feat(flat-leaf): add serializer

* fix: mark numeric columns as aggregation in scalar query response

* fix: make py-fmt

* fix: comments

docs/api/openapi.yml

@@ -2436,13 +2436,6 @@ components:
         url:
           type: string
       type: object
-    DashboardPanelDisplay:
-      properties:
-        description:
-          type: string
-        name:
-          type: string
-      type: object
     DashboardTextVariableSpec:
       properties:
         constant:
@@ -2496,10 +2489,17 @@ components:
           $ref: '#/components/schemas/DashboardtypesTimePreference'
       type: object
     DashboardtypesBuilderQuerySpec:
+      discriminator:
+        mapping:
+          logs: '#/components/schemas/Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5LogAggregation'
+          metrics: '#/components/schemas/Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5MetricAggregation'
+          traces: '#/components/schemas/Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5TraceAggregation'
+        propertyName: signal
       oneOf:
       - $ref: '#/components/schemas/Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5LogAggregation'
       - $ref: '#/components/schemas/Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5MetricAggregation'
       - $ref: '#/components/schemas/Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5TraceAggregation'
+      type: object
     DashboardtypesComparisonOperator:
       enum:
       - above
@@ -2563,13 +2563,12 @@ components:
             $ref: '#/components/schemas/DashboardtypesDatasourceSpec'
           type: object
         display:
-          $ref: '#/components/schemas/CommonDisplay'
+          $ref: '#/components/schemas/DashboardtypesDisplay'
         duration:
           type: string
         layouts:
           items:
             $ref: '#/components/schemas/DashboardtypesLayout'
-          nullable: true
           type: array
         links:
           items:
@@ -2578,7 +2577,6 @@ components:
         panels:
           additionalProperties:
             $ref: '#/components/schemas/DashboardtypesPanel'
-          nullable: true
           type: object
         refreshInterval:
           type: string
@@ -2586,10 +2584,20 @@ components:
           items:
             $ref: '#/components/schemas/DashboardtypesVariable'
           type: array
+      required:
+      - display
+      - variables
+      - panels
+      - layouts
       type: object
     DashboardtypesDatasourcePlugin:
+      discriminator:
+        mapping:
+          signoz/Datasource: '#/components/schemas/DashboardtypesDatasourcePluginVariantStruct'
+        propertyName: kind
       oneOf:
       - $ref: '#/components/schemas/DashboardtypesDatasourcePluginVariantStruct'
+      type: object
     DashboardtypesDatasourcePluginKind:
       enum:
       - signoz/Datasource
@@ -2616,6 +2624,15 @@ components:
         plugin:
           $ref: '#/components/schemas/DashboardtypesDatasourcePlugin'
       type: object
+    DashboardtypesDisplay:
+      properties:
+        description:
+          type: string
+        name:
+          type: string
+      required:
+      - name
+      type: object
     DashboardtypesDynamicVariableSpec:
       properties:
         name:
@@ -2656,7 +2673,7 @@ components:
           $ref: '#/components/schemas/DashboardtypesDashboardSpec'
         tags:
           items:
-            $ref: '#/components/schemas/TagtypesPostableTag'
+            $ref: '#/components/schemas/TagtypesGettableTag'
           nullable: true
           type: array
         updatedAt:
@@ -2733,8 +2750,13 @@ components:
       - path
       type: object
     DashboardtypesLayout:
+      discriminator:
+        mapping:
+          Grid: '#/components/schemas/DashboardtypesLayoutEnvelopeGithubComPersesSpecGoDashboardGridLayoutSpec'
+        propertyName: kind
       oneOf:
       - $ref: '#/components/schemas/DashboardtypesLayoutEnvelopeGithubComPersesSpecGoDashboardGridLayoutSpec'
+      type: object
     DashboardtypesLayoutEnvelopeGithubComPersesSpecGoDashboardGridLayoutSpec:
       properties:
         kind:
@@ -2774,6 +2796,11 @@ components:
       - solid
       - dashed
       type: string
+    DashboardtypesListOrder:
+      enum:
+      - asc
+      - desc
+      type: string
     DashboardtypesListPanelSpec:
       properties:
         selectFields:
@@ -2781,6 +2808,12 @@ components:
             $ref: '#/components/schemas/TelemetrytypesTelemetryFieldKey'
           type: array
       type: object
+    DashboardtypesListSort:
+      enum:
+      - updated_at
+      - created_at
+      - name
+      type: string
     DashboardtypesListVariableSpec:
       properties:
         allowAllValue:
@@ -2794,7 +2827,7 @@ components:
         defaultValue:
           $ref: '#/components/schemas/VariableDefaultValue'
         display:
-          $ref: '#/components/schemas/VariableDisplay'
+          $ref: '#/components/schemas/DashboardtypesDisplay'
         name:
           type: string
         plugin:
@@ -2802,6 +2835,136 @@ components:
         sort:
           nullable: true
           type: string
+      required:
+      - display
+      type: object
+    DashboardtypesListableDashboardForUserV2:
+      properties:
+        dashboards:
+          items:
+            $ref: '#/components/schemas/DashboardtypesListedDashboardForUserV2'
+          type: array
+        tags:
+          items:
+            $ref: '#/components/schemas/TagtypesGettableTag'
+          type: array
+        total:
+          format: int64
+          type: integer
+      required:
+      - dashboards
+      - total
+      - tags
+      type: object
+    DashboardtypesListableDashboardV2:
+      properties:
+        dashboards:
+          items:
+            $ref: '#/components/schemas/DashboardtypesListedDashboardV2'
+          type: array
+        tags:
+          items:
+            $ref: '#/components/schemas/TagtypesGettableTag'
+          type: array
+        total:
+          format: int64
+          type: integer
+      required:
+      - dashboards
+      - total
+      - tags
+      type: object
+    DashboardtypesListedDashboardForUserV2:
+      properties:
+        createdAt:
+          format: date-time
+          type: string
+        createdBy:
+          type: string
+        id:
+          type: string
+        image:
+          type: string
+        locked:
+          type: boolean
+        name:
+          type: string
+        orgId:
+          type: string
+        pinned:
+          type: boolean
+        schemaVersion:
+          type: string
+        source:
+          $ref: '#/components/schemas/DashboardtypesSource'
+        spec:
+          $ref: '#/components/schemas/DashboardtypesListedDashboardV2Spec'
+        tags:
+          items:
+            $ref: '#/components/schemas/TagtypesGettableTag'
+          type: array
+        updatedAt:
+          format: date-time
+          type: string
+        updatedBy:
+          type: string
+      required:
+      - id
+      - orgId
+      - locked
+      - source
+      - schemaVersion
+      - name
+      - tags
+      - spec
+      - pinned
+      type: object
+    DashboardtypesListedDashboardV2:
+      properties:
+        createdAt:
+          format: date-time
+          type: string
+        createdBy:
+          type: string
+        id:
+          type: string
+        image:
+          type: string
+        locked:
+          type: boolean
+        name:
+          type: string
+        orgId:
+          type: string
+        schemaVersion:
+          type: string
+        source:
+          $ref: '#/components/schemas/DashboardtypesSource'
+        spec:
+          $ref: '#/components/schemas/DashboardtypesListedDashboardV2Spec'
+        tags:
+          items:
+            $ref: '#/components/schemas/TagtypesGettableTag'
+          type: array
+        updatedAt:
+          format: date-time
+          type: string
+        updatedBy:
+          type: string
+      required:
+      - id
+      - orgId
+      - locked
+      - source
+      - schemaVersion
+      - name
+      - tags
+      - spec
+      type: object
+    DashboardtypesListedDashboardV2Spec:
+      properties:
+        display:
+          $ref: '#/components/schemas/DashboardtypesDisplay'
       type: object
     DashboardtypesNumberPanelSpec:
       properties:
@@ -2821,6 +2984,9 @@ components:
           $ref: '#/components/schemas/DashboardtypesPanelKind'
         spec:
           $ref: '#/components/schemas/DashboardtypesPanelSpec'
+      required:
+      - kind
+      - spec
       type: object
     DashboardtypesPanelFormatting:
       properties:
@@ -2834,6 +3000,16 @@ components:
       - Panel
       type: string
     DashboardtypesPanelPlugin:
+      discriminator:
+        mapping:
+          signoz/BarChartPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesBarChartPanelSpec'
+          signoz/HistogramPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesHistogramPanelSpec'
+          signoz/ListPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesListPanelSpec'
+          signoz/NumberPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesNumberPanelSpec'
+          signoz/PieChartPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesPieChartPanelSpec'
+          signoz/TablePanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTablePanelSpec'
+          signoz/TimeSeriesPanel: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTimeSeriesPanelSpec'
+        propertyName: kind
       oneOf:
       - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTimeSeriesPanelSpec'
       - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesBarChartPanelSpec'
@@ -2842,6 +3018,7 @@ components:
       - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTablePanelSpec'
       - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesHistogramPanelSpec'
       - $ref: '#/components/schemas/DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesListPanelSpec'
+      type: object
     DashboardtypesPanelPluginKind:
       enum:
       - signoz/TimeSeriesPanel
@@ -2939,7 +3116,7 @@ components:
     DashboardtypesPanelSpec:
       properties:
         display:
-          $ref: '#/components/schemas/DashboardPanelDisplay'
+          $ref: '#/components/schemas/DashboardtypesDisplay'
         links:
           items:
             $ref: '#/components/schemas/DashboardLink'
@@ -2949,7 +3126,12 @@ components:
         queries:
           items:
             $ref: '#/components/schemas/DashboardtypesQuery'
+          nullable: true
           type: array
+      required:
+      - display
+      - plugin
+      - queries
       type: object
     DashboardtypesPatchOp:
       enum:
@@ -3018,8 +3200,20 @@ components:
           $ref: '#/components/schemas/Querybuildertypesv5RequestType'
         spec:
           $ref: '#/components/schemas/DashboardtypesQuerySpec'
+      required:
+      - kind
+      - spec
       type: object
     DashboardtypesQueryPlugin:
+      discriminator:
+        mapping:
+          signoz/BuilderQuery: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesBuilderQuerySpec'
+          signoz/ClickHouseSQL: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5ClickHouseQuery'
+          signoz/CompositeQuery: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5CompositeQuery'
+          signoz/Formula: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5QueryBuilderFormula'
+          signoz/PromQLQuery: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5PromQuery'
+          signoz/TraceOperator: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5QueryBuilderTraceOperator'
+        propertyName: kind
       oneOf:
       - $ref: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesBuilderQuerySpec'
       - $ref: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5CompositeQuery'
@@ -3027,6 +3221,7 @@ components:
       - $ref: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5PromQuery'
       - $ref: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5ClickHouseQuery'
       - $ref: '#/components/schemas/DashboardtypesQueryPluginVariantGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5QueryBuilderTraceOperator'
+      type: object
     DashboardtypesQueryPluginKind:
       enum:
       - signoz/BuilderQuery
@@ -3114,6 +3309,8 @@ components:
           type: string
         plugin:
           $ref: '#/components/schemas/DashboardtypesQueryPlugin'
+      required:
+      - plugin
       type: object
     DashboardtypesQueryVariableSpec:
       properties:
@@ -3281,9 +3478,15 @@ components:
           type: boolean
       type: object
     DashboardtypesVariable:
+      discriminator:
+        mapping:
+          ListVariable: '#/components/schemas/DashboardtypesVariableEnvelopeGithubComSigNozSignozPkgTypesDashboardtypesListVariableSpec'
+          TextVariable: '#/components/schemas/DashboardtypesVariableEnvelopeGithubComPersesSpecGoDashboardTextVariableSpec'
+        propertyName: kind
       oneOf:
       - $ref: '#/components/schemas/DashboardtypesVariableEnvelopeGithubComSigNozSignozPkgTypesDashboardtypesListVariableSpec'
       - $ref: '#/components/schemas/DashboardtypesVariableEnvelopeGithubComPersesSpecGoDashboardTextVariableSpec'
+      type: object
     DashboardtypesVariableEnvelopeGithubComPersesSpecGoDashboardTextVariableSpec:
       properties:
         kind:
@@ -3309,10 +3512,17 @@ components:
       - spec
       type: object
     DashboardtypesVariablePlugin:
+      discriminator:
+        mapping:
+          signoz/CustomVariable: '#/components/schemas/DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesCustomVariableSpec'
+          signoz/DynamicVariable: '#/components/schemas/DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesDynamicVariableSpec'
+          signoz/QueryVariable: '#/components/schemas/DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesQueryVariableSpec'
+        propertyName: kind
       oneOf:
       - $ref: '#/components/schemas/DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesDynamicVariableSpec'
       - $ref: '#/components/schemas/DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesQueryVariableSpec'
       - $ref: '#/components/schemas/DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesCustomVariableSpec'
+      type: object
     DashboardtypesVariablePluginKind:
       enum:
       - signoz/DynamicVariable
@@ -5515,11 +5725,15 @@ components:
             $ref: '#/components/schemas/TelemetrytypesTelemetryFieldKey'
           type: array
         signal:
-          $ref: '#/components/schemas/TelemetrytypesSignal'
+          enum:
+          - logs
+          type: string
         source:
           $ref: '#/components/schemas/TelemetrytypesSource'
         stepInterval:
           $ref: '#/components/schemas/Querybuildertypesv5Step'
+      required:
+      - signal
       type: object
     Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5MetricAggregation:
       properties:
@@ -5566,11 +5780,15 @@ components:
             $ref: '#/components/schemas/TelemetrytypesTelemetryFieldKey'
           type: array
         signal:
-          $ref: '#/components/schemas/TelemetrytypesSignal'
+          enum:
+          - metrics
+          type: string
         source:
           $ref: '#/components/schemas/TelemetrytypesSource'
         stepInterval:
           $ref: '#/components/schemas/Querybuildertypesv5Step'
+      required:
+      - signal
       type: object
     Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5TraceAggregation:
       properties:
@@ -5617,11 +5835,15 @@ components:
             $ref: '#/components/schemas/TelemetrytypesTelemetryFieldKey'
           type: array
         signal:
-          $ref: '#/components/schemas/TelemetrytypesSignal'
+          enum:
+          - traces
+          type: string
         source:
           $ref: '#/components/schemas/TelemetrytypesSource'
         stepInterval:
           $ref: '#/components/schemas/Querybuildertypesv5Step'
+      required:
+      - signal
       type: object
     Querybuildertypesv5QueryBuilderTraceOperator:
       properties:
@@ -7062,6 +7284,16 @@ components:
       required:
       - references
       type: object
+    TagtypesGettableTag:
+      properties:
+        key:
+          type: string
+        value:
+          type: string
+      required:
+      - key
+      - value
+      type: object
     TagtypesPostableTag:
       properties:
         key:
@@ -13097,6 +13329,82 @@ paths:
       tags:
       - preferences
   /api/v2/dashboards:
+    get:
+      deprecated: false
+      description: Returns a page of v2-shape dashboards for the org. This is the
+        pure, user-independent list — it carries no pin state. Use ListDashboardsForUserV2
+        for the personalized, pin-aware list. Supports a filter DSL (`query`), sort
+        (`updated_at`/`created_at`/`name`), order (`asc`/`desc`), and offset-based
+        pagination (`limit`/`offset`).
+      operationId: ListDashboardsV2
+      parameters:
+      - in: query
+        name: query
+        schema:
+          type: string
+      - in: query
+        name: sort
+        schema:
+          $ref: '#/components/schemas/DashboardtypesListSort'
+      - in: query
+        name: order
+        schema:
+          $ref: '#/components/schemas/DashboardtypesListOrder'
+      - 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/DashboardtypesListableDashboardV2'
+                  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:
+        - VIEWER
+      - tokenizer:
+        - VIEWER
+      summary: List dashboards (v2)
+      tags:
+      - dashboard
     post:
       deprecated: false
       description: This endpoint creates a dashboard in the v2 format that follows
@@ -13155,6 +13463,62 @@ paths:
       tags:
       - dashboard
   /api/v2/dashboards/{id}:
+    delete:
+      deprecated: false
+      description: This endpoint deletes a v2-shape dashboard along with its tag relations.
+        Locked dashboards are rejected.
+      operationId: DeleteDashboardV2
+      parameters:
+      - in: path
+        name: id
+        required: true
+        schema:
+          type: string
+      responses:
+        "204":
+          content:
+            application/json:
+              schema:
+                type: string
+          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:
+        - EDITOR
+      - tokenizer:
+        - EDITOR
+      summary: Delete dashboard (v2)
+      tags:
+      - dashboard
     get:
       deprecated: false
       description: This endpoint returns a v2-shape dashboard.
@@ -20377,6 +20741,196 @@ paths:
       summary: Update my user v2
       tags:
       - users
+  /api/v2/users/me/dashboards:
+    get:
+      deprecated: false
+      description: 'Same as ListDashboardsV2 but personalized for the calling user:
+        each dashboard carries the caller''s `pinned` state, and pinned dashboards
+        float to the top of the requested ordering. Supports the same filter DSL,
+        sort, order, and pagination.'
+      operationId: ListDashboardsForUserV2
+      parameters:
+      - in: query
+        name: query
+        schema:
+          type: string
+      - in: query
+        name: sort
+        schema:
+          $ref: '#/components/schemas/DashboardtypesListSort'
+      - in: query
+        name: order
+        schema:
+          $ref: '#/components/schemas/DashboardtypesListOrder'
+      - 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/DashboardtypesListableDashboardForUserV2'
+                  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:
+        - VIEWER
+      - tokenizer:
+        - VIEWER
+      summary: List dashboards for the current user (v2)
+      tags:
+      - dashboard
+  /api/v2/users/me/dashboards/{id}/pins:
+    delete:
+      deprecated: false
+      description: Removes the pin for the calling user. Idempotent — unpinning a
+        dashboard that wasn't pinned still returns 204.
+      operationId: UnpinDashboardV2
+      parameters:
+      - in: path
+        name: id
+        required: true
+        schema:
+          type: string
+      responses:
+        "204":
+          content:
+            application/json:
+              schema:
+                type: string
+          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:
+        - VIEWER
+      - tokenizer:
+        - VIEWER
+      summary: Unpin a dashboard for the current user (v2)
+      tags:
+      - dashboard
+    put:
+      deprecated: false
+      description: Pins the dashboard for the calling user. A user can pin at most
+        10 dashboards; pinning when at the limit returns 409. Re-pinning an already-pinned
+        dashboard is a no-op success.
+      operationId: PinDashboardV2
+      parameters:
+      - in: path
+        name: id
+        required: true
+        schema:
+          type: string
+      responses:
+        "204":
+          content:
+            application/json:
+              schema:
+                type: string
+          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
+        "409":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Conflict
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - VIEWER
+      - tokenizer:
+        - VIEWER
+      summary: Pin a dashboard for the current user (v2)
+      tags:
+      - dashboard
   /api/v2/users/me/factor_password:
     put:
       deprecated: false

docs/contributing/go/handler.md

@@ -333,6 +333,50 @@ func (Step) JSONSchema() (jsonschema.Schema, error) {
 }
 ```
 
+### `oneOf` with a discriminator
+
+For a sum type whose variants are keyed by a property (e.g. `kind`), expose the variants via `JSONSchemaOneOf()` and add a discriminator. Without it, code generators intersect the variants (`A & B & C`) instead of producing a clean discriminated union (`A | B | C`).
+
+The parent keeps its `JSONSchemaOneOf()` (the `oneOf` itself) and *additionally* tags it via `PrepareJSONSchema` with the `x-signoz-discriminator` extension; `signoz.attachDiscriminators` then promotes that marker to a real OpenAPI 3 `discriminator` (and strips the duplicate parent properties) after reflection.
+
+```go
+// On the parent: expose the oneOf variants...
+func (Plugin) JSONSchemaOneOf() []any {
+    return []any{FooVariant{}}
+}
+
+// ...and tag that same oneOf with the discriminator marker.
+func (Plugin) PrepareJSONSchema(s *jsonschema.Schema) error {
+    if s.ExtraProperties == nil {
+        s.ExtraProperties = map[string]any{}
+    }
+    s.ExtraProperties["x-signoz-discriminator"] = map[string]any{
+        "propertyName": "kind",
+        "mapping": map[string]string{
+            "signoz/Foo": "#/components/schemas/FooVariant",
+        },
+    }
+    return nil
+}
+```
+
+Each variant must declare the discriminator property (`kind`) and mark it `required`. 
+
+This produces the following in the generated OpenAPI spec:
+
+```yaml
+Plugin:
+  discriminator:
+    propertyName: kind
+    mapping:
+      signoz/Foo: '#/components/schemas/FooVariant'
+  oneOf:
+  - $ref: '#/components/schemas/FooVariant'
+  type: object
+```
+
+Note the discriminator property lives in the variants, not on the parent — the parent is only the union.
+
 
 ## What should I remember?
 

ee/modules/dashboard/impldashboard/module.go

@@ -229,10 +229,39 @@ func (module *module) PatchV2(ctx context.Context, orgID valuer.UUID, id valuer.
 	return module.pkgDashboardModule.PatchV2(ctx, orgID, id, updatedBy, patch)
 }
 
+func (module *module) DeleteV2(ctx context.Context, orgID valuer.UUID, id valuer.UUID) error {
+	return module.store.RunInTx(ctx, func(ctx context.Context) error {
+		if err := module.store.DeletePublic(ctx, id.String()); err != nil && !errors.Ast(err, errors.TypeNotFound) {
+			return err
+		}
+		return module.pkgDashboardModule.DeleteV2(ctx, orgID, id)
+	})
+}
+
 func (module *module) LockUnlockV2(ctx context.Context, orgID valuer.UUID, id valuer.UUID, updatedBy string, isAdmin bool, lock bool) error {
 	return module.pkgDashboardModule.LockUnlockV2(ctx, orgID, id, updatedBy, isAdmin, lock)
 }
 
+func (module *module) ListV2(ctx context.Context, orgID valuer.UUID, params *dashboardtypes.ListDashboardsV2Params) (*dashboardtypes.ListableDashboardV2, error) {
+	return module.pkgDashboardModule.ListV2(ctx, orgID, params)
+}
+
+func (module *module) ListForUserV2(ctx context.Context, orgID valuer.UUID, userID valuer.UUID, params *dashboardtypes.ListDashboardsV2Params) (*dashboardtypes.ListableDashboardForUserV2, error) {
+	return module.pkgDashboardModule.ListForUserV2(ctx, orgID, userID, params)
+}
+
+func (module *module) PinV2(ctx context.Context, orgID valuer.UUID, userID valuer.UUID, id valuer.UUID) error {
+	return module.pkgDashboardModule.PinV2(ctx, orgID, userID, id)
+}
+
+func (module *module) UnpinV2(ctx context.Context, orgID valuer.UUID, userID valuer.UUID, id valuer.UUID) error {
+	return module.pkgDashboardModule.UnpinV2(ctx, orgID, userID, id)
+}
+
+func (module *module) DeletePreferencesForUser(ctx context.Context, orgID valuer.UUID, userID valuer.UUID) error {
+	return module.pkgDashboardModule.DeletePreferencesForUser(ctx, orgID, userID)
+}
+
 func (module *module) Get(ctx context.Context, orgID valuer.UUID, id valuer.UUID) (*dashboardtypes.Dashboard, error) {
 	return module.pkgDashboardModule.Get(ctx, orgID, id)
 }

ee/query-service/app/server.go

@@ -185,6 +185,7 @@ func (s *Server) createPublicServer(apiHandler *api.APIHandler, web web.Web) (*h
 		s.config.APIServer.Timeout.Default,
 		s.config.APIServer.Timeout.Max,
 	).Wrap)
+	r.Use(middleware.NewResource(s.signoz.Instrumentation.Logger()).Wrap)
 	r.Use(middleware.NewAudit(s.signoz.Instrumentation.Logger(), s.config.APIServer.Logging.ExcludedRoutes, s.signoz.Auditor).Wrap)
 	r.Use(middleware.NewComment().Wrap)
 

ee/sqlstore/postgressqlstore/formatter.go

@@ -16,10 +16,11 @@ func newFormatter(dialect schema.Dialect) sqlstore.SQLFormatter {
 }
 
 func (f *formatter) JSONExtractString(column, path string) []byte {
-	var sql []byte
-	sql = f.bunf.AppendIdent(sql, column)
-	sql = append(sql, f.convertJSONPathToPostgres(path)...)
-	return sql
+	ops := f.convertJSONPathToPostgres(path)
+	if len(ops) == 0 {
+		return f.bunf.AppendIdent(nil, column)
+	}
+	return append(f.TextToJsonColumn(column), ops...)
 }
 
 func (f *formatter) JSONType(column, path string) []byte {

ee/sqlstore/postgressqlstore/formatter_test.go

@@ -18,19 +18,19 @@ func TestJSONExtractString(t *testing.T) {
 			name:     "simple path",
 			column:   "data",
 			path:     "$.field",
-			expected: `"data"->>'field'`,
+			expected: `"data"::jsonb->>'field'`,
 		},
 		{
 			name:     "nested path",
 			column:   "metadata",
 			path:     "$.user.name",
-			expected: `"metadata"->'user'->>'name'`,
+			expected: `"metadata"::jsonb->'user'->>'name'`,
 		},
 		{
 			name:     "deeply nested path",
 			column:   "json_col",
 			path:     "$.level1.level2.level3",
-			expected: `"json_col"->'level1'->'level2'->>'level3'`,
+			expected: `"json_col"::jsonb->'level1'->'level2'->>'level3'`,
 		},
 		{
 			name:     "root path",

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

@@ -26,6 +26,7 @@ import type {
 	DashboardtypesPostablePublicDashboardDTO,
 	DashboardtypesUpdatableDashboardV2DTO,
 	DashboardtypesUpdatablePublicDashboardDTO,
+	DeleteDashboardV2PathParameters,
 	DeletePublicDashboardPathParameters,
 	GetDashboardV2200,
 	GetDashboardV2PathParameters,
@@ -35,11 +36,17 @@ import type {
 	GetPublicDashboardPathParameters,
 	GetPublicDashboardWidgetQueryRange200,
 	GetPublicDashboardWidgetQueryRangePathParameters,
+	ListDashboardsForUserV2200,
+	ListDashboardsForUserV2Params,
+	ListDashboardsV2200,
+	ListDashboardsV2Params,
 	LockDashboardV2PathParameters,
 	PatchDashboardV2200,
 	PatchDashboardV2PathParameters,
+	PinDashboardV2PathParameters,
 	RenderErrorResponseDTO,
 	UnlockDashboardV2PathParameters,
+	UnpinDashboardV2PathParameters,
 	UpdateDashboardV2200,
 	UpdateDashboardV2PathParameters,
 	UpdatePublicDashboardPathParameters,
@@ -641,6 +648,103 @@ export const invalidateGetPublicDashboardWidgetQueryRange = async (
 	return queryClient;
 };
 
+/**
+ * Returns a page of v2-shape dashboards for the org. This is the pure, user-independent list — it carries no pin state. Use ListDashboardsForUserV2 for the personalized, pin-aware list. Supports a filter DSL (`query`), sort (`updated_at`/`created_at`/`name`), order (`asc`/`desc`), and offset-based pagination (`limit`/`offset`).
+ * @summary List dashboards (v2)
+ */
+export const listDashboardsV2 = (
+	params?: ListDashboardsV2Params,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<ListDashboardsV2200>({
+		url: `/api/v2/dashboards`,
+		method: 'GET',
+		params,
+		signal,
+	});
+};
+
+export const getListDashboardsV2QueryKey = (
+	params?: ListDashboardsV2Params,
+) => {
+	return [`/api/v2/dashboards`, ...(params ? [params] : [])] as const;
+};
+
+export const getListDashboardsV2QueryOptions = <
+	TData = Awaited<ReturnType<typeof listDashboardsV2>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	params?: ListDashboardsV2Params,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof listDashboardsV2>>,
+			TError,
+			TData
+		>;
+	},
+) => {
+	const { query: queryOptions } = options ?? {};
+
+	const queryKey = queryOptions?.queryKey ?? getListDashboardsV2QueryKey(params);
+
+	const queryFn: QueryFunction<Awaited<ReturnType<typeof listDashboardsV2>>> = ({
+		signal,
+	}) => listDashboardsV2(params, signal);
+
+	return { queryKey, queryFn, ...queryOptions } as UseQueryOptions<
+		Awaited<ReturnType<typeof listDashboardsV2>>,
+		TError,
+		TData
+	> & { queryKey: QueryKey };
+};
+
+export type ListDashboardsV2QueryResult = NonNullable<
+	Awaited<ReturnType<typeof listDashboardsV2>>
+>;
+export type ListDashboardsV2QueryError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary List dashboards (v2)
+ */
+
+export function useListDashboardsV2<
+	TData = Awaited<ReturnType<typeof listDashboardsV2>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	params?: ListDashboardsV2Params,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof listDashboardsV2>>,
+			TError,
+			TData
+		>;
+	},
+): UseQueryResult<TData, TError> & { queryKey: QueryKey } {
+	const queryOptions = getListDashboardsV2QueryOptions(params, options);
+
+	const query = useQuery(queryOptions) as UseQueryResult<TData, TError> & {
+		queryKey: QueryKey;
+	};
+
+	return { ...query, queryKey: queryOptions.queryKey };
+}
+
+/**
+ * @summary List dashboards (v2)
+ */
+export const invalidateListDashboardsV2 = async (
+	queryClient: QueryClient,
+	params?: ListDashboardsV2Params,
+	options?: InvalidateOptions,
+): Promise<QueryClient> => {
+	await queryClient.invalidateQueries(
+		{ queryKey: getListDashboardsV2QueryKey(params) },
+		options,
+	);
+
+	return queryClient;
+};
+
 /**
  * This endpoint creates a dashboard in the v2 format that follows Perses spec.
  * @summary Create dashboard (v2)
@@ -724,6 +828,85 @@ export const useCreateDashboardV2 = <
 > => {
 	return useMutation(getCreateDashboardV2MutationOptions(options));
 };
+/**
+ * This endpoint deletes a v2-shape dashboard along with its tag relations. Locked dashboards are rejected.
+ * @summary Delete dashboard (v2)
+ */
+export const deleteDashboardV2 = (
+	{ id }: DeleteDashboardV2PathParameters,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<string>({
+		url: `/api/v2/dashboards/${id}`,
+		method: 'DELETE',
+		signal,
+	});
+};
+
+export const getDeleteDashboardV2MutationOptions = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof deleteDashboardV2>>,
+		TError,
+		{ pathParams: DeleteDashboardV2PathParameters },
+		TContext
+	>;
+}): UseMutationOptions<
+	Awaited<ReturnType<typeof deleteDashboardV2>>,
+	TError,
+	{ pathParams: DeleteDashboardV2PathParameters },
+	TContext
+> => {
+	const mutationKey = ['deleteDashboardV2'];
+	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 deleteDashboardV2>>,
+		{ pathParams: DeleteDashboardV2PathParameters }
+	> = (props) => {
+		const { pathParams } = props ?? {};
+
+		return deleteDashboardV2(pathParams);
+	};
+
+	return { mutationFn, ...mutationOptions };
+};
+
+export type DeleteDashboardV2MutationResult = NonNullable<
+	Awaited<ReturnType<typeof deleteDashboardV2>>
+>;
+
+export type DeleteDashboardV2MutationError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Delete dashboard (v2)
+ */
+export const useDeleteDashboardV2 = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof deleteDashboardV2>>,
+		TError,
+		{ pathParams: DeleteDashboardV2PathParameters },
+		TContext
+	>;
+}): UseMutationResult<
+	Awaited<ReturnType<typeof deleteDashboardV2>>,
+	TError,
+	{ pathParams: DeleteDashboardV2PathParameters },
+	TContext
+> => {
+	return useMutation(getDeleteDashboardV2MutationOptions(options));
+};
 /**
  * This endpoint returns a v2-shape dashboard.
  * @summary Get dashboard (v2)
@@ -1181,3 +1364,260 @@ export const useLockDashboardV2 = <
 > => {
 	return useMutation(getLockDashboardV2MutationOptions(options));
 };
+/**
+ * Same as ListDashboardsV2 but personalized for the calling user: each dashboard carries the caller's `pinned` state, and pinned dashboards float to the top of the requested ordering. Supports the same filter DSL, sort, order, and pagination.
