 	// delete: only builder filter clauses can be safely auto-stripped; raw PromQL/
-	// ClickHouse and variable queries are left for the user to edit.
+	// ClickHouse, markdown bodies and variable queries are left for the user to edit.
 	return kind === 'builder'
 		? removeVariableFromExpression(text, variableName)
 		: text;
@@ -106,6 +108,31 @@ export function findVariableUsages(
 	const spec = dashboard.spec;
 
 	Object.entries(spec.panels ?? {}).forEach(([panelId, panel]) => {
+		// A static kind references variables from its body, not a query (TDD D5 —
+		// rename must rewrite text bodies too, or it silently orphans the tokens).
+		const textBody = getTextPanelBody(panel?.spec);
+		if (typeof textBody === 'string') {
+			if (textContainsVariableReference(textBody, variableName)) {
+				usages.push({
+					id: `panel:${panelId}:0`,
+					sourceType: 'panel',
+					sourceId: panelId,
+					sourceLabel: panel.spec?.display?.name || panelId,
+					kind: 'text',
+					envelopeIndex: 0,
+					currentText: textBody,
+					resultingText: computeResultingText(
+						'text',
+						textBody,
+						variableName,
+						mode,
+						newName,
+					),
+				});
+			}
+			return;
+		}
+
 		const queries = panel?.spec?.queries;
 		if (!queries?.length) {
 			return;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/ConfigPane.tsx

@@ -5,6 +5,8 @@ import type {
 	DashboardtypesPanelSpecDTO,
 } from 'api/generated/services/sigNoz.schemas';
 import { getPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/registry';
+import { SectionKind } from 'pages/DashboardPage/DashboardContainer/Panels/types/sections';
+import { getSupportedSignals } from 'pages/DashboardPage/DashboardContainer/Panels/capabilities';
 import { resolveSignal } from 'pages/DashboardPage/DashboardContainer/Panels/utils/getBuilderQueries';
 import type { EQueryType } from 'types/common/dashboard';
 
@@ -65,9 +67,16 @@ function ConfigPane({
 }: ConfigPaneProps): JSX.Element {
 	const panelKind = spec.plugin.kind;
 	const definition = getPanelDefinition(panelKind);
-	const sections = definition.sections;
+	// The header toggle belongs with the title and description it hides, so the kind's
+	// declaration still gates it but it renders above, out of the display options.
+	const headerSection = definition.sections.find(
+		(config) => config.kind === SectionKind.PanelHeader,
+	);
+	const sections = definition.sections.filter(
+		(config) => config.kind !== SectionKind.PanelHeader,
+	);
 
-	const signal = resolveSignal(spec.queries, definition.supportedSignals[0]);
+	const signal = resolveSignal(spec.queries, getSupportedSignals(panelKind)[0]);
 
 	// Title/description are just a slice of the spec — edit them through the same
 	// onChangeSpec path the sections use, so there's a single editing surface.
@@ -104,6 +113,23 @@ function ConfigPane({
 						onChange={(e): void => setDisplayField('description', e.target.value)}
 					/>
 				</div>
+
+				{headerSection && (
+					<SectionSlot
+						bare
+						config={headerSection}
+						spec={spec}
+						onChangeSpec={onChangeSpec}
+						legendSeries={legendSeries}
+						tableColumns={tableColumns}
+						signal={signal}
+						panelKind={panelKind}
+						onChangePanelKind={onChangePanelKind}
+						queryType={queryType}
+						stepInterval={stepInterval}
+						metricUnit={metricUnit}
+					/>
+				)}
 			</div>
 
 			{sections.length > 0 && (

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/PanelTypeSwitcher/__tests__/PanelTypeSwitcher.test.tsx

@@ -44,6 +44,7 @@ describe('PanelTypeSwitcher', () => {
 		// List supports only logs/traces; every other kind also supports metrics.
 		// Query-type support comes from SUPPORTED_QUERY_TYPES (all three by default).
 		mockGetPanelDefinition.mockImplementation((kind: string) => ({
+			mode: 'query',
 			supportedSignals:
 				kind === 'signoz/ListPanel'
 					? ['logs', 'traces']

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/PanelTypeSwitcher/utils.ts

@@ -2,6 +2,7 @@ import { TelemetrytypesSignalDTO } from 'api/generated/services/sigNoz.schemas';
 import { EQueryType } from 'types/common/dashboard';
 
 import {
+	isStaticPanelKind,
 	isQueryTypeSupportedByPanelKind,
 	isSignalSupported,
 } from '../../../Panels/capabilities';
@@ -37,6 +38,12 @@ export function getPanelTypeDisabledReason({
 	signal?: TelemetrytypesSignalDTO;
 	label: string;
 }): string | undefined {
+	// A kind that renders without a query pairs with anything — it declares no
+	// query types or signals, and the checks below would read that as "supports
+	// nothing" and disable it everywhere.
+	if (isStaticPanelKind(kind)) {
+		return undefined;
+	}
 	if (!isQueryTypeSupportedByPanelKind(kind, queryType)) {
 		return `${label} isn't available for ${QUERY_TYPE_LABEL[queryType]} queries`;
 	}

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/SectionSlot/SectionSlot.tsx

@@ -16,6 +16,8 @@ type SectionSlotProps = {
 	config: SectionConfig;
 	spec: DashboardtypesPanelSpecDTO;
 	onChangeSpec: (next: DashboardtypesPanelSpecDTO) => void;
+	/** Renders the editor alone, for a section promoted into the Panel Details fields. */
+	bare?: boolean;
 } & Omit<SectionEditorContext, 'yAxisUnit' | 'registerHeaderAction'>;
 
 // Per-section header content; `trigger` expands the section and runs the editor's handler.
@@ -50,6 +52,7 @@ function SectionSlot({
 	config,
 	spec,
 	onChangeSpec,
+	bare,
 	legendSeries,
 	tableColumns,
 	signal,
@@ -110,6 +113,28 @@ function SectionSlot({
 
 	const headerSlot = SECTION_HEADER_SLOT[config.kind]?.(triggerHeaderAction);
 
+	const editorElement = (
+		<Component
+			value={get(spec)}
+			controls={controls}
+			onChange={(next): void => onChangeSpec(update(spec, next))}
+			legendSeries={legendSeries}
+			yAxisUnit={yAxisUnit}
+			tableColumns={tableColumns}
+			signal={signal}
+			panelKind={panelKind}
+			onChangePanelKind={onChangePanelKind}
+			queryType={queryType}
+			stepInterval={stepInterval}
+			metricUnit={metricUnit}
+			registerHeaderAction={registerHeaderAction}
+		/>
+	);
+
+	if (bare) {
+		return editorElement;
+	}
+
 	return (
 		<SettingsSection
 			title={title}
@@ -118,21 +143,7 @@ function SectionSlot({
 			onOpenChange={setOpen}
 			headerSlot={headerSlot}
 		>
-			<Component
-				value={get(spec)}
-				controls={controls}
-				onChange={(next): void => onChangeSpec(update(spec, next))}
-				legendSeries={legendSeries}
-				yAxisUnit={yAxisUnit}
-				tableColumns={tableColumns}
-				signal={signal}
-				panelKind={panelKind}
-				onChangePanelKind={onChangePanelKind}
-				queryType={queryType}
-				stepInterval={stepInterval}
-				metricUnit={metricUnit}
-				registerHeaderAction={registerHeaderAction}
-			/>
+			{editorElement}
 		</SettingsSection>
 	);
 }

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/__tests__/ConfigPane.test.tsx

@@ -23,6 +23,14 @@ jest.mock(
 	}),
 );
 
+function textSpec(): DashboardtypesPanelSpecDTO {
+	return {
+		display: { name: 'Runbook', description: 'steps' },
+		plugin: { kind: 'signoz/TextPanel', spec: { text: '' } },
+		queries: [],
+	} as unknown as DashboardtypesPanelSpecDTO;
+}
+
 function spec(unit?: string): DashboardtypesPanelSpecDTO {
 	return {
 		display: { name: 'CPU', description: 'usage' },
@@ -93,6 +101,24 @@ describe('ConfigPane', () => {
 		);
 	});
 
+	// It hides the title strip, so it sits with the title rather than under the
+	// display options — and only a kind whose spec accepts `headerOptions` shows it.
+	it('renders the hide-header toggle among the Panel Details fields', () => {
+		renderConfigPane({ spec: textSpec() });
+
+		const toggle = screen.getByTestId('panel-header-hide');
+		expect(toggle).toBeInTheDocument();
+		expect(screen.getByText('Hide header')).toBeInTheDocument();
+		// No collapsible wrapper of its own.
+		expect(screen.queryByText('Panel header')).not.toBeInTheDocument();
+	});
+
+	it('omits the hide-header toggle for a kind that has no header options', () => {
+		renderConfigPane();
+
+		expect(screen.queryByTestId('panel-header-hide')).not.toBeInTheDocument();
+	});
+
 	it('renders the Formatting section for a kind that declares it', () => {
 		renderConfigPane();
 		// The TimeSeries kind declares a Formatting section; its collapsible header shows.

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/controls/BackgroundSwatches/BackgroundSwatches.module.scss

@@ -0,0 +1,76 @@
+.row {
+	display: flex;
+	align-items: center;
+	gap: 6px;
+}
+
+.swatch {
+	flex: none;
+	width: 26px;
+	height: 26px;
+	padding: 0;
+	display: inline-flex;
+	align-items: center;
+	justify-content: center;
+	border: 1px solid var(--l2-border);
+	border-radius: 4px;
+	background: none;
+	cursor: pointer;
+	position: relative;
+
+	// The input carries focus, so the ring is drawn on the swatch around it.
+	&:has(.input:focus-visible) {
+		outline: 2px solid var(--bg-robin-400);
+		outline-offset: 1px;
+	}
+}
+
+// The real control, sized to the swatch and invisible over it: clicks and focus
+// land on the radio, the swatch is what the user sees.
+.input {
+	position: absolute;
+	inset: 0;
+	margin: 0;
+	opacity: 0;
+	cursor: pointer;
+}
+
+.selected {
+	box-shadow: 0 0 0 2px var(--bg-robin-500);
+}
+
+// Transparency has no colour to show, so it reads as the conventional checkerboard.
+.checkerboard {
+	background-color: var(--l2-background);
+	background-image:
+		linear-gradient(
+			45deg,
+			var(--l2-border) 25%,
+			transparent 25%,
+			transparent 75%,
+			var(--l2-border) 75%
+		),
+		linear-gradient(
+			45deg,
+			var(--l2-border) 25%,
+			transparent 25%,
+			transparent 75%,
+			var(--l2-border) 75%
+		);
+	background-size: 8px 8px;
+	background-position:
+		0 0,
+		4px 4px;
+}
+
+.defaultSurface {
+	background: var(--l2-background);
+}
+
+.divider {
+	flex: none;
+	width: 1px;
+	height: 18px;
+	margin: 0 2px;
+	background: var(--l2-border);
+}

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/controls/BackgroundSwatches/BackgroundSwatches.tsx

@@ -0,0 +1,119 @@
+import { Fragment } from 'react';
+import { Check } from '@signozhq/icons';
+import { TooltipSimple } from '@signozhq/ui/tooltip';
+import cx from 'classnames';
+import {
+	TEXT_BACKGROUND_PAIRS,
+	TEXT_BACKGROUND_PRESETS,
+} from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/presets';
+import type {
+	PanelTheme,
+	TextBackgroundPreset,
+	TextBackgroundSelection,
+} from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/types';
+import { TextBackgroundKind } from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/types';
+
+import styles from './BackgroundSwatches.module.scss';
+
+const PRESET_TITLES: Record<TextBackgroundPreset, string> = {
+	robin: 'Robin',
+	purple: 'Purple',
+	sakura: 'Sakura',
+	cherry: 'Cherry',
+	amber: 'Amber',
+	forest: 'Forest',
+	sienna: 'Sienna',
+	slate: 'Slate',
+};
+
+type BaseSelection = TextBackgroundKind.None | TextBackgroundKind.Default;
+
+const BASE_TITLES: Record<BaseSelection, string> = {
+	none: 'Transparent',
+	default: 'Default panel',
+};
+
+/** Neither base swatch shows a colour, so its tooltip says what it does. */
+const BASE_TOOLTIPS: Record<BaseSelection, string> = {
+	none: 'Transparent — no card, border or title bar',
+	default: 'Default panel colour',
+};
+
+const OPTIONS: TextBackgroundSelection[] = [
+	TextBackgroundKind.None,
+	TextBackgroundKind.Default,
+	...TEXT_BACKGROUND_PRESETS,
+];
+
+const DIVIDER_AFTER = 1;
+
+interface BackgroundSwatchesProps {
+	testId: string;
+	/** Names the group for assistive tech — the row carries no visible label. */
+	label: string;
+	/** `undefined` while a custom colour is active: no swatch is selected. */
+	value: TextBackgroundSelection | undefined;
+	/** Swatches paint in this theme's pair, so what the user picks is what they see. */
+	theme: PanelTheme;
+	onChange: (value: TextBackgroundSelection) => void;
+}
+
+/**
+ * The Text panel's background choices as one radio group. Native radios sharing a
+ * `name`, so arrow-key movement, the single tab stop and selection-follows-focus
+ * are the platform's; each input is transparent and fills its swatch.
+ */
+function BackgroundSwatches({
+	testId,
+	label,
+	value,
+	theme,
+	onChange,
+}: BackgroundSwatchesProps): JSX.Element {
+	return (
+		<div
+			className={styles.row}
+			role="radiogroup"
+			aria-label={label}
+			data-testid={testId}
+		>
+			{OPTIONS.map((option, index) => {
+				const isBase =
+					option === TextBackgroundKind.None ||
+					option === TextBackgroundKind.Default;
+				const pair = isBase ? undefined : TEXT_BACKGROUND_PAIRS[option][theme];
+				const title = isBase ? BASE_TITLES[option] : PRESET_TITLES[option];
+
+				return (
+					<Fragment key={option}>
+						<TooltipSimple title={isBase ? BASE_TOOLTIPS[option] : title} arrow>
+							<label
+								className={cx(styles.swatch, {
+									[styles.checkerboard]: option === TextBackgroundKind.None,
+									[styles.defaultSurface]: option === TextBackgroundKind.Default,
+									[styles.selected]: option === value,
+								})}
+								style={pair ? { background: pair.surface, color: pair.ink } : undefined}
+								data-testid={`${testId}-${option}`}
+							>
+								<input
+									type="radio"
+									className={styles.input}
+									name={testId}
+									value={option}
+									checked={option === value}
+									aria-label={title}
+									onChange={(): void => onChange(option)}
+								/>
+								{option === value && <Check size={14} />}
+							</label>
+						</TooltipSimple>
+						{index === DIVIDER_AFTER && <span className={styles.divider} />}
+					</Fragment>
+				);
+			})}
+		</div>
+	);
+}
+
+export default BackgroundSwatches;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/controls/BackgroundSwatches/CustomBackgroundRow.module.scss

@@ -0,0 +1,67 @@
+.row {
+	display: flex;
+	width: 100%;
+	align-items: center;
+	gap: 10px;
+	padding: 8px 10px;
+	border: 1px solid var(--l2-border);
+	border-radius: 4px;
+	background: transparent;
+	cursor: pointer;
+	text-align: left;
+}
+
+.active {
+	border-color: var(--bg-robin-500);
+}
+
+.chip {
+	flex: none;
+	width: 18px;
+	height: 18px;
+	display: inline-flex;
+	align-items: center;
+	justify-content: center;
+	border: 1px solid var(--l2-border);
+	border-radius: 4px;
+}
+
+// No colour to show yet, so the chip advertises that it opens a picker.
+.chipEmpty {
+	background: conic-gradient(
+		from 0deg,
+		var(--bg-cherry-400),
+		var(--bg-amber-400),
+		var(--bg-forest-400),
+		var(--bg-robin-400),
+		var(--bg-sakura-400),
+		var(--bg-cherry-400)
+	);
+}
+
+.label {
+	flex: 1;
+	font-size: 12px;
+	color: var(--l2-foreground);
+}
+
+.hex {
+	font-family: var(--font-family-sf-mono);
+	font-size: 12px;
+	color: var(--text-vanilla-400);
+	letter-spacing: 0.02em;
+}
+
+// Appended under the picker's own panel.
+.contrast {
+	display: flex;
+	align-items: center;
+	gap: 6px;
+	padding: 8px 4px 2px;
+	font-size: 12px;
+	color: var(--text-vanilla-400);
+}
+
+.warning {
+	color: var(--bg-amber-400);
+}

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/controls/BackgroundSwatches/CustomBackgroundRow.tsx