+ * @summary List dashboards for the current user (v2)
+ */
+export const listDashboardsForUserV2 = (
+	params?: ListDashboardsForUserV2Params,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<ListDashboardsForUserV2200>({
+		url: `/api/v2/users/me/dashboards`,
+		method: 'GET',
+		params,
+		signal,
+	});
+};
+
+export const getListDashboardsForUserV2QueryKey = (
+	params?: ListDashboardsForUserV2Params,
+) => {
+	return [`/api/v2/users/me/dashboards`, ...(params ? [params] : [])] as const;
+};
+
+export const getListDashboardsForUserV2QueryOptions = <
+	TData = Awaited<ReturnType<typeof listDashboardsForUserV2>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	params?: ListDashboardsForUserV2Params,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof listDashboardsForUserV2>>,
+			TError,
+			TData
+		>;
+	},
+) => {
+	const { query: queryOptions } = options ?? {};
+
+	const queryKey =
+		queryOptions?.queryKey ?? getListDashboardsForUserV2QueryKey(params);
+
+	const queryFn: QueryFunction<
+		Awaited<ReturnType<typeof listDashboardsForUserV2>>
+	> = ({ signal }) => listDashboardsForUserV2(params, signal);
+
+	return { queryKey, queryFn, ...queryOptions } as UseQueryOptions<
+		Awaited<ReturnType<typeof listDashboardsForUserV2>>,
+		TError,
+		TData
+	> & { queryKey: QueryKey };
+};
+
+export type ListDashboardsForUserV2QueryResult = NonNullable<
+	Awaited<ReturnType<typeof listDashboardsForUserV2>>
+>;
+export type ListDashboardsForUserV2QueryError =
+	ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary List dashboards for the current user (v2)
+ */
+
+export function useListDashboardsForUserV2<
+	TData = Awaited<ReturnType<typeof listDashboardsForUserV2>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	params?: ListDashboardsForUserV2Params,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof listDashboardsForUserV2>>,
+			TError,
+			TData
+		>;
+	},
+): UseQueryResult<TData, TError> & { queryKey: QueryKey } {
+	const queryOptions = getListDashboardsForUserV2QueryOptions(params, options);
+
+	const query = useQuery(queryOptions) as UseQueryResult<TData, TError> & {
+		queryKey: QueryKey;
+	};
+
+	return { ...query, queryKey: queryOptions.queryKey };
+}
+
+/**
+ * @summary List dashboards for the current user (v2)
+ */
+export const invalidateListDashboardsForUserV2 = async (
+	queryClient: QueryClient,
+	params?: ListDashboardsForUserV2Params,
+	options?: InvalidateOptions,
+): Promise<QueryClient> => {
+	await queryClient.invalidateQueries(
+		{ queryKey: getListDashboardsForUserV2QueryKey(params) },
+		options,
+	);
+
+	return queryClient;
+};
+
+/**
+ * Removes the pin for the calling user. Idempotent — unpinning a dashboard that wasn't pinned still returns 204.
+ * @summary Unpin a dashboard for the current user (v2)
+ */
+export const unpinDashboardV2 = (
+	{ id }: UnpinDashboardV2PathParameters,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<string>({
+		url: `/api/v2/users/me/dashboards/${id}/pins`,
+		method: 'DELETE',
+		signal,
+	});
+};
+
+export const getUnpinDashboardV2MutationOptions = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof unpinDashboardV2>>,
+		TError,
+		{ pathParams: UnpinDashboardV2PathParameters },
+		TContext
+	>;
+}): UseMutationOptions<
+	Awaited<ReturnType<typeof unpinDashboardV2>>,
+	TError,
+	{ pathParams: UnpinDashboardV2PathParameters },
+	TContext
+> => {
+	const mutationKey = ['unpinDashboardV2'];
+	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 unpinDashboardV2>>,
+		{ pathParams: UnpinDashboardV2PathParameters }
+	> = (props) => {
+		const { pathParams } = props ?? {};
+
+		return unpinDashboardV2(pathParams);
+	};
+
+	return { mutationFn, ...mutationOptions };
+};
+
+export type UnpinDashboardV2MutationResult = NonNullable<
+	Awaited<ReturnType<typeof unpinDashboardV2>>
+>;
+
+export type UnpinDashboardV2MutationError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Unpin a dashboard for the current user (v2)
+ */
+export const useUnpinDashboardV2 = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof unpinDashboardV2>>,
+		TError,
+		{ pathParams: UnpinDashboardV2PathParameters },
+		TContext
+	>;
+}): UseMutationResult<
+	Awaited<ReturnType<typeof unpinDashboardV2>>,
+	TError,
+	{ pathParams: UnpinDashboardV2PathParameters },
+	TContext
+> => {
+	return useMutation(getUnpinDashboardV2MutationOptions(options));
+};
+/**
+ * Pins the dashboard for the calling user. A user can pin at most 10 dashboards; pinning when at the limit returns 409. Re-pinning an already-pinned dashboard is a no-op success.
+ * @summary Pin a dashboard for the current user (v2)
+ */
+export const pinDashboardV2 = (
+	{ id }: PinDashboardV2PathParameters,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<string>({
+		url: `/api/v2/users/me/dashboards/${id}/pins`,
+		method: 'PUT',
+		signal,
+	});
+};
+
+export const getPinDashboardV2MutationOptions = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof pinDashboardV2>>,
+		TError,
+		{ pathParams: PinDashboardV2PathParameters },
+		TContext
+	>;
+}): UseMutationOptions<
+	Awaited<ReturnType<typeof pinDashboardV2>>,
+	TError,
+	{ pathParams: PinDashboardV2PathParameters },
+	TContext
+> => {
+	const mutationKey = ['pinDashboardV2'];
+	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 pinDashboardV2>>,
+		{ pathParams: PinDashboardV2PathParameters }
+	> = (props) => {
+		const { pathParams } = props ?? {};
+
+		return pinDashboardV2(pathParams);
+	};
+
+	return { mutationFn, ...mutationOptions };
+};
+
+export type PinDashboardV2MutationResult = NonNullable<
+	Awaited<ReturnType<typeof pinDashboardV2>>
+>;
+
+export type PinDashboardV2MutationError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Pin a dashboard for the current user (v2)
+ */
+export const usePinDashboardV2 = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof pinDashboardV2>>,
+		TError,
+		{ pathParams: PinDashboardV2PathParameters },
+		TContext
+	>;
+}): UseMutationResult<
+	Awaited<ReturnType<typeof pinDashboardV2>>,
+	TError,
+	{ pathParams: PinDashboardV2PathParameters },
+	TContext
+> => {
+	return useMutation(getPinDashboardV2MutationOptions(options));
+};

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

@@ -3156,17 +3156,6 @@ export interface DashboardLinkDTO {
 	url?: string;
 }
 
-export interface DashboardPanelDisplayDTO {
-	/**
-	 * @type string
-	 */
-	description?: string;
-	/**
-	 * @type string
-	 */
-	name?: string;
-}
-
 export interface VariableDisplayDTO {
 	/**
 	 * @type string
@@ -3495,6 +3484,9 @@ export interface TelemetrytypesTelemetryFieldKeyDTO {
 	unit?: string;
 }
 
+export enum Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5LogAggregationDTOSignal {
+	logs = 'logs',
+}
 export enum TelemetrytypesSourceDTO {
 	meter = 'meter',
 }
@@ -3550,7 +3542,11 @@ export interface Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTyp
 	 * @type array
 	 */
 	selectFields?: TelemetrytypesTelemetryFieldKeyDTO[];
-	signal?: TelemetrytypesSignalDTO;
+	/**
+	 * @enum logs
+	 * @type string
+	 */
+	signal: Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5LogAggregationDTOSignal;
 	source?: TelemetrytypesSourceDTO;
 	stepInterval?: Querybuildertypesv5StepDTO;
 }
@@ -3616,6 +3612,9 @@ export interface Querybuildertypesv5MetricAggregationDTO {
 	timeAggregation?: MetrictypesTimeAggregationDTO;
 }
 
+export enum Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5MetricAggregationDTOSignal {
+	metrics = 'metrics',
+}
 export interface Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5MetricAggregationDTO {
 	/**
 	 * @type array
@@ -3668,7 +3667,11 @@ export interface Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTyp
 	 * @type array
 	 */
 	selectFields?: TelemetrytypesTelemetryFieldKeyDTO[];
-	signal?: TelemetrytypesSignalDTO;
+	/**
+	 * @enum metrics
+	 * @type string
+	 */
+	signal: Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5MetricAggregationDTOSignal;
 	source?: TelemetrytypesSourceDTO;
 	stepInterval?: Querybuildertypesv5StepDTO;
 }
@@ -3684,6 +3687,9 @@ export interface Querybuildertypesv5TraceAggregationDTO {
 	expression?: string;
 }
 
+export enum Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5TraceAggregationDTOSignal {
+	traces = 'traces',
+}
 export interface Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5TraceAggregationDTO {
 	/**
 	 * @type array
@@ -3736,7 +3742,11 @@ export interface Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTyp
 	 * @type array
 	 */
 	selectFields?: TelemetrytypesTelemetryFieldKeyDTO[];
-	signal?: TelemetrytypesSignalDTO;
+	/**
+	 * @enum traces
+	 * @type string
+	 */
+	signal: Querybuildertypesv5QueryBuilderQueryGithubComSigNozSignozPkgTypesQuerybuildertypesQuerybuildertypesv5TraceAggregationDTOSignal;
 	source?: TelemetrytypesSourceDTO;
 	stepInterval?: Querybuildertypesv5StepDTO;
 }
@@ -3871,6 +3881,17 @@ export type DashboardtypesDashboardSpecDTODatasources = {
 export enum DashboardtypesPanelKindDTO {
 	Panel = 'Panel',
 }
+export interface DashboardtypesDisplayDTO {
+	/**
+	 * @type string
+	 */
+	description?: string;
+	/**
+	 * @type string
+	 */
+	name: string;
+}
+
 export enum DashboardtypesPanelPluginVariantGithubComSigNozSignozPkgTypesDashboardtypesTimeSeriesPanelSpecDTOKind {
 	'signoz/TimeSeriesPanel' = 'signoz/TimeSeriesPanel',
 }
@@ -4419,42 +4440,36 @@ export interface DashboardtypesQuerySpecDTO {
 	 * @type string
 	 */
 	name?: string;
-	plugin?: DashboardtypesQueryPluginDTO;
+	plugin: DashboardtypesQueryPluginDTO;
 }
 
 export interface DashboardtypesQueryDTO {
-	kind?: Querybuildertypesv5RequestTypeDTO;
-	spec?: DashboardtypesQuerySpecDTO;
+	kind: Querybuildertypesv5RequestTypeDTO;
+	spec: DashboardtypesQuerySpecDTO;
 }
 
 export interface DashboardtypesPanelSpecDTO {
-	display?: DashboardPanelDisplayDTO;
+	display: DashboardtypesDisplayDTO;
 	/**
 	 * @type array
 	 */
 	links?: DashboardLinkDTO[];
-	plugin?: DashboardtypesPanelPluginDTO;
+	plugin: DashboardtypesPanelPluginDTO;
 	/**
-	 * @type array
+	 * @type array,null
 	 */
-	queries?: DashboardtypesQueryDTO[];
+	queries: DashboardtypesQueryDTO[] | null;
 }
 
 export interface DashboardtypesPanelDTO {
-	kind?: DashboardtypesPanelKindDTO;
-	spec?: DashboardtypesPanelSpecDTO;
+	kind: DashboardtypesPanelKindDTO;
+	spec: DashboardtypesPanelSpecDTO;
 }
 
-export type DashboardtypesDashboardSpecDTOPanelsAnyOf = {
+export type DashboardtypesDashboardSpecDTOPanels = {
 	[key: string]: DashboardtypesPanelDTO;
 };
 
-/**
- * @nullable
- */
-export type DashboardtypesDashboardSpecDTOPanels =
-	DashboardtypesDashboardSpecDTOPanelsAnyOf | null;
-
 export enum DashboardtypesLayoutEnvelopeGithubComPersesSpecGoDashboardGridLayoutSpecDTOKind {
 	Grid = 'Grid',
 }
@@ -4551,7 +4566,7 @@ export interface DashboardtypesListVariableSpecDTO {
 	 */
 	customAllValue?: string;
 	defaultValue?: VariableDefaultValueDTO;
-	display?: VariableDisplayDTO;
+	display: DashboardtypesDisplayDTO;
 	/**
 	 * @type string
 	 */
@@ -4593,23 +4608,23 @@ export interface DashboardtypesDashboardSpecDTO {
 	 * @type object
 	 */
 	datasources?: DashboardtypesDashboardSpecDTODatasources;
-	display?: CommonDisplayDTO;
+	display: DashboardtypesDisplayDTO;
 	/**
 	 * @type string
 	 */
 	duration?: string;
 	/**
-	 * @type array,null
+	 * @type array
 	 */
-	layouts?: DashboardtypesLayoutDTO[] | null;
+	layouts: DashboardtypesLayoutDTO[];
 	/**
 	 * @type array
 	 */
 	links?: DashboardLinkDTO[];
 	/**
-	 * @type object,null
+	 * @type object
 	 */
-	panels?: DashboardtypesDashboardSpecDTOPanels;
+	panels: DashboardtypesDashboardSpecDTOPanels;
 	/**
 	 * @type string
 	 */
@@ -4617,13 +4632,13 @@ export interface DashboardtypesDashboardSpecDTO {
 	/**
 	 * @type array
 	 */
-	variables?: DashboardtypesVariableDTO[];
+	variables: DashboardtypesVariableDTO[];
 }
 
 export enum DashboardtypesDatasourcePluginKindDTO {
 	'signoz/Datasource' = 'signoz/Datasource',
 }
-export interface TagtypesPostableTagDTO {
+export interface TagtypesGettableTagDTO {
 	/**
 	 * @type string
 	 */
@@ -4673,7 +4688,7 @@ export interface DashboardtypesGettableDashboardV2DTO {
 	/**
 	 * @type array,null
 	 */
-	tags: TagtypesPostableTagDTO[] | null;
+	tags: TagtypesGettableTagDTO[] | null;
 	/**
 	 * @type string
 	 * @format date-time
@@ -4731,6 +4746,157 @@ export interface DashboardtypesJSONPatchOperationDTO {
 	value?: unknown;
 }
 
+export enum DashboardtypesListOrderDTO {
+	asc = 'asc',
+	desc = 'desc',
+}
+export enum DashboardtypesListSortDTO {
+	updated_at = 'updated_at',
+	created_at = 'created_at',
+	name = 'name',
+}
+export interface DashboardtypesListedDashboardV2SpecDTO {
+	display?: DashboardtypesDisplayDTO;
+}
+
+export interface DashboardtypesListedDashboardForUserV2DTO {
+	/**
+	 * @type string
+	 * @format date-time
+	 */
+	createdAt?: string;
+	/**
+	 * @type string
+	 */
+	createdBy?: string;
+	/**
+	 * @type string
+	 */
+	id: string;
+	/**
+	 * @type string
+	 */
+	image?: string;
+	/**
+	 * @type boolean
+	 */
+	locked: boolean;
+	/**
+	 * @type string
+	 */
+	name: string;
+	/**
+	 * @type string
+	 */
+	orgId: string;
+	/**
+	 * @type boolean
+	 */
+	pinned: boolean;
+	/**
+	 * @type string
+	 */
+	schemaVersion: string;
+	source: DashboardtypesSourceDTO;
+	spec: DashboardtypesListedDashboardV2SpecDTO;
+	/**
+	 * @type array
+	 */
+	tags: TagtypesGettableTagDTO[];
+	/**
+	 * @type string
+	 * @format date-time
+	 */
+	updatedAt?: string;
+	/**
+	 * @type string
+	 */
+	updatedBy?: string;
+}
+
+export interface DashboardtypesListableDashboardForUserV2DTO {
+	/**
+	 * @type array
+	 */
+	dashboards: DashboardtypesListedDashboardForUserV2DTO[];
+	/**
+	 * @type array
+	 */
+	tags: TagtypesGettableTagDTO[];
+	/**
+	 * @type integer
+	 * @format int64
+	 */
+	total: number;
+}
+
+export interface DashboardtypesListedDashboardV2DTO {
+	/**
+	 * @type string
+	 * @format date-time
+	 */
+	createdAt?: string;
+	/**
+	 * @type string
+	 */
+	createdBy?: string;
+	/**
+	 * @type string
+	 */
+	id: string;
+	/**
+	 * @type string
+	 */
+	image?: string;
+	/**
+	 * @type boolean
+	 */
+	locked: boolean;
+	/**
+	 * @type string
+	 */
+	name: string;
+	/**
+	 * @type string
+	 */
+	orgId: string;
+	/**
+	 * @type string
+	 */
+	schemaVersion: string;
+	source: DashboardtypesSourceDTO;
+	spec: DashboardtypesListedDashboardV2SpecDTO;
+	/**
+	 * @type array
+	 */
+	tags: TagtypesGettableTagDTO[];
+	/**
+	 * @type string
+	 * @format date-time
+	 */
+	updatedAt?: string;
+	/**
+	 * @type string
+	 */
+	updatedBy?: string;
+}
+
+export interface DashboardtypesListableDashboardV2DTO {
+	/**
+	 * @type array
+	 */
+	dashboards: DashboardtypesListedDashboardV2DTO[];
+	/**
+	 * @type array
+	 */
+	tags: TagtypesGettableTagDTO[];
+	/**
+	 * @type integer
+	 * @format int64
+	 */
+	total: number;
+}
+
 export enum DashboardtypesPanelPluginKindDTO {
 	'signoz/TimeSeriesPanel' = 'signoz/TimeSeriesPanel',
 	'signoz/BarChartPanel' = 'signoz/BarChartPanel',
@@ -4747,6 +4913,17 @@ export type DashboardtypesPatchableDashboardV2DTO =
 	| DashboardtypesJSONPatchOperationDTO[]
 	| null;
 
+export interface TagtypesPostableTagDTO {
+	/**
+	 * @type string
+	 */
+	key: string;
+	/**
+	 * @type string
+	 */
+	value: string;
+}
+
 export interface DashboardtypesPostableDashboardV2DTO {
 	/**
 	 * @type boolean
@@ -9649,6 +9826,40 @@ export type GetUserPreference200 = {
 export type UpdateUserPreferencePathParameters = {
 	name: string;
 };
+export type ListDashboardsV2Params = {
+	/**
+	 * @type string
+	 * @description undefined
+	 */
+	query?: string;
+	/**
+	 * @description undefined
+	 */
+	sort?: DashboardtypesListSortDTO;
+	/**
+	 * @description undefined
+	 */
+	order?: DashboardtypesListOrderDTO;
+	/**
+	 * @type integer
+	 * @description undefined
+	 */
+	limit?: number;
+	/**
+	 * @type integer
+	 * @description undefined
+	 */
+	offset?: number;
+};
+
+export type ListDashboardsV2200 = {
+	data: DashboardtypesListableDashboardV2DTO;
+	/**
+	 * @type string
+	 */
+	status: string;
+};
+
 export type CreateDashboardV2201 = {
 	data: DashboardtypesGettableDashboardV2DTO;
 	/**
@@ -9657,6 +9868,9 @@ export type CreateDashboardV2201 = {
 	status: string;
 };
 
+export type DeleteDashboardV2PathParameters = {
+	id: string;
+};
 export type GetDashboardV2PathParameters = {
 	id: string;
 };
@@ -10489,6 +10703,46 @@ export type GetMyUser200 = {
 	status: string;
 };
 
+export type ListDashboardsForUserV2Params = {
+	/**
+	 * @type string
+	 * @description undefined
+	 */
+	query?: string;
+	/**
+	 * @description undefined
+	 */
+	sort?: DashboardtypesListSortDTO;
+	/**
+	 * @description undefined
+	 */
+	order?: DashboardtypesListOrderDTO;
+	/**
+	 * @type integer
+	 * @description undefined
+	 */
+	limit?: number;
+	/**
+	 * @type integer
+	 * @description undefined
+	 */
+	offset?: number;
+};
+
+export type ListDashboardsForUserV2200 = {
+	data: DashboardtypesListableDashboardForUserV2DTO;
+	/**
+	 * @type string
+	 */
+	status: string;
+};
+
+export type UnpinDashboardV2PathParameters = {
+	id: string;
+};
+export type PinDashboardV2PathParameters = {
+	id: string;
+};
 export type GetHosts200 = {
 	data: ZeustypesGettableHostDTO;
 	/**

frontend/src/components/QueryBuilderV2/QueryV2/QuerySearch/QuerySearch.styles.scss

@@ -1,5 +1,11 @@
 // TODO: Improve the styling of the query aggregation container and its components. - @YounixM , @H4ad
 
+$dropdown-base-height: 250px;
+$recents-header-height: 30px;
+$recent-row-height: 36px;
+// how many recents are rendered, this caps how tall the dropdown can grow to fit them.
+$max-recents-shown: 5;
+
 .code-mirror-where-clause {
 	width: 100%;
 	display: flex;
@@ -117,7 +123,23 @@
 				width: 100% !important;
 				max-width: 100% !important;
 				font-family: 'Space Mono', monospace !important;
-				min-height: 200px !important;
+				max-height: $dropdown-base-height !important;
+				overflow-y: auto !important;
+
+				// Recents render at the top of the dropdown ahead of regular suggestions.
+				// At the base max-height, having recents in view would crowd out the
+				// suggestion list below. This loop grows the dropdown by one row's worth
+				// of height for every recent present (up to $max-recents-shown), plus the
+				// section header. `:has(> li:nth-of-type(N) .cm-completionIcon-recent)`
+				// matches when the Nth child of <ul> is a recent — i.e. there are at
+				// least N recents visible.
+				@for $i from 1 through $max-recents-shown {
+					&:has(> li:nth-of-type(#{$i}) .cm-completionIcon-recent) {
+						max-height: $dropdown-base-height +
+							$recents-header-height +
+							($i * $recent-row-height) !important;
+					}
+				}
 
 				&::-webkit-scrollbar {
 					width: 0.3rem;
@@ -133,6 +155,19 @@
 					background: transparent;
 				}
 
+				completion-section {
+					display: block;
+					padding: 10px 12px 6px;
+					font-size: 10px !important;
+					font-weight: 700;
+					letter-spacing: 0.08em;
+					text-transform: uppercase;
+					color: var(--l3-foreground, var(--l2-foreground));
+					opacity: 0.7;
+					border-bottom: 0;
+					background-color: transparent;
+				}
+
 				li {
 					width: 100% !important;
 					max-width: 100% !important;
@@ -159,11 +194,78 @@
 						display: none !important;
 					}
 
+					.cm-completionDetail {
+						margin-left: auto;
+						font-style: normal;
+						font-size: var(--periscope-font-size-small, 11px);
+						font-weight: 600;
+						letter-spacing: 0.06em;
+						text-transform: uppercase;
+						opacity: 0.55;
+					}
+
 					&[aria-selected='true'] {
 						background: var(--l3-background) !important;
 						font-weight: 600 !important;
 					}
 				}
+
+				li:has(.cm-completionIcon-recent) {
+					&:hover .cm-recent-delete,
+					&[aria-selected='true'] .cm-recent-delete {
+						opacity: 1;
+					}
+				}
+
+				li .cm-completionLabel {
+					flex: 1;
+					min-width: 0;
+					white-space: nowrap;
+					overflow: hidden;
+					text-overflow: ellipsis;
+				}
+
+				.cm-recent-delete {
+					margin-left: 8px;
+					display: inline-flex;
+					align-items: center;
+					justify-content: center;
+					width: 20px;
+					height: 20px;
+					padding: 0;
+					border: 0;
+					border-radius: 4px;
+					background: transparent;
+					color: var(--l2-foreground);
+					font-size: 18px;
+					line-height: 1;
+					cursor: pointer;
+					opacity: 0.5;
+					transition:
+						opacity 0.12s ease,
+						background-color 0.12s ease;
+
+					&:hover {
+						opacity: 1;
+						background: color-mix(in srgb, var(--l2-foreground) 18%, transparent);
+					}
+				}
+			}
+
+			&::after {
+				content: '↓↑ to navigate · ↵ to apply · esc to dismiss';
+				display: block;
+				padding: 8px 12px;
+				border-top: 1px solid var(--l1-border);
+				font-family: 'Space Mono', monospace;
+				font-size: 11px;
+				font-weight: 500;
+				letter-spacing: 0.02em;
+				color: var(--l2-foreground);
+				opacity: 0.6;
+				background: color-mix(in srgb, var(--l1-background) 50%, transparent);
+				border-bottom-left-radius: 4px;
+				border-bottom-right-radius: 4px;
 			}
 		}
 

frontend/src/components/QueryBuilderV2/QueryV2/QuerySearch/QuerySearch.tsx

@@ -46,8 +46,15 @@ import {
 import { validateQuery } from 'utils/queryValidationUtils';
 import { unquote } from 'utils/stringUtils';
 
-import { queryExamples } from './constants';
-import { combineInitialAndUserExpression } from './utils';
+import { getRecentQueries } from 'lib/recentQueries/getRecentQueries';
+import type { SignalType } from 'types/api/v5/queryRange';
+
+import { queryExamples, SUGGESTIONS_SECTION } from './constants';
+import {
+	combineInitialAndUserExpression,
+	getRecentOptions,
+	renderRecentDeleteButton,
+} from './utils';
 
 import './QuerySearch.styles.scss';
 
@@ -1250,6 +1257,41 @@ function QuerySearch({
 		};
 	}
 
+	const signal = dataSource as SignalType;
+
+	function combinedSuggestions(
+		context: CompletionContext,
+	): CompletionResult | null {
+		const fullDoc = context.state.doc.toString();
+		const recentOptions = getRecentOptions(
+			getRecentQueries(signal, signalSource ?? ''),
+			fullDoc,
+		);
+		const result = autoSuggestions(context);
+
+		const suggestionOptions = (result?.options || []).map((opt) => ({
+			...opt,
+			section: SUGGESTIONS_SECTION,
+		}));
+
+		if (recentOptions.length === 0 && suggestionOptions.length === 0) {
+			return result;
+		}
+
+		if (!result) {
+			return {
+				from: 0,
+				to: fullDoc.length,
+				options: recentOptions,
+			};
+		}
+
+		return {
+			...result,
+			options: [...recentOptions, ...suggestionOptions],
+		};
+	}
+
 	// Effect to handle focus state and trigger suggestions
 	useEffect(() => {
 		const clearTimeout = toggleSuggestions(10);
@@ -1398,11 +1440,12 @@ function QuerySearch({
 					})}
 					extensions={[
 						autocompletion({
-							override: [autoSuggestions],
+							override: [combinedSuggestions],
 							defaultKeymap: true,
 							closeOnBlur: true,
 							activateOnTyping: true,
 							maxRenderedOptions: 50,
+							addToOptions: [{ render: renderRecentDeleteButton, position: 100 }],
 						}),
 						javascript({ jsx: false, typescript: false }),
 						EditorView.lineWrapping,

frontend/src/components/QueryBuilderV2/QueryV2/QuerySearch/constants.ts

@@ -1,3 +1,14 @@
+export const RECENTS_SECTION = { name: 'Recent searches', rank: 1 } as const;
+export const SUGGESTIONS_SECTION = { name: 'Suggestions', rank: 2 } as const;
+
+// Custom CodeMirror Completion.type for recent-query entries. Used to discriminate
+// recents from regular autocomplete completions in renderers and event handlers.
+export const RECENT_COMPLETION_TYPE = 'recent';
+
+// Max number of recents rendered in the autocomplete dropdown.
+//  Do change $max-recents-shown: in QuerySearch.styles.scss if you change this.
+export const RECENTS_DISPLAY_CAP = 5;
+
 export const queryExamples = [
 	{
 		label: 'Basic Query',

frontend/src/components/QueryBuilderV2/QueryV2/QuerySearch/utils.ts

@@ -1,3 +1,19 @@
+import { closeCompletion, startCompletion } from '@codemirror/autocomplete';
+import type { Completion } from '@codemirror/autocomplete';
+import type { EditorView } from '@uiw/react-codemirror';
+import dayjs from 'dayjs';
+import { normalizeFilterExpression } from 'lib/recentQueries/normalize';
+import * as recentQueriesStore from 'lib/recentQueries/recentQueriesStore';
+import type { RecentQueryEntry } from 'lib/recentQueries/types';
+import type { SignalType } from 'types/api/v5/queryRange';
+import 'utils/timeUtils';
+
+import {
+	RECENT_COMPLETION_TYPE,
+	RECENTS_DISPLAY_CAP,
+	RECENTS_SECTION,
+} from './constants';
+
 export function combineInitialAndUserExpression(
 	initial: string,
 	user: string,
@@ -38,3 +54,106 @@ export function getUserExpressionFromCombined(
 	}
 	return c;
 }
+
+// Filters and projects a list of recent-query entries into CodeMirror completions.
+// Entries are supplied by the caller (typically via the useRecents hook) so this
+// function stays pure and React doesn't have to re-subscribe inside CodeMirror's
+// autocomplete callback.
+export function getRecentOptions(
+	entries: RecentQueryEntry[],
+	fullDoc: string,
+): Completion[] {
+	const normalizedDoc = normalizeFilterExpression(fullDoc);
+
+	const matches = entries
+		.filter((e) => {
+			const normalizedRecent = normalizeFilterExpression(e.filter.expression);
+			if (normalizedRecent === normalizedDoc) {
+				return false;
+			}
+			if (normalizedDoc === '') {
+				return true;
+			}
+			return normalizedRecent.includes(normalizedDoc);
+		})
+		.slice(0, RECENTS_DISPLAY_CAP);
+
+	return matches.map((entry, index) => ({
+		label: entry.filter.expression,
+		type: RECENT_COMPLETION_TYPE,
+		// CodeMirror sorts within a section by boost desc, then label asc. The store
+		// returns entries newest-first, so we mirror that by giving the newest entry
+		// the highest boost — otherwise CM falls back to alphabetical order and the
+		// "most recently used" expectation breaks. Stays within the recents section
+		// because section.rank keeps recents above suggestions regardless of boost.
+		boost: matches.length - index,
+		section: RECENTS_SECTION,
+		detail: dayjs(entry.lastUsedAt).fromNow(),
+		recentId: entry.id,
+		recentSignal: entry.signal,
+		recentSource: entry.source,
+		apply: (view: EditorView): void => {
+			view.dispatch({
+				changes: {
+					from: 0,
+					to: view.state.doc.length,
+					insert: entry.filter.expression,
+				},
+				selection: { anchor: entry.filter.expression.length },
+			});
+			closeCompletion(view);
+		},
+	}));
+}
+
+export function renderRecentDeleteButton(
+	completion: Completion,
+	_state: unknown,
+	view: EditorView | null,
+): Node | null {
+	if (completion.type !== RECENT_COMPLETION_TYPE) {
+		return null;
+	}
+
+	const c = completion as Completion & {
+		recentId?: string;
+		recentSignal?: SignalType;
+		recentSource?: string;
+	};
+
+	const btn = document.createElement('button');
+	btn.type = 'button';
+	btn.className = 'cm-recent-delete';
+	btn.setAttribute('aria-label', 'Remove from recent searches');
+	btn.title = 'Remove from recent searches';
+	btn.textContent = '×';
+	queueMicrotask(() => {
+		if (btn.parentElement) {
+			btn.parentElement.title = completion.label;
+		}
+	});
+
+	const stop = (e: Event): void => {
+		e.preventDefault();
+		e.stopPropagation();
+	};
+	// CodeMirror's autocomplete closes the popup on pointerdown / mousedown outside
+	// the editor. The delete button lives inside the popup, so we must stop those
+	// events early — otherwise clicking × would dismiss the dropdown before the
+	// click handler fires and the entry wouldn't actually get removed.
+	btn.addEventListener('pointerdown', stop);
+	btn.addEventListener('mousedown', stop);
+	btn.addEventListener('click', (e) => {
+		stop(e);
+		if (!c.recentId || !c.recentSignal) {
+			return;
+		}
+		recentQueriesStore.remove(c.recentId, c.recentSignal, c.recentSource ?? '');
+		if (view) {
+			view.focus();
+			startCompletion(view);
+		}
+	});
+
+	return btn;
+}

frontend/src/constants/queryBuilderOperators.ts

@@ -6,6 +6,10 @@ import {
 import { SelectOption } from 'types/common/select';
 
 export const metricAggregateOperatorOptions: SelectOption<string, string>[] = [
+	{
+		value: MetricAggregateOperator.NOOP,
+		label: 'No aggregation',
+	},
 	{
 		value: MetricAggregateOperator.COUNT,
 		label: 'Count',

frontend/src/constants/reactQueryKeys.ts

@@ -36,6 +36,7 @@ export const REACT_QUERY_KEY = {
 	GET_TRACE_V4_WATERFALL: 'GET_TRACE_V4_WATERFALL',
 	GET_TRACE_AGGREGATIONS: 'GET_TRACE_AGGREGATIONS',
 	GET_TRACE_V2_FLAMEGRAPH: 'GET_TRACE_V2_FLAMEGRAPH',
+	GET_TRACE_V3_FLAMEGRAPH: 'GET_TRACE_V3_FLAMEGRAPH',
 	GET_POD_LIST: 'GET_POD_LIST',
 	GET_NODE_LIST: 'GET_NODE_LIST',
 	GET_DEPLOYMENT_LIST: 'GET_DEPLOYMENT_LIST',

frontend/src/container/AIAssistant/getAutoContexts.ts

@@ -1,6 +1,7 @@
 import type { MessageContext } from 'api/ai-assistant/chat';
 import { QueryParams } from 'constants/query';
 import ROUTES from 'constants/routes';
+import { deserialize } from 'lib/compositeQuery/serializer';
 import { matchPath } from 'react-router-dom';
 
 /**
@@ -294,11 +295,11 @@ function collectSharedMetadata(
 	// Query Builder state — URL-encoded JSON written by `QueryBuilderProvider`.
 	const compositeQueryRaw = params.get(QueryParams.compositeQuery);
 	if (compositeQueryRaw) {
-		try {
-			out.query = JSON.parse(decodeURIComponent(compositeQueryRaw));
-		} catch {
-			// Malformed JSON in the URL — drop silently rather than throw
-			// inside a context-collection helper.