@@ -0,0 +1,91 @@
+import type { ReactNode } from 'react';
+import { Check, ChevronDown, TriangleAlert } from '@signozhq/icons';
+import { Typography } from '@signozhq/ui/typography';
+import { ColorPicker } from 'antd';
+import cx from 'classnames';
+import {
+	contrastRatio,
+	inkForSurface,
+	MIN_CONTRAST_RATIO,
+} from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/contrast';
+
+import styles from './CustomBackgroundRow.module.scss';
+
+const HEX_PLACEHOLDER = '#______';
+
+/** What the picker opens on before a colour is chosen. */
+const INITIAL_COLOR = '#3A2A63';
+
+interface CustomBackgroundRowProps {
+	testId: string;
+	/** The stored hex while a custom colour is active; `undefined` otherwise. */
+	value: string | undefined;
+	onChange: (hex: string) => void;
+}
+
+/**
+ * The custom colour, as a row rather than a swatch: it opens a picker instead of
+ * committing a value in one click. The picker warns below the contrast floor but
+ * never blocks the choice.
+ */
+function CustomBackgroundRow({
+	testId,
+	value,
+	onChange,
+}: CustomBackgroundRowProps): JSX.Element {
+	const color = value ?? INITIAL_COLOR;
+	const ratio = contrastRatio(inkForSurface(color), color);
+	const isLegible = ratio >= MIN_CONTRAST_RATIO;
+
+	const contrastMessage = isLegible
+		? `Contrast ${ratio.toFixed(1)}:1`
+		: `Contrast ${ratio.toFixed(1)}:1 — below ${MIN_CONTRAST_RATIO}:1`;
+
+	function renderPanel(panel: ReactNode): ReactNode {
+		return (
+			<>
+				{panel}
+				<div
+					className={cx(styles.contrast, { [styles.warning]: !isLegible })}
+					data-testid={`${testId}-contrast`}
+				>
+					{!isLegible && <TriangleAlert size={12} />}
+					<span className="translate-safe">{contrastMessage}</span>
+				</div>
+			</>
+		);
+	}
+
+	return (
+		<ColorPicker
+			value={color}
+			size="small"
+			showText={false}
+			trigger="click"
+			panelRender={renderPanel}
+			onChangeComplete={(next): void => onChange(next.toHexString())}
+		>
+			<button
+				type="button"
+				className={cx(styles.row, { [styles.active]: value !== undefined })}
+				data-testid={testId}
+			>
+				<span
+					className={cx(styles.chip, { [styles.chipEmpty]: value === undefined })}
+					style={
+						value ? { background: value, color: inkForSurface(value) } : undefined
+					}
+				>
+					{value !== undefined && <Check size={14} />}
+				</span>
+				<Typography.Text className={styles.label}>Custom</Typography.Text>
+				<span className={cx(styles.hex, 'translate-safe')}>
+					{value ?? HEX_PLACEHOLDER}
+				</span>
+				<ChevronDown size={14} />
+			</button>
+		</ColorPicker>
+	);
+}
+
+export default CustomBackgroundRow;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/controls/BackgroundSwatches/__tests__/BackgroundSwatches.test.tsx

@@ -0,0 +1,118 @@
+import { fireEvent, render, screen, waitFor } from '@testing-library/react';
+import { TooltipProvider } from '@signozhq/ui/tooltip';
+import { TEXT_BACKGROUND_PAIRS } from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/presets';
+import {
+	PanelTheme,
+	TextBackgroundKind,
+	TextBackgroundPreset,
+} from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/types';
+
+import BackgroundSwatches from '../BackgroundSwatches';
+
+function renderRow(
+	props: Partial<React.ComponentProps<typeof BackgroundSwatches>> = {},
+): jest.Mock {
+	const onChange = jest.fn();
+	render(
+		<TooltipProvider>
+			<BackgroundSwatches
+				testId="background"
+				label="Panel background"
+				theme={PanelTheme.Dark}
+				value={TextBackgroundKind.Default}
+				onChange={onChange}
+				{...props}
+			/>
+		</TooltipProvider>,
+	);
+	return onChange;
+}
+
+describe('BackgroundSwatches', () => {
+	it('offers transparent, the default surface and the eight presets in order', () => {
+		renderRow();
+
+		expect(
+			screen
+				.getAllByRole('radio')
+				.map((swatch) => swatch.getAttribute('aria-label')),
+		).toStrictEqual([
+			'Transparent',
+			'Default panel',
+			'Robin',
+			'Purple',
+			'Sakura',
+			'Cherry',
+			'Amber',
+			'Forest',
+			'Sienna',
+			'Slate',
+		]);
+	});
+
+	it('is one labelled group', () => {
+		renderRow();
+
+		expect(
+			screen.getByRole('radiogroup', { name: 'Panel background' }),
+		).toBeInTheDocument();
+	});
+
+	it.each([
+		['background-none', 'Transparent — no card, border or title bar'],
+		['background-default', 'Default panel colour'],
+		['background-sakura', 'Sakura'],
+	])('explains %s on hover', async (swatchId, copy) => {
+		renderRow();
+
+		fireEvent.focus(screen.getByTestId(swatchId));
+
+		await waitFor(() => {
+			expect(screen.getByRole('tooltip')).toHaveTextContent(copy);
+		});
+	});
+
+	it('paints each preset in the given theme', () => {
+		renderRow({ theme: PanelTheme.Light });
+
+		expect(screen.getByTestId('background-amber')).toHaveStyle({
+			background: TEXT_BACKGROUND_PAIRS.amber.light.surface,
+			color: TEXT_BACKGROUND_PAIRS.amber.light.ink,
+		});
+	});
+
+	it('marks only the selected swatch, and checks it', () => {
+		renderRow({ value: TextBackgroundPreset.Forest });
+
+		expect(screen.getByRole('radio', { name: 'Forest' })).toBeChecked();
+		expect(
+			screen.getByRole('radio', { name: 'Default panel' }),
+		).not.toBeChecked();
+		expect(
+			screen.getByTestId('background-forest').querySelector('svg'),
+		).toBeInTheDocument();
+		expect(
+			screen.getByTestId('background-default').querySelector('svg'),
+		).not.toBeInTheDocument();
+	});
+
+	it('reports the swatch that was clicked', () => {
+		const onChange = renderRow();
+
+		fireEvent.click(screen.getByRole('radio', { name: 'Sienna' }));
+
+		expect(onChange).toHaveBeenCalledWith('sienna');
+	});
+
+	// jsdom does not implement radio arrow navigation, so the shared name — what
+	// makes them one group — is what there is to assert.
+	it('groups every swatch under one radio name', () => {
+		renderRow();
+
+		const names = new Set(
+			screen.getAllByRole('radio').map((swatch) => swatch.getAttribute('name')),
+		);
+
+		expect(names).toStrictEqual(new Set(['background']));
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/controls/BackgroundSwatches/__tests__/CustomBackgroundRow.test.tsx

@@ -0,0 +1,77 @@
+import { fireEvent, render, screen } from '@testing-library/react';
+
+import CustomBackgroundRow from '../CustomBackgroundRow';
+
+function renderRow(value?: string): jest.Mock {
+	const onChange = jest.fn();
+	render(
+		<CustomBackgroundRow testId="custom" value={value} onChange={onChange} />,
+	);
+	return onChange;
+}
+
+describe('CustomBackgroundRow', () => {
+	it('stands in for the hex while no custom colour is set', () => {
+		renderRow();
+
+		expect(screen.getByTestId('custom')).toHaveTextContent('#______');
+	});
+
+	it('shows the stored hex once one is set', () => {
+		renderRow('#3A2A63');
+
+		expect(screen.getByTestId('custom')).toHaveTextContent('#3A2A63');
+	});
+
+	it('checks the chip only while the custom colour is the selection', () => {
+		renderRow('#3A2A63');
+
+		expect(screen.getByTestId('custom').querySelector('svg')).toBeInTheDocument();
+	});
+
+	it('leaves the chip unchecked while no custom colour is set', () => {
+		renderRow();
+
+		expect(screen.getByTestId('custom').querySelectorAll('svg')).toHaveLength(1);
+	});
+
+	describe('the picker', () => {
+		it('opens on the row', () => {
+			renderRow('#3A2A63');
+
+			fireEvent.click(screen.getByTestId('custom'));
+
+			expect(screen.getByTestId('custom-contrast')).toBeInTheDocument();
+		});
+
+		it('reports the contrast the colour achieves', () => {
+			renderRow('#3A2A63');
+
+			fireEvent.click(screen.getByTestId('custom'));
+
+			// The derived ink is pure white, not purple's paired ink.
+			expect(screen.getByTestId('custom-contrast')).toHaveTextContent(
+				'Contrast 12.4:1',
+			);
+		});
+
+		it('warns when no ink clears the floor, without disabling anything', () => {
+			renderRow('#808080');
+
+			fireEvent.click(screen.getByTestId('custom'));
+
+			expect(screen.getByTestId('custom-contrast')).toHaveTextContent(
+				'below 4.5:1',
+			);
+			expect(screen.getByTestId('custom')).toBeEnabled();
+		});
+
+		it('says nothing about the floor when the colour clears it', () => {
+			renderRow('#111111');
+
+			fireEvent.click(screen.getByTestId('custom'));
+
+			expect(screen.getByTestId('custom-contrast')).not.toHaveTextContent('below');
+		});
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/sectionRegistry.tsx

@@ -23,6 +23,8 @@ import ChartAppearanceSection from './sections/ChartAppearanceSection/ChartAppea
 import ContextLinksSection from './sections/ContextLinksSection/ContextLinksSection';
 import FormattingSection from './sections/FormattingSection/FormattingSection';
 import LegendSection from './sections/LegendSection/LegendSection';
+import PanelHeaderSection from './sections/PanelHeaderSection/PanelHeaderSection';
+import TextLayoutSection from './sections/TextLayoutSection/TextLayoutSection';
 import ThresholdsSection from './sections/ThresholdsSection/ThresholdsSection';
 import VisualizationSection from './sections/VisualizationSection/VisualizationSection';
 
@@ -117,6 +119,23 @@ export const SECTION_REGISTRY: {
 		update: (spec, buckets): PanelSpec =>
 			updatePluginSlice(spec, 'histogramBuckets', buckets),
 	},
+	[SectionKind.TextLayout]: {
+		Component: TextLayoutSection,
+		get: (spec): SectionSpecMap[SectionKind.TextLayout] | undefined =>
+			getPluginSlice<SectionSpecMap[SectionKind.TextLayout]>(spec, 'presentation'),
+		update: (spec, presentation): PanelSpec =>
+			updatePluginSlice(spec, 'presentation', presentation),
+	},
+	[SectionKind.PanelHeader]: {
+		Component: PanelHeaderSection,
+		get: (spec): SectionSpecMap[SectionKind.PanelHeader] | undefined =>
+			getPluginSlice<SectionSpecMap[SectionKind.PanelHeader]>(
+				spec,
+				'headerOptions',
+			),
+		update: (spec, headerOptions): PanelSpec =>
+			updatePluginSlice(spec, 'headerOptions', headerOptions),
+	},
 	[SectionKind.ContextLinks]: {
 		Component: ContextLinksSection,
 		// Panel-level slice (spec.links), not under the plugin spec — no cast needed.

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/sections/PanelHeaderSection/PanelHeaderSection.tsx

@@ -0,0 +1,24 @@
+import type {
+	SectionEditorProps,
+	SectionKind,
+} from 'pages/DashboardPage/DashboardContainer/Panels/types/sections';
+
+import ConfigSwitch from '../../controls/ConfigSwitch/ConfigSwitch';
+
+/** Edits the Text panel's `headerOptions` slice: the panel card's title strip. */
+function PanelHeaderSection({
+	value,
+	onChange,
+}: SectionEditorProps<SectionKind.PanelHeader>): JSX.Element {
+	return (
+		<ConfigSwitch
+			testId="panel-header-hide"
+			title="Hide header"
+			description="Drop the title strip on the dashboard; hovering the panel shows controls for drag and actions."
+			value={value?.hide === true}
+			onChange={(hide): void => onChange({ ...value, hide })}
+		/>
+	);
+}
+
+export default PanelHeaderSection;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/sections/PanelHeaderSection/__tests__/PanelHeaderSection.test.tsx

@@ -0,0 +1,29 @@
+import { fireEvent, render, screen } from '@testing-library/react';
+
+import PanelHeaderSection from '../PanelHeaderSection';
+
+describe('PanelHeaderSection', () => {
+	it('toggles hide on', () => {
+		const onChange = jest.fn();
+		render(<PanelHeaderSection value={undefined} onChange={onChange} />);
+
+		fireEvent.click(screen.getByTestId('panel-header-hide'));
+
+		expect(onChange).toHaveBeenCalledWith({ hide: true });
+	});
+
+	it('toggles hide back off', () => {
+		const onChange = jest.fn();
+		render(<PanelHeaderSection value={{ hide: true }} onChange={onChange} />);
+
+		fireEvent.click(screen.getByTestId('panel-header-hide'));
+
+		expect(onChange).toHaveBeenCalledWith({ hide: false });
+	});
+
+	it('shows the header by default when the slice is empty', () => {
+		render(<PanelHeaderSection value={undefined} onChange={jest.fn()} />);
+
+		expect(screen.getByTestId('panel-header-hide')).not.toBeChecked();
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/sections/TextLayoutSection/TextLayoutSection.module.scss

@@ -0,0 +1,11 @@
+.section {
+	display: flex;
+	flex-direction: column;
+	gap: 16px;
+}
+
+.field {
+	display: flex;
+	flex-direction: column;
+	gap: 8px;
+}

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/sections/TextLayoutSection/TextLayoutSection.tsx

@@ -0,0 +1,99 @@
+import {
+	DashboardtypesTextAlignDTO,
+	DashboardtypesVerticalAlignDTO,
+} from 'api/generated/services/sigNoz.schemas';
+import { Typography } from '@signozhq/ui/typography';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+import {
+	resolveTextBackground,
+	selectionFromResolved,
+	storedFromSelection,
+} from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/resolveTextBackground';
+import type { TextBackgroundSelection } from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/types';
+import {
+	PanelTheme,
+	TextBackgroundKind,
+} from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/types';
+import type {
+	SectionEditorProps,
+	SectionKind,
+} from 'pages/DashboardPage/DashboardContainer/Panels/types/sections';
+
+import BackgroundSwatches from '../../controls/BackgroundSwatches/BackgroundSwatches';
+import CustomBackgroundRow from '../../controls/BackgroundSwatches/CustomBackgroundRow';
+import ConfigSegmented from '../../controls/ConfigSegmented/ConfigSegmented';
+
+import styles from './TextLayoutSection.module.scss';
+
+const HORIZONTAL_OPTIONS = [
+	{ value: DashboardtypesTextAlignDTO.left, label: 'Left' },
+	{ value: DashboardtypesTextAlignDTO.center, label: 'Center' },
+	{ value: DashboardtypesTextAlignDTO.right, label: 'Right' },
+];
+
+const VERTICAL_OPTIONS = [
+	{ value: DashboardtypesVerticalAlignDTO.top, label: 'Top' },
+	{ value: DashboardtypesVerticalAlignDTO.center, label: 'Middle' },
+	{ value: DashboardtypesVerticalAlignDTO.bottom, label: 'Bottom' },
+];
+
+/**
+ * Edits the Text panel's `presentation` slice: body alignment and the card
+ * background (TDD D7 — scoped to the text spec, not the panel envelope).
+ */
+function TextLayoutSection({
+	value,
+	onChange,
+}: SectionEditorProps<SectionKind.TextLayout>): JSX.Element {
+	const theme = useIsDarkMode() ? PanelTheme.Dark : PanelTheme.Light;
+	const background = resolveTextBackground(value?.background, theme);
+
+	return (
+		<div className={styles.section}>
+			<div className={styles.field}>
+				<Typography.Text>Horizontal alignment</Typography.Text>
+				<ConfigSegmented
+					testId="text-layout-horizontal-align"
+					items={HORIZONTAL_OPTIONS}
+					value={value?.textAlign ?? DashboardtypesTextAlignDTO.left}
+					onChange={(textAlign): void => onChange({ ...value, textAlign })}
+				/>
+			</div>
+			<div className={styles.field}>
+				<Typography.Text>Vertical alignment</Typography.Text>
+				<ConfigSegmented
+					testId="text-layout-vertical-align"
+					items={VERTICAL_OPTIONS}
+					value={value?.verticalAlign ?? DashboardtypesVerticalAlignDTO.top}
+					onChange={(verticalAlign): void => onChange({ ...value, verticalAlign })}
+				/>
+			</div>
+			<div className={styles.field}>
+				<Typography.Text>Background</Typography.Text>
+				<BackgroundSwatches
+					testId="text-layout-background"
+					label="Panel background"
+					theme={theme}
+					value={selectionFromResolved(background)}
+					onChange={(selection: TextBackgroundSelection): void =>
+						onChange({
+							...value,
+							background: storedFromSelection(selection, theme),
+						})
+					}
+				/>
+				<CustomBackgroundRow
+					testId="text-layout-background-custom"
+					value={
+						background.kind === TextBackgroundKind.Custom
+							? background.surface
+							: undefined
+					}
+					onChange={(hex): void => onChange({ ...value, background: hex })}
+				/>
+			</div>
+		</div>
+	);
+}
+
+export default TextLayoutSection;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/sections/TextLayoutSection/__tests__/TextLayoutSection.test.tsx

@@ -0,0 +1,144 @@
+import type { ReactElement } from 'react';
+import {
+	fireEvent,
+	render as rtlRender,
+	type RenderResult,
+	screen,
+} from '@testing-library/react';
+import { TooltipProvider } from '@signozhq/ui/tooltip';
+import {
+	DashboardtypesTextAlignDTO,
+	DashboardtypesVerticalAlignDTO,
+} from 'api/generated/services/sigNoz.schemas';
+import {
+	TEXT_BACKGROUND_PAIRS,
+	TRANSPARENT_BACKGROUND,
+} from 'pages/DashboardPage/DashboardContainer/Panels/kinds/TextPanel/background/presets';
+
+import TextLayoutSection from '../TextLayoutSection';
+
+const value = {
+	textAlign: DashboardtypesTextAlignDTO.left,
+	verticalAlign: DashboardtypesVerticalAlignDTO.top,
+};
+
+// The swatch tooltips need a provider; AppLayout supplies one at runtime.
+function render(ui: ReactElement): RenderResult {
+	return rtlRender(<TooltipProvider>{ui}</TooltipProvider>);
+}
+
+// The theme context defaults to dark, so the swatches paint the dark pairs.
+describe('TextLayoutSection', () => {
+	it('changes horizontal alignment', () => {
+		const onChange = jest.fn();
+		render(<TextLayoutSection value={value} onChange={onChange} />);
+
+		fireEvent.click(screen.getByText('Center'));
+
+		expect(onChange).toHaveBeenCalledWith({
+			...value,
+			textAlign: DashboardtypesTextAlignDTO.center,
+		});
+	});
+
+	it('changes vertical alignment', () => {
+		const onChange = jest.fn();
+		render(<TextLayoutSection value={value} onChange={onChange} />);
+
+		fireEvent.click(screen.getByText('Bottom'));
+
+		expect(onChange).toHaveBeenCalledWith({
+			...value,
+			verticalAlign: DashboardtypesVerticalAlignDTO.bottom,
+		});
+	});
+
+	it('stores the surface of the theme a preset was picked in', () => {
+		const onChange = jest.fn();
+		render(<TextLayoutSection value={value} onChange={onChange} />);
+
+		fireEvent.click(screen.getByRole('radio', { name: 'Amber' }));
+
+		expect(onChange).toHaveBeenCalledWith({
+			...value,
+			background: TEXT_BACKGROUND_PAIRS.amber.dark.surface,
+		});
+	});
+
+	it('stores a zero-alpha colour for transparent', () => {
+		const onChange = jest.fn();
+		render(<TextLayoutSection value={value} onChange={onChange} />);
+
+		fireEvent.click(screen.getByRole('radio', { name: 'Transparent' }));
+
+		expect(onChange).toHaveBeenCalledWith({
+			...value,
+			background: TRANSPARENT_BACKGROUND,
+		});
+	});
+
+	it('unsets the background for the default panel surface', () => {
+		const onChange = jest.fn();
+		render(
+			<TextLayoutSection
+				value={{ ...value, background: TRANSPARENT_BACKGROUND }}
+				onChange={onChange}
+			/>,
+		);
+
+		fireEvent.click(screen.getByRole('radio', { name: 'Default panel' }));
+
+		expect(onChange).toHaveBeenCalledWith({ ...value, background: undefined });
+	});
+
+	it('lights up the swatch the stored surface belongs to', () => {
+		render(
+			<TextLayoutSection
+				value={{ ...value, background: TEXT_BACKGROUND_PAIRS.sakura.light.surface }}
+				onChange={jest.fn()}
+			/>,
+		);
+
+		expect(screen.getByRole('radio', { name: 'Sakura' })).toBeChecked();
+	});
+
+	it('stores a custom colour straight from the picker', () => {
+		const onChange = jest.fn();
+		render(<TextLayoutSection value={value} onChange={onChange} />);
+
+		fireEvent.click(screen.getByTestId('text-layout-background-custom'));
+		fireEvent.change(screen.getByRole('textbox'), {
+			target: { value: '3A2A64' },
+		});
+
+		expect(onChange).toHaveBeenCalledWith({
+			...value,
+			background: '#3a2a64',
+		});
+	});
+
+	it('shows a stored custom colour on the custom row alone', () => {
+		render(
+			<TextLayoutSection
+				value={{ ...value, background: '#3A2A64' }}
+				onChange={jest.fn()}
+			/>,
+		);
+
+		expect(screen.getByTestId('text-layout-background-custom')).toHaveTextContent(
+			'#3A2A64',
+		);
+		expect(
+			screen
+				.getAllByRole<HTMLInputElement>('radio')
+				.filter((swatch) => swatch.checked),
+		).toHaveLength(0);
+	});
+
+	it('selects the default surface when nothing is stored', () => {
+		render(<TextLayoutSection value={undefined} onChange={jest.fn()} />);
+
+		expect(screen.getByRole('radio', { name: 'Default panel' })).toBeChecked();
+		expect(screen.getByRole('radio', { name: 'Transparent' })).not.toBeChecked();
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/ConfigPane/sections/VisualizationSection/__tests__/VisualizationSection.test.tsx

@@ -8,6 +8,7 @@ import VisualizationSection from '../VisualizationSection';
 // the test doesn't pull the whole panel registry (renderers, chart libs).
 jest.mock('pages/DashboardPage/DashboardContainer/Panels/registry', () => ({
 	getPanelDefinition: jest.fn(() => ({
+		mode: 'query',
 		supportedSignals: ['metrics', 'logs', 'traces'],
 		supportedQueryTypes: ['builder', 'clickhouse_sql', 'promql'],
 	})),

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/PanelEditorLayout/PanelEditorLayout.tsx

@@ -0,0 +1,116 @@
+import type { ReactNode } from 'react';
+import {
+	ResizableHandle,
+	ResizablePanel,
+	ResizablePanelGroup,
+	useDefaultLayout,
+} from '@signozhq/ui/resizable';
+
+import layoutStorage from '../layoutStorage';
+
+import styles from '../PanelEditor.module.scss';
+
+/** A resizable pane's bounds, in the percentage strings `ResizablePanel` takes. */
+interface PaneSize {
+	minSize: string;
+	maxSize: string;
+	defaultSize: string;
+}
+
+/** How the left column divides between the preview and the editor pane. */
+export interface PaneSplit {
+	preview: PaneSize;
+	editor: PaneSize;
+}
+
+/**
+ * Vertical split per authoring mode. The query builder is a compact form, so the
+ * preview keeps the room; a static kind's editor pane is the surface being worked
+ * in, so it gets more and can grow further.
+ */
+export const PANE_SPLIT = {
+	query: {
+		preview: { minSize: '55%', maxSize: '65%', defaultSize: '60%' },
+		editor: { minSize: '35%', maxSize: '45%', defaultSize: '40%' },
+	},
+	static: {
+		preview: { minSize: '40%', maxSize: '65%', defaultSize: '55%' },
+		editor: { minSize: '35%', maxSize: '60%', defaultSize: '45%' },
+	},
+} as const satisfies Record<string, PaneSplit>;
+
+interface PanelEditorLayoutProps {
+	/** Save/close chrome — its affordances differ per authoring mode. */
+	header: ReactNode;
+	/** Upper-left: what the panel will look like once saved. */
+	preview: ReactNode;
+	/** Lower-left: the kind's `EditorPane` — the query builder, or a static kind's own. */
+	editor: ReactNode;
+	/** Right column: the kind's config sections. */
+	config: ReactNode;
+	split: PaneSplit;
+}
+
+/**
+ * The panel editor's frame: header, the resizable three-pane arrangement, and the
+ * persistence of what the user drags. Owned once so both authoring modes cannot
+ * drift apart on pane bounds or share a layout id by accident — they differ only in
+ * `split` and in what fills the slots.
+ */
+function PanelEditorLayout({
+	header,
+	preview,
+	editor,
+	config,
+	split,
+}: PanelEditorLayoutProps): JSX.Element {
+	const { defaultLayout, onLayoutChanged } = useDefaultLayout({
+		id: 'panel-editor-v2',
+		storage: layoutStorage,
+	});
+	const {
+		defaultLayout: mainDefaultLayout,
+		onLayoutChanged: onMainLayoutChanged,
+	} = useDefaultLayout({
+		id: 'panel-editor-v2-main',
+		storage: layoutStorage,
+	});
+
+	return (
+		<div className={styles.page} data-testid="panel-editor-v2">
+			{header}
+			<ResizablePanelGroup
+				id="panel-editor-v2"
+				orientation="horizontal"
+				defaultLayout={defaultLayout}
+				onLayoutChanged={onLayoutChanged}
+			>
+				<ResizablePanel minSize="75%" maxSize="80%" defaultSize="80%">
+					<div className={styles.left}>
+						<ResizablePanelGroup
+							id="panel-editor-v2-main"
+							orientation="vertical"
+							defaultLayout={mainDefaultLayout}
+							onLayoutChanged={onMainLayoutChanged}
+						>
+							<ResizablePanel {...split.preview}>{preview}</ResizablePanel>
+							<ResizableHandle withHandle className={styles.handle} />
+							<ResizablePanel {...split.editor}>{editor}</ResizablePanel>
+						</ResizablePanelGroup>
+					</div>
+				</ResizablePanel>
+				<ResizableHandle withHandle className={styles.handle} />
+				<ResizablePanel
+					minSize="20%"
+					maxSize="25%"
+					defaultSize="20%"
+					className={styles.right}
+				>
+					{config}
+				</ResizablePanel>
+			</ResizablePanelGroup>
+		</div>
+	);
+}
+
+export default PanelEditorLayout;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/PanelEditorQueryBuilder/PanelEditorQueryBuilder.tsx

@@ -21,20 +21,15 @@ import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import { useIsDarkMode } from 'hooks/useDarkMode';
 import { EQueryType } from 'types/common/dashboard';
 
-import {
-	getHiddenQueryBuilderFields,
-	getSupportedQueryTypes,
-} from '../../Panels/capabilities';
-import {
-	PANEL_KIND_TO_PANEL_TYPE,
-	type PanelKind,
-} from '../../Panels/types/panelKind';
+import { mergeQueryBuilderFieldRule } from '../../Panels/types/panelCapabilities';
+import type { RenderableQueryPanelDefinition } from '../../Panels/types/panelDefinition';
+import { toPanelType } from '../../Panels/types/panelKind';
 
 import styles from './PanelEditorQueryBuilder.module.scss';
 
 interface PanelEditorQueryBuilderProps {
-	/** The edited panel's visualization kind — drives supported query types + field visibility via the capabilities guard. */
-	panelKind: PanelKind;
+	/** The edited kind's definition — drives supported query types + field visibility. */
+	panelDefinition: RenderableQueryPanelDefinition;
 	/** The panel's current signal; selects per-signal query-builder field rules. */
 	signal: TelemetrytypesSignalDTO;
 	/** Preview fetch in flight — drives the Stage & Run button's loading/cancel state. */
@@ -55,7 +50,7 @@ interface PanelEditorQueryBuilderProps {
  * `QueryBuilderProvider`. `usePanelEditorQuerySync` owns the panel↔provider sync.
  */
 function PanelEditorQueryBuilder({
-	panelKind,
+	panelDefinition,
 	signal,
 	isLoadingQueries,
 	onStageRunQuery,
@@ -65,10 +60,10 @@ function PanelEditorQueryBuilder({
 }: PanelEditorQueryBuilderProps): JSX.Element {
 	// The shared QueryBuilderV2 provider still speaks the legacy PANEL_TYPES; what the
 	// builder offers for this kind comes from the kind's own declaration.
-	const panelType = PANEL_KIND_TO_PANEL_TYPE[panelKind];
+	const panelType = toPanelType(panelDefinition.kind);
 	// Raw rows: the builder drops its aggregation controls, and with them the trace
 	// operator that combines aggregated trace queries (V1 parity).
-	const isListViewPanel = panelKind === 'signoz/ListPanel';
+	const isListViewPanel = panelDefinition.kind === 'signoz/ListPanel';
 	const { currentQuery, redirectWithQueryBuilderData } = useQueryBuilder();
 	const isDarkMode = useIsDarkMode();
 
@@ -99,12 +94,12 @@ function PanelEditorQueryBuilder({
 	// Per-kind query-builder field rules from the guard (e.g. List hides step interval
 	// and having), passed to QueryBuilderV2 as its `filterConfigs`.
 	const filterConfigs: QueryBuilderProps['filterConfigs'] = useMemo(
-		() => getHiddenQueryBuilderFields(panelKind, signal),
-		[panelKind, signal],
+		() => mergeQueryBuilderFieldRule(panelDefinition.queryBuilderFields, signal),
+		[panelDefinition.queryBuilderFields, signal],
 	);
 
 	const items = useMemo(() => {
-		const supportedQueryTypes = getSupportedQueryTypes(panelKind);
+		const { supportedQueryTypes } = panelDefinition;
 
 		const queryTypeComponents = {
 			[EQueryType.QUERY_BUILDER]: {
@@ -151,7 +146,7 @@ function PanelEditorQueryBuilder({
 			),
 			children: queryTypeComponents[queryType].component,
 		}));
-	}, [panelKind, panelType, filterConfigs, isDarkMode, isListViewPanel]);
+	}, [panelDefinition, panelType, filterConfigs, isDarkMode, isListViewPanel]);
 
 	return (
 		<div

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/PanelEditorQueryBuilder/QueryBuilderEditorPane.tsx

@@ -0,0 +1,28 @@
+import type { QueryEditorPaneProps } from '../../Panels/types/panelDefinition';
+import PanelEditorQueryBuilder from './PanelEditorQueryBuilder';
+
+/**
+ * The default query-kind editor pane: the query-builder tabs with no extras. A
+ * kind that needs more (e.g. List's columns editor) declares its own wrapper.
+ */
+function QueryBuilderEditorPane({
+	panelDefinition,
+	signal,
+	isLoadingQueries,
+	onStageRunQuery,
+	onCancelQuery,
+	stickyHeader,
+}: QueryEditorPaneProps): JSX.Element {
+	return (
+		<PanelEditorQueryBuilder
+			panelDefinition={panelDefinition}
+			signal={signal}
+			isLoadingQueries={isLoadingQueries}
+			onStageRunQuery={onStageRunQuery}
+			onCancelQuery={onCancelQuery}
+			stickyHeader={stickyHeader}
+		/>
+	);
+}
+
+export default QueryBuilderEditorPane;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/PanelEditorQueryBuilder/__tests__/PanelEditorQueryBuilder.test.tsx

@@ -4,6 +4,9 @@ import { OPERATORS } from 'constants/queryBuilder';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import { EQueryType } from 'types/common/dashboard';
 
+import { requireQueryPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/capabilities';
+import type { PanelKind } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelKind';
+
 import PanelEditorQueryBuilder from '../PanelEditorQueryBuilder';
 
 // Capture the props the (real-guard-fed) QueryBuilderV2 receives without rendering it.
@@ -48,7 +51,7 @@ function renderBuilder(
 ): void {
 	render(
 		<PanelEditorQueryBuilder
-			panelKind={panelKind as never}
+			panelDefinition={requireQueryPanelDefinition(panelKind as PanelKind)}
 			signal={signal}
 			isLoadingQueries={false}
 			onStageRunQuery={jest.fn()}

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/PreviewPane/PreviewPane.module.scss

@@ -9,6 +9,13 @@
 	border-bottom: 1px solid var(--l1-border);
 }
 
+// A static pane never scrolls — the panel card clips, and the renderer scrolls its
+// own body when the content outgrows it, as on the grid.
+.previewStatic {
+	box-sizing: border-box;
+	overflow: hidden;
+}
+
 .header {
 	width: 100%;
 	box-sizing: border-box;
@@ -56,6 +63,14 @@
 	overflow: visible;
 }
 
+// A static kind's card takes its colours from the background the panel declares,
+// falling back to the same tokens the query surface uses.
+.surfaceStatic {
+	border-color: var(--text-panel-border, var(--l2-border));
+	background: var(--text-panel-surface, var(--l2-background));
+	color: var(--text-panel-ink, inherit);
+}
+
 .state {
 	flex: 1;
 	display: flex;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/PreviewPane/PreviewPane.tsx

@@ -5,10 +5,16 @@ import { PanelMode } from 'lib/visualization/panels/types';
 import DateTimeSelectionV2 from 'container/TopNav/DateTimeSelectionV2';
 import PanelBody from 'pages/DashboardPage/DashboardContainer/PanelsAndSectionsLayout/Panel/PanelBody/PanelBody';
 import PanelHeader from 'pages/DashboardPage/DashboardContainer/PanelsAndSectionsLayout/Panel/PanelHeader/PanelHeader';
+import StaticPanelBody from 'pages/DashboardPage/DashboardContainer/PanelsAndSectionsLayout/Panel/StaticPanelBody/StaticPanelBody';
+import { useTextBackground } from 'pages/DashboardPage/DashboardContainer/Panels/hooks/useTextBackground';
 import type { AnyPanelInteractionProps } from 'pages/DashboardPage/DashboardContainer/Panels/types/interactions';
-import type { RenderablePanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelDefinition';
+import type {
+	RenderableQueryPanelDefinition,
+	RenderableStaticPanelDefinition,
+} from 'pages/DashboardPage/DashboardContainer/Panels/types/panelDefinition';
 import type { DashboardPreference } from 'pages/DashboardPage/DashboardContainer/Panels/types/rendererProps';
 import { getPanelQueryType } from 'pages/DashboardPage/DashboardContainer/Panels/utils/getPanelQueryType';
+import { isPanelHeaderHidden } from 'pages/DashboardPage/DashboardContainer/Panels/utils/isPanelHeaderHidden';
 import type {
 	PanelPagination,
 	PanelQueryData,
@@ -17,11 +23,17 @@ import type {
 import PlotTag from './PlotTag';
 import styles from './PreviewPane.module.scss';
 