+		// Decode through the serializer seam (handles every tier + malformed
+		// input → null); never JSON.parse the raw URL value.
+		const decodedQuery = deserialize(compositeQueryRaw);
+		if (decodedQuery) {
+			out.query = decodedQuery;
 		}
 	}
 

frontend/src/container/AIAssistant/hooks/useSpeechRecognition.ts

@@ -40,13 +40,31 @@ type SpeechRecognitionConstructor = new () => ISpeechRecognition;
 
 // ── Vendor-prefix shim for Safari / older browsers ────────────────────────────
 
-const SpeechRecognitionAPI: SpeechRecognitionConstructor | null =
-	typeof window !== 'undefined'
-		? // eslint-disable-next-line @typescript-eslint/no-explicit-any
-			((window as any).SpeechRecognition ??
+// Some hardened/enterprise browsers install a getter
+// on window.SpeechRecognition that THROWS on access ("Web Speech API is disabled
+// due to your security policy") instead of leaving the property undefined.
+// Because this resolves at module-evaluation time, an uncaught throw here aborts
+// the entire bundle and the app renders a blank page. Read defensively so a
+// throwing getter degrades to "unsupported" rather than crashing the app.
+function resolveSpeechRecognitionAPI(): SpeechRecognitionConstructor | null {
+	if (typeof window === 'undefined') {
+		return null;
+	}
+	try {
+		return (
+			// eslint-disable-next-line @typescript-eslint/no-explicit-any
+			(window as any).SpeechRecognition ??
+			// eslint-disable-next-line @typescript-eslint/no-explicit-any
 			(window as any).webkitSpeechRecognition ??
-			null)
-		: null;
+			null
+		);
+	} catch {
+		return null;
+	}
+}
+
+const SpeechRecognitionAPI: SpeechRecognitionConstructor | null =
+	resolveSpeechRecognitionAPI();
 
 export type SpeechRecognitionError =
 	| 'not-supported'

frontend/src/container/InfraMonitoringK8s/Clusters/constants.ts

@@ -796,7 +796,7 @@ export const getClusterMetricsQueryPayload = (
 								key: k8sDeploymentDesiredKey,
 								type: 'Gauge',
 							},
-							aggregateOperator: 'avg',
+							aggregateOperator: 'latest',
 							dataSource: DataSource.METRICS,
 							disabled: false,
 							expression: 'B',
@@ -839,7 +839,7 @@ export const getClusterMetricsQueryPayload = (
 							reduceTo: ReduceOperators.LAST,
 							spaceAggregation: 'sum',
 							stepInterval: 60,
-							timeAggregation: 'avg',
+							timeAggregation: 'latest',
 						},
 					],
 					queryFormulas: [],

frontend/src/container/InfraMonitoringK8s/EntityDetailsUtils/EntityEvents/EntityEvents.tsx

@@ -40,6 +40,7 @@ import { K8S_ENTITY_EVENTS_EXPRESSION_KEY, useEntityEvents } from './hooks';
 import { getEntityEventsQueryPayload, isEventsKeyNotFoundError } from './utils';
 
 import styles from './EntityEvents.module.scss';
+import { useTimezone } from 'providers/Timezone';
 
 interface EventDataType {
 	key: string;
@@ -167,17 +168,25 @@ function EntityEventsContent({
 		[events],
 	);
 
-	const columns: TableColumnsType<EventDataType> = [
-		{ title: 'Severity', dataIndex: 'severity', key: 'severity', width: 100 },
-		{
-			title: 'Timestamp',
-			dataIndex: 'timestamp',
-			width: 240,
-			ellipsis: true,
-			key: 'timestamp',
-		},
-		{ title: 'Body', dataIndex: 'body', key: 'body' },
-	];
+	const { formatTimezoneAdjustedTimestamp } = useTimezone();
+	const columns: TableColumnsType<EventDataType> = useMemo(
+		() => [
+			{ title: 'Severity', dataIndex: 'severity', key: 'severity', width: 100 },
+			{
+				title: 'Timestamp',
+				dataIndex: 'timestamp',
+				width: 240,
+				ellipsis: true,
+				key: 'timestamp',
+				render: (value: string | number): string =>
+					formatTimezoneAdjustedTimestamp(
+						typeof value === 'string' ? value : value / 1e6,
+					),
+			},
+			{ title: 'Body', dataIndex: 'body', key: 'body' },
+		],
+		[formatTimezoneAdjustedTimestamp],
+	);
 
 	const handleExpandRowIcon = ({
 		expanded,

frontend/src/container/InfraMonitoringK8s/EntityDetailsUtils/EntityTraces/EntityTraces.tsx

@@ -41,6 +41,7 @@ import { getTraceListColumns } from './traceListColumns';
 import { getEntityTracesQueryPayload } from './utils';
 
 import styles from './EntityTraces.module.scss';
+import { useTimezone } from 'providers/Timezone';
 
 interface Props {
 	timeRange: {
@@ -136,7 +137,11 @@ function EntityTracesContent({
 		[timeRange.startTime, timeRange.endTime, userExpression],
 	);
 
-	const traceListColumns = getTraceListColumns(selectedEntityTracesColumns);
+	const { formatTimezoneAdjustedTimestamp } = useTimezone();
+	const traceListColumns = getTraceListColumns(
+		selectedEntityTracesColumns,
+		formatTimezoneAdjustedTimestamp,
+	);
 
 	const isKeyNotFound = isKeyNotFoundError(error);
 	const isDataEmpty =

frontend/src/container/InfraMonitoringK8s/EntityDetailsUtils/EntityTraces/traceListColumns.tsx

@@ -1,15 +1,14 @@
 import { TableColumnsType as ColumnsType } from 'antd';
 import { Badge } from '@signozhq/ui/badge';
 import { Typography } from '@signozhq/ui/typography';
-import { DATE_TIME_FORMATS } from 'constants/dateTimeFormats';
 import { getMs } from 'container/Trace/Filters/Panel/PanelBody/Duration/util';
 import {
 	BlockLink,
 	getTraceLink,
 } from 'container/TracesExplorer/ListView/utils';
-import dayjs from 'dayjs';
 import { RowData } from 'lib/query/createTableColumnsFromQuery';
 import { BaseAutocompleteData } from 'types/api/queryBuilder/queryAutocompleteResponse';
+import { FormatTimezoneAdjustedTimestamp } from 'hooks/useTimezoneFormatter/useTimezoneFormatter';
 
 const keyToLabelMap: Record<string, string> = {
 	timestamp: 'Timestamp',
@@ -59,6 +58,7 @@ const getValueForKey = (data: Record<string, any>, key: string): any => {
 
 export const getTraceListColumns = (
 	selectedColumns: BaseAutocompleteData[],
+	formatTimezoneAdjustedTimestamp: FormatTimezoneAdjustedTimestamp,
 ): ColumnsType<RowData> => {
 	const columns: ColumnsType<RowData> =
 		selectedColumns.map(({ dataType, key, type }) => ({
@@ -73,8 +73,8 @@ export const getTraceListColumns = (
 				if (primaryKey === 'timestamp') {
 					const date =
 						typeof value === 'string'
-							? dayjs(value).format(DATE_TIME_FORMATS.ISO_DATETIME_MS)
-							: dayjs(value / 1e6).format(DATE_TIME_FORMATS.ISO_DATETIME_MS);
+							? formatTimezoneAdjustedTimestamp(value)
+							: formatTimezoneAdjustedTimestamp(value / 1e6);
 
 					return (
 						<BlockLink to={getTraceLink(itemData)} openInNewTab>

frontend/src/container/InfraMonitoringK8s/Pods/constants.ts

@@ -1366,7 +1366,7 @@ export const getPodMetricsQueryPayload = (
 							orderBy: [],
 							queryName: 'B',
 							reduceTo: ReduceOperators.AVG,
-							spaceAggregation: 'avg',
+							spaceAggregation: 'sum',
 							stepInterval: 60,
 							timeAggregation: 'avg',
 						},

frontend/src/container/ResetPassword/ResetPassword.styles.scss

@@ -142,6 +142,15 @@
 		}
 	}
 
+	.reset-password-back-action {
+		margin-top: var(--spacing-12);
+		width: 100%;
+
+		button {
+			width: 100%;
+		}
+	}
+
 	@media (max-width: 768px) {
 		width: 100%;
 		padding: 0 16px;

frontend/src/container/ResetPassword/TokenError.tsx

@@ -1,7 +1,10 @@
-import { CircleAlert } from '@signozhq/icons';
+import { ArrowLeft, CircleAlert } from '@signozhq/icons';
+import { Button } from '@signozhq/ui/button';
 import { Typography } from '@signozhq/ui/typography';
 import AuthError from 'components/AuthError/AuthError';
 import AuthPageContainer from 'components/AuthPageContainer';
+import ROUTES from 'constants/routes';
+import history from 'lib/history';
 import APIError from 'types/api/error';
 
 import './ResetPassword.styles.scss';
@@ -59,6 +62,16 @@ function TokenError({ error }: TokenErrorProps): JSX.Element {
 					</Typography.Text>
 				</div>
 				{error && <AuthError error={error} />}
+				<div className="reset-password-back-action">
+					<Button
+						variant="solid"
+						data-testid="back-to-login"
+						prefix={<ArrowLeft size={12} />}
+						onClick={(): void => history.push(ROUTES.LOGIN)}
+					>
+						Back to login
+					</Button>
+				</div>
 			</div>
 		</AuthPageContainer>
 	);

frontend/src/container/SideNav/SideNav.styles.scss

@@ -119,6 +119,10 @@
 
 				border-radius: 0px 4px 4px 0px;
 				background: var(--l3-background);
+
+				&.version-container-standalone {
+					border-radius: 4px;
+				}
 			}
 
 			.version {

frontend/src/container/SideNav/SideNav.tsx

@@ -1010,7 +1010,7 @@ function SideNav({ isPinned }: { isPinned: boolean }): JSX.Element {
 								<img src={signozBrandLogoUrl} alt="SigNoz" />
 							</div>
 
-							{licenseTag && (
+							{(licenseTag || currentVersion) && (
 								<div
 									className={cx(
 										'brand-title-section',
@@ -1021,7 +1021,7 @@ function SideNav({ isPinned }: { isPinned: boolean }): JSX.Element {
 											'version-update-notification',
 									)}
 								>
-									<span className="license-type"> {licenseTag} </span>
+									{licenseTag && <span className="license-type"> {licenseTag} </span>}
 
 									{currentVersion && (
 										<Tooltip
@@ -1043,7 +1043,12 @@ function SideNav({ isPinned }: { isPinned: boolean }): JSX.Element {
 												)
 											}
 										>
-											<div className="version-container">
+											<div
+												className={cx(
+													'version-container',
+													!licenseTag && 'version-container-standalone',
+												)}
+											>
 												<span
 													className={cx('version', changelog && 'version-clickable')}
 													onClick={onClickVersionHandler}

frontend/src/container/TopNav/DateTimeSelectionV2/index.tsx

@@ -35,6 +35,7 @@ import { GlobalReducer } from 'types/reducer/globalTime';
 import { addCustomTimeRange } from 'utils/customTimeRangeUtils';
 import { persistTimeDurationForRoute } from 'utils/metricsTimeStorageUtils';
 import { normalizeTimeToMs } from 'utils/timeUtils';
+import { serialize } from 'lib/compositeQuery/serializer';
 import { v4 as uuid } from 'uuid';
 
 import AutoRefresh from '../AutoRefreshV2';
@@ -299,7 +300,7 @@ function DateTimeSelection({
 				})),
 			},
 		};
-		return encodeURIComponent(JSON.stringify(updatedCompositeQuery));
+		return serialize(updatedCompositeQuery);
 	}, [currentQuery]);
 
 	const onSelectHandler = useCallback(

frontend/src/hooks/queryBuilder/__tests__/useGetCompositeQueryParam.test.ts

@@ -0,0 +1,26 @@
+import { renderHook } from '@testing-library/react';
+import { initialQueriesMap } from 'constants/queryBuilder';
+import { useGetCompositeQueryParam } from 'hooks/queryBuilder/useGetCompositeQueryParam';
+
+let mockUrlQuery = new URLSearchParams();
+
+jest.mock('hooks/useUrlQuery', () => ({
+	__esModule: true,
+	default: (): URLSearchParams => mockUrlQuery,
+}));
+
+describe('useGetCompositeQueryParam', () => {
+	it('decodes a legacy compositeQuery param', () => {
+		mockUrlQuery = new URLSearchParams({
+			compositeQuery: encodeURIComponent(JSON.stringify(initialQueriesMap.logs)),
+		});
+		const { result } = renderHook(() => useGetCompositeQueryParam());
+		expect(result.current?.builder.queryData[0].dataSource).toBe('logs');
+	});
+
+	it('returns null when the param is absent', () => {
+		mockUrlQuery = new URLSearchParams();
+		const { result } = renderHook(() => useGetCompositeQueryParam());
+		expect(result.current).toBeNull();
+	});
+});

frontend/src/hooks/queryBuilder/useGetCompositeQueryParam.ts

@@ -1,12 +1,7 @@
-import { useMemo } from 'react';
-import {
-	convertAggregationToExpression,
-	convertFiltersToExpressionWithExistingQuery,
-	convertHavingToExpression,
-} from 'components/QueryBuilderV2/utils';
 import { QueryParams } from 'constants/query';
 import useUrlQuery from 'hooks/useUrlQuery';
-import { BaseAutocompleteData } from 'types/api/queryBuilder/queryAutocompleteResponse';
+import { deserialize } from 'lib/compositeQuery/serializer';
+import { useMemo } from 'react';
 import { Query } from 'types/api/queryBuilder/queryBuilderData';
 
 export const useGetCompositeQueryParam = (): Query | null => {
@@ -14,59 +9,9 @@ export const useGetCompositeQueryParam = (): Query | null => {
 
 	return useMemo(() => {
 		const compositeQuery = urlQuery.get(QueryParams.compositeQuery);
-		let parsedCompositeQuery: Query | null = null;
-
-		try {
-			if (!compositeQuery) {
-				return null;
-			}
-
-			// MDN reference - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent#decoding_query_parameters_from_a_url
-			// MDN reference to support + characters using encoding - https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams#preserving_plus_signs add later
-			parsedCompositeQuery = JSON.parse(
-				decodeURIComponent(compositeQuery.replace(/\+/g, ' ')),
-			);
-
-			// Convert old format to new format for each query in builder.queryData
-			if (parsedCompositeQuery?.builder?.queryData) {
-				parsedCompositeQuery.builder.queryData =
-					parsedCompositeQuery.builder.queryData.map((query) => {
-						const existingExpression = query.filter?.expression || '';
-						const convertedQuery = { ...query };
-
-						const convertedFilter = convertFiltersToExpressionWithExistingQuery(
-							query.filters || { items: [], op: 'AND' },
-							existingExpression,
-						);
-						convertedQuery.filter = convertedFilter.filter;
-						convertedQuery.filters = convertedFilter.filters;
-
-						// Convert having if needed
-						if (Array.isArray(query.having)) {
-							const convertedHaving = convertHavingToExpression(query.having);
-							convertedQuery.having = convertedHaving;
-						}
-
-						// Convert aggregation if needed
-						if (!query.aggregations && query.aggregateOperator) {
-							const convertedAggregation = convertAggregationToExpression({
-								aggregateOperator: query.aggregateOperator,
-								aggregateAttribute: query.aggregateAttribute as BaseAutocompleteData,
-								dataSource: query.dataSource,
-								timeAggregation: query.timeAggregation,
-								spaceAggregation: query.spaceAggregation,
-								reduceTo: query.reduceTo,
-								temporality: query.temporality,
-							}) as any; // Type assertion to handle union type
-							convertedQuery.aggregations = convertedAggregation;
-						}
-						return convertedQuery;
-					});
-			}
-		} catch (e) {
-			parsedCompositeQuery = null;
+		if (!compositeQuery) {
+			return null;
 		}
-
-		return parsedCompositeQuery;
+		return deserialize(compositeQuery);
 	}, [urlQuery]);
 };

frontend/src/hooks/trace/useGetTraceFlamegraphV3.tsx

@@ -0,0 +1,42 @@
+import { getFlamegraph } from 'api/generated/services/tracedetail';
+import {
+	SpantypesGettableFlamegraphTraceDTO,
+	TelemetrytypesTelemetryFieldKeyDTO,
+} from 'api/generated/services/sigNoz.schemas';
+import { REACT_QUERY_KEY } from 'constants/reactQueryKeys';
+import { useQuery, UseQueryResult } from 'react-query';
+import { TelemetryFieldKey } from 'types/api/v5/queryRange';
+
+export interface GetTraceFlamegraphV3Props {
+	traceId: string;
+	selectedSpanId?: string;
+	selectFields?: TelemetryFieldKey[];
+	enabled?: boolean;
+}
+
+const useGetTraceFlamegraphV3 = (
+	props: GetTraceFlamegraphV3Props,
+): UseQueryResult<SpantypesGettableFlamegraphTraceDTO, unknown> =>
+	useQuery({
+		queryFn: () =>
+			getFlamegraph(
+				{ traceID: props.traceId },
+				{
+					selectedSpanId: props.selectedSpanId,
+					// v5 TelemetryFieldKey and the generated DTO are runtime-identical; only
+					// the literal-union vs enum nominal types differ
+					selectFields: props.selectFields as TelemetrytypesTelemetryFieldKeyDTO[],
+				},
+			).then((res) => res.data),
+		queryKey: [
+			REACT_QUERY_KEY.GET_TRACE_V3_FLAMEGRAPH,
+			props.traceId,
+			props.selectedSpanId,
+			props.selectFields,
+		],
+		enabled: props.enabled,
+		keepPreviousData: true,
+		refetchOnWindowFocus: false,
+	});
+
+export default useGetTraceFlamegraphV3;

frontend/src/hooks/useSafeNavigate.ts

@@ -1,6 +1,7 @@
+import { deserialize } from 'lib/compositeQuery/serializer';
+import { isEqual } from 'lodash-es';
 import { useCallback } from 'react';
 import { useLocation, useNavigate } from 'react-router-dom-v5-compat';
-import { cloneDeep, isEqual } from 'lodash-es';
 import { withBasePath } from 'utils/basePath';
 
 interface NavigateOptions {
@@ -38,16 +39,20 @@ const areUrlsEffectivelySame = (url1: URL, url2: URL): boolean => {
 					return false;
 				}
 
-				const decoded1 = JSON.parse(decodeURIComponent(query1));
-				const decoded2 = JSON.parse(decodeURIComponent(query2));
+				// Decode through the serializer seam: the URL value may be in any
+				// tier (legacy JSON or a tagged format), so never JSON.parse it raw.
+				const decoded1 = deserialize(query1);
+				const decoded2 = deserialize(query2);
 
-				const filtered1 = cloneDeep(decoded1);
-				const filtered2 = cloneDeep(decoded2);
+				if (!decoded1 || !decoded2) {
+					return false;
+				}
 
-				delete filtered1.id;
-				delete filtered2.id;
+				// Ignore the volatile `id` when comparing queries.
+				const { id: _id1, ...rest1 } = decoded1;
+				const { id: _id2, ...rest2 } = decoded2;
 
-				return isEqual(filtered1, filtered2);
+				return isEqual(rest1, rest2);
 			} catch (error) {
 				console.warn('Error comparing compositeQuery:', error);
 				return false;

frontend/src/hooks/useTimezoneFormatter/useTimezoneFormatter.ts

@@ -22,11 +22,13 @@ interface CacheEntry {
 const CACHE_SIZE_LIMIT = 1000;
 const CACHE_CLEANUP_PERCENTAGE = 0.5; // Remove 50% when limit is reached
 
+export type FormatTimezoneAdjustedTimestamp = (
+	input: TimestampInput,
+	format?: string,
+) => string;
+
 function useTimezoneFormatter({ userTimezone }: { userTimezone: Timezone }): {
-	formatTimezoneAdjustedTimestamp: (
-		input: TimestampInput,
-		format?: string,
-	) => string;
+	formatTimezoneAdjustedTimestamp: FormatTimezoneAdjustedTimestamp;
 } {
 	// Initialize cache using useMemo to persist between renders
 	const cache = useMemo(() => new Map<string, CacheEntry>(), []);

frontend/src/lib/compositeQuery/__tests__/__snapshots__/baseline.test.ts.snap

@@ -0,0 +1,213 @@
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
+//
+// ╔════════════════════════════════════════════════════════════════════════════╗
+// ║                        ⚠️  NEVER UPDATE THESE ⚠️                            ║
+// ╠════════════════════════════════════════════════════════════════════════════╣
+// ║  These snapshots guard URL backward compatibility. Every emitted URL       ║
+// ║  encodes a diff against these exact baselines.                             ║
+// ║                                                                            ║
+// ║  If a test fails: REVERT baseline.ts, do NOT update snapshots.             ║
+// ║  If you need a new schema: create BASELINE_V2 + new adapter prefix.        ║
+// ╚════════════════════════════════════════════════════════════════════════════╝
+
+exports[`baseline immutability snapshots LOGS_BASELINE must never change 1`] = `
+{
+  "builder": {
+    "queryData": [
+      {
+        "aggregateAttribute": {
+          "dataType": "",
+          "id": "----",
+          "key": "",
+          "type": "",
+        },
+        "aggregateOperator": null,
+        "aggregations": [
+          {
+            "expression": "count() ",
+          },
+        ],
+        "dataSource": "logs",
+        "disabled": false,
+        "expression": "A",
+        "filter": {
+          "expression": "",
+        },
+        "filters": {
+          "items": [],
+          "op": "AND",
+        },
+        "functions": [],
+        "groupBy": [],
+        "having": [],
+        "legend": "",
+        "limit": null,
+        "orderBy": [],
+        "queryName": "A",
+        "reduceTo": "avg",
+        "source": null,
+        "spaceAggregation": "sum",
+        "stepInterval": null,
+        "timeAggregation": "rate",
+      },
+    ],
+    "queryFormulas": [],
+    "queryTraceOperator": [],
+  },
+  "clickhouse_sql": [
+    {
+      "disabled": false,
+      "legend": "",
+      "name": "A",
+      "query": "",
+    },
+  ],
+  "id": "",
+  "promql": [
+    {
+      "disabled": false,
+      "legend": "",
+      "name": "A",
+      "query": "",
+    },
+  ],
+  "queryType": "builder",
+  "unit": "",
+}
+`;
+
+exports[`baseline immutability snapshots METRICS_BASELINE must never change 1`] = `
+{
+  "builder": {
+    "queryData": [
+      {
+        "aggregateAttribute": {
+          "dataType": "",
+          "id": "----",
+          "key": "",
+          "type": "",
+        },
+        "aggregateOperator": "noop",
+        "aggregations": [
+          {
+            "metricName": "",
+            "reduceTo": "avg",
+            "spaceAggregation": "sum",
+            "temporality": "",
+            "timeAggregation": "avg",
+          },
+        ],
+        "dataSource": "metrics",
+        "disabled": false,
+        "expression": "A",
+        "filter": {
+          "expression": "",
+        },
+        "filters": {
+          "items": [],
+          "op": "AND",
+        },
+        "functions": [],
+        "groupBy": [],
+        "having": [],
+        "legend": "",
+        "limit": null,
+        "orderBy": [],
+        "queryName": "A",
+        "reduceTo": "avg",
+        "source": null,
+        "spaceAggregation": "sum",
+        "stepInterval": null,
+        "timeAggregation": "rate",
+      },
+    ],
+    "queryFormulas": [],
+    "queryTraceOperator": [],
+  },
+  "clickhouse_sql": [
+    {
+      "disabled": false,
+      "legend": "",
+      "name": "A",
+      "query": "",
+    },
+  ],
+  "id": "",
+  "promql": [
+    {
+      "disabled": false,
+      "legend": "",
+      "name": "A",
+      "query": "",
+    },
+  ],
+  "queryType": "builder",
+  "unit": "",
+}
+`;
+
+exports[`baseline immutability snapshots TRACES_BASELINE must never change 1`] = `
+{
+  "builder": {
+    "queryData": [
+      {
+        "aggregateAttribute": {
+          "dataType": "",
+          "id": "----",
+          "key": "",
+          "type": "",
+        },
+        "aggregateOperator": null,
+        "aggregations": [
+          {
+            "expression": "count() ",
+          },
+        ],
+        "dataSource": "traces",
+        "disabled": false,
+        "expression": "A",
+        "filter": {
+          "expression": "",
+        },
+        "filters": {
+          "items": [],
+          "op": "AND",
+        },
+        "functions": [],
+        "groupBy": [],
+        "having": [],
+        "legend": "",
+        "limit": null,
+        "orderBy": [],
+        "queryName": "A",
+        "reduceTo": "avg",
+        "source": null,
+        "spaceAggregation": "sum",
+        "stepInterval": null,
+        "timeAggregation": "rate",
+      },
+    ],
+    "queryFormulas": [],
+    "queryTraceOperator": [],
+  },
+  "clickhouse_sql": [
+    {
+      "disabled": false,
+      "legend": "",
+      "name": "A",
+      "query": "",
+    },
+  ],
+  "id": "",
+  "promql": [
+    {
+      "disabled": false,
+      "legend": "",
+      "name": "A",
+      "query": "",
+    },
+  ],
+  "queryType": "builder",
+  "unit": "",
+}
+`;

frontend/src/lib/compositeQuery/__tests__/baseline.test.ts

@@ -0,0 +1,123 @@
+/**
+ * ╔════════════════════════════════════════════════════════════════════════════╗
+ * ║                           ⚠️  CRITICAL WARNING ⚠️                           ║
+ * ╠════════════════════════════════════════════════════════════════════════════╣
+ * ║  These baselines are FROZEN FOREVER. They must NEVER be modified.          ║
+ * ║                                                                            ║
+ * ║  WHY: Every URL ever emitted by the compositeQuery serializer encodes a    ║
+ * ║  diff against these exact baselines. Changing a single byte here silently  ║
+ * ║  BREAKS ALL EXISTING URLs — dashboards, saved views, shared links, etc.    ║
+ * ║                                                                            ║
+ * ║  If these snapshot tests fail:                                             ║
+ * ║    1. DO NOT update the snapshots                                          ║
+ * ║    2. REVERT your changes to baseline.ts immediately                       ║
+ * ║    3. If you need a new schema, create a NEW versioned baseline:           ║
+ * ║       - METRICS_BASELINE_V2, LOGS_BASELINE_V2, TRACES_BASELINE_V2          ║
+ * ║       - Create a new adapter (e.g., V2~) that uses the new baselines       ║
+ * ║       - Keep the old baselines untouched for backwards compatibility       ║
+ * ╚════════════════════════════════════════════════════════════════════════════╝
+ */
+
+import getBaselineByTag, {
+	LOGS_BASELINE,
+	METRICS_BASELINE,
+	pickBaseline,
+	TRACES_BASELINE,
+} from '../baseline';
+
+describe('baseline immutability snapshots', () => {
+	/**
+	 * ⛔ DO NOT UPDATE THIS SNAPSHOT ⛔
+	 * If this fails, you broke URL compatibility. Revert your changes.
+	 */
+	it('METRICS_BASELINE must never change', () => {
+		expect(METRICS_BASELINE).toMatchSnapshot();
+	});
+
+	/**
+	 * ⛔ DO NOT UPDATE THIS SNAPSHOT ⛔
+	 * If this fails, you broke URL compatibility. Revert your changes.
+	 */
+	it('LOGS_BASELINE must never change', () => {
+		expect(LOGS_BASELINE).toMatchSnapshot();
+	});
+
+	/**
+	 * ⛔ DO NOT UPDATE THIS SNAPSHOT ⛔
+	 * If this fails, you broke URL compatibility. Revert your changes.
+	 */
+	it('TRACES_BASELINE must never change', () => {
+		expect(TRACES_BASELINE).toMatchSnapshot();
+	});
+});
+
+describe('pickBaseline', () => {
+	it('returns metrics baseline for metrics dataSource', () => {
+		const query = {
+			builder: { queryData: [{ dataSource: 'metrics' }] },
+		} as any;
+
+		const result = pickBaseline(query);
+
+		expect(result.baseline).toBe(METRICS_BASELINE);
+		expect(result.tag).toBe('m');
+	});
+
+	it('returns logs baseline for logs dataSource', () => {
+		const query = {
+			builder: { queryData: [{ dataSource: 'logs' }] },
+		} as any;
+
+		const result = pickBaseline(query);
+
+		expect(result.baseline).toBe(LOGS_BASELINE);
+		expect(result.tag).toBe('l');
+	});
+
+	it('returns traces baseline for traces dataSource', () => {
+		const query = {
+			builder: { queryData: [{ dataSource: 'traces' }] },
+		} as any;
+
+		const result = pickBaseline(query);
+
+		expect(result.baseline).toBe(TRACES_BASELINE);
+		expect(result.tag).toBe('t');
+	});
+
+	it('defaults to metrics baseline for unknown dataSource', () => {
+		const query = {
+			builder: { queryData: [{ dataSource: 'unknown' }] },
+		} as any;
+
+		const result = pickBaseline(query);
+
+		expect(result.baseline).toBe(METRICS_BASELINE);
+		expect(result.tag).toBe('m');
+	});
+
+	it('defaults to metrics baseline when queryData is empty', () => {
+		const query = {
+			builder: { queryData: [] },
+		} as any;
+
+		const result = pickBaseline(query);
+
+		expect(result.baseline).toBe(METRICS_BASELINE);
+		expect(result.tag).toBe('m');
+	});
+});
+
+describe('getBaselineByTag', () => {
+	it('returns LOGS_BASELINE for tag "l"', () => {
+		expect(getBaselineByTag('l')).toBe(LOGS_BASELINE);
+	});
+
+	it('returns TRACES_BASELINE for tag "t"', () => {
+		expect(getBaselineByTag('t')).toBe(TRACES_BASELINE);
+	});
+
+	it('returns METRICS_BASELINE for tag "m"', () => {
+		expect(getBaselineByTag('m')).toBe(METRICS_BASELINE);
+	});
+});

frontend/src/lib/compositeQuery/__tests__/serializer.test.ts

@@ -0,0 +1,40 @@
+import { initialQueriesMap } from 'constants/queryBuilder';
+import { deserialize, serialize } from 'lib/compositeQuery/serializer';
+
+describe('composite query serializer', () => {
+	it('serialize picks shortest format', () => {
+		const query = initialQueriesMap.metrics;
+		const serialized = serialize(query);
+		const jsonSerialized = encodeURIComponent(JSON.stringify(query));
+		// Serializer should pick a format shorter than or equal to raw JSON
+		expect(serialized.length).toBeLessThanOrEqual(jsonSerialized.length);
+		// Should use a tagged format with baseline indicator (m/l/t)
+		const usesTaggedFormat =
+			/^V1[mlt]~/.test(serialized) ||
+			/^TV[mlt]~/.test(serialized) ||
+			/^FV[mlt]~/.test(serialized) ||
+			/^FK[mlt]~/.test(serialized);
+		expect(usesTaggedFormat).toBe(true);
+	});
+
+	it('round-trips through serialize/deserialize', () => {
+		const query = initialQueriesMap.logs;
+		const decoded = deserialize(serialize(query));
+		expect(decoded?.builder.queryData[0].dataSource).toBe('logs');
+	});
+
+	it('returns null on corrupt input instead of throwing', () => {
+		expect(deserialize('%7Bnot-json')).toBeNull();
+	});
+
+	it('returns null for empty/missing value', () => {
+		expect(deserialize('')).toBeNull();
+	});
+
+	it('preserves id field through roundtrip', () => {
+		const query = { ...initialQueriesMap.metrics, id: 'test-query-uuid-123' };
+		const serialized = serialize(query);
+		const decoded = deserialize(serialized);
+		expect(decoded?.id).toBe('test-query-uuid-123');
+	});
+});

frontend/src/lib/compositeQuery/adapters/flatKeys/codec.ts

@@ -0,0 +1,166 @@
+/**
+ * Flat-keys codec: a baseline-diff serializer that shortens keys but keeps
+ * values as raw JSON. Simpler than flat-leaf — no field-aware enum compression.