-interface PreviewPaneProps {
+interface PreviewPaneBaseProps {
 	panelId: string;
 	panel: DashboardtypesPanelDTO;
-	/** Resolved definition for the panel kind; */
-	panelDefinition: RenderablePanelDefinition;
+	/** Render context — defaults to the editor's DASHBOARD_EDIT; the View modal passes STANDALONE_VIEW. */
+	panelMode?: PanelMode;
+}
+
+interface QueryPreviewPaneProps extends PreviewPaneBaseProps {
+	mode: 'query';
+	/** The kind's definition, narrowed to the query arm — this preview is the query render path. */
+	panelDefinition: RenderableQueryPanelDefinition;
 	data: PanelQueryData;
 	/** Any fetch in flight — drives the header spinner and the body's loading state. */
 	isFetching: boolean;
@@ -34,8 +46,6 @@ interface PreviewPaneProps {
 	onDragSelect: (start: number, end: number) => void;
 	/** Server-side pager for raw/list panels; absent for non-paginated panels. */
 	pagination?: PanelPagination;
-	/** Render context — defaults to the editor's DASHBOARD_EDIT; the View modal passes STANDALONE_VIEW. */
-	panelMode?: PanelMode;
 	/** Hide the preview's top row entirely (query-type badge + time picker) — the View modal has its own header. */
 	hideHeader?: boolean;
 	/** Dashboard-wide preferences (cursor sync, …) forwarded to the body; the modal isolates cursor-sync. */
@@ -48,41 +58,43 @@ interface PreviewPaneProps {
 	enableDrillDown?: boolean;
 }
 
+interface StaticPreviewPaneProps extends PreviewPaneBaseProps {
+	mode: 'static';
+	/** The kind's definition, narrowed to the static arm — no query, no Run step. */
+	panelDefinition: RenderableStaticPanelDefinition;
+	/** Saves an edit made from the rendered body into the draft; absent = read-only. */
+	onChangeText?: (text: string) => void;
+}
+
+type PreviewPaneProps = QueryPreviewPaneProps | StaticPreviewPaneProps;
+
 /**
- * Live preview for the panel editor: renders the draft through the same `PanelBody`
- * the dashboard grid uses (only `panelMode` differs), so the preview is the
- * production render path. The query result is owned by the editor root.
+ * Live preview for the panel editor and the View modal: the draft rendered through
+ * the same body the dashboard grid uses (only `panelMode` differs), so the preview
+ * is the production render path. A query draft's result is owned by the editor
+ * root; a static draft re-renders straight from the spec on every edit.
  */
-function PreviewPane({
-	panelId,
-	panel,
-	panelDefinition,
-	data,
-	isFetching,
-	isPreviousData,
-	error,
-	refetch,
-	onDragSelect,
-	pagination,
-	panelMode = PanelMode.DASHBOARD_EDIT,
-	hideHeader = false,
-	dashboardPreference,
-	onCloseStandaloneView,
-	onClick,
-	enableDrillDown,
-}: PreviewPaneProps): JSX.Element {
-	const queryType = getPanelQueryType(panel);
+function PreviewPane(props: PreviewPaneProps): JSX.Element {
+	const { panelId, panel, panelMode = PanelMode.DASHBOARD_EDIT } = props;
+	const query = props.mode === 'query' ? props : null;
+	const staticDraft = props.mode === 'static' ? props : null;
+	const background = useTextBackground(panel.spec);
 
 	// Search term is ephemeral preview state, threaded to header + renderer but
 	// not persisted to the draft spec. Only kinds that declare it render the box.
-	const searchable = !!panelDefinition.actions.search;
+	const searchable = !!query?.panelDefinition.actions.search;
 	const [searchTerm, setSearchTerm] = useState('');
 
 	return (
-		<div className={styles.preview}>
-			{!hideHeader && (
+		<div
+			className={cx(styles.preview, { [styles.previewStatic]: !!staticDraft })}
+		>
+			{query && !query.hideHeader && (
 				<div className={styles.header}>
-					<PlotTag queryType={queryType} className={styles.queryType} />
+					<PlotTag
+						queryType={getPanelQueryType(panel)}
+						className={styles.queryType}
+					/>
 					<div className={styles.dateTimeSelector}>
 						<DateTimeSelectionV2 showAutoRefresh hideShareModal />
 					</div>
@@ -91,39 +103,67 @@ function PreviewPane({
 			<div className={styles.container}>
 				<div
 					className={cx(styles.surface, {
-						[styles.surfaceStacked]: panelMode === PanelMode.STANDALONE_VIEW,
+						[styles.surfaceStacked]:
+							!!query && panelMode === PanelMode.STANDALONE_VIEW,
+						[styles.surfaceStatic]: !!staticDraft,
 					})}
+					style={background.style}
 				>
-					<PanelHeader
-						panelId={panelId}
-						panel={panel}
-						data={data}
-						isFetching={isFetching}
-						error={error}
-						warning={data.response?.data?.warning}
-						searchable={searchable}
-						searchTerm={searchTerm}
-						onSearchChange={setSearchTerm}
-						hideActions
-					/>
-					<PanelBody
-						panelDefinition={panelDefinition}
-						panel={panel}
-						panelId={panelId}
-						data={data}
-						isFetching={isFetching}
-						isPreviousData={isPreviousData}
-						error={error}
-						refetch={refetch}
-						onDragSelect={onDragSelect}
-						panelMode={panelMode}
-						dashboardPreference={dashboardPreference}
-						searchTerm={searchable ? searchTerm : undefined}
-						pagination={pagination}
-						onCloseStandaloneView={onCloseStandaloneView}
-						onClick={onClick}
-						enableDrillDown={enableDrillDown}
-					/>
+					{query ? (
+						<>
+							<PanelHeader
+								mode="query"
+								panelId={panelId}
+								panel={panel}
+								data={query.data}
+								isFetching={query.isFetching}
+								error={query.error}
+								warning={query.data.response?.data?.warning}
+								searchable={searchable}
+								searchTerm={searchTerm}
+								onSearchChange={setSearchTerm}
+								hideActions
+							/>
+							<PanelBody
+								Renderer={query.panelDefinition.Renderer}
+								panel={panel}
+								panelId={panelId}
+								data={query.data}
+								isFetching={query.isFetching}
+								isPreviousData={query.isPreviousData}
+								error={query.error}
+								refetch={query.refetch}
+								onDragSelect={query.onDragSelect}
+								panelMode={panelMode}
+								dashboardPreference={query.dashboardPreference}
+								searchTerm={searchable ? searchTerm : undefined}
+								pagination={query.pagination}
+								onCloseStandaloneView={query.onCloseStandaloneView}
+								onClick={query.onClick}
+								enableDrillDown={query.enableDrillDown}
+							/>
+						</>
+					) : (
+						staticDraft && (
+							<>
+								{!isPanelHeaderHidden(panel.spec) && (
+									<PanelHeader
+										mode="static"
+										panelId={panelId}
+										panel={panel}
+										hideActions
+									/>
+								)}
+								<StaticPanelBody
+									Renderer={staticDraft.panelDefinition.Renderer}
+									panel={panel}
+									panelId={panelId}
+									panelMode={panelMode}
+									onChangeText={staticDraft.onChangeText}
+								/>
+							</>
+						)
+					)}
 				</div>
 			</div>
 		</div>

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/QueryEditorBody.tsx

@@ -0,0 +1,333 @@
+import { useCallback, useMemo } from 'react';
+import { toast } from '@signozhq/ui/sonner';
+import { ConfigProvider } from 'antd';
+import {
+	type DashboardtypesPanelDTO,
+	TelemetrytypesSignalDTO,
+} from 'api/generated/services/sigNoz.schemas';
+import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
+import type { RenderableQueryPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelDefinition';
+import type { PanelKind } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelKind';
+import { toPanelType } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelKind';
+import {
+	type SectionConfig,
+	type SectionControls,
+	SectionKind,
+} from 'pages/DashboardPage/DashboardContainer/Panels/types/sections';
+import { getBuilderQueries } from 'pages/DashboardPage/DashboardContainer/Panels/utils/getBuilderQueries';
+import { useErrorModal } from 'providers/ErrorModalProvider';
+
+import { useDashboardEditContext } from '../hooks/useDashboardEditContext';
+import { getExecStats } from '../queryV5/v5ResponseData';
+import { usePanelInteractions } from '../PanelsAndSectionsLayout/Panel/hooks/usePanelInteractions';
+import { useScrollIntoViewStore } from '../store/useScrollIntoViewStore';
+import ConfigPane from './ConfigPane/ConfigPane';
+import Header from './Header/Header';
+import PanelEditorLayout, {
+	PANE_SPLIT,
+} from './PanelEditorLayout/PanelEditorLayout';
+import PreviewPane from './PreviewPane/PreviewPane';
+import { useLegendSeries } from './hooks/useLegendSeries';
+import type { PanelEditorDraftApi } from './types';
+import { usePanelEditSession } from './hooks/usePanelEditSession';
+import { usePanelEditorSave } from './hooks/usePanelEditorSave';
+import { useSeedMetricUnit } from './hooks/useSeedMetricUnit';
+import { useSeedNewListColumns } from './hooks/useSeedNewListColumns';
+import { useSwitchColumnsOnSignalChange } from './hooks/useSwitchColumnsOnSignalChange';
+import { useSwitchToViewMode } from './hooks/useSwitchToViewMode';
+import { useTableColumns } from './hooks/useTableColumns';
+
+import logEvent from '@/api/common/logEvent';
+import { DashboardEvents } from '../../constants/events';
+
+// The query builder sits in an `overflow:hidden` resizable pane, so its Select
+// popups (group-by, order-by, having, …) clip when they open into the short pane.
+// Portal them to the document body; the query-builder filters honor this via
+// `useSelectPopupContainer`. Scoped to the full-page editor — the View modal keeps
+// its own `ConfigProvider` so popups stay inside the focus-trapped dialog.
+const getBodyPopupContainer = (): HTMLElement => document.body;
+
+interface QueryEditorBodyProps {
+	dashboardId: string;
+	panelId: string;
+	panel: DashboardtypesPanelDTO;
+	/**
+	 * The persisted panel the dirty check compares against. Distinct from `panel` (the
+	 * seed), which may carry unsaved edits handed off from View mode. Omit for a new panel.
+	 */
+	savedPanel?: DashboardtypesPanelDTO;
+	/** Creating a new panel (seeded default) vs editing an existing one. */
+	isNew?: boolean;
+	/** Target section for a new panel; falls back to the last/new section. */
+	layoutIndex?: number;
+	/** Leave the editor (navigate back to the dashboard) without saving. */
+	onClose: () => void;
+	/** Called after a successful save — navigates back to the dashboard. */
+	onSaved: () => void;
+	/** Draft state, owned by the shell so it survives an authoring-mode switch. */
+	draftApi: PanelEditorDraftApi;
+	/** The draft kind's definition, narrowed by the shell's fork. */
+	panelDefinition: RenderableQueryPanelDefinition;
+	/** Kind switch, owned by the shell (its cache must survive the fork swap). */
+	onChangePanelKind: (kind: PanelKind) => void;
+}
+
+/**
+ * The query-kind editor body: a resizable split with the live preview + the
+ * kind's editor pane on the left and the config pane on the right. Draft and
+ * kind-switch state live in the shell; this body owns the query session and the
+ * save round-trip.
+ */
+function QueryEditorBody({
+	dashboardId,
+	panelId,
+	panel,
+	savedPanel,
+	isNew = false,
+	layoutIndex,
+	onClose,
+	onSaved,
+	draftApi,
+	panelDefinition,
+	onChangePanelKind,
+}: QueryEditorBodyProps): JSX.Element {
+	// Read here rather than taken as props: this renders inside a loaded dashboard
+	// subtree, so it resolves the same context every other consumer does.
+	const { isEditable, editChecks, editDisabledTooltip } =
+		useDashboardEditContext();
+
+	// Shared editing pipeline (draft + query + staged-query sync + kind switch). A new
+	// panel always serializes its seed query and seeds the builder's default signal.
+	const {
+		draft,
+		spec,
+		setSpec,
+		isSpecDirty,
+		query,
+		runQuery,
+		isQueryDirty,
+		buildSaveSpec,
+	} = usePanelEditSession({
+		panel,
+		panelId,
+		savedPanel,
+		alwaysSerializeQuery: isNew,
+		seedQuerySignal: true,
+		draftApi,
+	});
+	const {
+		data,
+		isFetching,
+		isPreviousData,
+		error,
+		cancelQuery,
+		refetch,
+		pagination,
+	} = query;
+
+	// Live query type (the selected tab) — the type switcher disables kinds that can't be
+	// authored in it. Read from the provider, not the spec: a new panel's spec carries no
+	// query until staged, so the spec would lag the tab.
+	const { currentQuery } = useQueryBuilder();
+	const { save, isSaving } = usePanelEditorSave({
+		dashboardId,
+		panelId,
+		isNew,
+		layoutIndex,
+	});
+
+	const panelKind = draft.spec.plugin.kind;
+	// The kind's own lower pane (query builder, plus e.g. List's columns footer).
+	const { EditorPane } = panelDefinition;
+
+	// The current kind's Formatting controls — which unit field (panel-wide `unit` vs
+	// per-column `columnUnits`) a metric unit may seed into. Same source of truth the
+	// switch-time seeding in `buildPluginSpec` reads, so the two stay in lockstep.
+	const formattingControls = useMemo(():
+		| SectionControls[SectionKind.Formatting]
+		| undefined => {
+		const section = panelDefinition.sections.find(
+			(
+				candidate,
+			): candidate is Extract<SectionConfig, { kind: SectionKind.Formatting }> =>
+				candidate.kind === SectionKind.Formatting,
+		);
+		return section?.controls;
+	}, [panelDefinition]);
+
+	// Unsaved-edits flag driving the discard confirmation on close (Save is always
+	// enabled). Read the seed `panel`, not the live `draft` — the staged-query sync
+	// commits the seed into the draft on open, which would falsely dirty an untouched
+	// query-less new panel.
+	const isDirty = useMemo(
+		() => isSpecDirty || isQueryDirty || (isNew && panel.spec.queries.length > 0),
+		[isSpecDirty, isQueryDirty, isNew, panel.spec.queries.length],
+	);
+
+	const isListPanel = panelKind === 'signoz/ListPanel';
+	// The builder-query `signal` literal matches the TelemetrytypesSignalDTO enum
+	// values; cast at this boundary (as ConfigPane does) so the columns editor's
+	// field-key lookup is typed.
+	const listSignal =
+		(getBuilderQueries(spec.queries)[0]?.signal as TelemetrytypesSignalDTO) ||
+		TelemetrytypesSignalDTO.logs;
+
+	// Swap the List panel's columns to the new signal's defaults on signal change
+	// (V1 had a per-signal field list; V2 has one `selectFields`).
+	useSwitchColumnsOnSignalChange({
+		enabled: isListPanel,
+		signal: listSignal,
+		spec,
+		onChangeSpec: setSpec,
+	});
+
+	// Seed a new List panel's columns from the query's resolved signal (not the kind's
+	// default logs signal) so a traces-List export gets traces columns, not logs.
+	useSeedNewListColumns({
+		enabled: isNew && isListPanel,
+		signal: listSignal,
+		spec,
+		onChangeSpec: setSpec,
+	});
+
+	// Drag-to-zoom on the preview updates the URL-synced time window, as on the dashboard.
+	const { onDragSelect } = usePanelInteractions();
+	const legendSeries = useLegendSeries(draft, data);
+	const tableColumns = useTableColumns(draft, data);
+
+	// Resolves the selected metric's unit and, on a new panel, seeds it into the right
+	// formatting field for the kind (panel-wide `unit`, or per-column `columnUnits` for
+	// a Table once results resolve them). `metricUnit` also drives the mismatch warning.
+	const { metricUnit } = useSeedMetricUnit({
+		isNewPanel: isNew,
+		formattingControls,
+		columns: tableColumns,
+		spec,
+		onChangeSpec: setSpec,
+	});
+
+	// Smallest query step interval (seconds) — the floor for the span-gaps
+	// threshold. Undefined until results carry step metadata.
+	const stepInterval = useMemo((): number | undefined => {
+		const intervals = getExecStats(data.response)?.stepIntervals;
+		const values = intervals ? Object.values(intervals) : [];
+		return values.length ? Math.min(...values) : undefined;
+	}, [data.response]);
+
+	const onSwitchToView = useSwitchToViewMode({
+		dashboardId,
+		panelId,
+		panelType: toPanelType(panelKind),
+		query: currentQuery,
+		spec: draft.spec,
+	});
+
+	const setScrollTargetId = useScrollIntoViewStore((s) => s.setScrollTargetId);
+	const { showErrorModal } = useErrorModal();
+
+	const onSave = useCallback(async (): Promise<void> => {
+		if (!isEditable) {
+			return;
+		}
+		try {
+			// Bake the live query into the spec so unstaged edits are saved too.
+			const savedPanelId = await save(buildSaveSpec(draft.spec));
+			// Reveal the saved panel once the dashboard re-renders.
+			setScrollTargetId(savedPanelId);
+			toast.success('Panel saved', {
+				position: 'top-center',
+			});
+			onSaved();
+		} catch (err) {
+			showErrorModal(err);
+		}
+	}, [
+		isEditable,
+		save,
+		buildSaveSpec,
+		draft.spec,
+		setScrollTargetId,
+		onSaved,
+		showErrorModal,
+	]);
+
+	// Leaving an existing panel's editor (without saving) still returns to it, so
+	// the dashboard lands on that panel rather than scrolled to the top. A new,
+	// unsaved panel has no persisted target, so there's nothing to reveal.
+	const onCloseEditor = useCallback((): void => {
+		if (!isNew) {
+			setScrollTargetId(panelId);
+		}
+		onClose();
+	}, [isNew, panelId, setScrollTargetId, onClose]);
+
+	const switchToViewMode = useCallback((): void => {
+		logEvent(DashboardEvents.SWITCH_TO_VIEW_MODE, {
+			panelId: panelId,
+		});
+		onSwitchToView();
+	}, [onSwitchToView]);
+
+	return (
+		<PanelEditorLayout
+			split={PANE_SPLIT.query}
+			header={
+				<Header
+					isDirty={isDirty}
+					isSaving={isSaving}
+					showSwitchToView={!isNew}
+					readOnly={!isEditable}
+					readOnlyChecks={editChecks}
+					readOnlyTooltip={editDisabledTooltip}
+					onSave={onSave}
+					onSwitchToView={switchToViewMode}
+					onClose={onCloseEditor}
+				/>
+			}
+			preview={
+				<PreviewPane
+					mode="query"
+					panelId={panelId}
+					panel={draft}
+					panelDefinition={panelDefinition}
+					data={data}
+					isFetching={isFetching}
+					isPreviousData={isPreviousData}
+					error={error}
+					refetch={refetch}
+					onDragSelect={onDragSelect}
+					pagination={pagination}
+				/>
+			}
+			editor={
+				<ConfigProvider getPopupContainer={getBodyPopupContainer}>
+					<EditorPane
+						panelDefinition={panelDefinition}
+						signal={listSignal}
+						isLoadingQueries={isFetching}
+						onStageRunQuery={runQuery}
+						onCancelQuery={cancelQuery}
+						spec={spec}
+						onChangeSpec={setSpec}
+					/>
+				</ConfigProvider>
+			}
+			config={
+				<ConfigPane
+					panel={draft}
+					panelId={panelId}
+					spec={spec}
+					onChangeSpec={setSpec}
+					onChangePanelKind={onChangePanelKind}
+					queryType={currentQuery.queryType}
+					legendSeries={legendSeries}
+					tableColumns={tableColumns}
+					stepInterval={stepInterval}
+					metricUnit={metricUnit}
+				/>
+			}
+		/>
+	);
+}
+
+export default QueryEditorBody;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/StaticEditorBody.tsx

@@ -0,0 +1,134 @@
+import { useCallback } from 'react';
+import { toast } from '@signozhq/ui/sonner';
+import { PanelMode } from 'lib/visualization/panels/types';
+import type { RenderableStaticPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelDefinition';
+import type { PanelKind } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelKind';
+import { EQueryType } from 'types/common/dashboard';
+import { useErrorModal } from 'providers/ErrorModalProvider';
+
+import { useDashboardEditContext } from '../hooks/useDashboardEditContext';
+import { useScrollIntoViewStore } from '../store/useScrollIntoViewStore';
+import ConfigPane from './ConfigPane/ConfigPane';
+import Header from './Header/Header';
+import PanelEditorLayout, {
+	PANE_SPLIT,
+} from './PanelEditorLayout/PanelEditorLayout';
+import PreviewPane from './PreviewPane/PreviewPane';
+import type { PanelEditorContainerProps } from './index';
+import type { PanelEditorDraftApi } from './types';
+import { withPanelText } from '../Panels/utils/withPanelText';
+import { usePanelEditorSave } from './hooks/usePanelEditorSave';
+
+interface StaticEditorBodyProps extends PanelEditorContainerProps {
+	draftApi: PanelEditorDraftApi;
+	panelDefinition: RenderableStaticPanelDefinition;
+	onChangePanelKind: (kind: PanelKind) => void;
+}
+
+/**
+ * Editor body for a kind that renders from its own plugin spec: the kind's
+ * editor pane under a live preview of the draft, the config pane on the right.
+ * No query session, no builder seeding, no staged-run — the preview re-renders
+ * from the draft spec on every edit.
+ */
+function StaticEditorBody({
+	dashboardId,
+	panelId,
+	isNew = false,
+	layoutIndex,
+	onClose,
+	onSaved,
+	draftApi,
+	panelDefinition,
+	onChangePanelKind,
+}: StaticEditorBodyProps): JSX.Element {
+	// Read here rather than taken as props: this renders inside a loaded dashboard
+	// subtree, so it resolves the same context every other consumer does.
+	const { isEditable, editChecks, editDisabledTooltip } =
+		useDashboardEditContext();
+
+	const { draft, spec, setSpec, isSpecDirty } = draftApi;
+	const { EditorPane } = panelDefinition;
+
+	const { save, isSaving } = usePanelEditorSave({
+		dashboardId,
+		panelId,
+		isNew,
+		layoutIndex,
+	});
+
+	const setScrollTargetId = useScrollIntoViewStore((s) => s.setScrollTargetId);
+	const { showErrorModal } = useErrorModal();
+
+	const onSave = useCallback(async (): Promise<void> => {
+		if (!isEditable) {
+			return;
+		}
+		try {
+			// `queries: []` is the only shape the API accepts for a static kind.
+			const savedPanelId = await save({ ...draft.spec, queries: [] });
+			setScrollTargetId(savedPanelId);
+			toast.success('Panel saved', {
+				position: 'top-center',
+			});
+			onSaved();
+		} catch (err) {
+			showErrorModal(err);
+		}
+	}, [isEditable, save, draft.spec, setScrollTargetId, onSaved, showErrorModal]);
+
+	const onChangeText = useCallback(
+		(text: string): void => setSpec(withPanelText(spec, text)),
+		[spec, setSpec],
+	);
+
+	const onCloseEditor = useCallback((): void => {
+		if (!isNew) {
+			setScrollTargetId(panelId);
+		}
+		onClose();
+	}, [isNew, panelId, setScrollTargetId, onClose]);
+
+	return (
+		<PanelEditorLayout
+			split={PANE_SPLIT.static}
+			header={
+				<Header
+					isDirty={isSpecDirty}
+					isSaving={isSaving}
+					showSwitchToView={false}
+					readOnly={!isEditable}
+					readOnlyChecks={editChecks}
+					readOnlyTooltip={editDisabledTooltip}
+					onSave={onSave}
+					onClose={onCloseEditor}
+				/>
+			}
+			preview={
+				<PreviewPane
+					mode="static"
+					panelId={panelId}
+					panel={draft}
+					panelDefinition={panelDefinition}
+					panelMode={PanelMode.DASHBOARD_EDIT}
+					onChangeText={isEditable ? onChangeText : undefined}
+				/>
+			}
+			editor={<EditorPane spec={spec} onChangeSpec={setSpec} />}
+			config={
+				<ConfigPane
+					panel={draft}
+					panelId={panelId}
+					spec={spec}
+					onChangeSpec={setSpec}
+					onChangePanelKind={onChangePanelKind}
+					queryType={EQueryType.QUERY_BUILDER}
+					legendSeries={[]}
+					tableColumns={[]}
+				/>
+			}
+		/>
+	);
+}
+
+export default StaticEditorBody;

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/__tests__/PanelEditorContainer.test.tsx

@@ -3,6 +3,7 @@ import userEvent from '@testing-library/user-event';
 import { toast } from '@signozhq/ui/sonner';
 import type { DashboardtypesPanelDTO } from 'api/generated/services/sigNoz.schemas';
 import { PANEL_TYPES } from 'constants/queryBuilder';
+import { getSupportedSignals } from 'pages/DashboardPage/DashboardContainer/Panels/capabilities';
 import { getPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/registry';
 
 import PanelEditorContainer from '../index';
@@ -250,7 +251,12 @@ describe('PanelEditorContainer composition', () => {
 			}),
 		);
 		expect(mockQbProps).toHaveBeenCalledWith(
-			expect.objectContaining({ panelKind: 'signoz/TimeSeriesPanel' }),
+			expect.objectContaining({
+				panelDefinition: expect.objectContaining({
+					kind: 'signoz/TimeSeriesPanel',
+					mode: 'query',
+				}),
+			}),
 		);
 		expect(mockConfigProps).toHaveBeenCalledWith(
 			expect.objectContaining({
@@ -274,7 +280,7 @@ describe('PanelEditorContainer composition', () => {
 				setSpec: mockSetSpec,
 				refetch: mockRefetch,
 				alwaysSerializeQuery: false,
-				signal: getPanelDefinition('signoz/TimeSeriesPanel').supportedSignals[0],
+				signal: getSupportedSignals('signoz/TimeSeriesPanel')[0],
 			}),
 		);
 		expect(mockUseTypeSwitch).toHaveBeenCalledWith(

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/__tests__/StaticEditorBody.test.tsx

@@ -0,0 +1,142 @@
+import { fireEvent, render, screen, waitFor } from '@testing-library/react';
+import type { DashboardtypesPanelDTO } from 'api/generated/services/sigNoz.schemas';
+import type { RenderableStaticPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelDefinition';
+
+import StaticEditorBody from '../StaticEditorBody';
+import type { PanelEditorDraftApi } from '../types';
+import { usePanelEditorSave } from '../hooks/usePanelEditorSave';
+
+jest.mock('../hooks/usePanelEditorSave', () => ({
+	usePanelEditorSave: jest.fn(),
+}));
+// Chrome + collaborators stubbed: this suite asserts the static body's wiring —
+// the save shape above all — not their internals.
+jest.mock('../Header/Header', () => ({
+	__esModule: true,
+	default: ({ onSave }: { onSave: () => void }): JSX.Element => (
+		<button type="button" data-testid="header-save" onClick={onSave}>
+			Save
+		</button>
+	),
+}));
+jest.mock('../ConfigPane/ConfigPane', () => ({
+	__esModule: true,
+	default: (): JSX.Element => <div data-testid="config-pane" />,
+}));
+jest.mock(
+	'pages/DashboardPage/DashboardContainer/PanelsAndSectionsLayout/Panel/PanelHeader/PanelHeader',
+	() => ({ __esModule: true, default: (): null => null }),
+);
+jest.mock(
+	'pages/DashboardPage/DashboardContainer/PanelsAndSectionsLayout/Panel/StaticPanelBody/StaticPanelBody',
+	() => ({
+		__esModule: true,
+		default: (): JSX.Element => <div data-testid="static-preview-body" />,
+	}),
+);
+jest.mock('@signozhq/ui/sonner', () => ({ toast: { success: jest.fn() } }));
+jest.mock('providers/ErrorModalProvider', () => ({
+	useErrorModal: (): unknown => ({ showErrorModal: jest.fn() }),
+}));
+// The derivation has its own suite (useDashboardEditContext.authz); these cases are
+// about what the static body does with a given edit context, so control it directly.
+let editContext = { isEditable: true, editChecks: [], editDisabledTooltip: '' };
+jest.mock(
+	'pages/DashboardPage/DashboardContainer/hooks/useDashboardEditContext',
+	() => ({
+		useDashboardEditContext: (): typeof editContext => editContext,
+	}),
+);
+
+const mockUseSave = usePanelEditorSave as jest.Mock;
+
+// The draft deliberately carries a stray query: Save must strip it — the API
+// rejects anything but [] for a static kind.
+const draft = {
+	kind: 'Panel',
+	spec: {
+		display: { name: 'Runbook' },
+		plugin: { kind: 'signoz/TextPanel', spec: { text: '# hi' } },
+		queries: [{ spec: {} }],
+	},
+} as unknown as DashboardtypesPanelDTO;
+
+const draftApi: PanelEditorDraftApi = {
+	draft,
+	spec: draft.spec,
+	setSpec: jest.fn(),
+	isSpecDirty: false,
+	reset: jest.fn(),
+};
+
+const definition = {
+	kind: 'signoz/TextPanel',
+	displayName: 'Text',
+	sections: [],
+	actions: {},
+	mode: 'static',
+	Renderer: (): null => null,
+	EditorPane: (): JSX.Element => <div data-testid="editor-pane" />,
+} as unknown as RenderableStaticPanelDefinition;
+
+function renderBody(): void {
+	render(
+		<StaticEditorBody
+			dashboardId="d1"
+			panelId="p1"
+			panel={draft}
+			onClose={jest.fn()}
+			onSaved={jest.fn()}
+			draftApi={draftApi}
+			panelDefinition={definition}
+			onChangePanelKind={jest.fn()}
+		/>,
+	);
+}
+
+describe('StaticEditorBody', () => {
+	beforeEach(() => {
+		mockUseSave.mockReset();
+		editContext = { isEditable: true, editChecks: [], editDisabledTooltip: '' };
+		mockUseSave.mockReturnValue({
+			save: jest.fn().mockResolvedValue('p1'),
+			isSaving: false,
+		});
+	});
+
+	it('renders the editor pane and the live preview, no query builder', () => {
+		renderBody();
+
+		expect(screen.getByTestId('editor-pane')).toBeInTheDocument();
+		expect(screen.getByTestId('static-preview-body')).toBeInTheDocument();
+		expect(
+			screen.queryByTestId('panel-editor-v2-query-builder'),
+		).not.toBeInTheDocument();
+	});
+
+	it('saves the spec with queries forced to [] — the only shape the API accepts', async () => {
+		const save = jest.fn().mockResolvedValue('p1');
+		mockUseSave.mockReturnValue({ save, isSaving: false });
+		renderBody();
+
+		fireEvent.click(screen.getByTestId('header-save'));
+
+		await waitFor(() => expect(save).toHaveBeenCalledTimes(1));
+		expect(save).toHaveBeenCalledWith({ ...draft.spec, queries: [] });
+	});
+
+	it('does not save when the dashboard is not editable', () => {
+		const save = jest.fn();
+		mockUseSave.mockReturnValue({ save, isSaving: false });
+		editContext = {
+			isEditable: false,
+			editChecks: [],
+			editDisabledTooltip: 'Dashboard is locked',
+		};
+		renderBody();
+
+		fireEvent.click(screen.getByTestId('header-save'));
+
+		expect(save).not.toHaveBeenCalled();
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/__tests__/newPanelRoute.test.ts

@@ -115,3 +115,15 @@ describe('newPanelRoute', () => {
 		});
 	});
 });
+
+describe('parseNewPanelKind — kinds without a legacy panel type', () => {
+	it('accepts a registered static kind', () => {
+		expect(parseNewPanelKind('new', '?panelKind=signoz%2FTextPanel')).toBe(
+			'signoz/TextPanel',
+		);
+	});
+
+	it('still rejects a kind that is not registered', () => {
+		expect(parseNewPanelKind('new', '?panelKind=signoz%2FNopePanel')).toBeNull();
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/__tests__/panelEditorUrlQuery.promql.test.tsx

@@ -18,6 +18,8 @@ import appStore from 'store';
 
 import { useOpenPanelEditor } from '../../hooks/useOpenPanelEditor';
 import { usePanelEditorQuerySync } from '../hooks/usePanelEditorQuerySync';
+import { requireQueryPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/capabilities';
+
 import PanelEditorQueryBuilder from '../PanelEditorQueryBuilder/PanelEditorQueryBuilder';
 
 // jest.config maps the real hook to a no-op mock; this suite needs real navigation.
@@ -83,7 +85,7 @@ function EditorRoute(): JSX.Element {
 
 	return (
 		<PanelEditorQueryBuilder
-			panelKind="signoz/TimeSeriesPanel"
+			panelDefinition={requireQueryPanelDefinition('signoz/TimeSeriesPanel')}
 			signal={TelemetrytypesSignalDTO.metrics}
 			isLoadingQueries={false}
 			onStageRunQuery={noop}

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/hooks/__tests__/usePanelTypeSwitch.test.ts

@@ -19,6 +19,10 @@ jest.mock('lib/query/panelQuery', () => ({
 }));
 jest.mock('../../../Panels/capabilities', () => ({
 	resolveQueryType: jest.fn(),
+	// Real predicate: these specs use real (query) kinds and the static path is
+	// exercised through its own cases below.
+	isStaticPanelKind: jest.requireActual('../../../Panels/capabilities')
+		.isStaticPanelKind,
 }));
 jest.mock('../../../queryV5/persesQueryAdapters', () => ({
 	toPerses: jest.fn(),

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/hooks/usePanelEditSession.ts