+ *
+ * Wire grammar (tokens joined by `*`):
+ *   set:    <shortPath>_<escapedJSON>   e.g.  b.qd.0.ds_"logs"
+ *   delete: -<shortPath>                e.g.  -b.qd.0.ag.0.mn
+ */
+import getBaselineByTag, {
+	BaselineTag,
+	pickBaseline,
+} from 'lib/compositeQuery/baseline';
+import { INVERSE_KEY_MAP, KEY_MAP } from './maps';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+type Json = unknown;
+type PathSeg = string | number;
+
+const PAIR = '*';
+const KV = '_';
+const DEL = '-';
+
+const isIndex = (seg: string): boolean => /^\d+$/.test(seg);
+
+const isContainer = (value: Json): value is Record<string, Json> | Json[] =>
+	typeof value === 'object' && value !== null;
+
+const isEmptyContainer = (value: Json): boolean =>
+	isContainer(value) &&
+	(Array.isArray(value) ? value.length === 0 : Object.keys(value).length === 0);
+
+const isLeaf = (value: Json): boolean =>
+	!isContainer(value) || isEmptyContainer(value);
+
+const shortenSeg = (seg: PathSeg): PathSeg =>
+	typeof seg === 'number' ? seg : (KEY_MAP[seg] ?? seg);
+
+function leafMap(obj: Json): Record<string, Json> {
+	const out: Record<string, Json> = {};
+	const walk = (node: Json, segs: PathSeg[]): void => {
+		if (isLeaf(node)) {
+			out[segs.map(shortenSeg).join('.')] = node;
+			return;
+		}
+		if (Array.isArray(node)) {
+			node.forEach((value, index) => walk(value, [...segs, index]));
+			return;
+		}
+		Object.entries(node as Record<string, Json>).forEach(([key, value]) =>
+			walk(value, [...segs, key]),
+		);
+	};
+	walk(obj, []);
+	return out;
+}
+
+function escapeValue(str: string): string {
+	let escaped = str.replace(/_/g, '__').replace(/\*/g, '_s');
+	if (escaped[0] === '!') {
+		escaped = `_i${escaped.slice(1)}`;
+	}
+	return escaped;
+}
+
+const UNESCAPE: Record<string, string> = { _: '_', s: '*', i: '!' };
+
+function unescapeValue(str: string): string {
+	let out = '';
+	for (let i = 0; i < str.length; i += 1) {
+		if (str[i] === '_') {
+			const next = str[i + 1];
+			out += UNESCAPE[next] ?? next;
+			i += 1;
+		} else {
+			out += str[i];
+		}
+	}
+	return out;
+}
+
+function encodeLeaf(value: Json): string {
+	if (value === undefined) {
+		return escapeValue('null');
+	}
+	return escapeValue(JSON.stringify(value));
+}
+
+function decodeLeaf(token: string): Json {
+	return JSON.parse(unescapeValue(token));
+}
+
+function parsePath(pathStr: string): PathSeg[] {
+	return pathStr
+		.split('.')
+		.map((seg) => (isIndex(seg) ? Number(seg) : (INVERSE_KEY_MAP[seg] ?? seg)));
+}
+
+function setPath(
+	root: Record<string, Json>,
+	segs: PathSeg[],
+	value: Json,
+): void {
+	let node: Json = root;
+	for (let i = 0; i < segs.length - 1; i += 1) {
+		const seg = segs[i];
+		const container = node as Record<string | number, Json>;
+		if (!isContainer(container[seg])) {
+			container[seg] = typeof segs[i + 1] === 'number' ? [] : {};
+		}
+		node = container[seg];
+	}
+	(node as Record<string | number, Json>)[segs[segs.length - 1]] = value;
+}
+
+function rebuildFromLeaves(map: Record<string, Json>): Record<string, Json> {
+	const root: Record<string, Json> = {};
+	Object.entries(map).forEach(([path, value]) => {
+		setPath(root, parsePath(path), value);
+	});
+	return root;
+}
+
+export function encode(query: Query): { payload: string; tag: BaselineTag } {
+	const { baseline, tag } = pickBaseline(query);
+	const base = leafMap(baseline);
+	const next = leafMap(query);
+	const tokens: string[] = [];
+	Object.entries(next).forEach(([path, value]) => {
+		const baseVal = base[path];
+		const normalizedBase = baseVal === undefined ? null : baseVal;
+		const normalizedNext = value === undefined ? null : value;
+		if (
+			path in base &&
+			JSON.stringify(normalizedBase) === JSON.stringify(normalizedNext)
+		) {
+			return;
+		}
+		tokens.push(`${path}${KV}${encodeLeaf(value)}`);
+	});
+	Object.keys(base).forEach((path) => {
+		if (!(path in next)) {
+			tokens.push(`${DEL}${path}`);
+		}
+	});
+	tokens.sort();
+	return { payload: tokens.join(PAIR), tag };
+}
+
+export function decode(payload: string, tag: BaselineTag): Query {
+	const map = leafMap(getBaselineByTag(tag));
+	if (payload) {
+		payload.split(PAIR).forEach((token) => {
+			if (!token) {
+				return;
+			}
+			if (token[0] === DEL) {
+				delete map[token.slice(1)];
+				return;
+			}
+			const sep = token.indexOf(KV);
+			const path = token.slice(0, sep);
+			map[path] = decodeLeaf(token.slice(sep + 1));
+		});
+	}
+	return rebuildFromLeaves(map) as unknown as Query;
+}

frontend/src/lib/compositeQuery/adapters/flatKeys/flatKeys.test.ts

@@ -0,0 +1,100 @@
+import { initialQueriesMap } from 'constants/queryBuilder';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+import { roundTripScenarios } from '../testing/scenarios';
+import { decodeFlatKeys, encodeFlatKeys, flatKeysAdapter } from './index';
+
+const roundTrip = (query: Query): Query =>
+	flatKeysAdapter.decode(flatKeysAdapter.encode(query));
+
+const clone = (query: Query): Query =>
+	JSON.parse(JSON.stringify(query)) as Query;
+
+describe('flatKeysAdapter', () => {
+	describe('round-trip scenarios', () => {
+		it.each(roundTripScenarios)('$name', ({ query }) => {
+			expect(roundTrip(query)).toStrictEqual(query);
+		});
+	});
+
+	describe('tag matching', () => {
+		it('tags output with FKm~/FKl~/FKt~', () => {
+			const metricsEncoded = flatKeysAdapter.encode(initialQueriesMap.metrics);
+			expect(metricsEncoded.startsWith('FKm~')).toBe(true);
+
+			const logsEncoded = flatKeysAdapter.encode(initialQueriesMap.logs);
+			expect(logsEncoded.startsWith('FKl~')).toBe(true);
+
+			const tracesEncoded = flatKeysAdapter.encode(initialQueriesMap.traces);
+			expect(tracesEncoded.startsWith('FKt~')).toBe(true);
+		});
+
+		it('matches only own tags', () => {
+			const encoded = flatKeysAdapter.encode(initialQueriesMap.metrics);
+			expect(flatKeysAdapter.matches(encoded)).toBe(true);
+			expect(flatKeysAdapter.matches('FVm~')).toBe(false);
+			expect(flatKeysAdapter.matches('%7Bnot-mine')).toBe(false);
+		});
+	});
+
+	describe('baseline behavior', () => {
+		it('uses correct baseline tag per dataSource', () => {
+			expect(encodeFlatKeys(initialQueriesMap.logs).tag).toBe('l');
+			expect(encodeFlatKeys(initialQueriesMap.traces).tag).toBe('t');
+			expect(encodeFlatKeys(initialQueriesMap.metrics).tag).toBe('m');
+		});
+
+		it('decodeFlatKeys on empty payload returns baseline', () => {
+			const decodedMetrics = decodeFlatKeys('', 'm');
+			expect(decodedMetrics.queryType).toBe('builder');
+			expect(decodedMetrics.builder.queryData[0].dataSource).toBe('metrics');
+
+			const decodedLogs = decodeFlatKeys('', 'l');
+			expect(decodedLogs.builder.queryData[0].dataSource).toBe('logs');
+		});
+	});
+
+	describe('encoding stability', () => {
+		it('identical encoding after roundtrip', () => {
+			const query = initialQueriesMap.metrics;
+			const encoded1 = flatKeysAdapter.encode(query);
+			const decoded = flatKeysAdapter.decode(encoded1);
+			const encoded2 = flatKeysAdapter.encode(decoded);
+
+			expect(encoded2).toBe(encoded1);
+		});
+
+		it('key order independent', () => {
+			const query1 = initialQueriesMap.metrics;
+			const query2 = JSON.parse(JSON.stringify(query1)) as Query;
+
+			const reordered = {
+				unit: query2.unit,
+				id: query2.id,
+				queryType: query2.queryType,
+				clickhouse_sql: query2.clickhouse_sql,
+				promql: query2.promql,
+				builder: query2.builder,
+			} as Query;
+
+			const encoded1 = flatKeysAdapter.encode(query1);
+			const encoded2 = flatKeysAdapter.encode(reordered);
+
+			expect(encoded2).toBe(encoded1);
+		});
+	});
+
+	describe('undefined handling', () => {
+		it('handles undefined values without breaking decode', () => {
+			const query = clone(initialQueriesMap.logs);
+			// eslint-disable-next-line @typescript-eslint/no-explicit-any
+			(query.builder.queryData[0] as any).aggregateOperator = undefined;
+			// eslint-disable-next-line @typescript-eslint/no-explicit-any
+			(query.builder.queryData[0] as any).source = undefined;
+
+			const encoded = flatKeysAdapter.encode(query);
+			const decoded = flatKeysAdapter.decode(encoded);
+			expect(decoded).not.toBeNull();
+		});
+	});
+});

frontend/src/lib/compositeQuery/adapters/flatKeys/index.ts

@@ -0,0 +1,32 @@
+import { BaselineTag } from 'lib/compositeQuery/baseline';
+import { decode, encode } from './codec';
+import { CompositeQueryAdapter } from './types';
+
+const TAG_PREFIX = 'FK';
+const TAG_SUFFIX = '~';
+
+/**
+ * Flat-keys (FK~): stores a query as a keys-only, leaf-flattened diff from the
+ * frozen baseline. Uses short keys but keeps values as raw JSON (no field-aware
+ * enum compression).
+ *
+ * Useful for benchmarking: isolates contribution of key shortening from value compression.
+ */
+export const flatKeysAdapter: CompositeQueryAdapter = {
+	name: 'flat-keys',
+	encode: (query) => {
+		const { payload, tag } = encode(query);
+		return `${TAG_PREFIX}${tag}${TAG_SUFFIX}${payload}`;
+	},
+	matches: (raw) =>
+		raw.startsWith(`${TAG_PREFIX}m${TAG_SUFFIX}`) ||
+		raw.startsWith(`${TAG_PREFIX}l${TAG_SUFFIX}`) ||
+		raw.startsWith(`${TAG_PREFIX}t${TAG_SUFFIX}`),
+	decode: (raw) => {
+		const tag = raw[2] as BaselineTag;
+		const payload = raw.slice(4);
+		return decode(payload, tag);
+	},
+};
+
+export { encode as encodeFlatKeys, decode as decodeFlatKeys } from './codec';

frontend/src/lib/compositeQuery/adapters/flatKeys/maps.ts

@@ -0,0 +1,51 @@
+/**
+ * Key shortening map for flatKeys adapter.
+ * No value compression - only key shortening.
+ */
+export const KEY_MAP: Record<string, string> = {
+	queryType: 'qt',
+	builder: 'b',
+	queryData: 'qd',
+	queryFormulas: 'qf',
+	queryTraceOperator: 'qo',
+	dataSource: 'ds',
+	queryName: 'qn',
+	aggregateOperator: 'ao',
+	aggregateAttribute: 'aa',
+	timeAggregation: 'ta',
+	spaceAggregation: 'sa',
+	filter: 'f',
+	expression: 'e',
+	aggregations: 'ag',
+	functions: 'fn',
+	filters: 'fl',
+	items: 'i',
+	disabled: 'd',
+	stepInterval: 'si',
+	having: 'h',
+	limit: 'l',
+	orderBy: 'ob',
+	groupBy: 'gb',
+	legend: 'lg',
+	reduceTo: 'rt',
+	source: 's',
+	promql: 'pq',
+	clickhouse_sql: 'cs',
+	name: 'n',
+	query: 'q',
+	key: 'k',
+	dataType: 'dt',
+	type: 't',
+	metricName: 'mn',
+	temporality: 'tp',
+	columnName: 'cn',
+	order: 'o',
+	value: 'v',
+	op: 'op',
+	isColumn: 'ic',
+	isJSON: 'ij',
+};
+
+export const INVERSE_KEY_MAP: Record<string, string> = Object.fromEntries(
+	Object.entries(KEY_MAP).map(([long, short]) => [short, long]),
+);

frontend/src/lib/compositeQuery/adapters/flatKeys/types.ts

@@ -0,0 +1,8 @@
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+export interface CompositeQueryAdapter {
+	readonly name: string;
+	encode(query: Query): string;
+	matches(raw: string): boolean;
+	decode(raw: string): Query;
+}

frontend/src/lib/compositeQuery/adapters/flatLeaf/codec.ts

@@ -0,0 +1,197 @@
+/**
+ * Flat-leaf codec: a baseline-diff serializer that emits one token per changed
+ * scalar leaf, with no JSON wrapper characters on the wire.
+ *
+ * Both the baseline and the query are flattened to maps of
+ * `{ shortDotPath: scalarLeaf }` (arrays walked element-wise, so `queryData[0]`
+ * becomes `qd.0`). Encode diffs the two maps and emits a token per changed or
+ * removed leaf; decode replays those tokens onto the baseline map and rebuilds
+ * the nested object. Because arrays are walked element-wise, adding one filter
+ * costs a few scalar tokens instead of a whole-array JSON blob.
+ *
+ * Wire grammar (tokens joined by `*`):
+ *   set:    <shortPath>_<encodedLeaf>   e.g.  b.qd.0.ds_0
+ *   delete: -<shortPath>                e.g.  -b.qd.0.ag.0.mn
+ */
+import getBaselineByTag, {
+	BaselineTag,
+	pickBaseline,
+} from 'lib/compositeQuery/baseline';
+import {
+	FIELD_DOMAINS,
+	INVERSE_FIELD_DOMAINS,
+	INVERSE_KEY_MAP,
+	KEY_MAP,
+} from './maps';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+type Json = unknown;
+type PathSeg = string | number;
+
+const PAIR = '*';
+const KV = '_';
+const DEL = '-';
+
+const isIndex = (seg: string): boolean => /^\d+$/.test(seg);
+
+const isContainer = (value: Json): value is Record<string, Json> | Json[] =>
+	typeof value === 'object' && value !== null;
+
+const isEmptyContainer = (value: Json): boolean =>
+	isContainer(value) &&
+	(Array.isArray(value) ? value.length === 0 : Object.keys(value).length === 0);
+
+const isLeaf = (value: Json): boolean =>
+	!isContainer(value) || isEmptyContainer(value);
+
+const shortenSeg = (seg: PathSeg): PathSeg =>
+	typeof seg === 'number' ? seg : (KEY_MAP[seg] ?? seg);
+
+const lastSeg = (path: string): string => path.slice(path.lastIndexOf('.') + 1);
+
+function leafMap(obj: Json): Record<string, Json> {
+	const out: Record<string, Json> = {};
+	const walk = (node: Json, segs: PathSeg[]): void => {
+		if (isLeaf(node)) {
+			out[segs.map(shortenSeg).join('.')] = node;
+			return;
+		}
+		if (Array.isArray(node)) {
+			node.forEach((value, index) => walk(value, [...segs, index]));
+			return;
+		}
+		Object.entries(node as Record<string, Json>).forEach(([key, value]) =>
+			walk(value, [...segs, key]),
+		);
+	};
+	walk(obj, []);
+	return out;
+}
+
+function escapeValue(str: string): string {
+	let escaped = str.replace(/_/g, '__').replace(/\*/g, '_s');
+	if (escaped[0] === '!') {
+		escaped = `_i${escaped.slice(1)}`;
+	}
+	return escaped;
+}
+
+const UNESCAPE: Record<string, string> = { _: '_', s: '*', i: '!' };
+
+function unescapeValue(str: string): string {
+	let out = '';
+	for (let i = 0; i < str.length; i += 1) {
+		if (str[i] === '_') {
+			const next = str[i + 1];
+			out += UNESCAPE[next] ?? next;
+			i += 1;
+		} else {
+			out += str[i];
+		}
+	}
+	return out;
+}
+
+function encodeLeaf(value: Json, shortKey: string): string {
+	if (typeof value === 'string') {
+		const domain = FIELD_DOMAINS[shortKey];
+		if (domain?.[value] !== undefined) {
+			return String(domain[value]);
+		}
+		return escapeValue(value);
+	}
+	if (value === undefined) {
+		return '!null';
+	}
+	return `!${JSON.stringify(value)}`;
+}
+
+function decodeLeaf(token: string, shortKey: string): Json {
+	if (token[0] === '!') {
+		return JSON.parse(token.slice(1));
+	}
+	const inverse = INVERSE_FIELD_DOMAINS[shortKey];
+	if (inverse && isIndex(token)) {
+		const mapped = inverse[Number(token)];
+		if (mapped !== undefined) {
+			return mapped;
+		}
+	}
+	return unescapeValue(token);
+}
+
+function parsePath(pathStr: string): PathSeg[] {
+	return pathStr
+		.split('.')
+		.map((seg) => (isIndex(seg) ? Number(seg) : (INVERSE_KEY_MAP[seg] ?? seg)));
+}
+
+function setPath(
+	root: Record<string, Json>,
+	segs: PathSeg[],
+	value: Json,
+): void {
+	let node: Json = root;
+	for (let i = 0; i < segs.length - 1; i += 1) {
+		const seg = segs[i];
+		const container = node as Record<string | number, Json>;
+		if (!isContainer(container[seg])) {
+			container[seg] = typeof segs[i + 1] === 'number' ? [] : {};
+		}
+		node = container[seg];
+	}
+	(node as Record<string | number, Json>)[segs[segs.length - 1]] = value;
+}
+
+function rebuildFromLeaves(map: Record<string, Json>): Record<string, Json> {
+	const root: Record<string, Json> = {};
+	Object.entries(map).forEach(([path, value]) => {
+		setPath(root, parsePath(path), value);
+	});
+	return root;
+}
+
+export function encode(query: Query): { payload: string; tag: BaselineTag } {
+	const { baseline, tag } = pickBaseline(query);
+	const base = leafMap(baseline);
+	const next = leafMap(query);
+	const tokens: string[] = [];
+	Object.entries(next).forEach(([path, value]) => {
+		const baseVal = base[path];
+		const normalizedBase = baseVal === undefined ? null : baseVal;
+		const normalizedNext = value === undefined ? null : value;
+		if (
+			path in base &&
+			JSON.stringify(normalizedBase) === JSON.stringify(normalizedNext)
+		) {
+			return;
+		}
+		tokens.push(`${path}${KV}${encodeLeaf(value, lastSeg(path))}`);
+	});
+	Object.keys(base).forEach((path) => {
+		if (!(path in next)) {
+			tokens.push(`${DEL}${path}`);
+		}
+	});
+	tokens.sort();
+	return { payload: tokens.join(PAIR), tag };
+}
+
+export function decode(payload: string, tag: BaselineTag): Query {
+	const map = leafMap(getBaselineByTag(tag));
+	if (payload) {
+		payload.split(PAIR).forEach((token) => {
+			if (!token) {
+				return;
+			}
+			if (token[0] === DEL) {
+				delete map[token.slice(1)];
+				return;
+			}
+			const sep = token.indexOf(KV);
+			const path = token.slice(0, sep);
+			map[path] = decodeLeaf(token.slice(sep + 1), lastSeg(path));
+		});
+	}
+	return rebuildFromLeaves(map) as unknown as Query;
+}

frontend/src/lib/compositeQuery/adapters/flatLeaf/flatLeaf.test.ts

@@ -0,0 +1,151 @@
+import { isEqual } from 'lodash-es';
+
+import { initialQueriesMap } from 'constants/queryBuilder';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+import { roundTripScenarios } from '../testing/scenarios';
+import { decodeFlatLeaf, encodeFlatLeaf, flatLeafAdapter } from './index';
+
+const roundTrip = (query: Query): Query =>
+	flatLeafAdapter.decode(flatLeafAdapter.encode(query));
+
+const clone = (query: Query): Query =>
+	JSON.parse(JSON.stringify(query)) as Query;
+
+describe('flatLeafAdapter', () => {
+	describe('round-trip scenarios', () => {
+		it.each(roundTripScenarios)('$name', ({ query }) => {
+			expect(roundTrip(query)).toStrictEqual(query);
+		});
+	});
+
+	describe('tag matching', () => {
+		it('tags output with FVm~/FVl~/FVt~', () => {
+			const metricsEncoded = flatLeafAdapter.encode(initialQueriesMap.metrics);
+			expect(metricsEncoded.startsWith('FVm~')).toBe(true);
+
+			const logsEncoded = flatLeafAdapter.encode(initialQueriesMap.logs);
+			expect(logsEncoded.startsWith('FVl~')).toBe(true);
+
+			const tracesEncoded = flatLeafAdapter.encode(initialQueriesMap.traces);
+			expect(tracesEncoded.startsWith('FVt~')).toBe(true);
+		});
+
+		it('matches only own tags', () => {
+			const encoded = flatLeafAdapter.encode(initialQueriesMap.metrics);
+			expect(flatLeafAdapter.matches(encoded)).toBe(true);
+			expect(flatLeafAdapter.matches('V1m~[]')).toBe(false);
+			expect(flatLeafAdapter.matches('%7Bnot-mine')).toBe(false);
+		});
+	});
+
+	describe('baseline behavior', () => {
+		it('uses correct baseline tag per dataSource', () => {
+			expect(encodeFlatLeaf(initialQueriesMap.logs).tag).toBe('l');
+			expect(encodeFlatLeaf(initialQueriesMap.traces).tag).toBe('t');
+			expect(encodeFlatLeaf(initialQueriesMap.metrics).tag).toBe('m');
+		});
+
+		it('emits no payload when query equals baseline shape', () => {
+			const { payload, tag } = encodeFlatLeaf(initialQueriesMap.logs);
+			expect(tag).toBe('l');
+			expect(decodeFlatLeaf(payload, tag)).toStrictEqual(initialQueriesMap.logs);
+		});
+
+		it('decodeFlatLeaf on empty payload returns baseline', () => {
+			const decodedMetrics = decodeFlatLeaf('', 'm');
+			expect(decodedMetrics.queryType).toBe('builder');
+			expect(decodedMetrics.builder.queryData[0].dataSource).toBe('metrics');
+
+			const decodedLogs = decodeFlatLeaf('', 'l');
+			expect(decodedLogs.builder.queryData[0].dataSource).toBe('logs');
+		});
+	});
+
+	describe('encoding stability', () => {
+		it('identical encoding after roundtrip', () => {
+			const query = initialQueriesMap.metrics;
+			const encoded1 = flatLeafAdapter.encode(query);
+			const decoded = flatLeafAdapter.decode(encoded1);
+			const encoded2 = flatLeafAdapter.encode(decoded);
+
+			expect(encoded2).toBe(encoded1);
+		});
+
+		it('key order independent', () => {
+			const query1 = initialQueriesMap.metrics;
+			const query2 = JSON.parse(JSON.stringify(query1)) as Query;
+
+			const reordered = {
+				unit: query2.unit,
+				id: query2.id,
+				queryType: query2.queryType,
+				clickhouse_sql: query2.clickhouse_sql,
+				promql: query2.promql,
+				builder: query2.builder,
+			} as Query;
+
+			const encoded1 = flatLeafAdapter.encode(query1);
+			const encoded2 = flatLeafAdapter.encode(reordered);
+
+			expect(encoded2).toBe(encoded1);
+		});
+
+		it('stable after spread/reconstruct', () => {
+			const query = { ...initialQueriesMap.metrics };
+			const encoded1 = flatLeafAdapter.encode(query);
+
+			const transformed = {
+				...query,
+				builder: {
+					...query.builder,
+					queryData: query.builder.queryData.map((item) => ({
+						...item,
+					})),
+				},
+			};
+			const encoded2 = flatLeafAdapter.encode(transformed);
+
+			expect(encoded2).toBe(encoded1);
+		});
+	});
+
+	describe('key validation', () => {
+		it('decoded query has all keys expected by replaceIncorrectObjectFields', () => {
+			const decoded = flatLeafAdapter.decode(
+				flatLeafAdapter.encode(initialQueriesMap.metrics),
+			);
+			const decodedKeys = Object.keys(decoded).sort();
+			const expectedKeys = Object.keys(initialQueriesMap.metrics).sort();
+
+			expect(decodedKeys).toStrictEqual(expectedKeys);
+		});
+	});
+
+	describe('isEqual compatibility', () => {
+		it('lodash isEqual works for decoded queries', () => {
+			const query = initialQueriesMap.metrics;
+			const encoded = flatLeafAdapter.encode(query);
+			const decoded = flatLeafAdapter.decode(encoded);
+
+			const { id: _id1, ...rest1 } = query;
+			const { id: _id2, ...rest2 } = decoded;
+
+			expect(isEqual(rest1, rest2)).toBe(true);
+		});
+	});
+
+	describe('undefined handling', () => {
+		it('handles undefined values without breaking decode', () => {
+			const query = clone(initialQueriesMap.logs);
+			// eslint-disable-next-line @typescript-eslint/no-explicit-any
+			(query.builder.queryData[0] as any).aggregateOperator = undefined;
+			// eslint-disable-next-line @typescript-eslint/no-explicit-any
+			(query.builder.queryData[0] as any).source = undefined;
+
+			const encoded = flatLeafAdapter.encode(query);
+			const decoded = flatLeafAdapter.decode(encoded);
+			expect(decoded).not.toBeNull();
+		});
+	});
+});

frontend/src/lib/compositeQuery/adapters/flatLeaf/index.ts

@@ -0,0 +1,30 @@
+import { BaselineTag } from 'lib/compositeQuery/baseline';
+import { decode, encode } from './codec';
+import { CompositeQueryAdapter } from './types';
+
+const TAG_PREFIX = 'FV';
+const TAG_SUFFIX = '~';
+
+/**
+ * Flat-leaf (FV~): stores a query as a field-aware, leaf-flattened diff from the
+ * frozen baseline. Uses the smart hybrid strategy — metrics or logs baseline
+ * picked by dataSource — so the tag is FVm~ (metrics) or FVl~ (logs).