@@ -4,24 +4,19 @@ import type {
 	TelemetrytypesSignalDTO,
 } from 'api/generated/services/sigNoz.schemas';
 import type { PANEL_TYPES } from 'constants/queryBuilder';
-import {
-	getPanelDefinition,
-	isPanelKindSupported,
-} from 'pages/DashboardPage/DashboardContainer/Panels/registry';
-import type { RenderablePanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelDefinition';
-import {
-	PANEL_KIND_TO_PANEL_TYPE,
-	type PanelKind,
-} from 'pages/DashboardPage/DashboardContainer/Panels/types/panelKind';
+import { requireQueryPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/capabilities';
+import { isPanelKindSupported } from 'pages/DashboardPage/DashboardContainer/Panels/registry';
+import type { RenderableQueryPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelDefinition';
+import { toPanelType } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelKind';
 import {
 	usePanelQuery,
 	type PanelQueryTimeOverride,
 	type UsePanelQueryResult,
 } from 'pages/DashboardPage/DashboardContainer/hooks/usePanelQuery';
 
+import type { PanelEditorDraftApi } from '../types';
 import { usePanelEditorDraft } from './usePanelEditorDraft';
 import { usePanelEditorQuerySync } from './usePanelEditorQuerySync';
-import { usePanelTypeSwitch } from './usePanelTypeSwitch';
 
 interface UsePanelEditSessionArgs {
 	panel: DashboardtypesPanelDTO;
@@ -38,6 +33,12 @@ interface UsePanelEditSessionArgs {
 	alwaysSerializeQuery?: boolean;
 	/** Seed an empty builder with the kind's default signal (new panels) — off for drilldown. */
 	seedQuerySignal?: boolean;
+	/**
+	 * Externally-owned draft. The editor shell hoists it above its mode fork so a
+	 * kind switch across modes survives the branch swap; hosts without a fork (the
+	 * View modal, until it forks) omit it and the session owns the draft.
+	 */
+	draftApi?: PanelEditorDraftApi;
 }
 
 export interface UsePanelEditSessionReturn {
@@ -50,7 +51,7 @@ export interface UsePanelEditSessionReturn {
 	reset: () => void;
 	/** Draft kind → V1 panel type (drives the query builder + preview). */
 	panelType: PANEL_TYPES;
-	panelDefinition: RenderablePanelDefinition;
+	panelDefinition: RenderableQueryPanelDefinition;
 	/** The kind's first supported signal — seeds new queries/columns. */
 	defaultSignal: TelemetrytypesSignalDTO;
 	/** Shared query result for the draft over the resolved time window. */
@@ -62,8 +63,6 @@ export interface UsePanelEditSessionReturn {
 	buildSaveSpec: (
 		spec: DashboardtypesPanelSpecDTO,
 	) => DashboardtypesPanelSpecDTO;
-	/** Switch the draft's visualization kind in place (reversible per session). */
-	onChangePanelKind: (kind: PanelKind) => void;
 }
 
 /**
@@ -80,15 +79,18 @@ export function usePanelEditSession({
 	time,
 	alwaysSerializeQuery = false,
 	seedQuerySignal = false,
+	draftApi,
 }: UsePanelEditSessionArgs): UsePanelEditSessionReturn {
-	const { draft, spec, setSpec, isSpecDirty, reset } = usePanelEditorDraft(
-		panel,
-		savedPanel,
-	);
+	// Called unconditionally (hooks rules); unused when a hoisted draft is passed in.
+	const internalDraftApi = usePanelEditorDraft(panel, savedPanel);
+	const { draft, spec, setSpec, isSpecDirty, reset } =
+		draftApi ?? internalDraftApi;
 
 	const panelKind = draft.spec.plugin.kind;
-	const panelDefinition = getPanelDefinition(panelKind);
-	const panelType = PANEL_KIND_TO_PANEL_TYPE[panelKind];
+	// Hosts fork on `definition.mode` before mounting this session (the editor and
+	// View modal shells) — asserted rather than assumed.
+	const panelDefinition = requireQueryPanelDefinition(panelKind);
+	const panelType = toPanelType(panelKind);
 	const defaultSignal = panelDefinition.supportedSignals[0];
 
 	const query = usePanelQuery({
@@ -109,12 +111,6 @@ export function usePanelEditSession({
 		savedQueries: savedPanel?.spec.queries,
 	});
 
-	const { onChangePanelKind } = usePanelTypeSwitch({
-		spec: draft.spec,
-		panelType,
-		setSpec,
-	});
-
 	return {
 		draft,
 		spec,
@@ -128,6 +124,5 @@ export function usePanelEditSession({
 		runQuery,
 		isQueryDirty,
 		buildSaveSpec,
-		onChangePanelKind,
 	};
 }

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/hooks/usePanelTypeSwitch.ts

@@ -18,11 +18,8 @@ import type {
 	Query,
 } from 'types/api/queryBuilder/queryBuilderData';
 
-import { resolveQueryType } from '../../Panels/capabilities';
-import {
-	PANEL_KIND_TO_PANEL_TYPE,
-	type PanelKind,
-} from '../../Panels/types/panelKind';
+import { isStaticPanelKind, resolveQueryType } from '../../Panels/capabilities';
+import { toPanelType, type PanelKind } from '../../Panels/types/panelKind';
 import { getBuilderQueries } from '../../Panels/utils/getBuilderQueries';
 import { toPerses } from '../../queryV5/persesQueryAdapters';
 import {
@@ -110,7 +107,7 @@ export function usePanelTypeSwitch({
 				builderQuery: query,
 			});
 
-			const newPanelType = PANEL_KIND_TO_PANEL_TYPE[newKind];
+			const newPanelType = toPanelType(newKind);
 
 			// Only `plugin` needs a cast: it's a discriminated union over `kind`, and a
 			// dynamically-chosen kind can't be correlated with its spec statically (as in
@@ -128,11 +125,25 @@ export function usePanelTypeSwitch({
 				queries,
 			});
 
-			// Revisit → restore the stash verbatim (the reversibility path).
+			// Revisit → restore the stash verbatim (the reversibility path). A static
+			// kind's stash carries `queries: []` and its builder query is untouched —
+			// there is no builder to re-seed for it.
 			const cached = cacheRef.current.get(newKind);
 			if (cached) {
 				setSpec(buildSpec(cached.pluginSpec, cached.queries));
-				redirectWithQueryBuilderData(cached.builderQuery);
+				if (!isStaticPanelKind(newKind)) {
+					redirectWithQueryBuilderData(cached.builderQuery);
+				}
+				return;
+			}
+
+			// First visit to a static kind → fresh spec from its sections, queries
+			// emptied (the API accepts nothing else), and the query builder left as-is:
+			// the stash above keeps the old kind's query for the return trip.
+			if (isStaticPanelKind(newKind)) {
+				const signal = getBuilderQueries(currentSpec.queries)[0]
+					?.signal as TelemetrytypesSignalDTO;
+				setSpec(buildSpec(getSwitchedPluginSpec(currentSpec, newKind, signal), []));
 				return;
 			}
 

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/index.tsx

@@ -1,57 +1,13 @@
-import { useCallback, useMemo } from 'react';
-import {
-	ResizableHandle,
-	ResizablePanel,
-	ResizablePanelGroup,
-	useDefaultLayout,
-} from '@signozhq/ui/resizable';
-import { toast } from '@signozhq/ui/sonner';
-import { ConfigProvider } from 'antd';
-import {
-	type DashboardtypesPanelDTO,
-	TelemetrytypesSignalDTO,
-} from 'api/generated/services/sigNoz.schemas';
-import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
-import { PANEL_KIND_TO_PANEL_TYPE } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelKind';
-import {
-	type SectionConfig,
-	type SectionControls,
-	SectionKind,
-} from 'pages/DashboardPage/DashboardContainer/Panels/types/sections';
-import { getBuilderQueries } from 'pages/DashboardPage/DashboardContainer/Panels/utils/getBuilderQueries';
-import { useErrorModal } from 'providers/ErrorModalProvider';
+import type { DashboardtypesPanelDTO } from 'api/generated/services/sigNoz.schemas';
+import { getPanelDefinition } from 'pages/DashboardPage/DashboardContainer/Panels/registry';
+import { toPanelType } from 'pages/DashboardPage/DashboardContainer/Panels/types/panelKind';
 
-import { useDashboardEditContext } from '../hooks/useDashboardEditContext';
-import { getExecStats } from '../queryV5/v5ResponseData';
-import { usePanelInteractions } from '../PanelsAndSectionsLayout/Panel/hooks/usePanelInteractions';
-import { useScrollIntoViewStore } from '../store/useScrollIntoViewStore';
-import ConfigPane from './ConfigPane/ConfigPane';
-import Header from './Header/Header';
-import layoutStorage from './layoutStorage';
-import PanelEditorQueryBuilder from './PanelEditorQueryBuilder/PanelEditorQueryBuilder';
-import PreviewPane from './PreviewPane/PreviewPane';
-import { useLegendSeries } from './hooks/useLegendSeries';
-import { usePanelEditSession } from './hooks/usePanelEditSession';
-import { usePanelEditorSave } from './hooks/usePanelEditorSave';
-import { useSeedMetricUnit } from './hooks/useSeedMetricUnit';
-import { useSeedNewListColumns } from './hooks/useSeedNewListColumns';
-import { useSwitchColumnsOnSignalChange } from './hooks/useSwitchColumnsOnSignalChange';
-import { useSwitchToViewMode } from './hooks/useSwitchToViewMode';
-import { useTableColumns } from './hooks/useTableColumns';
-import ListColumnsEditor from './ListColumnsEditor/ListColumnsEditor';
+import QueryEditorBody from './QueryEditorBody';
+import StaticEditorBody from './StaticEditorBody';
+import { usePanelEditorDraft } from './hooks/usePanelEditorDraft';
+import { usePanelTypeSwitch } from './hooks/usePanelTypeSwitch';
 
-import styles from './PanelEditor.module.scss';
-import logEvent from '@/api/common/logEvent';
-import { DashboardEvents } from '../../constants/events';
-
-// The query builder sits in an `overflow:hidden` resizable pane, so its Select
-// popups (group-by, order-by, having, …) clip when they open into the short pane.
-// Portal them to the document body; the query-builder filters honor this via
-// `useSelectPopupContainer`. Scoped to the full-page editor — the View modal keeps
-// its own `ConfigProvider` so popups stay inside the focus-trapped dialog.
-const getBodyPopupContainer = (): HTMLElement => document.body;
-
-interface PanelEditorContainerProps {
+export interface PanelEditorContainerProps {
 	dashboardId: string;
 	panelId: string;
 	panel: DashboardtypesPanelDTO;
@@ -71,297 +27,42 @@ interface PanelEditorContainerProps {
 }
 
 /**
- * V2 panel editor page body: a resizable split with the live preview + query
- * builder on the left and the config pane on the right. Owns the draft state and
- * the save round-trip.
+ * V2 panel editor page shell. Owns exactly the state that must survive a switch
+ * between authoring modes — the draft and the kind-switch cache — and forks on
+ * the draft kind's `mode`: query kinds get the session-backed body, static kinds
+ * an editor pane over a live preview with no query machinery at all.
  */
-function PanelEditorContainer({
-	dashboardId,
-	panelId,
-	panel,
-	savedPanel,
-	isNew = false,
-	layoutIndex,
-	onClose,
-	onSaved,
-}: PanelEditorContainerProps): JSX.Element {
-	// Read here rather than taken as props: this renders inside a loaded dashboard
-	// subtree, so it resolves the same context every other consumer does.
-	const { isEditable, editChecks, editDisabledTooltip } =
-		useDashboardEditContext();
+function PanelEditorContainer(props: PanelEditorContainerProps): JSX.Element {
+	const { panel, savedPanel } = props;
+	const draftApi = usePanelEditorDraft(panel, savedPanel);
 
-	// Shared editing pipeline (draft + query + staged-query sync + kind switch). A new
-	// panel always serializes its seed query and seeds the builder's default signal.
-	const {
-		draft,
-		spec,
-		setSpec,
-		isSpecDirty,
-		panelDefinition,
-		query,
-		runQuery,
-		isQueryDirty,
-		buildSaveSpec,
-		onChangePanelKind,
-	} = usePanelEditSession({
-		panel,
-		panelId,
-		savedPanel,
-		alwaysSerializeQuery: isNew,
-		seedQuerySignal: true,
-	});
-	const {
-		data,
-		isFetching,
-		isPreviousData,
-		error,
-		cancelQuery,
-		refetch,
-		pagination,
-	} = query;
+	const panelKind = draftApi.draft.spec.plugin.kind;
+	const panelDefinition = getPanelDefinition(panelKind);
 
-	// Live query type (the selected tab) — the type switcher disables kinds that can't be
-	// authored in it. Read from the provider, not the spec: a new panel's spec carries no
-	// query until staged, so the spec would lag the tab.
-	const { currentQuery } = useQueryBuilder();
-	const { save, isSaving } = usePanelEditorSave({
-		dashboardId,
-		panelId,
-		isNew,
-		layoutIndex,
-	});
-	const { defaultLayout, onLayoutChanged } = useDefaultLayout({
-		id: 'panel-editor-v2',
-		storage: layoutStorage,
+	const { onChangePanelKind } = usePanelTypeSwitch({
+		spec: draftApi.draft.spec,
+		panelType: toPanelType(panelKind),
+		setSpec: draftApi.setSpec,
 	});
 
-	const {
-		defaultLayout: mainDefaultLayout,
-		onLayoutChanged: onMainLayoutChanged,
-	} = useDefaultLayout({
-		id: 'panel-editor-v2-main',
-		storage: layoutStorage,
-	});
-
-	const panelKind = draft.spec.plugin.kind;
-
-	// The current kind's Formatting controls — which unit field (panel-wide `unit` vs
-	// per-column `columnUnits`) a metric unit may seed into. Same source of truth the
-	// switch-time seeding in `buildPluginSpec` reads, so the two stay in lockstep.
-	const formattingControls = useMemo(():
-		| SectionControls[SectionKind.Formatting]
-		| undefined => {
-		const section = panelDefinition.sections.find(
-			(
-				candidate,
-			): candidate is Extract<SectionConfig, { kind: SectionKind.Formatting }> =>
-				candidate.kind === SectionKind.Formatting,
+	if (panelDefinition.mode === 'static') {
+		return (
+			<StaticEditorBody
+				{...props}
+				draftApi={draftApi}
+				panelDefinition={panelDefinition}
+				onChangePanelKind={onChangePanelKind}
+			/>
 		);
-		return section?.controls;
-	}, [panelDefinition]);
-
-	// Unsaved-edits flag driving the discard confirmation on close (Save is always
-	// enabled). Read the seed `panel`, not the live `draft` — the staged-query sync
-	// commits the seed into the draft on open, which would falsely dirty an untouched
-	// query-less new panel.
-	const isDirty = useMemo(
-		() => isSpecDirty || isQueryDirty || (isNew && panel.spec.queries.length > 0),
-		[isSpecDirty, isQueryDirty, isNew, panel.spec.queries.length],
-	);
-
-	const isListPanel = panelKind === 'signoz/ListPanel';
-	// The builder-query `signal` literal matches the TelemetrytypesSignalDTO enum
-	// values; cast at this boundary (as ConfigPane does) so the columns editor's
-	// field-key lookup is typed.
-	const listSignal =
-		(getBuilderQueries(spec.queries)[0]?.signal as TelemetrytypesSignalDTO) ||
-		TelemetrytypesSignalDTO.logs;
-
-	// Swap the List panel's columns to the new signal's defaults on signal change
-	// (V1 had a per-signal field list; V2 has one `selectFields`).
-	useSwitchColumnsOnSignalChange({
-		enabled: isListPanel,
-		signal: listSignal,
-		spec,
-		onChangeSpec: setSpec,
-	});
-
-	// Seed a new List panel's columns from the query's resolved signal (not the kind's
-	// default logs signal) so a traces-List export gets traces columns, not logs.
-	useSeedNewListColumns({
-		enabled: isNew && isListPanel,
-		signal: listSignal,
-		spec,
-		onChangeSpec: setSpec,
-	});
-
-	// Drag-to-zoom on the preview updates the URL-synced time window, as on the dashboard.
-	const { onDragSelect } = usePanelInteractions();
-	const legendSeries = useLegendSeries(draft, data);
-	const tableColumns = useTableColumns(draft, data);
-
-	// Resolves the selected metric's unit and, on a new panel, seeds it into the right
-	// formatting field for the kind (panel-wide `unit`, or per-column `columnUnits` for
-	// a Table once results resolve them). `metricUnit` also drives the mismatch warning.
-	const { metricUnit } = useSeedMetricUnit({
-		isNewPanel: isNew,
-		formattingControls,
-		columns: tableColumns,
-		spec,
-		onChangeSpec: setSpec,
-	});
-
-	// Smallest query step interval (seconds) — the floor for the span-gaps
-	// threshold. Undefined until results carry step metadata.
-	const stepInterval = useMemo((): number | undefined => {
-		const intervals = getExecStats(data.response)?.stepIntervals;
-		const values = intervals ? Object.values(intervals) : [];
-		return values.length ? Math.min(...values) : undefined;
-	}, [data.response]);
-
-	const onSwitchToView = useSwitchToViewMode({
-		dashboardId,
-		panelId,
-		panelType: PANEL_KIND_TO_PANEL_TYPE[panelKind],
-		query: currentQuery,
-		spec: draft.spec,
-	});
-
-	const setScrollTargetId = useScrollIntoViewStore((s) => s.setScrollTargetId);
-	const { showErrorModal } = useErrorModal();
-
-	const onSave = useCallback(async (): Promise<void> => {
-		if (!isEditable) {
-			return;
-		}
-		try {
-			// Bake the live query into the spec so unstaged edits are saved too.
-			const savedPanelId = await save(buildSaveSpec(draft.spec));
-			// Reveal the saved panel once the dashboard re-renders.
-			setScrollTargetId(savedPanelId);
-			toast.success('Panel saved', {
-				position: 'top-center',
-			});
-			onSaved();
-		} catch (err) {
-			showErrorModal(err);
-		}
-	}, [
-		isEditable,
-		save,
-		buildSaveSpec,
-		draft.spec,
-		setScrollTargetId,
-		onSaved,
-		showErrorModal,
-	]);
-
-	// Leaving an existing panel's editor (without saving) still returns to it, so
-	// the dashboard lands on that panel rather than scrolled to the top. A new,
-	// unsaved panel has no persisted target, so there's nothing to reveal.
-	const onCloseEditor = useCallback((): void => {
-		if (!isNew) {
-			setScrollTargetId(panelId);
-		}
-		onClose();
-	}, [isNew, panelId, setScrollTargetId, onClose]);
-
-	const switchToViewMode = useCallback((): void => {
-		logEvent(DashboardEvents.SWITCH_TO_VIEW_MODE, {
-			panelId: panelId,
-		});
-		onSwitchToView();
-	}, [onSwitchToView]);
+	}
 