+ */
+export const flatLeafAdapter: CompositeQueryAdapter = {
+	name: 'flat-leaf',
+	encode: (query) => {
+		const { payload, tag } = encode(query);
+		return `${TAG_PREFIX}${tag}${TAG_SUFFIX}${payload}`;
+	},
+	matches: (raw) =>
+		raw.startsWith(`${TAG_PREFIX}m${TAG_SUFFIX}`) ||
+		raw.startsWith(`${TAG_PREFIX}l${TAG_SUFFIX}`) ||
+		raw.startsWith(`${TAG_PREFIX}t${TAG_SUFFIX}`),
+	decode: (raw) => {
+		const tag = raw[2] as BaselineTag;
+		const payload = raw.slice(4);
+		return decode(payload, tag);
+	},
+};
+
+export { encode as encodeFlatLeaf, decode as decodeFlatLeaf } from './codec';

frontend/src/lib/compositeQuery/adapters/flatLeaf/maps.ts

@@ -0,0 +1,197 @@
+import {
+	MetrictypesSpaceAggregationDTO,
+	MetrictypesTemporalityDTO,
+	MetrictypesTimeAggregationDTO,
+} from 'api/generated/services/sigNoz.schemas';
+import {
+	AutocompleteType,
+	DataTypes,
+} from 'types/api/queryBuilder/queryAutocompleteResponse';
+import { EQueryType } from 'types/common/dashboard';
+import {
+	DataSource,
+	LogsAggregatorOperator,
+	MetricAggregateOperator,
+	ReduceOperators,
+	TracesAggregatorOperator,
+} from 'types/common/queryBuilder';
+
+export const KEY_MAP: Record<string, string> = {
+	queryType: 'qt',
+	builder: 'b',
+	queryData: 'qd',
+	queryFormulas: 'qf',
+	queryTraceOperator: 'qo',
+	dataSource: 'ds',
+	queryName: 'qn',
+	aggregateOperator: 'ao',
+	aggregateAttribute: 'aa',
+	timeAggregation: 'ta',
+	spaceAggregation: 'sa',
+	filter: 'f',
+	expression: 'e',
+	aggregations: 'ag',
+	functions: 'fn',
+	filters: 'fl',
+	items: 'i',
+	disabled: 'd',
+	stepInterval: 'si',
+	having: 'h',
+	limit: 'l',
+	orderBy: 'ob',
+	groupBy: 'gb',
+	legend: 'lg',
+	reduceTo: 'rt',
+	source: 's',
+	promql: 'pq',
+	clickhouse_sql: 'cs',
+	name: 'n',
+	query: 'q',
+	key: 'k',
+	dataType: 'dt',
+	type: 't',
+	metricName: 'mn',
+	temporality: 'tp',
+	columnName: 'cn',
+	order: 'o',
+	value: 'v',
+	op: 'op',
+	isColumn: 'ic',
+	isJSON: 'ij',
+};
+
+export const INVERSE_KEY_MAP: Record<string, string> = Object.fromEntries(
+	Object.entries(KEY_MAP).map(([long, short]) => [short, long]),
+);
+
+const DATA_SOURCE: Record<DataSource, number> = {
+	[DataSource.LOGS]: 0,
+	[DataSource.METRICS]: 1,
+	[DataSource.TRACES]: 2,
+};
+
+const QUERY_TYPE: Record<EQueryType, number> = {
+	[EQueryType.QUERY_BUILDER]: 0,
+	[EQueryType.PROM]: 1,
+	[EQueryType.CLICKHOUSE]: 2,
+};
+
+const REDUCE_TO: Record<ReduceOperators, number> = {
+	[ReduceOperators.LAST]: 0,
+	[ReduceOperators.SUM]: 1,
+	[ReduceOperators.AVG]: 2,
+	[ReduceOperators.MAX]: 3,
+	[ReduceOperators.MIN]: 4,
+};
+
+const TEMPORALITY: Record<MetrictypesTemporalityDTO, number> = {
+	[MetrictypesTemporalityDTO.delta]: 0,
+	[MetrictypesTemporalityDTO.cumulative]: 1,
+	[MetrictypesTemporalityDTO.unspecified]: 2,
+};
+
+const TIME_AGGREGATION: Record<MetrictypesTimeAggregationDTO, number> = {
+	[MetrictypesTimeAggregationDTO.latest]: 0,
+	[MetrictypesTimeAggregationDTO.sum]: 1,
+	[MetrictypesTimeAggregationDTO.avg]: 2,
+	[MetrictypesTimeAggregationDTO.min]: 3,
+	[MetrictypesTimeAggregationDTO.max]: 4,
+	[MetrictypesTimeAggregationDTO.count]: 5,
+	[MetrictypesTimeAggregationDTO.count_distinct]: 6,
+	[MetrictypesTimeAggregationDTO.rate]: 7,
+	[MetrictypesTimeAggregationDTO.increase]: 8,
+};
+
+const SPACE_AGGREGATION: Record<MetrictypesSpaceAggregationDTO, number> = {
+	[MetrictypesSpaceAggregationDTO.sum]: 0,
+	[MetrictypesSpaceAggregationDTO.avg]: 1,
+	[MetrictypesSpaceAggregationDTO.min]: 2,
+	[MetrictypesSpaceAggregationDTO.max]: 3,
+	[MetrictypesSpaceAggregationDTO.count]: 4,
+	[MetrictypesSpaceAggregationDTO.p50]: 5,
+	[MetrictypesSpaceAggregationDTO.p75]: 6,
+	[MetrictypesSpaceAggregationDTO.p90]: 7,
+	[MetrictypesSpaceAggregationDTO.p95]: 8,
+	[MetrictypesSpaceAggregationDTO.p99]: 9,
+};
+
+const AGGREGATE_OPERATOR: Record<
+	MetricAggregateOperator | TracesAggregatorOperator | LogsAggregatorOperator,
+	number
+> = {
+	[MetricAggregateOperator.EMPTY]: 0,
+	[MetricAggregateOperator.NOOP]: 1,
+	[MetricAggregateOperator.COUNT]: 2,
+	[MetricAggregateOperator.COUNT_DISTINCT]: 3,
+	[MetricAggregateOperator.SUM]: 4,
+	[MetricAggregateOperator.AVG]: 5,
+	[MetricAggregateOperator.MAX]: 6,
+	[MetricAggregateOperator.MIN]: 7,
+	[MetricAggregateOperator.P05]: 8,
+	[MetricAggregateOperator.P10]: 9,
+	[MetricAggregateOperator.P20]: 10,
+	[MetricAggregateOperator.P25]: 11,
+	[MetricAggregateOperator.P50]: 12,
+	[MetricAggregateOperator.P75]: 13,
+	[MetricAggregateOperator.P90]: 14,
+	[MetricAggregateOperator.P95]: 15,
+	[MetricAggregateOperator.P99]: 16,
+	[MetricAggregateOperator.RATE]: 17,
+	[MetricAggregateOperator.SUM_RATE]: 18,
+	[MetricAggregateOperator.AVG_RATE]: 19,
+	[MetricAggregateOperator.MAX_RATE]: 20,
+	[MetricAggregateOperator.MIN_RATE]: 21,
+	[MetricAggregateOperator.RATE_SUM]: 22,
+	[MetricAggregateOperator.RATE_AVG]: 23,
+	[MetricAggregateOperator.RATE_MIN]: 24,
+	[MetricAggregateOperator.RATE_MAX]: 25,
+	[MetricAggregateOperator.HIST_QUANTILE_50]: 26,
+	[MetricAggregateOperator.HIST_QUANTILE_75]: 27,
+	[MetricAggregateOperator.HIST_QUANTILE_90]: 28,
+	[MetricAggregateOperator.HIST_QUANTILE_95]: 29,
+	[MetricAggregateOperator.HIST_QUANTILE_99]: 30,
+	[MetricAggregateOperator.INCREASE]: 31,
+	[MetricAggregateOperator.LATEST]: 32,
+};
+
+const DATA_TYPE: Record<DataTypes, number> = {
+	[DataTypes.Int64]: 0,
+	[DataTypes.String]: 1,
+	[DataTypes.Float64]: 2,
+	[DataTypes.bool]: 3,
+	[DataTypes.ArrayFloat64]: 4,
+	[DataTypes.ArrayInt64]: 5,
+	[DataTypes.ArrayString]: 6,
+	[DataTypes.ArrayBool]: 7,
+	[DataTypes.EMPTY]: 8,
+};
+
+const ATTR_TYPE: Record<AutocompleteType, number> = {
+	tag: 0,
+	resource: 1,
+	'': 2,
+};
+
+export const FIELD_DOMAINS: Record<string, Record<string, number>> = {
+	ds: DATA_SOURCE,
+	qt: QUERY_TYPE,
+	rt: REDUCE_TO,
+	tp: TEMPORALITY,
+	ta: TIME_AGGREGATION,
+	sa: SPACE_AGGREGATION,
+	ao: AGGREGATE_OPERATOR,
+	dt: DATA_TYPE,
+	t: ATTR_TYPE,
+};
+
+export const INVERSE_FIELD_DOMAINS: Record<
+	string,
+	Record<number, string>
+> = Object.fromEntries(
+	Object.entries(FIELD_DOMAINS).map(([field, domain]) => [
+		field,
+		Object.fromEntries(
+			Object.entries(domain).map(([str, int]) => [int, str]),
+		) as Record<number, string>,
+	]),
+);

frontend/src/lib/compositeQuery/adapters/flatLeaf/types.ts

@@ -0,0 +1,8 @@
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+export interface CompositeQueryAdapter {
+	readonly name: string;
+	encode(query: Query): string;
+	matches(raw: string): boolean;
+	decode(raw: string): Query;
+}

frontend/src/lib/compositeQuery/adapters/json/index.ts

@@ -0,0 +1,55 @@
+import {
+	convertAggregationToExpression,
+	convertFiltersToExpressionWithExistingQuery,
+	convertHavingToExpression,
+} from 'components/QueryBuilderV2/utils';
+import { BaseAutocompleteData } from 'types/api/queryBuilder/queryAutocompleteResponse';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+import { CompositeQueryAdapter } from './types';
+
+function migrateLegacyFormat(parsed: Query): Query {
+	if (!parsed?.builder?.queryData) {
+		return parsed;
+	}
+	const next = parsed;
+	next.builder.queryData = parsed.builder.queryData.map((query) => {
+		const existingExpression = query.filter?.expression || '';
+		const convertedQuery = { ...query };
+
+		const convertedFilter = convertFiltersToExpressionWithExistingQuery(
+			query.filters || { items: [], op: 'AND' },
+			existingExpression,
+		);
+		convertedQuery.filter = convertedFilter.filter;
+		convertedQuery.filters = convertedFilter.filters;
+
+		if (Array.isArray(query.having)) {
+			convertedQuery.having = convertHavingToExpression(query.having);
+		}
+
+		if (!query.aggregations && query.aggregateOperator) {
+			convertedQuery.aggregations = convertAggregationToExpression({
+				aggregateOperator: query.aggregateOperator,
+				aggregateAttribute: query.aggregateAttribute as BaseAutocompleteData,
+				dataSource: query.dataSource,
+				timeAggregation: query.timeAggregation,
+				spaceAggregation: query.spaceAggregation,
+				reduceTo: query.reduceTo,
+				temporality: query.temporality,
+				// eslint-disable-next-line @typescript-eslint/no-explicit-any
+			}) as any;
+		}
+		return convertedQuery;
+	});
+	return next;
+}
+
+export const jsonAdapter: CompositeQueryAdapter = {
+	name: 'json(legacy)',
+	encode: (query) => encodeURIComponent(JSON.stringify(query)),
+	matches: () => true,
+	decode: (raw) => {
+		const parsed: Query = JSON.parse(decodeURIComponent(raw.replace(/\+/g, ' ')));
+		return migrateLegacyFormat(parsed);
+	},
+};

frontend/src/lib/compositeQuery/adapters/json/json.test.ts

@@ -0,0 +1,68 @@
+import { initialQueriesMap } from 'constants/queryBuilder';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+import { jsonAdapter } from './index';
+
+const roundTrip = (query: Query): Query =>
+	jsonAdapter.decode(jsonAdapter.encode(query));
+
+describe('jsonAdapter', () => {
+	describe('round-trip', () => {
+		it.each(['metrics', 'logs', 'traces'] as const)(
+			'round-trips %s baseline preserving dataSource',
+			(source) => {
+				const query = initialQueriesMap[source];
+				const decoded = roundTrip(query);
+				expect(decoded.builder.queryData[0].dataSource).toBe(source);
+			},
+		);
+	});
+
+	describe('legacy format compatibility', () => {
+		it('encodes to legacy format (encodeURIComponent + JSON)', () => {
+			const query = initialQueriesMap.logs;
+			const encoded = jsonAdapter.encode(query);
+
+			expect(encoded).toBe(encodeURIComponent(JSON.stringify(query)));
+			expect(encoded.startsWith('%7B')).toBe(true);
+		});
+	});
+
+	describe('tag matching', () => {
+		it('matches any value (catch-all fallback)', () => {
+			expect(jsonAdapter.matches('%7B%22queryType%22%3A%22builder%22%7D')).toBe(
+				true,
+			);
+			expect(jsonAdapter.matches('z1~abc')).toBe(true);
+		});
+	});
+
+	describe('migration', () => {
+		it('migrates old format (filters -> filter.expression)', () => {
+			const legacy = {
+				queryType: 'builder',
+				builder: {
+					queryData: [
+						{
+							dataSource: 'logs',
+							queryName: 'A',
+							filters: { op: 'AND', items: [] },
+							aggregateOperator: 'count',
+							aggregateAttribute: { key: '', dataType: '', type: '' },
+						},
+					],
+					queryFormulas: [],
+					queryTraceOperator: [],
+				},
+				promql: [],
+				clickhouse_sql: [],
+				id: 'x',
+				unit: '',
+			};
+			const raw = encodeURIComponent(JSON.stringify(legacy));
+			const decoded = jsonAdapter.decode(raw);
+			expect(decoded.builder.queryData[0].filter).toBeDefined();
+			expect(decoded.builder.queryData[0].aggregations).toBeDefined();
+		});
+	});
+});

frontend/src/lib/compositeQuery/adapters/json/types.ts

@@ -0,0 +1,8 @@
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+export interface CompositeQueryAdapter {
+	readonly name: string;
+	encode(query: Query): string;
+	matches(raw: string): boolean;
+	decode(raw: string): Query;
+}

frontend/src/lib/compositeQuery/adapters/testing/scenarios.ts

@@ -0,0 +1,85 @@
+import { initialQueriesMap } from 'constants/queryBuilder';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+import { EQueryType } from 'types/common/dashboard';
+
+export interface RoundTripScenario {
+	name: string;
+	query: Query;
+}
+
+const clone = <T>(obj: T): T => JSON.parse(JSON.stringify(obj)) as T;
+
+const makePromqlQuery = (): Query => {
+	const query = clone(initialQueriesMap.metrics);
+	query.queryType = EQueryType.PROM;
+	query.promql[0].query = 'rate(http_requests_total[5m])';
+	return query;
+};
+
+const makeClickhouseQuery = (): Query => {
+	const query = clone(initialQueriesMap.metrics);
+	query.queryType = EQueryType.CLICKHOUSE;
+	query.clickhouse_sql[0].query = 'SELECT count() FROM signoz_logs';
+	return query;
+};
+
+const makeModifiedBuilderQuery = (): Query => {
+	const query = clone(initialQueriesMap.logs);
+	const qd = query.builder.queryData[0];
+	qd.aggregateOperator = 'p95';
+	qd.disabled = true;
+	qd.stepInterval = 60;
+	qd.legend = 'error rate';
+	qd.filter = { expression: "severity_text = 'ERROR'" };
+	qd.filters = {
+		op: 'AND',
+		items: [
+			{
+				key: {
+					key: 'severity_text',
+					dataType: 'string',
+					type: 'tag',
+					isColumn: false,
+					isJSON: false,
+					// eslint-disable-next-line @typescript-eslint/no-explicit-any
+				} as any,
+				id: 'item-1',
+				op: '=',
+				value: 'ERROR',
+			},
+		],
+	};
+	qd.orderBy = [{ columnName: 'timestamp', order: 'desc' }];
+	return query;
+};
+
+const makeQueryWithCustomId = (): Query => ({
+	...initialQueriesMap.metrics,
+	id: 'test-query-uuid-123',
+});
+
+const makeQueryWithEnumLikeLegend = (): Query => {
+	const query = clone(initialQueriesMap.metrics);
+	query.builder.queryData[0].legend = 'sum';
+	query.id = 'my-query-id';
+	return query;
+};
+
+const makeQueryWithWireDelimiters = (): Query => {
+	const query = clone(initialQueriesMap.logs);
+	query.builder.queryData[0].legend = '_a*b_*c';
+	query.builder.queryData[0].filter = { expression: '!weird = "x_y*z"' };
+	return query;
+};
+
+export const roundTripScenarios: RoundTripScenario[] = [
+	{ name: 'metrics baseline', query: initialQueriesMap.metrics },
+	{ name: 'logs baseline', query: initialQueriesMap.logs },
+	{ name: 'traces baseline', query: initialQueriesMap.traces },
+	{ name: 'promql query', query: makePromqlQuery() },
+	{ name: 'clickhouse query', query: makeClickhouseQuery() },
+	{ name: 'modified builder query', query: makeModifiedBuilderQuery() },
+	{ name: 'custom id', query: makeQueryWithCustomId() },
+	{ name: 'enum-like legend preserved', query: makeQueryWithEnumLikeLegend() },
+	{ name: 'wire delimiters in values', query: makeQueryWithWireDelimiters() },
+];

frontend/src/lib/compositeQuery/baseline.ts

@@ -0,0 +1,179 @@
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+/**
+ * Frozen canonical baselines the V-raw/TV adapters diff against. Encode stores
+ * only the diff from the chosen baseline; decode replays it onto a clone. These
+ * MUST stay byte-stable forever — changing them silently invalidates every URL
+ * already emitted against the old baseline. To evolve the schema, add NEW
+ * tagged adapters (V2~) with their own baselines rather than editing these.
+ *
+ * `id`/`unit` are empty so a real query's values round-trip as ordinary diff
+ * entries (nothing is stripped before diffing).
+ */
+
+/** Baseline for metrics queries — uses metric-style aggregations object. */
+export const METRICS_BASELINE = {
+	queryType: 'builder',
+	builder: {
+		queryData: [
+			{
+				dataSource: 'metrics',
+				queryName: 'A',
+				aggregateOperator: 'noop',
+				aggregateAttribute: {
+					id: '----',
+					key: '',
+					dataType: '',
+					type: '',
+				},
+				timeAggregation: 'rate',
+				spaceAggregation: 'sum',
+				filter: { expression: '' },
+				aggregations: [
+					{
+						metricName: '',
+						temporality: '',
+						timeAggregation: 'avg',
+						spaceAggregation: 'sum',
+						reduceTo: 'avg',
+					},
+				],
+				functions: [],
+				filters: { items: [], op: 'AND' },
+				expression: 'A',
+				disabled: false,
+				stepInterval: null,
+				having: [],
+				limit: null,
+				orderBy: [],
+				groupBy: [],
+				legend: '',
+				reduceTo: 'avg',
+				source: null,
+			},
+		],
+		queryFormulas: [],
+		queryTraceOperator: [],
+	},
+	promql: [{ name: 'A', query: '', legend: '', disabled: false }],
+	clickhouse_sql: [{ name: 'A', legend: '', disabled: false, query: '' }],
+	id: '',
+	unit: '',
+	// eslint-disable-next-line @typescript-eslint/no-explicit-any
+} as any as Query;
+
+/** Baseline for logs/traces queries — uses expression-style aggregations. */
+export const LOGS_BASELINE = {
+	queryType: 'builder',
+	builder: {
+		queryData: [
+			{
+				dataSource: 'logs',
+				queryName: 'A',
+				aggregateOperator: null,
+				aggregateAttribute: {
+					id: '----',
+					key: '',
+					dataType: '',
+					type: '',
+				},
+				timeAggregation: 'rate',
+				spaceAggregation: 'sum',
+				filter: { expression: '' },
+				aggregations: [{ expression: 'count() ' }],
+				functions: [],
+				filters: { items: [], op: 'AND' },
+				expression: 'A',
+				disabled: false,
+				stepInterval: null,
+				having: [],
+				limit: null,
+				orderBy: [],
+				groupBy: [],
+				legend: '',
+				reduceTo: 'avg',
+				source: null,
+			},
+		],
+		queryFormulas: [],
+		queryTraceOperator: [],
+	},
+	promql: [{ name: 'A', query: '', legend: '', disabled: false }],
+	clickhouse_sql: [{ name: 'A', legend: '', disabled: false, query: '' }],
+	id: '',
+	unit: '',
+	// eslint-disable-next-line @typescript-eslint/no-explicit-any
+} as any as Query;
+
+/** Baseline for traces queries — same as logs but with dataSource: traces. */
+export const TRACES_BASELINE = {
+	queryType: 'builder',
+	builder: {
+		queryData: [
+			{
+				dataSource: 'traces',
+				queryName: 'A',
+				aggregateOperator: null,
+				aggregateAttribute: {
+					id: '----',
+					key: '',
+					dataType: '',
+					type: '',
+				},
+				timeAggregation: 'rate',
+				spaceAggregation: 'sum',
+				filter: { expression: '' },
+				aggregations: [{ expression: 'count() ' }],
+				functions: [],
+				filters: { items: [], op: 'AND' },
+				expression: 'A',
+				disabled: false,
+				stepInterval: null,
+				having: [],
+				limit: null,
+				orderBy: [],
+				groupBy: [],
+				legend: '',
+				reduceTo: 'avg',
+				source: null,
+			},
+		],
+		queryFormulas: [],
+		queryTraceOperator: [],
+	},
+	promql: [{ name: 'A', query: '', legend: '', disabled: false }],
+	clickhouse_sql: [{ name: 'A', legend: '', disabled: false, query: '' }],
+	id: '',
+	unit: '',
+	// eslint-disable-next-line @typescript-eslint/no-explicit-any
+} as any as Query;
+
+/** Baseline tag indicators for URL encoding. */
+export type BaselineTag = 'm' | 'l' | 't';
+
+/** Pick optimal baseline based on query's primary dataSource. */
+export function pickBaseline(query: Query): {
+	baseline: Query;
+	tag: BaselineTag;
+} {
+	const ds = query.builder?.queryData?.[0]?.dataSource;
+	if (ds === 'logs') {
+		return { baseline: LOGS_BASELINE, tag: 'l' };
+	}
+	if (ds === 'traces') {
+		return { baseline: TRACES_BASELINE, tag: 't' };
+	}
+	return { baseline: METRICS_BASELINE, tag: 'm' };
+}
+
+function getBaselineByTag(tag: BaselineTag): Query {
+	if (tag === 'l') {
+		return LOGS_BASELINE;
+	}
+	if (tag === 't') {
+		return TRACES_BASELINE;
+	}
+	return METRICS_BASELINE;
+}
+
+export default getBaselineByTag;

frontend/src/lib/compositeQuery/serializer.ts

@@ -0,0 +1,28 @@
+import { jsonAdapter } from 'lib/compositeQuery/adapters/json';
+import { CompositeQueryAdapter } from 'lib/compositeQuery/types';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+import { flatKeysAdapter } from 'lib/compositeQuery/adapters/flatKeys';
+
+// Order matters for decode: most-specific (tagged) adapters first, json last
+const ADAPTERS: CompositeQueryAdapter[] = [flatKeysAdapter, jsonAdapter];
+
+/** Encode a query to the shortest available URL value. */
+export function serialize(query: Query): string {
+	return ADAPTERS.map((adapter) => adapter.encode(query)).reduce(
+		(shortest, candidate) =>
+			candidate.length < shortest.length ? candidate : shortest,
+	);
+}
+
+/** Decode a URL value back to a Query. Total: returns null on any failure. */
+export function deserialize(raw: string): Query | null {
+	if (!raw) {
+		return null;
+	}
+	try {
+		const adapter = ADAPTERS.find((item) => item.matches(raw)) ?? jsonAdapter;
+		return adapter.decode(raw);
+	} catch {
+		return null;
+	}
+}

frontend/src/lib/compositeQuery/types.ts

@@ -0,0 +1,14 @@
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+
+/**
+ * A serialization tier. `encode` returns the COMPLETE URL value (tag prefix
+ * included for tagged tiers). `matches` decides whether a raw value belongs to
+ * this adapter on decode. `decode` receives the COMPLETE raw value and strips
+ * its own tag.
+ */
+export interface CompositeQueryAdapter {
+	readonly name: string;
+	encode(query: Query): string;
+	matches(raw: string): boolean;
+	decode(raw: string): Query;
+}

frontend/src/lib/recentQueries/constants.ts

@@ -0,0 +1,5 @@
+export const STORAGE_KEY_PREFIX = 'qb_recent_v1';
+export const STORAGE_VERSION = 1;
+// Maximum entries kept per (signal, source) bucket. Larger than the UI's
+// RECENTS_DISPLAY_CAP so deleting a visible entry surfaces an older one.
+export const MAX_ENTRIES = 10;

frontend/src/lib/recentQueries/getRecentQueries.ts

@@ -0,0 +1,15 @@
+import type { SignalType } from 'types/api/v5/queryRange';
+
+import * as store from './recentQueriesStore';
+import type { RecentQueryEntry } from './types';
+
+// Synchronous, non-subscribing read of the recent-queries bucket for a given
+// (signal, source). Read-on-demand by design — subscribing here would
+// reconfigure CodeMirror on every store change and close any open completion
+// popup. Pair with saveQuery() for the write path.
+export function getRecentQueries(
+	signal: SignalType,
+	source = '',
+): RecentQueryEntry[] {
+	return store.list(signal, source);
+}

frontend/src/lib/recentQueries/normalize.test.ts

@@ -0,0 +1,100 @@
+import { normalizeFilterExpression } from './normalize';
+
+describe('normalizeFilterExpression', () => {
+	it('returns empty string for empty input', () => {
+		expect(normalizeFilterExpression('')).toBe('');
+	});
+
+	it('returns empty string for whitespace-only input', () => {
+		expect(normalizeFilterExpression('   \t  ')).toBe('');
+	});
+
+	it('strips whitespace around operators', () => {
+		expect(normalizeFilterExpression('  a = 1  ')).toBe('a=1');
+		expect(normalizeFilterExpression('a   =    1')).toBe('a=1');
+		expect(normalizeFilterExpression('a=1')).toBe('a=1');
+	});
+
+	it('lowercases AND / OR / NOT outside quotes', () => {
+		expect(normalizeFilterExpression('A AND B OR NOT C')).toBe('AandBornotC');
+	});
+
+	it('lowercases IN / LIKE / ILIKE / CONTAINS', () => {
+		expect(normalizeFilterExpression('host IN [1, 2] AND name LIKE "foo"')).toBe(
+			'hostin[1,2]andnamelike"foo"',
+		);
+	});
+
+	it('lowercases REGEXP', () => {
+		expect(normalizeFilterExpression('path REGEXP "foo"')).toBe(
+			'pathregexp"foo"',
+		);
+		expect(normalizeFilterExpression('path REGEXP "foo"')).toBe(
+			normalizeFilterExpression('path regexp "foo"'),
+		);
+	});
+
+	it('lowercases HAS / HASANY / HASALL / HASTOKEN function names', () => {
+		expect(normalizeFilterExpression('HAS(tags, "x")')).toBe(
+			normalizeFilterExpression('has(tags, "x")'),
+		);
+		expect(normalizeFilterExpression('HASANY(tags, ["a","b"])')).toBe(
+			normalizeFilterExpression('hasAny(tags, ["a","b"])'),
+		);
+		expect(normalizeFilterExpression('HASALL(tags, ["a","b"])')).toBe(
+			normalizeFilterExpression('hasAll(tags, ["a","b"])'),
+		);
+		expect(normalizeFilterExpression('HASTOKEN(msg, "err")')).toBe(
+			normalizeFilterExpression('hasToken(msg, "err")'),
+		);
+	});
+
+	it('lowercases TRUE / FALSE boolean literals', () => {
+		expect(normalizeFilterExpression('active = TRUE')).toBe(
+			normalizeFilterExpression('active = true'),
+		);
+		expect(normalizeFilterExpression('active = FALSE')).toBe(
+			normalizeFilterExpression('active = false'),
+		);
+	});
+
+	it('preserves whitespace and casing inside single-quoted strings', () => {
+		expect(normalizeFilterExpression("a = 'X  Y'")).toBe("a='X  Y'");
+	});
+
+	it('preserves whitespace and casing inside double-quoted strings', () => {
+		expect(normalizeFilterExpression('a   =   "X  Y"')).toBe('a="X  Y"');
+	});
+
+	it('does not lowercase keyword-looking substrings inside quotes', () => {
+		expect(normalizeFilterExpression("msg = 'AND ERROR'")).toBe(
+			"msg='AND ERROR'",
+		);
+	});
+
+	it('handles escaped quotes inside strings', () => {
+		expect(normalizeFilterExpression("msg = 'a\\'b' AND x = 1")).toBe(
+			"msg='a\\'b'andx=1",
+		);
+	});
+
+	it('treats two formattings of the same expression as identical', () => {
+		const a = normalizeFilterExpression(
+			'service.name = "frontend" AND severity = error',
+		);
+		const b = normalizeFilterExpression(
+			'service.name="frontend"   and  severity=error',
+		);
+		expect(a).toBe(b);
+	});
+
+	it('preserves unquoted value casing (treats them as identifiers)', () => {
+		expect(normalizeFilterExpression('status = OK')).toBe('status=OK');
+	});
+
+	it('handles mixed quotes in one expression', () => {
+		expect(normalizeFilterExpression(`a = 'X' AND b = "Y"`)).toBe(
+			`a='X'andb="Y"`,
+		);
+	});
+});

frontend/src/lib/recentQueries/normalize.ts

@@ -0,0 +1,56 @@
+import {
+	OPERATORS,
+	QUERY_BUILDER_FUNCTIONS,
+	TRACE_OPERATOR_OPERATORS,
+} from 'constants/antlrQueryConstants';
+
+// Reserved keywords sourced from the ANTLR grammar constants so this list stays
+// in sync with the parser. `\b` prevents partial matches inside identifiers
+// (e.g. `OR` inside `originator`). `TRUE`/`FALSE` are BOOL literals, included
+// so case variants of boolean values also dedup.
+const WORD_KEYWORDS = [
+	...Object.keys(OPERATORS).filter((k) => /^[A-Z]+$/.test(k)),
+	...Object.keys(TRACE_OPERATOR_OPERATORS).filter((k) => /^[A-Z]+$/.test(k)),
+	...Object.values(QUERY_BUILDER_FUNCTIONS),
+	'TRUE',
+	'FALSE',
+];
+
+const KEYWORDS_RE = new RegExp(`\\b(${WORD_KEYWORDS.join('|')})\\b`, 'gi');
+
+// Matches single- or double-quoted string literals, supporting escaped quotes
+// (e.g. `'it\'s'` or `"a \" b"`). We preserve quoted spans verbatim during
+// normalisation so user-meaningful whitespace and casing inside string values
+// stays intact: `name = "Foo Bar"` must not collapse to `name="foobar"`.
+const QUOTED_RE = /'(?:\\.|[^'\\])*'|"(?:\\.|[^"\\])*"/g;
+
+// Lowercases reserved keywords and strips ALL whitespace from the unquoted regions
+// of the input. Keywords are normalised so casing variants dedup; whitespace is
+// dropped so formatting variants (`a=1` vs `a = 1`) dedup too.
+function processOutsideQuotes(s: string): string {
+	return s.replace(KEYWORDS_RE, (m) => m.toLowerCase()).replace(/\s+/g, '');
+}
+
+// Produces a canonical form of a filter expression suitable for dedup-key derivation.
+// Walks the input alternating between unquoted regions (where we normalise keywords
+// and whitespace) and quoted regions (which we copy verbatim).
+export function normalizeFilterExpression(input: string): string {
+	if (!input) {
+		return '';
+	}
+
+	let result = '';
+	let lastIndex = 0;
+	QUOTED_RE.lastIndex = 0;
+
+	let match = QUOTED_RE.exec(input);
+	while (match !== null) {
+		result += processOutsideQuotes(input.slice(lastIndex, match.index));
+		result += match[0];
+		lastIndex = QUOTED_RE.lastIndex;
+		match = QUOTED_RE.exec(input);
+	}
+	result += processOutsideQuotes(input.slice(lastIndex));
+
+	return result.trim();
+}

frontend/src/lib/recentQueries/recentQueriesStore.test.ts

@@ -0,0 +1,247 @@
+import { MAX_ENTRIES } from './constants';
+import * as store from './recentQueriesStore';
+import type { RecentQueryInput } from './recentQueriesStore';
+import type { RecentQueryEntry } from './types';
+
+const baseInput = (
+	overrides: Partial<RecentQueryInput> = {},
+): RecentQueryInput => ({
+	signal: 'logs',
+	filter: { expression: "service.name = 'frontend'" },
+	...overrides,
+});
+
+function saveOrThrow(input: RecentQueryInput): RecentQueryEntry {
+	const saved = store.save(input);
+	if (!saved) {
+		throw new Error('expected save to return an entry');
+	}
+	return saved;
+}
+
+describe('recentQueries store', () => {
+	beforeEach(() => {
+		store.useRecentQueriesStore.setState({ buckets: {} });
+		localStorage.clear();
+	});
+
+	describe('save + list', () => {
+		it('saves an entry and lists it', () => {
+			store.save(baseInput());
+			const entries = store.list('logs');
+			expect(entries).toHaveLength(1);
+			expect(entries[0].filter.expression).toBe("service.name = 'frontend'");
+			expect(entries[0].id).toBeTruthy();
+			expect(entries[0].lastUsedAt).toBeGreaterThan(0);
+		});
+
+		it('does not save when the filter expression is empty', () => {
+			const result = store.save(baseInput({ filter: { expression: '' } }));
+			expect(result).toBeNull();
+			expect(store.list('logs')).toHaveLength(0);
+		});
+
+		it('does not save when the filter expression is whitespace only', () => {
+			const result = store.save(baseInput({ filter: { expression: '   ' } }));
+			expect(result).toBeNull();
+			expect(store.list('logs')).toHaveLength(0);
+		});
+	});
+
+	describe('LRU ordering', () => {
+		it('places the most recently saved entry at the front', () => {
+			store.save(baseInput({ filter: { expression: "severity_text = 'ERROR'" } }));
+			store.save(baseInput({ filter: { expression: 'http.status_code >= 500' } }));
+			store.save(baseInput({ filter: { expression: 'attempt = 1' } }));
+
+			const entries = store.list('logs');
+			expect(entries.map((e) => e.filter.expression)).toStrictEqual([
+				'attempt = 1',
+				'http.status_code >= 500',
+				"severity_text = 'ERROR'",
+			]);
+		});
+
+		it('re-saving an existing filter bumps it to the front', () => {
+			store.save(baseInput({ filter: { expression: "severity_text = 'ERROR'" } }));
+			store.save(baseInput({ filter: { expression: 'http.status_code >= 500' } }));
+			store.save(baseInput({ filter: { expression: "severity_text = 'ERROR'" } }));
+
+			const entries = store.list('logs');
+			expect(entries).toHaveLength(2);
+			expect(entries.map((e) => e.filter.expression)).toStrictEqual([
+				"severity_text = 'ERROR'",
+				'http.status_code >= 500',
+			]);
+		});
+	});
+
+	describe('dedup', () => {
+		it('treats formatting variations of the same filter as one entry', () => {
+			store.save(
+				baseInput({
+					filter: { expression: "severity_text = 'ERROR' AND attempt = 1" },
+				}),
+			);
+			store.save(
+				baseInput({
+					filter: { expression: "severity_text='ERROR'   and    attempt=1" },
+				}),
+			);
+
+			expect(store.list('logs')).toHaveLength(1);
+		});
+	});
+
+	describe('signal partitioning', () => {
+		it('saves to the right bucket per signal', () => {
+			store.save(
+				baseInput({
+					signal: 'logs',
+					filter: { expression: "severity_text = 'ERROR'" },
+				}),
+			);
+			store.save(
+				baseInput({
+					signal: 'traces',
+					filter: { expression: "service.name = 'orders-api'" },
+				}),
+			);
+			store.save(
+				baseInput({
+					signal: 'metrics',
+					filter: { expression: 'cpu_usage > 80' },
+				}),
+			);
+
+			expect(store.list('logs')).toHaveLength(1);
+			expect(store.list('traces')).toHaveLength(1);
+			expect(store.list('metrics')).toHaveLength(1);
+			expect(store.list('logs')[0].filter.expression).toBe(
+				"severity_text = 'ERROR'",
+			);
+			expect(store.list('traces')[0].filter.expression).toBe(
+				"service.name = 'orders-api'",
+			);
+			expect(store.list('metrics')[0].filter.expression).toBe('cpu_usage > 80');
+		});
+
+		it('does not leak between signals on dedup', () => {
+			store.save(
+				baseInput({
+					signal: 'logs',
+					filter: { expression: "service.name = 'frontend'" },
+				}),
+			);
+			store.save(
+				baseInput({
+					signal: 'traces',
+					filter: { expression: "service.name = 'frontend'" },
+				}),
+			);
+
+			expect(store.list('logs')).toHaveLength(1);
+			expect(store.list('traces')).toHaveLength(1);
+		});
+	});
+
+	describe('LRU cap', () => {
+		it('caps the bucket at MAX_ENTRIES and evicts the oldest', () => {
+			const total = MAX_ENTRIES + 1;
+			for (let i = 0; i < total; i += 1) {
+				store.save(baseInput({ filter: { expression: `attempt = ${i}` } }));
+			}
+
+			const entries = store.list('logs');
+			expect(entries).toHaveLength(MAX_ENTRIES);
+			expect(entries[0].filter.expression).toBe(`attempt = ${total - 1}`);
+			expect(entries.some((e) => e.filter.expression === 'attempt = 0')).toBe(
+				false,
+			);
+		});
+	});
+
+	describe('remove', () => {
+		it('removes an entry by id', () => {
+			store.save(baseInput({ filter: { expression: "severity_text = 'ERROR'" } }));
+			const saved = saveOrThrow(
+				baseInput({ filter: { expression: 'http.status_code >= 500' } }),
+			);
+			store.remove(saved.id, 'logs');
+
+			const entries = store.list('logs');
+			expect(entries).toHaveLength(1);
+			expect(entries[0].filter.expression).toBe("severity_text = 'ERROR'");
+		});
+
+		it('is a no-op when the id does not exist', () => {
+			store.save(baseInput({ filter: { expression: "severity_text = 'ERROR'" } }));
+			store.remove('does-not-exist', 'logs');
+			expect(store.list('logs')).toHaveLength(1);
+		});
+
+		it('does not touch other signals', () => {
+			const logsEntry = saveOrThrow(
+				baseInput({
+					signal: 'logs',
+					filter: { expression: "service.name = 'frontend'" },
+				}),
+			);
+			store.save(
+				baseInput({
+					signal: 'traces',
+					filter: { expression: "service.name = 'frontend'" },
+				}),
+			);
+
+			store.remove(logsEntry.id, 'logs');
+
+			expect(store.list('logs')).toHaveLength(0);
+			expect(store.list('traces')).toHaveLength(1);
+		});
+	});
+
+	describe('persistence', () => {
+		it('reads back the same entries after the in-memory state is reset', () => {
+			store.save(baseInput({ filter: { expression: "severity_text = 'ERROR'" } }));
+			store.save(baseInput({ filter: { expression: 'http.status_code >= 500' } }));
+
+			store.useRecentQueriesStore.setState({ buckets: {} });
+
+			const entries = store.list('logs');
+			expect(entries.map((e) => e.filter.expression)).toStrictEqual([
+				'http.status_code >= 500',
+				"severity_text = 'ERROR'",
+			]);
+		});
+	});
+
+	describe('reactive subscription via zustand', () => {
+		it('notifies zustand subscribers on save', () => {
+			const cb = jest.fn();
+			const unsubscribe = store.useRecentQueriesStore.subscribe(cb);
+			store.save(baseInput({ filter: { expression: "severity_text = 'ERROR'" } }));
+			expect(cb).toHaveBeenCalledTimes(1);
+			unsubscribe();
+		});
+
+		it('notifies zustand subscribers on remove', () => {
+			const saved = saveOrThrow(
+				baseInput({ filter: { expression: "severity_text = 'ERROR'" } }),
+			);
+			const cb = jest.fn();
+			const unsubscribe = store.useRecentQueriesStore.subscribe(cb);
+			store.remove(saved.id, 'logs');
+			expect(cb).toHaveBeenCalledTimes(1);
+			unsubscribe();
+		});
+
+		it('stops notifying after unsubscribe', () => {
+			const cb = jest.fn();
+			const unsubscribe = store.useRecentQueriesStore.subscribe(cb);
+			unsubscribe();
+			store.save(baseInput({ filter: { expression: "severity_text = 'ERROR'" } }));
+			expect(cb).not.toHaveBeenCalled();
+		});
+	});
+});

frontend/src/lib/recentQueries/recentQueriesStore.ts

@@ -0,0 +1,144 @@
+import get from 'api/browser/localstorage/get';
+import set from 'api/browser/localstorage/set';
+import type { SignalType } from 'types/api/v5/queryRange';
+import { create } from 'zustand';
+
+import { MAX_ENTRIES, STORAGE_VERSION } from './constants';
+import { normalizeFilterExpression } from './normalize';
+import type { RecentQueriesStoreShape, RecentQueryEntry } from './types';
+import { bucketKey, makeId, normalizeSource, storageKeyFor } from './utils';
+
+// Mirrors parsed localStorage so equal raw strings return the same array ref —
+// preserves Object.is for zustand selector bail-out.
+const persistedBucketCache = new Map<
+	string,
+	{ raw: string; parsed: RecentQueryEntry[] }
+>();
+
+function loadBucketFromStorage(
+	signal: SignalType,
+	source: string,
+): RecentQueryEntry[] | null {
+	const key = bucketKey(signal, source);
+	try {
+		const raw = get(storageKeyFor(signal, source));
+		if (!raw) {
+			persistedBucketCache.delete(key);
+			return null;
+		}
+		const cached = persistedBucketCache.get(key);
+		if (cached && cached.raw === raw) {
+			return cached.parsed;
+		}
+		const parsedShape = JSON.parse(raw) as RecentQueriesStoreShape;
+		if (
+			parsedShape?.version !== STORAGE_VERSION ||
+			!Array.isArray(parsedShape.entries)
+		) {
+			persistedBucketCache.delete(key);
+			return null;
+		}
+		persistedBucketCache.set(key, { raw, parsed: parsedShape.entries });
+		return parsedShape.entries;
+	} catch {
+		persistedBucketCache.delete(key);
+		return null;
+	}
+}
+
+function saveBucketToStorage(
+	signal: SignalType,
+	source: string,
+	entries: RecentQueryEntry[],
+): void {
+	try {
+		const raw = JSON.stringify({ version: STORAGE_VERSION, entries });
+		if (set(storageKeyFor(signal, source), raw)) {
+			persistedBucketCache.set(bucketKey(signal, source), {
+				raw,
+				parsed: entries,
+			});
+		}
+	} catch {
+		// Ignore storage errors (e.g. quota exceeded, JSON.stringify failure).
+	}
+}
+
+export type RecentQueryInput = Omit<
+	RecentQueryEntry,
+	'id' | 'lastUsedAt' | 'source'
+> & {
+	source?: string;
+};
+
+type RecentQueriesState = {
+	buckets: Record<string, RecentQueryEntry[]>;
+	save: (entry: RecentQueryInput) => RecentQueryEntry | null;
+	remove: (id: string, signal: SignalType, source?: string) => void;
+};
+
+export const useRecentQueriesStore = create<RecentQueriesState>()(
+	(set, get) => ({
+		buckets: {},
+
+		save: (entry): RecentQueryEntry | null => {
+			const normalized = normalizeFilterExpression(entry.filter.expression);
+			if (!normalized) {
+				return null;
+			}
+			const source = normalizeSource(entry.source);
+			const key = bucketKey(entry.signal, source);
+
+			const current =
+				get().buckets[key] ?? loadBucketFromStorage(entry.signal, source) ?? [];
+			const filtered = current.filter(
+				(e) => normalizeFilterExpression(e.filter.expression) !== normalized,
+			);
+
+			const newEntry: RecentQueryEntry = {
+				...entry,
+				source,
+				id: makeId(entry.signal, source, normalized),
+				lastUsedAt: Date.now(),
+			};
+
+			const next = [newEntry, ...filtered].slice(0, MAX_ENTRIES);
+			set({ buckets: { ...get().buckets, [key]: next } });
+			saveBucketToStorage(entry.signal, source, next);
+			return newEntry;
+		},
+
+		remove: (id, signal, source = ''): void => {
+			const key = bucketKey(signal, source);
+			const current = get().buckets[key] ?? loadBucketFromStorage(signal, source);
+			if (!current) {
+				return;
+			}
+			const next = current.filter((e) => e.id !== id);
+			if (next.length === current.length) {
+				return;
+			}
+			set({ buckets: { ...get().buckets, [key]: next } });
+			saveBucketToStorage(signal, source, next);
+		},
+	}),
+);
+
+// Plain-function wrappers for non-React callers — same pattern as useColumnStore.ts.
+export function save(entry: RecentQueryInput): RecentQueryEntry | null {
+	return useRecentQueriesStore.getState().save(entry);
+}
+
+export function remove(id: string, signal: SignalType, source = ''): void {
+	useRecentQueriesStore.getState().remove(id, signal, source);
+}
+
+// Synchronous bucket read with localStorage fallback for non-React callers.
+export function list(signal: SignalType, source = ''): RecentQueryEntry[] {
+	const key = bucketKey(signal, source);
+	const state = useRecentQueriesStore.getState();
+	if (state.buckets[key]) {
+		return state.buckets[key];
+	}
+	return loadBucketFromStorage(signal, source) ?? [];
+}

frontend/src/lib/recentQueries/saveRecentQuery.test.ts

@@ -0,0 +1,113 @@
+import { DataSource } from 'types/common/queryBuilder';
+import type { IBuilderQuery } from 'types/api/queryBuilder/queryBuilderData';
+import { validateQuery } from 'utils/queryValidationUtils';
+
+import * as store from './recentQueriesStore';
+import { saveRecentQuery } from './saveRecentQuery';
+
+jest.mock('utils/queryValidationUtils', () => ({
+	validateQuery: jest.fn(),
+}));
+
+const mockedValidateQuery = validateQuery as jest.MockedFunction<
+	typeof validateQuery
+>;
+
+const buildComposite = (
+	overrides: Partial<IBuilderQuery>[] = [{}],
+): { builder: { queryData: IBuilderQuery[] } } => ({
+	builder: {
+		queryData: overrides.map((o, i) => ({
+			queryName: `Q${i}`,
+			dataSource: DataSource.LOGS,
+			aggregateOperator: 'count',
+			aggregateAttribute: undefined as never,
+			functions: [],
+			filter: { expression: 'service.name = "frontend"' },
+			groupBy: [],
+			expression: `Q${i}`,
+			disabled: false,
+			having: [],
+			limit: null,
+			stepInterval: null,
+			orderBy: [],
+			legend: '',
+			...o,
+		})) as IBuilderQuery[],
+	},
+});
+
+describe('saveRecentQuery', () => {
+	beforeEach(() => {
+		store.useRecentQueriesStore.setState({ buckets: {} });
+		localStorage.clear();
+		mockedValidateQuery.mockReturnValue({
+			isValid: true,
+			message: '',
+			errors: [],
+		});
+	});
+
+	it('saves the composite query when validation passes', () => {
+		saveRecentQuery(buildComposite());
+
+		const entries = store.list('logs');
+		expect(entries).toHaveLength(1);
+		expect(entries[0].filter.expression).toBe('service.name = "frontend"');
+	});
+
+	it('does not save when validateQuery rejects the expression', () => {
+		mockedValidateQuery.mockReturnValue({
+			isValid: false,
+			message: 'bad',
+			errors: [],
+		});
+
+		saveRecentQuery(buildComposite());
+
+		expect(store.list('logs')).toHaveLength(0);
+	});
+
+	it('does not save a builder query with an empty filter expression', () => {
+		saveRecentQuery(buildComposite([{ filter: { expression: '' } }]));
+
+		expect(store.list('logs')).toHaveLength(0);
+	});
+
+	it('saves each builder query in the composite separately', () => {
+		saveRecentQuery(
+			buildComposite([
+				{
+					dataSource: DataSource.LOGS,
+					filter: { expression: "service.name = 'frontend'" },
+				},
+				{
+					dataSource: DataSource.TRACES,
+					filter: { expression: "service.name = 'orders-api'" },
+				},
+			]),
+		);
+
+		expect(store.list('logs')).toHaveLength(1);
+		expect(store.list('traces')).toHaveLength(1);
+	});
+
+	it('skips builder queries whose dataSource is not a supported signal', () => {
+		saveRecentQuery(
+			buildComposite([{ dataSource: 'unknown' as IBuilderQuery['dataSource'] }]),
+		);
+
+		expect(store.list('logs')).toHaveLength(0);
+		expect(store.list('traces')).toHaveLength(0);
+		expect(store.list('metrics')).toHaveLength(0);
+	});
+
+	it('is a no-op when the composite is null, undefined, or empty', () => {
+		saveRecentQuery(null);
+		saveRecentQuery(undefined);
+		saveRecentQuery({ builder: { queryData: [] } });
+		saveRecentQuery({});
+
+		expect(store.list('logs')).toHaveLength(0);
+	});
+});

frontend/src/lib/recentQueries/saveRecentQuery.ts

@@ -0,0 +1,52 @@
+import type { IBuilderQuery } from 'types/api/queryBuilder/queryBuilderData';
+import type { SignalType } from 'types/api/v5/queryRange';
+import { validateQuery } from 'utils/queryValidationUtils';
+
+import * as store from './recentQueriesStore';
+
+function toSignal(dataSource: IBuilderQuery['dataSource']): SignalType | null {
+	if (
+		dataSource === 'logs' ||
+		dataSource === 'traces' ||
+		dataSource === 'metrics'
+	) {
+		return dataSource;
+	}
+	return null;
+}
+
+type CompositeWithBuilder = {
+	builder?: { queryData?: IBuilderQuery[] };
+};
+
+// Persists each builder query in the composite as a recent entry. Call this
+// only from explicit user-driven Run triggers — reacting to stagedQuery or any
+// other derived state pollutes recents with navigation/refresh/go-to traffic.
+export function saveRecentQuery(
+	query: CompositeWithBuilder | null | undefined,
+): void {
+	const queryData = query?.builder?.queryData;
+	if (!Array.isArray(queryData) || queryData.length === 0) {
+		return;
+	}
+
+	queryData.forEach((q) => {
+		const expression = q.filter?.expression?.trim();
+		if (!expression) {
+			return;
+		}
+		const validation = validateQuery(expression);
+		if (!validation.isValid) {
+			return;
+		}
+		const signal = toSignal(q.dataSource);
+		if (!signal) {
+			return;
+		}
+		store.save({
+			signal,
+			source: q.source ?? '',
+			filter: q.filter ?? { expression: '' },
+		});
+	});
+}

frontend/src/lib/recentQueries/types.ts

@@ -0,0 +1,14 @@
+import type { Filter, SignalType } from 'types/api/v5/queryRange';
+
+export interface RecentQueryEntry {
+	id: string;
+	signal: SignalType;
+	source: string;
+	filter: Filter;
+	lastUsedAt: number;
+}
+
+export interface RecentQueriesStoreShape {
+	version: 1;
+	entries: RecentQueryEntry[];
+}

frontend/src/lib/recentQueries/utils.ts

@@ -0,0 +1,24 @@
+import type { SignalType } from 'types/api/v5/queryRange';
+
+import { STORAGE_KEY_PREFIX } from './constants';
+
+export function normalizeSource(source: string | undefined): string {
+	return source ?? '';
+}
+
+export function bucketKey(signal: SignalType, source: string): string {
+	return `${signal}:${source}`;
+}
+
+export function storageKeyFor(signal: SignalType, source: string): string {
+	return `${STORAGE_KEY_PREFIX}:${bucketKey(signal, source)}`;
+}
+
+// Same (signal, source, normalized filter) ⇒ same id ⇒ upsert.
+export function makeId(
+	signal: SignalType,
+	source: string,
+	normalizedFilter: string,
+): string {
+	return `${signal}|${source}|${normalizedFilter}`;
+}

frontend/src/pages/DashboardPage/DashboardPage.tsx

@@ -0,0 +1,53 @@
+import { useEffect } from 'react';
+import { useParams } from 'react-router-dom';
+import { Modal } from 'antd';
+import { Typography } from '@signozhq/ui/typography';
+import { AxiosError } from 'axios';
+import NotFound from 'components/NotFound';
+import Spinner from 'components/Spinner';
+import DashboardContainer from 'container/DashboardContainer';
+import { useDashboardBootstrap } from 'hooks/dashboard/useDashboardBootstrap';
+import { useDashboardStore } from 'providers/Dashboard/store/useDashboardStore';
+import { ErrorType } from 'types/common';
+
+function DashboardPage(): JSX.Element {
+	const { dashboardId } = useParams<{ dashboardId: string }>();
+
+	const [onModal, Content] = Modal.useModal();
+
+	const { isLoading, isError, isFetching, error } = useDashboardBootstrap(
+		dashboardId,
+		{ confirm: onModal.confirm },
+	);
+
+	const dashboardTitle = useDashboardStore((s) => s.dashboardData?.data.title);
+
+	useEffect(() => {
+		document.title = dashboardTitle || document.title;
+	}, [dashboardTitle]);
+
+	const errorMessage = isError
+		? (error as AxiosError<{ errorType: string }>)?.response?.data?.errorType
+		: 'Something went wrong';
+
+	if (isError && !isFetching && errorMessage === ErrorType.NotFound) {
+		return <NotFound />;
+	}
+
+	if (isError && errorMessage) {
+		return <Typography>{errorMessage}</Typography>;
+	}
+
+	if (isLoading) {
+		return <Spinner tip="Loading.." />;
+	}
+
+	return (
+		<>
+			{Content}
+			<DashboardContainer />
+		</>
+	);
+}
+
+export default DashboardPage;

frontend/src/pages/DashboardPage/index.tsx

@@ -1,53 +1,15 @@
-import { useEffect } from 'react';
-import { useParams } from 'react-router-dom';
-import { Modal } from 'antd';
-import { Typography } from '@signozhq/ui/typography';
-import { AxiosError } from 'axios';
-import NotFound from 'components/NotFound';
-import Spinner from 'components/Spinner';
-import DashboardContainer from 'container/DashboardContainer';
-import { useDashboardBootstrap } from 'hooks/dashboard/useDashboardBootstrap';
-import { useDashboardStore } from 'providers/Dashboard/store/useDashboardStore';
-import { ErrorType } from 'types/common';
+import { useIsDashboardV2 } from 'hooks/useIsDashboardV2';
+import DashboardPageV2 from 'pages/DashboardPageV2';
 
-function DashboardPage(): JSX.Element {
-	const { dashboardId } = useParams<{ dashboardId: string }>();
+import DashboardPage from './DashboardPage';
 
-	const [onModal, Content] = Modal.useModal();
+// Serves the V2 dashboard detail page when the `use_dashboard_v2` flag is active;
+// otherwise the existing V1 page. Lets V2 dark-ship behind the flag without
+// changing route definitions.
+function DashboardPageEntry(): JSX.Element {
+	const isDashboardV2 = useIsDashboardV2();
 
-	const { isLoading, isError, isFetching, error } = useDashboardBootstrap(
-		dashboardId,
-		{ confirm: onModal.confirm },
-	);
-
-	const dashboardTitle = useDashboardStore((s) => s.dashboardData?.data.title);
-
-	useEffect(() => {
-		document.title = dashboardTitle || document.title;
-	}, [dashboardTitle]);
-
-	const errorMessage = isError
-		? (error as AxiosError<{ errorType: string }>)?.response?.data?.errorType
-		: 'Something went wrong';
-
-	if (isError && !isFetching && errorMessage === ErrorType.NotFound) {
-		return <NotFound />;
-	}
-
-	if (isError && errorMessage) {
-		return <Typography>{errorMessage}</Typography>;
-	}
-
-	if (isLoading) {
-		return <Spinner tip="Loading.." />;
-	}
-
-	return (
-		<>
-			{Content}
-			<DashboardContainer />
-		</>
-	);
+	return isDashboardV2 ? <DashboardPageV2 /> : <DashboardPage />;
 }
 
-export default DashboardPage;
+export default DashboardPageEntry;

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/VariableForm/DynamicVariableFields.tsx

@@ -0,0 +1,103 @@
+import { useEffect, useMemo, useState } from 'react';
+import { SelectSimple } from '@signozhq/ui/select';
+import { Typography } from '@signozhq/ui/typography';
+import cx from 'classnames';
+// eslint-disable-next-line signoz/no-antd-components -- searchable async select: no @signozhq/ui equivalent
+import { Select } from 'antd';
+import { useGetFieldKeys } from 'hooks/dynamicVariables/useGetFieldKeys';
+import { useGetFieldValues } from 'hooks/dynamicVariables/useGetFieldValues';
+import useDebounce from 'hooks/useDebounce';
+
+import { TELEMETRY_SIGNALS, type TelemetrySignal } from '../variableModel';
+import styles from './VariableForm.module.scss';
+
+interface DynamicVariableFieldsProps {
+	attribute: string;
+	signal: TelemetrySignal;
+	onChange: (patch: {
+		dynamicAttribute?: string;
+		dynamicSignal?: TelemetrySignal;
+	}) => void;
+	onPreview: (values: (string | number)[]) => void;
+}
+
+/** Dynamic-variable body: telemetry signal + field, whose live values preview. */
+function DynamicVariableFields({
+	attribute,
+	signal,
+	onChange,
+	onPreview,
+}: DynamicVariableFieldsProps): JSX.Element {
+	const [search, setSearch] = useState('');
+	const debouncedSearch = useDebounce(search, 300);
+
+	const { data: keyData, isLoading } = useGetFieldKeys({
+		signal,
+		name: debouncedSearch || undefined,
+	});
+
+	// `keys` is a Record keyed BY field name; the field names are the map keys.
+	// When the API reports the list is `complete`, search filters locally.
+	const isComplete = keyData?.data?.complete === true;
+	const options = useMemo(
+		() =>
+			Object.keys(keyData?.data?.keys ?? {}).map((name) => ({
+				label: name,
+				value: name,
+			})),
+		[keyData],
+	);
+
+	const { data: valueData } = useGetFieldValues({
+		signal,
+		name: attribute,
+		enabled: !!attribute,
+	});
+
+	useEffect(() => {
+		const payload = valueData?.data;
+		const values =
+			payload?.normalizedValues ?? payload?.values?.StringValues ?? [];
+		onPreview(values);
+		// eslint-disable-next-line react-hooks/exhaustive-deps
+	}, [valueData]);
+
+	return (
+		<>
+			<div className={cx(styles.row, styles.sortSection)}>
+				<div className={styles.labelContainer}>
+					<Typography.Text className={styles.label}>Source</Typography.Text>
+				</div>
+				<SelectSimple
+					className={styles.sortSelect}
+					value={signal}
+					items={TELEMETRY_SIGNALS.map((s) => ({ label: s, value: s }))}
+					onChange={(value): void =>
+						onChange({ dynamicSignal: value as TelemetrySignal })
+					}
+					testId="variable-signal-select"
+				/>
+			</div>
+			<div className={cx(styles.row, styles.sortSection)}>
+				<div className={styles.labelContainer}>
+					<Typography.Text className={styles.label}>Attribute</Typography.Text>
+				</div>
+				<Select
+					className={styles.searchSelect}
+					showSearch
+					value={attribute || undefined}
+					placeholder="Select a telemetry field"
+					loading={isLoading}
+					filterOption={isComplete}
+					onSearch={setSearch}
+					onChange={(value): void => onChange({ dynamicAttribute: value as string })}
+					options={options}
+					notFoundContent={isLoading ? 'Loading…' : 'No fields found'}
+					data-testid="variable-field-select"
+				/>
+			</div>
+		</>
+	);
+}
+
+export default DynamicVariableFields;

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/VariableForm/QueryVariableFields.tsx

@@ -0,0 +1,93 @@
+import { useState } from 'react';
+import { Button } from '@signozhq/ui/button';
+import { Typography } from '@signozhq/ui/typography';
+import dashboardVariablesQuery from 'api/dashboard/variables/dashboardVariablesQuery';
+import Editor from 'components/Editor';
+import sortValues from 'lib/dashboardVariables/sortVariableValues';
+
+import type { VariableSort } from '../variableModel';
+import styles from './VariableForm.module.scss';
+
+interface QueryVariableFieldsProps {
+	queryValue: string;
+	sort: VariableSort;
+	onChange: (queryValue: string) => void;
+	onPreview: (values: (string | number)[]) => void;
+	onError: (message: string | null) => void;
+}
+
+/** Query-variable body: SQL editor + "Test Run Query" that previews the values. */
+function QueryVariableFields({
+	queryValue,
+	sort,
+	onChange,
+	onPreview,
+	onError,
+}: QueryVariableFieldsProps): JSX.Element {
+	const [isRunning, setIsRunning] = useState(false);
+
+	const runTest = async (): Promise<void> => {
+		setIsRunning(true);
+		onError(null);
+		try {
+			const res = await dashboardVariablesQuery({
+				query: queryValue,
+				variables: {},
+			});
+			if (res.statusCode === 200 && res.payload) {
+				onPreview(
+					sortValues(res.payload.variableValues ?? [], sort) as (string | number)[],
+				);
+			} else {
+				onError(res.error || 'Failed to run query');
+				onPreview([]);
+			}
+		} catch (err) {
+			onError((err as Error).message || 'Failed to run query');
+			onPreview([]);
+		} finally {
+			setIsRunning(false);
+		}
+	};
+
+	return (
+		<div className={styles.queryContainer}>
+			<div className={styles.labelContainer}>
+				<Typography.Text className={styles.label}>Query</Typography.Text>
+			</div>
+			<div className={styles.editorWrap}>
+				<Editor
+					language="sql"
+					value={queryValue}
+					onChange={(value): void => onChange(value)}
+					height="240px"
+					options={{
+						fontSize: 13,
+						wordWrap: 'on',
+						lineNumbers: 'off',
+						glyphMargin: false,
+						folding: false,
+						lineDecorationsWidth: 0,
+						lineNumbersMinChars: 0,
+						minimap: { enabled: false },
+					}}
+				/>
+			</div>
+			<div className={styles.testRow}>
+				<Button
+					variant="solid"
+					color="primary"
+					size="sm"
+					loading={isRunning}
+					disabled={!queryValue}
+					onClick={runTest}
+					testId="variable-test-run"
+				>
+					Test Run Query
+				</Button>
+			</div>
+		</div>
+	);
+}
+
+export default QueryVariableFields;

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/VariableForm/VariableForm.module.scss

@@ -0,0 +1,310 @@
+/* Faithful reproduction of the V1 VariableItem layout, scoped as a module and
+   built on @signozhq components where possible. antd is retained only for the
+   monaco Editor, multiline TextArea, Collapse, and searchable Selects. */
+
+.container {
+	display: flex;
+	flex-direction: column;
+	border: 1px solid var(--l1-border);
+	border-radius: 3px;
+}
+
+.allVariables {
+	display: flex;
+	align-items: center;
+	gap: 8px;
+	padding: 10px 16px;
+	border-bottom: 1px solid var(--l1-border);
+}
+
+.allVariablesBtn {
+	--button-height: 24px;
+	--button-padding: 0;
+	color: var(--muted-foreground);
+}
+
+.content {
+	display: flex;
+	flex-direction: column;
+	gap: 20px;
+	padding: 12px 16px 20px;
+}
+
+/* VariableItemRow */
+.row {
+	display: flex;
+	gap: 1rem;
+	margin-bottom: 0;
+}
+
+/* LabelContainer */
+.labelContainer {
+	width: 200px;
+}
+
+.label {
+	color: var(--l2-foreground);
+	font-family: Inter;
+	font-size: 14px;
+	font-weight: 400;
+	line-height: 20px;
+}
+
+.column {
+	flex-direction: column;
+	gap: 8px;
+}
+
+.input,
+.textarea,
+.defaultInput {
+	padding: 6px 6px 6px 8px;
+	border: 1px solid var(--l1-border);
+	border-radius: 2px;
+	background: var(--l3-background);
+}
+
+.input,
+.textarea {
+	width: 100%;
+}
+
+.defaultInput {
+	width: 342px;
+}
+
+.errorText {
+	font-size: 12px;
+	color: var(--bg-amber-500);
+}
+
+/* Variable type segmented group */
+.typeSection {
+	align-items: center;
+	justify-content: space-between;
+}
+
+.typeLabelContainer {
+	display: flex;
+	align-items: center;
+	gap: 8px;
+	width: auto;
+}
+
+.typeBtnGroup {
+	display: grid;
+	grid-template-columns: repeat(4, max-content);
+	height: 32px;
+	flex-shrink: 0;
+	border: 1px solid var(--l1-border);
+	border-radius: 2px;
+	background: var(--l2-background);
+	box-shadow: 0 0 8px 0 rgba(0, 0, 0, 0.1);
+}
+
+.typeBtn {
+	--button-height: 32px;
+	display: flex;
+	align-items: center;
+	justify-content: center;
+	gap: 4px;
+	min-width: 114px;
+	border-radius: 0;
+	color: var(--l2-foreground);
+
+	& + & {
+		border-left: 1px solid var(--l1-border);
+	}
+}
+
+.typeBtnSelected {
+	background: var(--l1-border);
+	color: var(--l1-foreground);
+}
+
+.betaTag {
+	margin-left: 4px;
+}
+
+/* Query */
+.queryContainer {
+	display: flex;
+	flex-flow: column wrap;
+	gap: 1rem;
+	min-width: 0;
+	margin-bottom: 0;
+}
+
+.editorWrap {
+	height: 240px;
+	overflow: hidden;
+	border: 1px solid var(--l1-border);
+	border-radius: 2px;
+}
+
+.testRow {
+	display: flex;
+	margin-top: 8px;
+}
+
+/* Custom — antd Collapse */
+.customSection {
+	margin-bottom: 0;
+}
+
+.customSection :global(.custom-collapse) {
+	width: 100%;
+	border: 1px solid var(--l1-border);
+	border-radius: 3px 3px 0 0;
+
+	:global(.ant-collapse-item) {
+		border-bottom: none;
+	}
+
+	:global(.ant-collapse-header) {
+		align-items: center;
+		gap: 8px;
+		height: 38px;
+		padding: 12px;
+		background: var(--l3-background);
+		border-radius: 3px 3px 0 0;
+	}
+
+	:global(.ant-collapse-header-text) {
+		display: flex;
+		align-items: center;
+		gap: 10px;
+		padding: 1px 2px;
+		color: var(--bg-robin-400);
+		font-family: 'Space Mono';
+		font-size: 14px;
+		line-height: 18px;
+		border-radius: 2px;
+		background: color-mix(in srgb, var(--bg-robin-400) 8%, transparent);
+	}
+
+	:global(.ant-collapse-content-box) {
+		padding: 0;
+	}
+
+	:global(.comma-input) {
+		height: 109px;
+		border: none;
+	}
+}
+
+/* Textbox */
+.textboxSection {
+	align-items: center;
+	justify-content: space-between;
+	margin-bottom: 0;
+}
+
+/* Preview strip */
+.previewSection {
+	display: flex;
+	flex-direction: column;
+	gap: 8px;
+	min-height: 88px;
+	margin-bottom: 0;
+	padding-bottom: 8px;
+	border: 1px solid var(--l1-border);
+	border-radius: 3px;
+}
+
+.previewLabel {
+	align-self: flex-start;
+	display: inline-flex;
+	align-items: center;
+	gap: 10px;
+	padding: 4px 8px;
+	color: var(--bg-robin-400);
+	font-family: 'Space Mono';
+	font-size: 14px;
+	line-height: 18px;
+	border-radius: 3px 0 2px;
+	background: color-mix(in srgb, var(--bg-robin-400) 8%, transparent);
+}
+
+.previewValues {
+	display: flex;
+	flex-flow: wrap;
+	gap: 8px;
+	padding: 4.5px 11px;
+	overflow-y: auto;
+}
+
+.previewValues [data-slot='badge'] {
+	height: 30px;
+	align-items: center;
+	color: var(--l1-foreground);
+	font-family: 'Space Mono';
+	font-size: 14px;
+	border: 1px solid var(--l1-border);
+	border-radius: 2px;
+}
+
+.previewError {
+	color: var(--bg-amber-500);
+}
+
+/* Sort / multi / all / default rows */
+.sortSection,
+.multiSection,
+.allOptionSection,
+.dynamicSection {
+	align-items: flex-start;
+	justify-content: space-between;
+	margin-bottom: 0;
+}
+
+.sortSection {
+	align-items: center;
+}
+
+.rowLabel {
+	width: 339px;
+	color: var(--l2-foreground);
+	font-family: Inter;
+	font-size: 14px;
+	line-height: 20px;
+	letter-spacing: -0.07px;
+}
+
+.sortSelect {
+	width: 192px;
+}
+
+.defaultValueSection {
+	display: grid;
+	grid-template-columns: max-content 1fr;
+	gap: 1rem;
+	align-items: center;
+	margin-bottom: 0;
+}
+
+.defaultValueSection .label {
+	display: block;
+	margin-bottom: 2px;
+}
+
+.defaultValueDesc {
+	display: block;
+	color: var(--l2-foreground);
+	font-family: Inter;
+	font-size: 11px;
+	line-height: 18px;
+	letter-spacing: -0.06px;
+}
+
+.searchSelect {
+	width: 100%;
+}
+
+/* Footer */
+.footer {
+	display: flex;
+	justify-content: flex-end;
+	gap: 1rem;
+	margin-top: 12px;
+}

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/VariableForm/VariableForm.tsx

@@ -0,0 +1,351 @@
+import { useEffect, useState } from 'react';
+import { ArrowLeft, Check, X } from '@signozhq/icons';
+import { Badge } from '@signozhq/ui/badge';
+import { Button } from '@signozhq/ui/button';
+import { Input } from '@signozhq/ui/input';
+import { SelectSimple } from '@signozhq/ui/select';
+import { Switch } from '@signozhq/ui/switch';
+import { Typography } from '@signozhq/ui/typography';
+import cx from 'classnames';
+// eslint-disable-next-line signoz/no-antd-components -- TextArea/Collapse/searchable Select: no @signozhq/ui equivalent
+import { Collapse, Input as AntdInput, Select } from 'antd';
+import { commaValuesParser } from 'lib/dashboardVariables/customCommaValuesParser';
+import sortValues from 'lib/dashboardVariables/sortVariableValues';
+
+import {
+	VARIABLE_SORTS,
+	type VariableFormModel,
+	type VariableSort,
+	type VariableType,
+} from '../variableModel';
+import DynamicVariableFields from './DynamicVariableFields';
+import QueryVariableFields from './QueryVariableFields';
+import VariableTypeSelector from './VariableTypeSelector';
+import styles from './VariableForm.module.scss';
+
+const SORT_LABEL: Record<VariableSort, string> = {
+	DISABLED: 'Disabled',
+	ASC: 'Ascending',
+	DESC: 'Descending',
+};
+
+function getNameError(name: string, existingNames: string[]): string | null {
+	if (name === '') {
+		return 'Variable name is required';
+	}
+	if (/\s/.test(name)) {
+		return 'Variable name cannot contain whitespaces';
+	}
+	if (existingNames.includes(name)) {
+		return 'Variable name already exists';
+	}
+	return null;
+}
+
+interface VariableFormProps {
+	initial: VariableFormModel;
+	/** Names of the other variables, for uniqueness validation. */
+	existingNames: string[];
+	isSaving: boolean;
+	onClose: () => void;
+	onSave: (model: VariableFormModel) => void;
+}
+
+/**
+ * In-drawer variable editor reproducing the V1 VariableItem layout, built on
+ * @signozhq components (antd kept only for the monaco editor, TextArea, Collapse
+ * and searchable selects). Master→detail: renders in place of the list.