 	return (
-		<div className={styles.page} data-testid="panel-editor-v2">
-			<Header
-				isDirty={isDirty}
-				isSaving={isSaving}
-				showSwitchToView={!isNew}
-				readOnly={!isEditable}
-				readOnlyChecks={editChecks}
-				readOnlyTooltip={editDisabledTooltip}
-				onSave={onSave}
-				onSwitchToView={switchToViewMode}
-				onClose={onCloseEditor}
-			/>
-			<ResizablePanelGroup
-				id="panel-editor-v2"
-				orientation="horizontal"
-				defaultLayout={defaultLayout}
-				onLayoutChanged={onLayoutChanged}
-			>
-				<ResizablePanel minSize="75%" maxSize="80%" defaultSize="80%">
-					<div className={styles.left}>
-						<ResizablePanelGroup
-							id="panel-editor-v2-main"
-							orientation="vertical"
-							defaultLayout={mainDefaultLayout}
-							onLayoutChanged={onMainLayoutChanged}
-						>
-							<ResizablePanel minSize="55%" maxSize="65%" defaultSize="60%">
-								{panelDefinition && (
-									<PreviewPane
-										panelId={panelId}
-										panel={draft}
-										panelDefinition={panelDefinition}
-										data={data}
-										isFetching={isFetching}
-										isPreviousData={isPreviousData}
-										error={error}
-										refetch={refetch}
-										onDragSelect={onDragSelect}
-										pagination={pagination}
-									/>
-								)}
-							</ResizablePanel>
-							<ResizableHandle withHandle className={styles.handle} />
-							<ResizablePanel minSize="35%" maxSize="45%" defaultSize="40%">
-								<ConfigProvider getPopupContainer={getBodyPopupContainer}>
-									<PanelEditorQueryBuilder
-										panelKind={panelKind}
-										signal={listSignal}
-										isLoadingQueries={isFetching}
-										onStageRunQuery={runQuery}
-										onCancelQuery={cancelQuery}
-										footer={
-											isListPanel ? (
-												<ListColumnsEditor
-													spec={spec}
-													onChangeSpec={setSpec}
-													signal={listSignal}
-												/>
-											) : undefined
-										}
-									/>
-								</ConfigProvider>
-							</ResizablePanel>
-						</ResizablePanelGroup>
-					</div>
-				</ResizablePanel>
-				<ResizableHandle withHandle className={styles.handle} />
-				<ResizablePanel
-					minSize="20%"
-					maxSize="25%"
-					defaultSize="20%"
-					className={styles.right}
-				>
-					<ConfigPane
-						panel={draft}
-						panelId={panelId}
-						spec={spec}
-						onChangeSpec={setSpec}
-						onChangePanelKind={onChangePanelKind}
-						queryType={currentQuery.queryType}
-						legendSeries={legendSeries}
-						tableColumns={tableColumns}
-						stepInterval={stepInterval}
-						metricUnit={metricUnit}
-					/>
-				</ResizablePanel>
-			</ResizablePanelGroup>
-		</div>
+		<QueryEditorBody
+			{...props}
+			draftApi={draftApi}
+			panelDefinition={panelDefinition}
+			onChangePanelKind={onChangePanelKind}
+		/>
 	);
 }
 

frontend/src/pages/DashboardPage/DashboardContainer/PanelEditor/newPanelRoute.ts

@@ -4,8 +4,8 @@ import type { PANEL_TYPES } from 'constants/queryBuilder';
 import ROUTES from 'constants/routes';
 import type { Query } from 'types/api/queryBuilder/queryBuilderData';
 
+import { PANELS } from '../Panels/registry';
 import {
-	PANEL_KIND_TO_PANEL_TYPE,
 	PANEL_TYPE_TO_PANEL_KIND,
 	type PanelKind,
 } from '../Panels/types/panelKind';
@@ -40,7 +40,9 @@ export function parseNewPanelKind(
 		return null;
 	}
 	const kind = new URLSearchParams(search).get(PANEL_KIND_PARAM);
-	return kind && kind in PANEL_KIND_TO_PANEL_TYPE ? (kind as PanelKind) : null;
+	// Gated on the registry, not the legacy map — a static kind has no legacy
+	// panel type, and the map would reject its route as a stale link.
+	return kind && kind in PANELS ? (kind as PanelKind) : null;
 }
 
 /**

frontend/src/pages/DashboardPage/DashboardContainer/Panels/__tests__/capabilities.test.ts

@@ -11,6 +11,8 @@ import type { PanelQueryCapabilities } from '../types/panelCapabilities';
 import { NO_PANEL_ACTIONS } from '../types/panelDefinition';
 import {
 	getHiddenQueryBuilderFields,
+	getQueryPanelDefinition,
+	requireQueryPanelDefinition,
 	getSupportedQueryTypes,
 	getSupportedSignals,
 	isPanelCombinationValid,
@@ -32,6 +34,8 @@ const EXPECTED_QUERY_TYPES: Record<PanelKind, EQueryType[]> = {
 	'signoz/PieChartPanel': [QUERY_BUILDER, CLICKHOUSE],
 	'signoz/TablePanel': [QUERY_BUILDER, CLICKHOUSE],
 	'signoz/ListPanel': [QUERY_BUILDER],
+	// Static kind: no query surface at all.
+	'signoz/TextPanel': [],
 };
 
 const EXPECTED_SIGNALS: Record<PanelKind, TelemetrytypesSignalDTO[]> = {
@@ -43,11 +47,16 @@ const EXPECTED_SIGNALS: Record<PanelKind, TelemetrytypesSignalDTO[]> = {
 	'signoz/TablePanel': [metrics, logs, traces],
 	// List renders raw rows; metrics produce no row data.
 	'signoz/ListPanel': [logs, traces],
+	'signoz/TextPanel': [],
 };
 
 // Exhaustive over PanelKind, so a new kind can't ship without stating how its request is
 // shaped — the check that used to be implicit in a legacy PANEL_TYPES switch.
-const EXPECTED_QUERY_CAPABILITIES: Record<PanelKind, PanelQueryCapabilities> = {
+// Partial: a static kind declares no query capabilities — the lookup below
+// resolves undefined on both sides for it.
+const EXPECTED_QUERY_CAPABILITIES: Partial<
+	Record<PanelKind, PanelQueryCapabilities>
+> = {
 	'signoz/TimeSeriesPanel': {
 		requestType: time_series,
 		formatTableResultForUI: false,
@@ -107,7 +116,7 @@ const ALL_KINDS = Object.keys(EXPECTED_QUERY_TYPES) as PanelKind[];
 describe('panel capabilities guard', () => {
 	describe('query capabilities', () => {
 		it.each(ALL_KINDS)('declares how %s shapes its request', (kind) => {
-			expect(getPanelDefinition(kind).queryCapabilities).toStrictEqual(
+			expect(getQueryPanelDefinition(kind)?.queryCapabilities).toStrictEqual(
 				EXPECTED_QUERY_CAPABILITIES[kind],
 			);
 		});
@@ -149,7 +158,8 @@ describe('panel capabilities guard', () => {
 		});
 
 		it('carries an inert query shape, so a stray request can do no harm', () => {
-			const { queryCapabilities } = getPanelDefinition(unknownKind);
+			const queryCapabilities =
+				requireQueryPanelDefinition(unknownKind).queryCapabilities;
 			expect(queryCapabilities.requestType).toBe(time_series);
 			expect(queryCapabilities.serverPaginated).toBe(false);
 			expect(queryCapabilities.formatTableResultForUI).toBe(false);

frontend/src/pages/DashboardPage/DashboardContainer/Panels/capabilities.ts

@@ -2,7 +2,11 @@ import type { TelemetrytypesSignalDTO } from 'api/generated/services/sigNoz.sche
 import { EQueryType } from 'types/common/dashboard';
 
 import { getPanelDefinition } from './registry';
-import type { FilterConfigsPartial } from './types/panelCapabilities';
+import {
+	mergeQueryBuilderFieldRule,
+	type FilterConfigsPartial,
+} from './types/panelCapabilities';
+import type { RenderableQueryPanelDefinition } from './types/panelDefinition';
 import type { PanelKind } from './types/panelKind';
 
 /**
@@ -13,11 +17,46 @@ import type { PanelKind } from './types/panelKind';
  * these functions then cover it automatically. Pure and side-effect free.
  */
 
+/** Renders from its own plugin spec — no query surface at all. */
+export function isStaticPanelKind(kind: PanelKind): boolean {
+	return getPanelDefinition(kind).mode === 'static';
+}
+
+/**
+ * The kind's definition narrowed to the query arm, or null for a static kind.
+ * The null is what hosts fork on; the accessors below fold it into "supports
+ * nothing" for the guard questions.
+ */
+export function getQueryPanelDefinition(
+	kind: PanelKind,
+): RenderableQueryPanelDefinition | null {
+	const definition = getPanelDefinition(kind);
+	return definition.mode === 'query' ? definition : null;
+}
+
+/**
+ * The query arm, asserted present. For call sites that a host mounts only after
+ * narrowing `mode === 'query'` but that read the definition by kind rather than
+ * receiving it as a prop — the throw makes that invariant executable instead of
+ * silently null-tolerant.
+ */
+export function requireQueryPanelDefinition(
+	kind: PanelKind,
+): RenderableQueryPanelDefinition {
+	const definition = getQueryPanelDefinition(kind);
+	if (!definition) {
+		throw new Error(
+			`query machinery mounted for query-less panel kind ${kind} — the host must fork on definition.mode before this point`,
+		);
+	}
+	return definition;
+}
+
 /** Signals a kind can visualize. */
 export function getSupportedSignals(
 	kind: PanelKind,
 ): TelemetrytypesSignalDTO[] {
-	return getPanelDefinition(kind).supportedSignals;
+	return getQueryPanelDefinition(kind)?.supportedSignals ?? [];
 }
 
 export function isSignalSupported(
@@ -29,7 +68,7 @@ export function isSignalSupported(
 
 /** Query languages a kind supports (Query Builder / ClickHouse / PromQL). */
 export function getSupportedQueryTypes(kind: PanelKind): EQueryType[] {
-	return getPanelDefinition(kind).supportedQueryTypes;
+	return getQueryPanelDefinition(kind)?.supportedQueryTypes ?? [];
 }
 
 export function isQueryTypeSupportedByPanelKind(
@@ -53,6 +92,10 @@ export function isPanelCombinationValid({
 	queryType: EQueryType;
 	signal?: TelemetrytypesSignalDTO;
 }): boolean {
+	// A query-less kind ignores the query entirely, so it pairs with anything.
+	if (isStaticPanelKind(kind)) {
+		return true;
+	}
 	if (!isQueryTypeSupportedByPanelKind(kind, queryType)) {
 		return false;
 	}
@@ -73,7 +116,11 @@ export function resolveQueryType(
 	preferred: EQueryType,
 ): EQueryType {
 	const supported = getSupportedQueryTypes(kind);
-	return supported.includes(preferred) ? preferred : supported[0];
+	if (supported.includes(preferred)) {
+		return preferred;
+	}
+	// A query-less kind has no supported types; the builder is the neutral answer.
+	return supported[0] ?? EQueryType.QUERY_BUILDER;
 }
 
 /**
@@ -85,7 +132,6 @@ export function getHiddenQueryBuilderFields(
 	kind: PanelKind,
 	signal: TelemetrytypesSignalDTO,
 ): FilterConfigsPartial {
-	const rule = getPanelDefinition(kind).queryBuilderFields;
-	const perSignal = signal ? rule[signal] : undefined;
-	return { ...rule.default, ...perSignal };
+	const rule = getQueryPanelDefinition(kind)?.queryBuilderFields ?? {};
+	return mergeQueryBuilderFieldRule(rule, signal);
 }

frontend/src/pages/DashboardPage/DashboardContainer/Panels/components/NoData/NoData.tsx

@@ -8,7 +8,7 @@ import {
 	selectViewPanelExtendWindow,
 	useViewPanelStore,
 } from '../../../store/useViewPanelStore';
-import { PANEL_KIND_TO_PANEL_TYPE } from '../../types/panelKind';
+import { toPanelType } from '../../types/panelKind';
 import PanelLoader from '../PanelLoader/PanelLoader';
 import PanelMessage, { PanelMessageAction } from '../PanelMessage/PanelMessage';
 import { useExtendTimeWindow } from './useExtendTimeWindow';
@@ -57,7 +57,7 @@ function NoData({
 	// `panelType` stays on the event so existing reports keep resolving; `panelKind` is the
 	// V2 identity, and the only one that can tell two kinds sharing a panel type apart.
 	const panelKind = panel.spec.plugin.kind;
-	const panelType = PANEL_KIND_TO_PANEL_TYPE[panelKind];
+	const panelType = toPanelType(panelKind);
 
 	const extendAction: PanelMessageAction | undefined =
 		activeExtend?.canExtend && activeExtend.actionLabel

frontend/src/pages/DashboardPage/DashboardContainer/Panels/hooks/__tests__/useTextBackground.test.tsx

@@ -0,0 +1,147 @@
+import { renderHook } from '@testing-library/react';
+import type { DashboardtypesPanelSpecDTO } from 'api/generated/services/sigNoz.schemas';
+
+import { rgbaFromHex } from '../../kinds/TextPanel/background/contrast';
+import {
+	INK_ALPHAS,
+	SECONDARY_INK_OPACITY,
+	TEXT_BACKGROUND_PAIRS,
+	TRANSPARENT_BACKGROUND,
+} from '../../kinds/TextPanel/background/presets';
+import { useTextBackground } from '../useTextBackground';
+
+const isDarkMode = jest.fn<boolean, []>(() => true);
+
+jest.mock('hooks/useDarkMode', () => ({
+	useIsDarkMode: (): boolean => isDarkMode(),
+}));
+
+function textPanel(background?: string): DashboardtypesPanelSpecDTO {
+	return {
+		display: { name: 'Panel' },
+		plugin: {
+			kind: 'signoz/TextPanel',
+			spec: { text: '', presentation: { background } },
+		},
+		queries: [],
+	} as unknown as DashboardtypesPanelSpecDTO;
+}
+
+describe('useTextBackground', () => {
+	beforeEach(() => {
+		isDarkMode.mockReturnValue(true);
+	});
+
+	it('sets no custom properties for the default surface', () => {
+		const { result } = renderHook(() => useTextBackground(textPanel()));
+
+		expect(result.current).toStrictEqual({ kind: 'default', style: {} });
+	});
+
+	// The card, its border and the header's divider all read these.
+	it('paints a zero-alpha background transparent rather than dropping the card', () => {
+		const { result } = renderHook(() =>
+			useTextBackground(textPanel(TRANSPARENT_BACKGROUND)),
+		);
+
+		expect(result.current).toStrictEqual({
+			kind: 'none',
+			style: {
+				'--text-panel-surface': 'transparent',
+				'--text-panel-border': 'transparent',
+			},
+		});
+	});
+
+	it('exposes the preset pair for the current theme', () => {
+		const { result } = renderHook(() =>
+			useTextBackground(textPanel(TEXT_BACKGROUND_PAIRS.amber.dark.surface)),
+		);
+
+		const { ink } = TEXT_BACKGROUND_PAIRS.amber.dark;
+
+		expect(result.current.style).toStrictEqual({
+			'--text-panel-surface': TEXT_BACKGROUND_PAIRS.amber.dark.surface,
+			'--text-panel-ink': ink,
+			'--text-panel-border': 'rgba(255, 255, 255, 0.09)',
+			'--text-panel-link-decoration': 'underline',
+			'--text-panel-ink-secondary': rgbaFromHex(ink, SECONDARY_INK_OPACITY),
+			'--text-panel-grip': rgbaFromHex(ink, INK_ALPHAS['--text-panel-grip']),
+			'--scrollbar-thumb': rgbaFromHex(ink, INK_ALPHAS['--scrollbar-thumb']),
+			'--scrollbar-thumb-hover': rgbaFromHex(
+				ink,
+				INK_ALPHAS['--scrollbar-thumb-hover'],
+			),
+			'--text-panel-pill-surface': rgbaFromHex(
+				ink,
+				INK_ALPHAS['--text-panel-pill-surface'],
+			),
+		});
+	});
+
+	it('draws the surface chrome from the ink', () => {
+		const { result } = renderHook(() =>
+			useTextBackground(textPanel(TEXT_BACKGROUND_PAIRS.amber.light.surface)),
+		);
+
+		Object.keys(INK_ALPHAS).forEach((name) => {
+			expect(result.current.style).toHaveProperty(name);
+		});
+	});
+
+	// Stored light, read in dark: the ink is the dark pair's.
+	it('carries the secondary ink and the link underline', () => {
+		const { result } = renderHook(() =>
+			useTextBackground(textPanel(TEXT_BACKGROUND_PAIRS.sakura.light.surface)),
+		);
+
+		expect(result.current.style).toMatchObject({
+			'--text-panel-ink-secondary': `rgba(253, 232, 242, ${SECONDARY_INK_OPACITY})`,
+			'--text-panel-link-decoration': 'underline',
+		});
+	});
+
+	it('re-resolves a stored surface when the theme changes', () => {
+		const spec = textPanel(TEXT_BACKGROUND_PAIRS.forest.dark.surface);
+		const { result, rerender } = renderHook(() => useTextBackground(spec));
+
+		expect(result.current.style).toMatchObject({
+			'--text-panel-surface': TEXT_BACKGROUND_PAIRS.forest.dark.surface,
+		});
+
+		isDarkMode.mockReturnValue(false);
+		rerender();
+
+		expect(result.current.style).toMatchObject({
+			'--text-panel-surface': TEXT_BACKGROUND_PAIRS.forest.light.surface,
+			'--text-panel-ink': TEXT_BACKGROUND_PAIRS.forest.light.ink,
+			'--text-panel-border': 'rgba(0, 0, 0, 0.07)',
+		});
+	});
+
+	it('paints a custom colour the same in both themes', () => {
+		const spec = textPanel('#3A2A64');
+		const { result, rerender } = renderHook(() => useTextBackground(spec));
+		const inDark = result.current.style;
+
+		isDarkMode.mockReturnValue(false);
+		rerender();
+
+		expect(result.current.style).toMatchObject({
+			'--text-panel-surface': '#3A2A64',
+			'--text-panel-ink': inDark['--text-panel-ink' as keyof typeof inDark],
+		});
+	});
+
+	it('leaves a kind without a presentation slice alone', () => {
+		const { result } = renderHook(() =>
+			useTextBackground({
+				display: { name: 'Panel' },
+				plugin: { kind: 'signoz/TimeSeriesPanel', spec: {} },
+				queries: [],
+			} as unknown as DashboardtypesPanelSpecDTO),
+		);
+
+		expect(result.current).toStrictEqual({ kind: 'default', style: {} });
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/Panels/hooks/__tests__/useUpdatePanelText.test.tsx

@@ -0,0 +1,73 @@
+import { renderHook } from '@testing-library/react';
+
+import { useUpdatePanelText } from '../useUpdatePanelText';
+
+const patchAsync = jest.fn<Promise<unknown>, [unknown]>(() =>
+	Promise.resolve(undefined),
+);
+const showErrorModal = jest.fn();
+let store = { dashboardId: 'dash-1' };
+let editContext = { isEditable: true };
+
+jest.mock('../../../hooks/useOptimisticPatch', () => ({
+	useOptimisticPatch: (): unknown => ({ patchAsync }),
+}));
+jest.mock('providers/ErrorModalProvider', () => ({
+	useErrorModal: (): unknown => ({ showErrorModal }),
+}));
+jest.mock('../../../store/useDashboardStore', () => ({
+	useDashboardStore: (select: (s: typeof store) => unknown): unknown =>
+		select(store),
+}));
+jest.mock('../../../hooks/useDashboardEditContext', () => ({
+	useDashboardEditContext: (): typeof editContext => editContext,
+}));
+
+describe('useUpdatePanelText', () => {
+	beforeEach(() => {
+		jest.clearAllMocks();
+		store = { dashboardId: 'dash-1' };
+		editContext = { isEditable: true };
+	});
+
+	it('patches the panel body', () => {
+		const { result } = renderHook(() => useUpdatePanelText('p1'));
+
+		result.current?.('- [x] done');
+
+		expect(patchAsync).toHaveBeenCalledWith([
+			{
+				op: 'add',
+				path: '/spec/panels/p1/spec/plugin/spec/text',
+				value: '- [x] done',
+			},
+		]);
+	});
+
+	it('gives no callback when the viewer cannot edit', () => {
+		editContext = { isEditable: false };
+
+		const { result } = renderHook(() => useUpdatePanelText('p1'));
+
+		expect(result.current).toBeUndefined();
+	});
+
+	it('gives no callback outside a dashboard', () => {
+		store = { dashboardId: '' };
+
+		const { result } = renderHook(() => useUpdatePanelText('p1'));
+
+		expect(result.current).toBeUndefined();
+	});
+
+	it('surfaces a failed save', async () => {
+		const failure = new Error('locked');
+		patchAsync.mockRejectedValueOnce(failure);
+		const { result } = renderHook(() => useUpdatePanelText('p1'));
+
+		result.current?.('- [x] done');
+		await Promise.resolve();
+
+		expect(showErrorModal).toHaveBeenCalledWith(failure);
+	});
+});

frontend/src/pages/DashboardPage/DashboardContainer/Panels/hooks/useOverflowBelow.ts

@@ -0,0 +1,67 @@
+import {
+	type RefObject,
+	useCallback,
+	useEffect,
+	useRef,
+	useState,
+} from 'react';
+
+// Within this distance of the end counts as "at the bottom", so the pill isn't
+// kept alive by sub-pixel rounding or a trailing margin.
+const BOTTOM_EPSILON_PX = 16;
+
+interface UseOverflowBelowResult<T extends HTMLElement> {
+	scrollRef: RefObject<T>;
+	/** Content extends below the fold and the user isn't at the bottom yet. */
+	hasMoreBelow: boolean;
+	scrollToBottom: () => void;
+}
+
+/**
+ * Tracks whether a scroll container has unseen content below the fold. Re-measures
+ * on scroll, on container resize, and on every commit — the cheap way to follow
+ * content growth (a live preview re-rendering as the body is typed) without
+ * observing the subtree.
+ */
+export function useOverflowBelow<
+	T extends HTMLElement,
+>(): UseOverflowBelowResult<T> {
+	const scrollRef = useRef<T>(null);
+	const [hasMoreBelow, setHasMoreBelow] = useState(false);
+
+	const measure = useCallback((): void => {
+		const el = scrollRef.current;
+		if (!el) {
+			return;
+		}
+		const remaining = el.scrollHeight - el.scrollTop - el.clientHeight;
+		setHasMoreBelow(remaining > BOTTOM_EPSILON_PX);
+	}, []);
+
+	// No deps on purpose: runs after every commit. setState bails on unchanged
+	// values, so this settles instead of looping.
+	useEffect(() => {
+		measure();
+	});
+
+	useEffect(() => {
+		const el = scrollRef.current;
+		if (!el) {
+			return undefined;
+		}
+		el.addEventListener('scroll', measure, { passive: true });
+		const observer = new ResizeObserver(measure);
+		observer.observe(el);
+		return (): void => {
+			el.removeEventListener('scroll', measure);
+			observer.disconnect();
+		};
+	}, [measure]);
+
+	const scrollToBottom = useCallback((): void => {
+		const el = scrollRef.current;
+		el?.scrollTo({ top: el.scrollHeight, behavior: 'smooth' });
+	}, []);
+
+	return { scrollRef, hasMoreBelow, scrollToBottom };
+}

frontend/src/pages/DashboardPage/DashboardContainer/Panels/hooks/usePrismLanguage.ts

@@ -0,0 +1,42 @@
+import { useEffect, useState } from 'react';
+
+import { isLanguageRegistered, loadLanguage } from '../utils/syntaxLanguages';
+
+/**
+ * Registers `language` with Prism on demand, reporting when it is ready to
+ * highlight with. Already-loaded languages report ready on the first render, so a
+ * second fence of the same language never flashes unhighlighted.
+ */
+export function usePrismLanguage(language: string | null): boolean {
+	const [isReady, setIsReady] = useState(
+		() => !!language && isLanguageRegistered(language),
+	);
+
+	useEffect(() => {
+		if (!language) {
+			setIsReady(false);
+			return undefined;
+		}
+		if (isLanguageRegistered(language)) {
+			setIsReady(true);
+			return undefined;
+		}
+
+		setIsReady(false);
+		let isStale = false;
+		// `loadLanguage` resolves false rather than rejecting, so there is no failure
+		// path here beyond leaving the block unhighlighted.
+		void loadLanguage(language).then((loaded): boolean => {
+			if (!isStale && loaded) {
+				setIsReady(true);
+			}
+			return loaded;
+		});
+
+		return (): void => {
+			isStale = true;
+		};
+	}, [language]);
+
+	return isReady;
+}

frontend/src/pages/DashboardPage/DashboardContainer/Panels/hooks/useTextBackground.ts

@@ -0,0 +1,83 @@
+import { useMemo } from 'react';
+import type { CSSProperties } from 'react';
+import type { DashboardtypesPanelSpecDTO } from 'api/generated/services/sigNoz.schemas';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+
+import { rgbaFromHex } from '../kinds/TextPanel/background/contrast';
+import {
+	INK_ALPHAS,
+	PRESET_BORDER,
+} from '../kinds/TextPanel/background/presets';
+import { resolveTextBackground } from '../kinds/TextPanel/background/resolveTextBackground';
+import {
+	PanelTheme,
+	TextBackgroundKind,
+} from '../kinds/TextPanel/background/types';
+
+export interface TextBackground {
+	kind: TextBackgroundKind;
+	/**
+	 * Custom properties for the card root. Empty for `default`, so the stylesheet's
+	 * own fallbacks decide — nothing here hardcodes a surface.
+	 */
+	style: CSSProperties;
+}
+
+const NO_STYLE: CSSProperties = {};
+
+// D7: `None` drops the card so the body sits on the dashboard canvas. It rides the
+// same properties as a colour, which takes the header's divider with it.
+const CARDLESS_STYLE = {
+	'--text-panel-surface': 'transparent',
+	'--text-panel-border': 'transparent',
+} as CSSProperties;
+
+function inkShares(ink: string): Record<string, string> {
+	return Object.fromEntries(
+		Object.entries(INK_ALPHAS).map(([name, alpha]) => [
+			name,
+			rgbaFromHex(ink, alpha) ?? ink,
+		]),
+	);
+}
+
+/**
+ * The card is an ancestor of the renderer, so the host owns these properties and
+ * everything below inherits them.
+ *
+ * Reading one plugin-spec field off the kind union is the accepted smell (TDD
+ * D7): a dynamic kind can't narrow it, hence one localized cast per host.
+ */
+export function useTextBackground(
+	spec: DashboardtypesPanelSpecDTO,
+): TextBackground {
+	const isDarkMode = useIsDarkMode();
+	const background = (
+		spec.plugin.spec as {
+			presentation?: { background?: string | null };
+		}
+	).presentation?.background;
+
+	return useMemo(() => {
+		const theme = isDarkMode ? PanelTheme.Dark : PanelTheme.Light;
+		const resolved = resolveTextBackground(background, theme);
+
+		if (resolved.kind === TextBackgroundKind.None) {
+			return { kind: resolved.kind, style: CARDLESS_STYLE };
+		}
+
+		return {
+			kind: resolved.kind,
+			style:
+				resolved.surface && resolved.ink
+					? ({
+							'--text-panel-surface': resolved.surface,
+							'--text-panel-ink': resolved.ink,
+							'--text-panel-border': PRESET_BORDER[theme],
+							'--text-panel-link-decoration': 'underline',
+							...inkShares(resolved.ink),
+						} as CSSProperties)
+					: NO_STYLE,
+		};
+	}, [background, isDarkMode]);
+}

frontend/src/pages/DashboardPage/DashboardContainer/Panels/hooks/useUpdatePanelText.ts

@@ -0,0 +1,33 @@
+import { useCallback } from 'react';
+import { useErrorModal } from 'providers/ErrorModalProvider';
+import type APIError from 'types/api/error';
+
+import { useDashboardEditContext } from '../../hooks/useDashboardEditContext';
+import { useOptimisticPatch } from '../../hooks/useOptimisticPatch';
+import { setPanelTextOp } from '../../patchOps';
+import { useDashboardStore } from '../../store/useDashboardStore';
+
+/**
+ * Saves a panel's authored body, or `undefined` when the viewer cannot edit it —
+ * the absent callback is the read-only gate, so nothing downstream re-checks.
+ * The patch is optimistic: the edit shows at once and rolls back if it fails.
+ */
+export function useUpdatePanelText(
+	panelId: string,
+): ((text: string) => void) | undefined {
+	const dashboardId = useDashboardStore((s) => s.dashboardId);
+	const { isEditable } = useDashboardEditContext();
+	const { patchAsync } = useOptimisticPatch();
+	const { showErrorModal } = useErrorModal();
+
+	const save = useCallback(
+		(text: string): void => {
+			patchAsync([setPanelTextOp(panelId, text)]).catch((error) => {
+				showErrorModal(error as APIError);
+			});
+		},
+		[panelId, patchAsync, showErrorModal],
+	);
+
+	return dashboardId && isEditable ? save : undefined;
+}

frontend/src/pages/DashboardPage/DashboardContainer/Panels/kinds/BarChartPanel/definition.ts

@@ -1,6 +1,7 @@
 import { BarChart } from '@signozhq/icons';
 
 import type { PanelDefinition } from '../../types/panelDefinition';
+import QueryBuilderEditorPane from 'pages/DashboardPage/DashboardContainer/PanelEditor/PanelEditorQueryBuilder/QueryBuilderEditorPane';
 import Renderer from './Renderer';
 import { sections } from './sections';
 import {
@@ -12,8 +13,10 @@ import { EQueryType } from 'types/common/dashboard';
 export const definition: PanelDefinition<'signoz/BarChartPanel'> = {
 	kind: 'signoz/BarChartPanel',
 	displayName: 'Bar Chart',
+	mode: 'query',
 	icon: BarChart,
 	Renderer,
+	EditorPane: QueryBuilderEditorPane,
 	sections,
 	supportedSignals: [
 		TelemetrytypesSignalDTO.metrics,

frontend/src/pages/DashboardPage/DashboardContainer/Panels/kinds/HistogramPanel/definition.ts

@@ -1,6 +1,7 @@
 import { BarChart } from '@signozhq/icons';
 
 import type { PanelDefinition } from '../../types/panelDefinition';
+import QueryBuilderEditorPane from 'pages/DashboardPage/DashboardContainer/PanelEditor/PanelEditorQueryBuilder/QueryBuilderEditorPane';
 import Renderer from './Renderer';
 import { sections } from './sections';
 import {
@@ -12,8 +13,10 @@ import { EQueryType } from 'types/common/dashboard';
 export const definition: PanelDefinition<'signoz/HistogramPanel'> = {
 	kind: 'signoz/HistogramPanel',
 	displayName: 'Histogram',
+	mode: 'query',
 	icon: BarChart,
 	Renderer,
+	EditorPane: QueryBuilderEditorPane,
 	sections,
 	supportedSignals: [
 		TelemetrytypesSignalDTO.metrics,

frontend/src/pages/DashboardPage/DashboardContainer/Panels/kinds/ListPanel/ListEditorPane.tsx

@@ -0,0 +1,38 @@
+import type { QueryEditorPaneProps } from '../../types/panelDefinition';
+import ListColumnsEditor from '../../../PanelEditor/ListColumnsEditor/ListColumnsEditor';
+import PanelEditorQueryBuilder from '../../../PanelEditor/PanelEditorQueryBuilder/PanelEditorQueryBuilder';
+
+/**
+ * List's editor pane: the query builder with the columns editor pinned below it.
+ * Declared here so no editor host carries a List special case.
+ */
+function ListEditorPane({
+	panelDefinition,
+	signal,
+	isLoadingQueries,
+	onStageRunQuery,
+	onCancelQuery,
+	stickyHeader,
+	spec,
+	onChangeSpec,
+}: QueryEditorPaneProps): JSX.Element {
+	return (
+		<PanelEditorQueryBuilder
+			panelDefinition={panelDefinition}
+			signal={signal}
+			isLoadingQueries={isLoadingQueries}
+			onStageRunQuery={onStageRunQuery}
+			onCancelQuery={onCancelQuery}
+			stickyHeader={stickyHeader}
+			footer={
+				<ListColumnsEditor
+					spec={spec}
+					onChangeSpec={onChangeSpec}
+					signal={signal}
+				/>
+			}
+		/>
+	);
+}
+
+export default ListEditorPane;