+ */
+function VariableForm({
+	initial,
+	existingNames,
+	isSaving,
+	onClose,
+	onSave,
+}: VariableFormProps): JSX.Element {
+	const [model, setModel] = useState<VariableFormModel>(initial);
+	const [previewValues, setPreviewValues] = useState<(string | number)[]>([]);
+	const [previewError, setPreviewError] = useState<string | null>(null);
+	const [defaultValue, setDefaultValue] = useState<string>(
+		((initial.defaultValue as { value?: string })?.value ?? '') as string,
+	);
+
+	useEffect(() => {
+		setModel(initial);
+		setPreviewValues([]);
+		setPreviewError(null);
+		setDefaultValue(
+			((initial.defaultValue as { value?: string })?.value ?? '') as string,
+		);
+	}, [initial]);
+
+	const set = (patch: Partial<VariableFormModel>): void =>
+		setModel((prev) => ({ ...prev, ...patch }));
+
+	const selectType = (type: VariableType): void => {
+		set({ type });
+		setPreviewValues([]);
+		setPreviewError(null);
+	};
+
+	const onCustomChange = (value: string): void => {
+		set({ customValue: value });
+		setPreviewValues(
+			sortValues(commaValuesParser(value), model.sort) as (string | number)[],
+		);
+	};
+
+	const trimmedName = model.name.trim();
+	const nameError = getNameError(trimmedName, existingNames);
+
+	const isListType =
+		model.type === 'QUERY' || model.type === 'CUSTOM' || model.type === 'DYNAMIC';
+	const showAllOptionField = model.type === 'QUERY' || model.type === 'CUSTOM';
+
+	const handleSave = (): void => {
+		onSave({
+			...model,
+			name: trimmedName,
+			defaultValue: defaultValue ? { value: defaultValue } : undefined,
+		});
+	};
+
+	return (
+		<>
+			<div className={styles.container}>
+				<div className={styles.allVariables}>
+					<Button
+						variant="ghost"
+						color="secondary"
+						className={styles.allVariablesBtn}
+						prefix={<ArrowLeft size={14} />}
+						onClick={onClose}
+						testId="variable-form-back"
+					>
+						All variables
+					</Button>
+				</div>
+
+				<div className={styles.content}>
+					{/* Name */}
+					<div className={cx(styles.row, styles.column)}>
+						<Typography.Text className={styles.label}>Name</Typography.Text>
+						<Input
+							className={styles.input}
+							value={model.name}
+							placeholder="Unique name of the variable"
+							onChange={(e): void => set({ name: e.target.value })}
+							testId="variable-name-input"
+						/>
+						{nameError ? (
+							<Typography.Text className={styles.errorText}>
+								{nameError}
+							</Typography.Text>
+						) : null}
+					</div>
+
+					{/* Description */}
+					<div className={cx(styles.row, styles.column)}>
+						<Typography.Text className={styles.label}>Description</Typography.Text>
+						<AntdInput.TextArea
+							className={styles.textarea}
+							value={model.description}
+							placeholder="Enter a description for the variable"
+							rows={3}
+							onChange={(e): void => set({ description: e.target.value })}
+							data-testid="variable-description-input"
+						/>
+					</div>
+
+					{/* Variable Type */}
+					<VariableTypeSelector value={model.type} onChange={selectType} />
+
+					{/* Type-specific body */}
+					{model.type === 'DYNAMIC' ? (
+						<DynamicVariableFields
+							attribute={model.dynamicAttribute}
+							signal={model.dynamicSignal}
+							onChange={(patch): void => set(patch)}
+							onPreview={setPreviewValues}
+						/>
+					) : null}
+
+					{model.type === 'QUERY' ? (
+						<QueryVariableFields
+							queryValue={model.queryValue}
+							sort={model.sort}
+							onChange={(queryValue): void => set({ queryValue })}
+							onPreview={setPreviewValues}
+							onError={setPreviewError}
+						/>
+					) : null}
+
+					{model.type === 'CUSTOM' ? (
+						<div className={cx(styles.row, styles.customSection)}>
+							<Collapse
+								collapsible="header"
+								rootClassName="custom-collapse"
+								defaultActiveKey={['1']}
+								items={[
+									{
+										key: '1',
+										label: 'Options',
+										children: (
+											<AntdInput.TextArea
+												value={model.customValue}
+												placeholder="Enter options separated by commas."
+												rootClassName="comma-input"
+												onChange={(e): void => onCustomChange(e.target.value)}
+												data-testid="variable-custom-input"
+											/>
+										),
+									},
+								]}
+							/>
+						</div>
+					) : null}
+
+					{model.type === 'TEXT' ? (
+						<div className={cx(styles.row, styles.textboxSection)}>
+							<div className={styles.labelContainer}>
+								<Typography.Text className={styles.label}>
+									Default Value
+								</Typography.Text>
+							</div>
+							<Input
+								className={styles.defaultInput}
+								value={model.textValue}
+								placeholder="Enter a default value (if any)..."
+								onChange={(e): void => set({ textValue: e.target.value })}
+								testId="variable-text-input"
+							/>
+						</div>
+					) : null}
+
+					{/* Shared rows for list-type variables */}
+					{isListType ? (
+						<>
+							<div className={cx(styles.row, styles.previewSection)}>
+								<Typography.Text className={styles.previewLabel}>
+									Preview of Values
+								</Typography.Text>
+								<div className={styles.previewValues}>
+									{previewError ? (
+										<Typography.Text className={styles.previewError}>
+											{previewError}
+										</Typography.Text>
+									) : (
+										previewValues.map((value, idx) => (
+											<Badge
+												// eslint-disable-next-line react/no-array-index-key -- preview values are display-only and may contain duplicates
+												key={`${value}-${idx}`}
+												color="vanilla"
+											>
+												{value.toString()}
+											</Badge>
+										))
+									)}
+								</div>
+							</div>
+
+							<div className={cx(styles.row, styles.sortSection)}>
+								<div className={styles.labelContainer}>
+									<Typography.Text className={styles.label}>Sort Values</Typography.Text>
+								</div>
+								<SelectSimple
+									className={styles.sortSelect}
+									value={model.sort}
+									items={VARIABLE_SORTS.map((sort) => ({
+										label: SORT_LABEL[sort],
+										value: sort,
+									}))}
+									onChange={(value): void => set({ sort: value as VariableSort })}
+									testId="variable-sort-select"
+								/>
+							</div>
+
+							<div className={cx(styles.row, styles.multiSection)}>
+								<Typography.Text className={styles.rowLabel}>
+									Enable multiple values to be checked
+								</Typography.Text>
+								<Switch
+									value={model.multiSelect}
+									onChange={(checked): void => {
+										set({
+											multiSelect: checked,
+											showAllOption: checked ? model.showAllOption : false,
+										});
+									}}
+									testId="variable-multi-switch"
+								/>
+							</div>
+
+							{model.multiSelect && showAllOptionField ? (
+								<div className={cx(styles.row, styles.allOptionSection)}>
+									<Typography.Text className={styles.rowLabel}>
+										Include an option for ALL values
+									</Typography.Text>
+									<Switch
+										value={model.showAllOption}
+										onChange={(checked): void => set({ showAllOption: checked })}
+										testId="variable-all-switch"
+									/>
+								</div>
+							) : null}
+
+							<div className={cx(styles.row, styles.defaultValueSection)}>
+								<div className={styles.labelContainer}>
+									<Typography.Text className={styles.label}>
+										Default Value
+									</Typography.Text>
+									<Typography.Text className={styles.defaultValueDesc}>
+										{model.type === 'QUERY'
+											? 'Click Test Run Query to see the values or add custom value'
+											: 'Select a value from the preview values or add custom value'}
+									</Typography.Text>
+								</div>
+								<Select
+									className={styles.searchSelect}
+									showSearch
+									allowClear
+									placeholder="Select a default value"
+									value={defaultValue || undefined}
+									onChange={(value): void => setDefaultValue(value ?? '')}
+									options={previewValues.map((value) => ({
+										label: value.toString(),
+										value: value.toString(),
+									}))}
+									data-testid="variable-default-select"
+								/>
+							</div>
+						</>
+					) : null}
+				</div>
+			</div>
+
+			<div className={styles.footer}>
+				<Button
+					variant="solid"
+					color="secondary"
+					prefix={<X size={14} />}
+					onClick={onClose}
+				>
+					Discard
+				</Button>
+				<Button
+					variant="solid"
+					color="primary"
+					prefix={<Check size={14} />}
+					disabled={!!nameError}
+					loading={isSaving}
+					onClick={handleSave}
+					testId="variable-save"
+				>
+					Save Variable
+				</Button>
+			</div>
+		</>
+	);
+}
+
+export default VariableForm;

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/VariableForm/VariableTypeSelector.tsx

@@ -0,0 +1,99 @@
+import {
+	ClipboardType,
+	DatabaseZap,
+	Info,
+	LayoutList,
+	Pyramid,
+} from '@signozhq/icons';
+import { Badge } from '@signozhq/ui/badge';
+import { Button } from '@signozhq/ui/button';
+import { Typography } from '@signozhq/ui/typography';
+import cx from 'classnames';
+import TextToolTip from 'components/TextToolTip';
+
+import type { VariableType } from '../variableModel';
+import styles from './VariableForm.module.scss';
+
+interface VariableTypeSelectorProps {
+	value: VariableType;
+	onChange: (type: VariableType) => void;
+}
+
+/** The segmented Dynamic / Textbox / Custom / Query type picker. */
+function VariableTypeSelector({
+	value,
+	onChange,
+}: VariableTypeSelectorProps): JSX.Element {
+	return (
+		<div className={cx(styles.row, styles.typeSection)}>
+			<div className={styles.typeLabelContainer}>
+				<Typography.Text className={styles.label}>Variable Type</Typography.Text>
+				<TextToolTip
+					text="Learn more about supported variable types"
+					url="https://signoz.io/docs/userguide/manage-variables/#supported-variable-types"
+					urlText="here"
+					useFilledIcon={false}
+					outlinedIcon={<Info size={14} />}
+				/>
+			</div>
+			<div className={styles.typeBtnGroup}>
+				<Button
+					variant="ghost"
+					color="secondary"
+					prefix={<Pyramid size={14} />}
+					className={cx(styles.typeBtn, {
+						[styles.typeBtnSelected]: value === 'DYNAMIC',
+					})}
+					onClick={(): void => onChange('DYNAMIC')}
+					testId="variable-type-dynamic"
+				>
+					Dynamic
+					<Badge color="robin" className={styles.betaTag}>
+						Beta
+					</Badge>
+				</Button>
+				<Button
+					variant="ghost"
+					color="secondary"
+					prefix={<ClipboardType size={14} />}
+					className={cx(styles.typeBtn, {
+						[styles.typeBtnSelected]: value === 'TEXT',
+					})}
+					onClick={(): void => onChange('TEXT')}
+					testId="variable-type-textbox"
+				>
+					Textbox
+				</Button>
+				<Button
+					variant="ghost"
+					color="secondary"
+					prefix={<LayoutList size={14} />}
+					className={cx(styles.typeBtn, {
+						[styles.typeBtnSelected]: value === 'CUSTOM',
+					})}
+					onClick={(): void => onChange('CUSTOM')}
+					testId="variable-type-custom"
+				>
+					Custom
+				</Button>
+				<Button
+					variant="ghost"
+					color="secondary"
+					prefix={<DatabaseZap size={14} />}
+					className={cx(styles.typeBtn, {
+						[styles.typeBtnSelected]: value === 'QUERY',
+					})}
+					onClick={(): void => onChange('QUERY')}
+					testId="variable-type-query"
+				>
+					Query
+					<Badge color="amber" className={styles.betaTag}>
+						Not Recommended
+					</Badge>
+				</Button>
+			</div>
+		</div>
+	);
+}
+
+export default VariableTypeSelector;

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/Variables.module.scss

@@ -0,0 +1,101 @@
+.container {
+	display: flex;
+	flex-direction: column;
+	gap: 16px;
+	padding: 20px 16px;
+}
+
+.header {
+	display: flex;
+	align-items: flex-start;
+	justify-content: space-between;
+	gap: 16px;
+}
+
+.titleRow {
+	display: flex;
+	align-items: baseline;
+	flex-wrap: wrap;
+	gap: 8px;
+}
+
+.title {
+	font-size: 14px;
+	font-weight: 500;
+	color: var(--l1-foreground);
+}
+
+.subtitle {
+	font-size: 12px;
+	color: var(--l2-foreground);
+}
+
+.empty {
+	padding: 32px;
+	text-align: center;
+	border: 1px dashed var(--l1-border);
+	border-radius: 4px;
+	color: var(--l2-foreground);
+}
+
+.list {
+	display: flex;
+	flex-direction: column;
+	gap: 8px;
+}
+
+.row {
+	display: flex;
+	align-items: center;
+	justify-content: space-between;
+	gap: 12px;
+	padding: 10px 12px;
+	border: 1px solid var(--l1-border);
+	border-radius: 4px;
+	background: var(--l1-background);
+}
+
+.rowMain {
+	display: flex;
+	align-items: center;
+	gap: 10px;
+	min-width: 0;
+}
+
+.varName {
+	font-weight: 500;
+	color: var(--l1-foreground);
+}
+
+.varDesc {
+	min-width: 0;
+	overflow: hidden;
+	font-size: 12px;
+	color: var(--l2-foreground);
+	text-overflow: ellipsis;
+	white-space: nowrap;
+}
+
+.typeTag {
+	flex-shrink: 0;
+	padding: 1px 8px;
+	font-size: 11px;
+	letter-spacing: 0.04em;
+	color: var(--l2-foreground);
+	text-transform: uppercase;
+	background: var(--l2-background);
+	border-radius: 10px;
+}
+
+.rowActions {
+	display: flex;
+	flex-shrink: 0;
+	align-items: center;
+	gap: 2px;
+}
+
+.confirmText {
+	margin-right: 4px;
+	font-size: 12px;
+	color: var(--l2-foreground);
+}

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/VariablesList.tsx

@@ -0,0 +1,139 @@
+import {
+	Check,
+	ChevronDown,
+	ChevronUp,
+	PenLine,
+	Trash2,
+	X,
+} from '@signozhq/icons';
+import { Button } from '@signozhq/ui/button';
+import { Typography } from '@signozhq/ui/typography';
+
+import type { VariableFormModel } from './variableModel';
+import styles from './Variables.module.scss';
+
+const TYPE_LABEL: Record<VariableFormModel['type'], string> = {
+	QUERY: 'Query',
+	CUSTOM: 'Custom',
+	TEXT: 'Text',
+	DYNAMIC: 'Dynamic',
+};
+
+interface VariablesListProps {
+	variables: VariableFormModel[];
+	canEdit: boolean;
+	/** Index whose delete is awaiting inline confirmation, if any. */
+	confirmingIndex: number | null;
+	onEdit: (index: number) => void;
+	onRequestDelete: (index: number) => void;
+	onConfirmDelete: (index: number) => void;
+	onCancelDelete: () => void;
+	onMove: (from: number, to: number) => void;
+}
+
+function VariablesList({
+	variables,
+	canEdit,
+	confirmingIndex,
+	onEdit,
+	onRequestDelete,
+	onConfirmDelete,
+	onCancelDelete,
+	onMove,
+}: VariablesListProps): JSX.Element {
+	return (
+		<div className={styles.list} data-testid="variables-list">
+			{variables.map((variable, index) => (
+				<div
+					className={styles.row}
+					key={variable.name || `variable-${index}`}
+					data-testid={`variable-row-${variable.name}`}
+				>
+					<div className={styles.rowMain}>
+						<Typography.Text className={styles.varName}>
+							${variable.name}
+						</Typography.Text>
+						<span className={styles.typeTag}>{TYPE_LABEL[variable.type]}</span>
+						{variable.description ? (
+							<Typography.Text className={styles.varDesc}>
+								{variable.description}
+							</Typography.Text>
+						) : null}
+					</div>
+
+					{canEdit && confirmingIndex === index ? (
+						<div className={styles.rowActions}>
+							<Typography.Text className={styles.confirmText}>Delete?</Typography.Text>
+							<Button
+								variant="ghost"
+								color="destructive"
+								size="icon"
+								onClick={(): void => onConfirmDelete(index)}
+								aria-label="Confirm delete"
+								testId={`variable-delete-confirm-${variable.name}`}
+							>
+								<Check size={14} />
+							</Button>
+							<Button
+								variant="ghost"
+								color="secondary"
+								size="icon"
+								onClick={onCancelDelete}
+								aria-label="Cancel delete"
+							>
+								<X size={14} />
+							</Button>
+						</div>
+					) : null}
+
+					{canEdit && confirmingIndex !== index ? (
+						<div className={styles.rowActions}>
+							<Button
+								variant="ghost"
+								color="secondary"
+								size="icon"
+								disabled={index === 0}
+								onClick={(): void => onMove(index, index - 1)}
+								aria-label="Move up"
+							>
+								<ChevronUp size={14} />
+							</Button>
+							<Button
+								variant="ghost"
+								color="secondary"
+								size="icon"
+								disabled={index === variables.length - 1}
+								onClick={(): void => onMove(index, index + 1)}
+								aria-label="Move down"
+							>
+								<ChevronDown size={14} />
+							</Button>
+							<Button
+								variant="ghost"
+								color="secondary"
+								size="icon"
+								onClick={(): void => onEdit(index)}
+								aria-label="Edit variable"
+								testId={`variable-edit-${variable.name}`}
+							>
+								<PenLine size={14} />
+							</Button>
+							<Button
+								variant="ghost"
+								color="secondary"
+								size="icon"
+								onClick={(): void => onRequestDelete(index)}
+								aria-label="Delete variable"
+								testId={`variable-delete-${variable.name}`}
+							>
+								<Trash2 size={14} />
+							</Button>
+						</div>
+					) : null}
+				</div>
+			))}
+		</div>
+	);
+}
+
+export default VariablesList;

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/index.tsx

@@ -0,0 +1,147 @@
+import { useEffect, useMemo, useState } from 'react';
+import { Plus } from '@signozhq/icons';
+import { Button } from '@signozhq/ui/button';
+import { Typography } from '@signozhq/ui/typography';
+import type { DashboardtypesGettableDashboardV2DTO } from 'api/generated/services/sigNoz.schemas';
+
+import { useDashboardStore } from '../../store/useDashboardStore';
+import { useSaveVariables } from './useSaveVariables';
+import { dtoToFormModel } from './variableAdapters';
+import {
+	emptyVariableFormModel,
+	type VariableFormModel,
+} from './variableModel';
+import VariableForm from './VariableForm/VariableForm';
+import VariablesList from './VariablesList';
+import styles from './Variables.module.scss';
+
+interface VariablesSettingsProps {
+	dashboard: DashboardtypesGettableDashboardV2DTO;
+}
+
+/** `null` index = adding a new variable; a number = editing that row. */
+type EditingState = { index: number | null } | null;
+
+function VariablesSettings({ dashboard }: VariablesSettingsProps): JSX.Element {
+	const isEditable = useDashboardStore((s) => s.isEditable);
+	const { save, isSaving } = useSaveVariables();
+
+	const initialModels = useMemo(
+		() => (dashboard.spec?.variables ?? []).map(dtoToFormModel),
+		[dashboard.spec?.variables],
+	);
+	const [variables, setVariables] = useState<VariableFormModel[]>(initialModels);
+
+	// Resync from the dashboard after a save round-trips (refetch bumps updatedAt).
+	useEffect(() => {
+		setVariables(initialModels);
+		// eslint-disable-next-line react-hooks/exhaustive-deps
+	}, [dashboard.updatedAt]);
+
+	const [editing, setEditing] = useState<EditingState>(null);
+	const [confirmDeleteIndex, setConfirmDeleteIndex] = useState<number | null>(
+		null,
+	);
+
+	const editingModel: VariableFormModel | null = useMemo(() => {
+		if (!editing) {
+			return null;
+		}
+		return editing.index === null
+			? emptyVariableFormModel()
+			: variables[editing.index];
+	}, [editing, variables]);
+
+	const existingNames = useMemo(() => {
+		const self = editing?.index ?? null;
+		return variables.filter((_, i) => i !== self).map((v) => v.name);
+	}, [variables, editing]);
+
+	const persist = (next: VariableFormModel[]): void => {
+		setVariables(next);
+		void save(next);
+	};
+
+	const handleFormSave = (model: VariableFormModel): void => {
+		const next = [...variables];
+		if (editing?.index == null) {
+			next.push(model);
+		} else {
+			next[editing.index] = model;
+		}
+		setEditing(null);
+		persist(next);
+	};
+
+	const handleMove = (from: number, to: number): void => {
+		if (to < 0 || to >= variables.length) {
+			return;
+		}
+		const next = [...variables];
+		const [moved] = next.splice(from, 1);
+		next.splice(to, 0, moved);
+		persist(next);
+	};
+
+	const handleConfirmDelete = (index: number): void => {
+		persist(variables.filter((_, i) => i !== index));
+		setConfirmDeleteIndex(null);
+	};
+
+	// Detail view — edit/new form replaces the list in place (no modal).
+	if (editingModel) {
+		return (
+			<VariableForm
+				initial={editingModel}
+				existingNames={existingNames}
+				isSaving={isSaving}
+				onClose={(): void => setEditing(null)}
+				onSave={handleFormSave}
+			/>
+		);
+	}
+
+	// Master view — the variables list.
+	return (
+		<div className={styles.container}>
+			<div className={styles.header}>
+				<div className={styles.titleRow}>
+					<Typography.Text className={styles.title}>Variables</Typography.Text>
+					<Typography.Text className={styles.subtitle}>
+						Define variables to parameterize panel queries.
+					</Typography.Text>
+				</div>
+				{isEditable ? (
+					<Button
+						variant="solid"
+						color="primary"
+						prefix={<Plus size={14} />}
+						onClick={(): void => setEditing({ index: null })}
+						testId="add-variable"
+					>
+						New variable
+					</Button>
+				) : null}
+			</div>
+
+			{variables.length === 0 ? (
+				<div className={styles.empty}>
+					<Typography.Text>No variables defined yet.</Typography.Text>
+				</div>
+			) : (
+				<VariablesList
+					variables={variables}
+					canEdit={isEditable}
+					confirmingIndex={confirmDeleteIndex}
+					onEdit={(index): void => setEditing({ index })}
+					onRequestDelete={(index): void => setConfirmDeleteIndex(index)}
+					onConfirmDelete={handleConfirmDelete}
+					onCancelDelete={(): void => setConfirmDeleteIndex(null)}
+					onMove={handleMove}
+				/>
+			)}
+		</div>
+	);
+}
+
+export default VariablesSettings;

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/useSaveVariables.ts

@@ -0,0 +1,51 @@
+import { useCallback, useState } from 'react';
+import { patchDashboardV2 } from 'api/generated/services/dashboard';
+import { toast } from '@signozhq/ui/sonner';
+import { useErrorModal } from 'providers/ErrorModalProvider';
+import APIError from 'types/api/error';
+
+import { useDashboardStore } from '../../store/useDashboardStore';
+import { formModelToDto } from './variableAdapters';
+import type { VariableFormModel } from './variableModel';
+import { buildVariablesPatch } from './variablePatchOps';
+
+interface UseSaveVariables {
+	save: (variables: VariableFormModel[]) => Promise<boolean>;
+	isSaving: boolean;
+}
+
+/**
+ * Persists the dashboard's variable list via a single `/spec/variables` patch,
+ * then refetches. Mirrors the General-settings save flow (patch → toast →
+ * refetch → surface errors).
+ */
+export function useSaveVariables(): UseSaveVariables {
+	const dashboardId = useDashboardStore((s) => s.dashboardId);
+	const refetch = useDashboardStore((s) => s.refetch);
+	const { showErrorModal } = useErrorModal();
+	const [isSaving, setIsSaving] = useState(false);
+
+	const save = useCallback(
+		async (variables: VariableFormModel[]): Promise<boolean> => {
+			if (!dashboardId) {
+				return false;
+			}
+			const dtos = variables.map(formModelToDto);
+			try {
+				setIsSaving(true);
+				await patchDashboardV2({ id: dashboardId }, buildVariablesPatch(dtos));
+				toast.success('Variables updated');
+				refetch();
+				return true;
+			} catch (error) {
+				showErrorModal(error as APIError);
+				return false;
+			} finally {
+				setIsSaving(false);
+			}
+		},
+		[dashboardId, refetch, showErrorModal],
+	);
+
+	return { save, isSaving };
+}

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/variableAdapters.ts

@@ -0,0 +1,153 @@
+import {
+	DashboardtypesVariableEnvelopeGithubComPersesSpecGoDashboardTextVariableSpecDTOKind as TextEnvelopeKind,
+	DashboardtypesVariableEnvelopeGithubComSigNozSignozPkgTypesDashboardtypesListVariableSpecDTOKind as ListEnvelopeKind,
+	DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesCustomVariableSpecDTOKind as CustomPluginKind,
+	DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesDynamicVariableSpecDTOKind as DynamicPluginKind,
+	DashboardtypesVariablePluginVariantGithubComSigNozSignozPkgTypesDashboardtypesQueryVariableSpecDTOKind as QueryPluginKind,
+	TelemetrytypesSignalDTO,
+} from 'api/generated/services/sigNoz.schemas';
+import type {
+	DashboardtypesListVariableSpecDTO,
+	DashboardtypesVariableDTO,
+	DashboardtypesVariablePluginDTO,
+	DashboardTextVariableSpecDTO,
+} from 'api/generated/services/sigNoz.schemas';
+
+import {
+	emptyVariableFormModel,
+	PLUGIN_KIND,
+	type TelemetrySignal,
+	type VariableFormModel,
+	type VariableSort,
+} from './variableModel';
+
+/** DTO envelope → flat form model (for display / editing). */
+export function dtoToFormModel(
+	dto: DashboardtypesVariableDTO,
+): VariableFormModel {
+	const base = emptyVariableFormModel();
+	const display = dto.spec?.display;
+	const common: VariableFormModel = {
+		...base,
+		name: dto.spec?.name ?? display?.name ?? '',
+		description: display?.description ?? '',
+	};
+
+	// Text variable — a distinct envelope (no list plugin).
+	if (dto.kind === TextEnvelopeKind.TextVariable) {
+		const spec = dto.spec as DashboardTextVariableSpecDTO;
+		return {
+			...common,
+			type: 'TEXT',
+			textValue: spec.value ?? '',
+			textConstant: spec.constant ?? false,
+		};
+	}
+
+	// List variable — Query / Custom / Dynamic, distinguished by plugin.kind.
+	const spec = dto.spec as DashboardtypesListVariableSpecDTO;
+	const listCommon: VariableFormModel = {
+		...common,
+		multiSelect: spec.allowMultiple ?? false,
+		showAllOption: spec.allowAllValue ?? false,
+		sort: (spec.sort as VariableSort) ?? 'DISABLED',
+		defaultValue: spec.defaultValue,
+	};
+	const plugin = spec.plugin;
+
+	if (plugin?.kind === CustomPluginKind['signoz/CustomVariable']) {
+		return {
+			...listCommon,
+			type: 'CUSTOM',
+			customValue: plugin.spec.customValue ?? '',
+		};
+	}
+	if (plugin?.kind === DynamicPluginKind['signoz/DynamicVariable']) {
+		return {
+			...listCommon,
+			type: 'DYNAMIC',
+			dynamicAttribute: plugin.spec.name ?? '',
+			dynamicSignal: (plugin.spec.signal as TelemetrySignal) ?? 'traces',
+		};
+	}
+	// Default to Query (also covers a query plugin or a missing/unknown plugin).
+	return {
+		...listCommon,
+		type: 'QUERY',
+		queryValue:
+			plugin?.kind === QueryPluginKind['signoz/QueryVariable']
+				? (plugin.spec.queryValue ?? '')
+				: '',
+	};
+}
+
+function buildPlugin(
+	model: VariableFormModel,
+): DashboardtypesVariablePluginDTO {
+	switch (model.type) {
+		case 'CUSTOM':
+			return {
+				kind: CustomPluginKind['signoz/CustomVariable'],
+				spec: { customValue: model.customValue },
+			};
+		case 'DYNAMIC':
+			return {
+				kind: DynamicPluginKind['signoz/DynamicVariable'],
+				spec: {
+					name: model.dynamicAttribute,
+					signal: model.dynamicSignal as TelemetrytypesSignalDTO,
+				},
+			};
+		case 'QUERY':
+		default:
+			return {
+				kind: QueryPluginKind['signoz/QueryVariable'],
+				spec: { queryValue: model.queryValue },
+			};
+	}
+}
+
+/** Flat form model → DTO envelope (for persistence). */
+export function formModelToDto(
+	model: VariableFormModel,
+): DashboardtypesVariableDTO {
+	const display = {
+		name: model.name,
+		description: model.description,
+		hidden: model.hidden,
+	};
+
+	if (model.type === 'TEXT') {
+		return {
+			kind: TextEnvelopeKind.TextVariable,
+			spec: {
+				name: model.name,
+				display,
+				value: model.textValue,
+				constant: model.textConstant,
+			},
+		};
+	}
+
+	return {
+		kind: ListEnvelopeKind.ListVariable,
+		spec: {
+			name: model.name,
+			display,
+			allowMultiple: model.multiSelect,
+			allowAllValue: model.showAllOption,
+			sort: model.sort,
+			defaultValue: model.defaultValue,
+			plugin: buildPlugin(model),
+		},
+	};
+}
+
+/** Maps the V2 plugin/envelope to the four UI-facing variable types. */
+export function variableTypeOf(
+	dto: DashboardtypesVariableDTO,
+): VariableFormModel['type'] {
+	return dtoToFormModel(dto).type;
+}
+
+export { PLUGIN_KIND };

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/variableModel.ts

@@ -0,0 +1,78 @@
+import type { VariableDefaultValueDTO } from 'api/generated/services/sigNoz.schemas';
+
+/**
+ * Flat, UI-friendly representation of a V2 dashboard variable. The wire format
+ * (`DashboardtypesVariableDTO`) is a nested envelope/plugin union that is awkward
+ * to bind a form to; `variableAdapters` converts between this model and the DTO.
+ */
+
+export type VariableType = 'QUERY' | 'CUSTOM' | 'TEXT' | 'DYNAMIC';
+
+export type VariableSort = 'DISABLED' | 'ASC' | 'DESC';
+
+export type TelemetrySignal = 'traces' | 'logs' | 'metrics';
+
+/** Wire `kind` discriminators (string values of the generated enums). */
+export const ENVELOPE_KIND = {
+	LIST: 'ListVariable',
+	TEXT: 'TextVariable',
+} as const;
+
+export const PLUGIN_KIND = {
+	QUERY: 'signoz/QueryVariable',
+	CUSTOM: 'signoz/CustomVariable',
+	DYNAMIC: 'signoz/DynamicVariable',
+} as const;
+
+export const VARIABLE_SORTS: VariableSort[] = ['DISABLED', 'ASC', 'DESC'];
+
+export const TELEMETRY_SIGNALS: TelemetrySignal[] = [
+	'traces',
+	'logs',
+	'metrics',
+];
+
+export interface VariableFormModel {
+	/** Stable identifier, referenced in queries (e.g. `$name`); must be unique. */
+	name: string;
+	description: string;
+	hidden: boolean;
+	type: VariableType;
+
+	// List-variable common fields (Query / Custom / Dynamic).
+	multiSelect: boolean;
+	showAllOption: boolean;
+	sort: VariableSort;
+
+	// Type-specific.
+	queryValue: string; // QUERY
+	customValue: string; // CUSTOM
+	textValue: string; // TEXT
+	textConstant: boolean; // TEXT
+	dynamicAttribute: string; // DYNAMIC — the telemetry field name
+	dynamicSignal: TelemetrySignal; // DYNAMIC — the telemetry signal
+
+	/**
+	 * Runtime-selected default, not editable in the management tab yet; carried
+	 * through edits so saving a definition doesn't clobber it.
+	 */
+	defaultValue?: VariableDefaultValueDTO;
+}
+
+export function emptyVariableFormModel(): VariableFormModel {
+	return {
+		name: '',
+		description: '',
+		hidden: false,
+		type: 'QUERY',
+		multiSelect: false,
+		showAllOption: false,
+		sort: 'DISABLED',
+		queryValue: '',
+		customValue: '',
+		textValue: '',
+		textConstant: false,
+		dynamicAttribute: '',
+		dynamicSignal: 'traces',
+	};
+}

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/Variables/variablePatchOps.ts

@@ -0,0 +1,22 @@
+import type {
+	DashboardtypesJSONPatchOperationDTO,
+	DashboardtypesVariableDTO,
+} from 'api/generated/services/sigNoz.schemas';
+
+/**
+ * Builds the JSON-Patch to persist the dashboard's variable list. Add/edit/
+ * delete/reorder all replace the whole `/spec/variables` array in one atomic op
+ * — simpler and race-free vs per-index patches. RFC-6902 `add` on an object
+ * member sets-or-replaces, so it works whether or not `variables` already exists.
+ */
+export function buildVariablesPatch(
+	variables: DashboardtypesVariableDTO[],
+): DashboardtypesJSONPatchOperationDTO[] {
+	return [
+		{
+			op: 'add' as DashboardtypesJSONPatchOperationDTO['op'],
+			path: '/spec/variables',
+			value: variables,
+		},
+	];
+}

frontend/src/pages/DashboardPageV2/DashboardContainer/DashboardSettings/index.tsx

@@ -1,48 +1,39 @@
 import { useMemo } from 'react';
 
 import { Braces, Globe, Table } from '@signozhq/icons';
-import { Tabs } from '@signozhq/ui/tabs';
+import { TabItemProps, Tabs } from '@signozhq/ui/tabs';
 import type { DashboardtypesGettableDashboardV2DTO } from 'api/generated/services/sigNoz.schemas';
 
 import GeneralSettings from './General';
 import { SettingsTabPlaceholder } from './utils';
-
-import styles from './DashboardSettings.module.scss';
+import VariablesSettings from './Variables';
 
 interface DashboardSettingsProps {
 	dashboard: DashboardtypesGettableDashboardV2DTO;
 }
 
-function tabLabel(icon: JSX.Element, text: string): JSX.Element {
-	return (
-		<span className={styles.tabLabel}>
-			{icon}
-			{text}
-		</span>
-	);
-}
-
 function DashboardSettings({ dashboard }: DashboardSettingsProps): JSX.Element {
-	const items = useMemo(
+	const items: TabItemProps[] = useMemo(
 		() => [
 			{
 				key: 'general',
-				label: tabLabel(<Table size={14} />, 'General'),
+				label: 'General',
 				children: <GeneralSettings dashboard={dashboard} />,
+				prefixIcon: <Table size={14} />,
 			},
 			{
 				key: 'variables',
-				label: tabLabel(<Braces size={14} />, 'Variables'),
-				children: (
-					<SettingsTabPlaceholder message="V2 dashboard variables coming next." />
-				),
+				label: 'Variables',
+				children: <VariablesSettings dashboard={dashboard} />,
+				prefixIcon: <Braces size={14} />,
 			},
 			{
 				key: 'public-dashboard',
-				label: tabLabel(<Globe size={14} />, 'Publish'),
+				label: 'Publish',
 				children: (
 					<SettingsTabPlaceholder message="V2 public dashboard publishing coming next." />
 				),
+				prefixIcon: <Globe size={14} />,
 			},
 		],
 		[dashboard],

frontend/src/pages/DashboardPageV2/DashboardContainer/patchOps.ts

@@ -4,7 +4,7 @@ import type {
 	DashboardtypesLayoutDTO,
 	DashboardtypesPanelDTO,
 } from 'api/generated/services/sigNoz.schemas';
-import { DashboardtypesJSONPatchOperationDTOOp } from 'api/generated/services/sigNoz.schemas';
+import { DashboardtypesPatchOpDTO } from 'api/generated/services/sigNoz.schemas';
 
 import type { GridItem } from './utils';
 
@@ -16,7 +16,7 @@ import type { GridItem } from './utils';
  * patches in DashboardSettings/General and DashboardDescription).
  */
 
-const { add, replace, remove } = DashboardtypesJSONPatchOperationDTOOp;
+const { add, replace, remove } = DashboardtypesPatchOpDTO;
 
 const PANEL_REF_PREFIX = '#/spec/panels/';
 

frontend/src/pages/DashboardsListPage/index.tsx

@@ -1,3 +1,15 @@
+import { useIsDashboardV2 } from 'hooks/useIsDashboardV2';
+import DashboardsListPageV2 from 'pages/DashboardsListPageV2';
+
 import DashboardsListPage from './DashboardsListPage';
 
-export default DashboardsListPage;
+// Serves the V2 dashboards list when the `use_dashboard_v2` flag is active;
+// otherwise the existing V1 list. Lets V2 dark-ship behind the flag without
+// changing route definitions.
+function DashboardsListPageEntry(): JSX.Element {
+	const isDashboardV2 = useIsDashboardV2();
+
+	return isDashboardV2 ? <DashboardsListPageV2 /> : <DashboardsListPage />;
+}
+
+export default DashboardsListPageEntry;

frontend/src/pages/DashboardsListPageV2/components/DashboardsList/DashboardsList.tsx

@@ -8,6 +8,10 @@ import {
 	createDashboardV2,
 	useListDashboardsV2,
 } from 'api/generated/services/dashboard';
+import {
+	DashboardtypesListOrderDTO,
+	DashboardtypesListSortDTO,
+} from 'api/generated/services/sigNoz.schemas';
 import ROUTES from 'constants/routes';
 import { RequestDashboardBtn } from 'container/ListOfDashboard/RequestDashboardBtn';
 import useComponentPermission from 'hooks/useComponentPermission';
@@ -24,8 +28,6 @@ import {
 	useSearch,
 	useSortColumn,
 	useSortOrder,
-	type SortColumn,
-	type SortOrder,
 } from '../../hooks/useDashboardsListQueryParams';
 import type { DashboardListItem } from '../../utils';
 import ConfigureMetadataModal from '../ConfigureMetadataModal/ConfigureMetadataModal';
@@ -131,6 +133,10 @@ function DashboardsList(): JSX.Element {
 				tags: null,
 				spec: {
 					display: { name: t('new_dashboard_title', { ns: 'dashboard' }) },
+					layouts: [],
+					panels: {},
+					variables: [],
+					// TODO(@AshwinBhatkal): duration and refresh interval need to be integrated
 				},
 			});
 			safeNavigate(
@@ -150,7 +156,7 @@ function DashboardsList(): JSX.Element {
 	}, []);
 
 	const onSortChange = useCallback(
-		(column: SortColumn): void => {
+		(column: DashboardtypesListSortDTO): void => {
 			void setSortColumn(column);
 			void setPage(1);
 		},
@@ -158,7 +164,7 @@ function DashboardsList(): JSX.Element {
 	);
 
 	const onOrderChange = useCallback(
-		(order: SortOrder): void => {
+		(order: DashboardtypesListOrderDTO): void => {
 			void setSortOrder(order);
 			void setPage(1);
 		},

frontend/src/pages/DashboardsListPageV2/components/ListHeader/ListHeader.tsx

@@ -7,18 +7,18 @@ import {
 	HdmiPort,
 } from '@signozhq/icons';
 
-import type {
-	SortColumn,
-	SortOrder,
-} from '../../hooks/useDashboardsListQueryParams';
+import {
+	DashboardtypesListOrderDTO,
+	DashboardtypesListSortDTO,
+} from 'api/generated/services/sigNoz.schemas';
 
 import styles from './ListHeader.module.scss';
 
 interface Props {
-	sortColumn: SortColumn;
-	onSortChange: (column: SortColumn) => void;
-	sortOrder: SortOrder;
-	onOrderChange: (order: SortOrder) => void;
+	sortColumn: DashboardtypesListSortDTO;
+	onSortChange: (column: DashboardtypesListSortDTO) => void;
+	sortOrder: DashboardtypesListOrderDTO;
+	onOrderChange: (order: DashboardtypesListOrderDTO) => void;
 	onConfigureMetadata: () => void;
 }
 
@@ -44,49 +44,57 @@ function ListHeader({
 								<Button
 									type="text"
 									className={styles.sortButton}
-									onClick={(): void => onSortChange('name')}
+									onClick={(): void => onSortChange(DashboardtypesListSortDTO.name)}
 									data-testid="sort-by-name"
 								>
 									Name
-									{sortColumn === 'name' && <Check size={14} />}
+									{sortColumn === DashboardtypesListSortDTO.name && <Check size={14} />}
 								</Button>
 								<Button
 									type="text"
 									className={styles.sortButton}
-									onClick={(): void => onSortChange('created_at')}
+									onClick={(): void =>
+										onSortChange(DashboardtypesListSortDTO.created_at)
+									}
 									data-testid="sort-by-last-created"
 								>
 									Last created
-									{sortColumn === 'created_at' && <Check size={14} />}
+									{sortColumn === DashboardtypesListSortDTO.created_at && (
+										<Check size={14} />
+									)}
 								</Button>
 								<Button
 									type="text"
 									className={styles.sortButton}
-									onClick={(): void => onSortChange('updated_at')}
+									onClick={(): void =>
+										onSortChange(DashboardtypesListSortDTO.updated_at)
+									}
 									data-testid="sort-by-last-updated"
 								>
 									Last updated
-									{sortColumn === 'updated_at' && <Check size={14} />}
+									{sortColumn === DashboardtypesListSortDTO.updated_at && (
+										<Check size={14} />
+									)}
 								</Button>
 								<div className={styles.sortDivider} />
 								<Typography.Text className={styles.sortHeading}>Order</Typography.Text>
 								<Button
 									type="text"
 									className={styles.sortButton}
-									onClick={(): void => onOrderChange('asc')}
+									onClick={(): void => onOrderChange(DashboardtypesListOrderDTO.asc)}
 									data-testid="sort-order-asc"
 								>
 									Ascending
-									{sortOrder === 'asc' && <Check size={14} />}
+									{sortOrder === DashboardtypesListOrderDTO.asc && <Check size={14} />}
 								</Button>
 								<Button
 									type="text"
 									className={styles.sortButton}
-									onClick={(): void => onOrderChange('desc')}
+									onClick={(): void => onOrderChange(DashboardtypesListOrderDTO.desc)}
 									data-testid="sort-order-desc"
 								>
 									Descending
-									{sortOrder === 'desc' && <Check size={14} />}
+									{sortOrder === DashboardtypesListOrderDTO.desc && <Check size={14} />}
 								</Button>
 							</div>
 						}

frontend/src/pages/DashboardsListPageV2/components/states/states.module.scss

@@ -1,5 +1,5 @@
-// Shared building blocks for the dashboards-list view states.
-// Composed via CSS-modules `composes:` from each state's own SCSS.
+/* Shared building blocks for the dashboards-list view states. */
+/* Composed via CSS-modules `composes:` from each state's own SCSS. */
 
 .cardWrapper {
 	display: flex;

frontend/src/pages/DashboardsListPageV2/hooks/useDashboardsListQueryParams.ts

@@ -1,3 +1,7 @@
+import {
+	DashboardtypesListOrderDTO,
+	DashboardtypesListSortDTO,
+} from 'api/generated/services/sigNoz.schemas';
 import {
 	parseAsInteger,
 	parseAsString,
@@ -7,26 +11,31 @@ import {
 	type UseQueryStateReturn,
 } from 'nuqs';
 
-export const SORT_COLUMNS = ['updated_at', 'created_at', 'name'] as const;
-export type SortColumn = (typeof SORT_COLUMNS)[number];
-
-export const SORT_ORDERS = ['asc', 'desc'] as const;
-export type SortOrder = (typeof SORT_ORDERS)[number];
+export const SORT_COLUMNS = Object.values(DashboardtypesListSortDTO);
+export const SORT_ORDERS = Object.values(DashboardtypesListOrderDTO);
 
 const opts: Options = { history: 'push' };
 
-export const useSortColumn = (): UseQueryStateReturn<SortColumn, SortColumn> =>
+export const useSortColumn = (): UseQueryStateReturn<
+	DashboardtypesListSortDTO,
+	DashboardtypesListSortDTO
+> =>
 	useQueryState(
 		'sort',
 		parseAsStringLiteral(SORT_COLUMNS)
-			.withDefault('updated_at')
+			.withDefault(DashboardtypesListSortDTO.updated_at)
 			.withOptions(opts),
 	);
 
-export const useSortOrder = (): UseQueryStateReturn<SortOrder, SortOrder> =>
+export const useSortOrder = (): UseQueryStateReturn<
+	DashboardtypesListOrderDTO,
+	DashboardtypesListOrderDTO
+> =>
 	useQueryState(
 		'order',
-		parseAsStringLiteral(SORT_ORDERS).withDefault('desc').withOptions(opts),
+		parseAsStringLiteral(SORT_ORDERS)
+			.withDefault(DashboardtypesListOrderDTO.desc)
+			.withOptions(opts),
 	);
 
 export const usePage = (): UseQueryStateReturn<number, number> =>

frontend/src/pages/DashboardsListPageV2/utils.ts

@@ -1,8 +1,8 @@
 import dayjs from 'dayjs';
 import { isEmpty } from 'lodash-es';
-import type { DashboardtypesGettableDashboardWithPinDTO } from 'api/generated/services/sigNoz.schemas';
+import type { DashboardtypesListedDashboardV2DTO } from 'api/generated/services/sigNoz.schemas';
 
-export type DashboardListItem = DashboardtypesGettableDashboardWithPinDTO;
+export type DashboardListItem = DashboardtypesListedDashboardV2DTO;
 
 export const tagsToStrings = (
 	tags: { key: string; value: string }[] | null | undefined,

frontend/src/pages/ResetPassword/__tests__/ResetPasswordPage.test.tsx

@@ -2,7 +2,7 @@ import { Logout } from 'api/utils';
 import ROUTES from 'constants/routes';
 import history from 'lib/history';
 import { createErrorResponse, rest, server } from 'mocks-server/server';
-import { render, screen, waitFor } from 'tests/test-utils';
+import { render, screen, waitFor, fireEvent } from 'tests/test-utils';
 
 import ResetPassword from '../index';
 
@@ -103,6 +103,7 @@ describe('ResetPassword Page', () => {
 			expect(
 				screen.getByText(/reset password token does not exist/i),
 			).toBeInTheDocument();
+			expect(screen.getByTestId('back-to-login')).toBeInTheDocument();
 		});
 
 		it('shows "token is expired" when token is expired (401) without redirecting to login', async () => {
@@ -137,6 +138,32 @@ describe('ResetPassword Page', () => {
 			// 401 from this endpoint must NOT trigger logout/redirect
 			expect(mockHistoryPush).not.toHaveBeenCalledWith(ROUTES.LOGIN);
 			expect(Logout).not.toHaveBeenCalled();
+			expect(screen.getByTestId('back-to-login')).toBeInTheDocument();
+		});
+
+		it('navigates to login when "Back to login" is clicked on error screen', async () => {
+			server.use(
+				rest.post(
+					VERIFY_TOKEN_ENDPOINT,
+					createErrorResponse(
+						404,
+						'reset_password_token_not_found',
+						'reset password token does not exist',
+					),
+				),
+			);
+
+			window.history.pushState({}, '', '/password-reset?token=invalid-token');
+			render(<ResetPassword />, undefined, {
+				initialRoute: '/password-reset?token=invalid-token',
+			});
+
+			await waitFor(() => {
+				expect(screen.getByTestId('back-to-login')).toBeInTheDocument();
+			});
+
+			fireEvent.click(screen.getByTestId('back-to-login'));
+			expect(mockHistoryPush).toHaveBeenCalledWith(ROUTES.LOGIN);
 		});
 
 		it('redirects to login when no token is in the URL', async () => {

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/TraceFlamegraph.tsx

@@ -1,7 +1,7 @@
 import { useCallback, useEffect, useMemo, useState } from 'react';
 import { useHistory, useLocation, useParams } from 'react-router-dom';
 import { Skeleton } from 'antd';
-import useGetTraceFlamegraph from 'hooks/trace/useGetTraceFlamegraph';
+import useGetTraceFlamegraphV3 from 'hooks/trace/useGetTraceFlamegraphV3';
 import useUrlQuery from 'hooks/useUrlQuery';
 import { TraceDetailFlamegraphURLProps } from 'types/api/trace/getTraceFlamegraph';
 import { SpanV3 } from 'types/api/trace/getTraceV3';
@@ -53,6 +53,9 @@ function TraceFlamegraph({
 	);
 
 	const previewFields = useTraceStore((s) => s.previewFields);
+	// Gate the fetch until prefs load, else selectFields (in the query key)
+	// repopulates and triggers a second fetch.
+	const userPrefsReady = useTraceStore((s) => s.userPreferences !== null);
 
 	// Color-by fields baseline + user-picked preview fields. De-duped by `name`,
 	// color-by entries first so their canonical metadata wins on collision.
@@ -70,17 +73,14 @@ function TraceFlamegraph({
 		data,
 		isFetching,
 		error: fetchError,
-	} = useGetTraceFlamegraph({
+	} = useGetTraceFlamegraphV3({
 		traceId,
 		selectedSpanId: selectedSpanIdForFetch,
-		limit: FLAMEGRAPH_SPAN_LIMIT,
 		selectFields: flamegraphSelectFields,
+		enabled: !!traceId && userPrefsReady,
 	});
 
-	const spans = useMemo(
-		() => data?.payload?.spans || [],
-		[data?.payload?.spans],
-	);
+	const spans = useMemo(() => data?.spans || [], [data?.spans]);
 
 	const {
 		layout,
@@ -99,8 +99,8 @@ function TraceFlamegraph({
 						setFirstSpanAtFetchLevel={setFirstSpanAtFetchLevel}
 						onSpanClick={handleSpanClick}
 						traceMetadata={{
-							startTime: data?.payload?.startTimestampMillis || 0,
-							endTime: data?.payload?.endTimestampMillis || 0,
+							startTime: data?.startTimestampMillis || 0,
+							endTime: data?.endTimestampMillis || 0,
 						}}
 						filteredSpanIds={filteredSpanIds}
 						isFilterActive={isFilterActive}
@@ -124,7 +124,7 @@ function TraceFlamegraph({
 		if (fetchError || workerError) {
 			return <Error error={(fetchError || workerError) as any} />;
 		}
-		if (data?.payload?.spans && data.payload.spans.length === 0) {
+		if (data?.spans && data.spans.length === 0) {
 			return <div>No data found for trace {traceId}</div>;
 		}
 		return (
@@ -134,17 +134,17 @@ function TraceFlamegraph({
 				setFirstSpanAtFetchLevel={setFirstSpanAtFetchLevel}
 				onSpanClick={handleSpanClick}
 				traceMetadata={{
-					startTime: data?.payload?.startTimestampMillis || 0,
-					endTime: data?.payload?.endTimestampMillis || 0,
+					startTime: data?.startTimestampMillis || 0,
+					endTime: data?.endTimestampMillis || 0,
 				}}
 				filteredSpanIds={filteredSpanIds}
 				isFilterActive={isFilterActive}
 			/>
 		);
 	}, [
-		data?.payload?.endTimestampMillis,
-		data?.payload?.startTimestampMillis,
-		data?.payload?.spans,
+		data?.endTimestampMillis,
+		data?.startTimestampMillis,
+		data?.spans,
 		fetchError,
 		filteredSpanIds,
 		firstSpanAtFetchLevel,

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/TraceFlamegraph.test.tsx

@@ -1,12 +1,12 @@
 import { render } from '@testing-library/react';
-import useGetTraceFlamegraph from 'hooks/trace/useGetTraceFlamegraph';
+import useGetTraceFlamegraphV3 from 'hooks/trace/useGetTraceFlamegraphV3';
 import { AllTheProviders } from 'tests/test-utils';
 import { SpanV3 } from 'types/api/trace/getTraceV3';
 
 import { FLAMEGRAPH_SPAN_LIMIT } from '../constants';
 import TraceFlamegraph from '../TraceFlamegraph';
 
-jest.mock('hooks/trace/useGetTraceFlamegraph');
+jest.mock('hooks/trace/useGetTraceFlamegraphV3');
 
 // Short-circuit the worker so the test doesn't depend on layout computation.
 jest.mock('../hooks/useVisualLayoutWorker', () => ({
@@ -17,9 +17,8 @@ jest.mock('../hooks/useVisualLayoutWorker', () => ({
 	}),
 }));
 
-const mockUseGetTraceFlamegraph = useGetTraceFlamegraph as jest.MockedFunction<
-	typeof useGetTraceFlamegraph
->;
+const mockUseGetTraceFlamegraph =
+	useGetTraceFlamegraphV3 as jest.MockedFunction<typeof useGetTraceFlamegraphV3>;
 
 function renderFlamegraph(props: {
 	selectedSpan: SpanV3 | undefined;
@@ -45,7 +44,7 @@ describe('TraceFlamegraph - selectedSpanId pass-through', () => {
 	beforeEach(() => {
 		mockUseGetTraceFlamegraph.mockReset();
 		mockUseGetTraceFlamegraph.mockReturnValue({
-			data: { payload: { spans: [] } },
+			data: { spans: [] },
 			isFetching: false,
 			error: null,
 		} as never);

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/computeVisualLayout.test.ts

@@ -1,4 +1,4 @@
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 
 import {
 	computeVisualLayout,
@@ -14,12 +14,12 @@ function makeSpan(
 ): FlamegraphSpan {
 	return {
 		parentSpanId: '',
-		traceId: 'trace-1',
 		hasError: false,
-		serviceName: 'svc',
 		name: 'op',
 		level: 0,
 		event: [],
+		resource: {},
+		attributes: {},
 		...overrides,
 	};
 }

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/testUtils.ts

@@ -1,4 +1,4 @@
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 
 /** Minimal FlamegraphSpan for unit tests */
 export const MOCK_SPAN: FlamegraphSpan = {
@@ -6,12 +6,12 @@ export const MOCK_SPAN: FlamegraphSpan = {
 	durationNano: 50_000_000, // 50ms
 	spanId: 'span-1',
 	parentSpanId: '',
-	traceId: 'trace-1',
 	hasError: false,
-	serviceName: 'test-service',
 	name: 'test-span',
 	level: 0,
 	event: [],
+	resource: {},
+	attributes: {},
 };
 
 /** Nested spans structure for findSpanById tests */

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/utils.presentation.test.ts

@@ -65,37 +65,25 @@ describe('Presentation / Styling Utils', () => {
 	describe('getFlamegraphSpanGroupValue', () => {
 		it('returns resource[field.name] when present', () => {
 			const value = getFlamegraphSpanGroupValue(
-				{
-					serviceName: 'legacy',
-					resource: { 'service.name': 'svc-from-resource' },
-				},
+				{ resource: { 'service.name': 'svc-from-resource' } },
 				SERVICE_FIELD,
 			);
 			expect(value).toBe('svc-from-resource');
 		});
 
-		it('falls back to top-level serviceName for service.name when resource is empty', () => {
-			const value = getFlamegraphSpanGroupValue(
-				{ serviceName: 'svc-legacy', resource: {} },
-				SERVICE_FIELD,
-			);
-			expect(value).toBe('svc-legacy');
+		it('returns "unknown" for service.name when resource is empty', () => {
+			const value = getFlamegraphSpanGroupValue({ resource: {} }, SERVICE_FIELD);
+			expect(value).toBe('unknown');
 		});
 
 		it('returns "unknown" for non-service fields when resource is missing', () => {
-			const value = getFlamegraphSpanGroupValue(
-				{ serviceName: 'svc', resource: {} },
-				HOST_FIELD,
-			);
+			const value = getFlamegraphSpanGroupValue({ resource: {} }, HOST_FIELD);
 			expect(value).toBe('unknown');
 		});
 
 		it('reads host.name from resource when present', () => {
 			const value = getFlamegraphSpanGroupValue(
-				{
-					serviceName: 'svc',
-					resource: { 'host.name': 'host-1' },
-				},
+				{ resource: { 'host.name': 'host-1' } },
 				HOST_FIELD,
 			);
 			expect(value).toBe('host-1');

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/computeVisualLayout.ts

@@ -1,11 +1,10 @@
 /* eslint-disable sonarjs/cognitive-complexity */
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 
 export interface ConnectorLine {
 	parentRow: number;
 	childRow: number;
 	timestampMs: number;
-	serviceName: string;
 	// Snapshot of the child span's resource so draw-time can resolve the
 	// `colorByField` group value without crossing the worker boundary.
 	resource?: Record<string, string>;
@@ -159,24 +158,8 @@ export function computeVisualLayout(spans: FlamegraphSpan[][]): VisualLayout {
 		}
 	}
 
-	// Extract parentSpanId — the field may be missing at runtime when the API
-	// returns `references` instead.  Fall back to the first CHILD_OF reference.
 	function getParentId(span: FlamegraphSpan): string {
-		if (span.parentSpanId) {
-			return span.parentSpanId;
-		}
-		// eslint-disable-next-line @typescript-eslint/no-explicit-any
-		const refs = (span as any).references as
-			| Array<{ spanId?: string; refType?: string }>
-			| undefined;
-		if (refs) {
-			for (const ref of refs) {
-				if (ref.refType === 'CHILD_OF' && ref.spanId) {
-					return ref.spanId;
-				}
-			}
-		}
-		return '';
+		return span.parentSpanId || '';
 	}
 
 	// Build children map and identify roots
@@ -480,7 +463,6 @@ export function computeVisualLayout(spans: FlamegraphSpan[][]): VisualLayout {
 				parentRow,
 				childRow,
 				timestampMs: child.timestamp,
-				serviceName: child.serviceName,
 				resource: child.resource,
 			});
 		}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useFlamegraphDraw.ts

@@ -1,7 +1,7 @@
 import React, { RefObject, useCallback, useMemo, useRef } from 'react';
 import { generateColorPair } from 'pages/TraceDetailsV3/utils/generateColorPair';
 import { useTraceStore } from 'pages/TraceDetailsV3/stores/traceStore';
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 import { TelemetryFieldKey } from 'types/api/v5/queryRange';
 
 import { ConnectorLine } from '../computeVisualLayout';
@@ -200,7 +200,7 @@ function drawConnectorLines(args: DrawConnectorLinesArgs): void {
 		}
 
 		const groupValue = getFlamegraphSpanGroupValue(
-			{ serviceName: conn.serviceName, resource: conn.resource },
+			{ resource: conn.resource },
 			colorByField,
 		);
 		const pair = generateColorPair(groupValue);

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useFlamegraphHover.ts

@@ -11,10 +11,9 @@ import {
 import { useTraceStore } from 'pages/TraceDetailsV3/stores/traceStore';
 import { RESERVED_PREVIEW_KEYS } from 'pages/TraceDetailsV3/SpanHoverCard/SpanHoverCard';
 import { getSpanAttribute } from 'pages/TraceDetailsV3/utils';
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 
-import { EventRect, SpanRect } from '../types';
-import { ITraceMetadata } from '../types';
+import { EventRect, ITraceMetadata, SpanRect } from '../types';
 import {
 	getFlamegraphServiceName,
 	getFlamegraphSpanGroupValue,
@@ -200,7 +199,7 @@ export function useFlamegraphHover(
 
 			if (eventRect) {
 				const { event, span } = eventRect;
-				const eventTimeMs = event.timeUnixNano / 1e6;
+				const eventTimeMs = (event.timeUnixNano ?? 0) / 1e6;
 				setHoveredEventKey(`${span.spanId}-${event.name}-${event.timeUnixNano}`);
 				setHoveredSpanId(span.spanId);
 				setTooltipContent({
@@ -220,10 +219,10 @@ export function useFlamegraphHover(
 						return isDarkMode ? pair.color : pair.colorDark;
 					})(),
 					event: {
-						name: event.name,
+						name: event.name ?? '',
 						timeOffsetMs: eventTimeMs - span.timestamp,
-						isError: event.isError,
-						attributeMap: event.attributeMap || {},
+						isError: event.isError ?? false,
+						attributeMap: (event.attributeMap as Record<string, string>) ?? {},
 					},
 				});
 				updateCursor(canvas, eventRect.span);

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useScrollToSpan.ts

@@ -5,7 +5,7 @@ import {
 	SetStateAction,
 	useEffect,
 } from 'react';
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 
 import { MIN_VISIBLE_SPAN_MS } from '../constants';
 import { ITraceMetadata } from '../types';

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useVisualLayoutWorker.ts

@@ -1,5 +1,5 @@
 import { useEffect, useRef, useState } from 'react';
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 
 import { computeVisualLayout, VisualLayout } from '../computeVisualLayout';
 import { LayoutWorkerResponse } from '../visualLayoutWorkerTypes';

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/types.ts

@@ -1,5 +1,8 @@
+import {
+	SpantypesEventDTO as FlamegraphEvent,
+	SpantypesFlamegraphSpanDTO as FlamegraphSpan,
+} from 'api/generated/services/sigNoz.schemas';
 import { Dispatch, SetStateAction } from 'react';
-import { Event, FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
 
 import { VisualLayout } from './computeVisualLayout';
 
@@ -28,7 +31,7 @@ export interface SpanRect {
 }
 
 export interface EventRect {
-	event: Event;
+	event: FlamegraphEvent;
 	span: FlamegraphSpan;
 	cx: number;
 	cy: number;

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/utils.ts

@@ -7,7 +7,7 @@ import {
 	generateColorPair,
 	RESERVED_ERROR,
 } from 'pages/TraceDetailsV3/utils/generateColorPair';
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 import { TelemetryFieldKey } from 'types/api/v5/queryRange';
 
 import {
@@ -74,34 +74,25 @@ export function getFlamegraphRowMetrics(
 
 /**
  * Resolve the displayed service.name for a flamegraph span. Used by tooltips
- * (service identity, independent of the active colour-by field). Prefers
- * `resource['service.name']` with legacy top-level `serviceName` fallback.
+ * (service identity, independent of the active colour-by field). Reads
+ * `resource['service.name']`.
  */
 export function getFlamegraphServiceName(
-	span: Pick<FlamegraphSpan, 'serviceName' | 'resource' | 'attributes'>,
+	span: Partial<Pick<FlamegraphSpan, 'resource' | 'attributes'>>,
 ): string {
-	return getSpanAttribute(span, 'service.name') || span.serviceName || '';
+	return getSpanAttribute(span, 'service.name') || '';
 }
 
 /**
  * Resolve the value used to bucket a flamegraph span by colour for the given
- * field. Prefers `resource[field.name]` (new contract from `selectFields`).
- * For `service.name`, falls back to the legacy top-level `serviceName` when
- * resource is empty (backward-compat with backends that haven't shipped
- * `selectFields` yet). For other fields, falls back to `'unknown'`.
+ * field. Prefers `resource[field.name]` (contract from `selectFields`), falling
+ * back to `'unknown'`.
  */
 export function getFlamegraphSpanGroupValue(
-	span: Pick<FlamegraphSpan, 'serviceName' | 'resource' | 'attributes'>,
+	span: Partial<Pick<FlamegraphSpan, 'resource' | 'attributes'>>,
 	field: TelemetryFieldKey,
 ): string {
-	const fromAttribute = getSpanAttribute(span, field.name);
-	if (fromAttribute) {
-		return fromAttribute;
-	}
-	if (field.name === 'service.name') {
-		return span.serviceName || 'unknown';
-	}
-	return 'unknown';
+	return getSpanAttribute(span, field.name) || 'unknown';
 }
 
 interface GetSpanColorArgs {
@@ -296,7 +287,7 @@ export function drawSpanBar(args: DrawSpanBarArgs): void {
 			return;
 		}
 
-		const eventTimeMs = event.timeUnixNano / 1e6;
+		const eventTimeMs = (event.timeUnixNano ?? 0) / 1e6;
 		const eventOffsetPercent =
 			((eventTimeMs - span.timestamp) / spanDurationMs) * 100;
 		const clampedOffset = clamp(eventOffsetPercent, 1, 99);
@@ -306,7 +297,11 @@ export function drawSpanBar(args: DrawSpanBarArgs): void {
 		// Event dots derive from the effective bar color so they track the
 		// light/dark variant the bar is rendered with.
 		const parentBarColor = isDarkMode ? color : colorDark;
-		const dotColor = getEventDotColor(parentBarColor, event.isError, isDarkMode);
+		const dotColor = getEventDotColor(
+			parentBarColor,
+			event.isError ?? false,
+			isDarkMode,
+		);
 		const eventKey = `${span.spanId}-${event.name}-${event.timeUnixNano}`;
 		const isEventHovered = hoveredEventKey === eventKey;
 		const dotSize = isEventHovered

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/visualLayoutWorkerTypes.ts

@@ -1,4 +1,4 @@
-import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+import { SpantypesFlamegraphSpanDTO as FlamegraphSpan } from 'api/generated/services/sigNoz.schemas';
 
 import { VisualLayout } from './computeVisualLayout';
 

frontend/src/providers/QueryBuilder.tsx

@@ -38,9 +38,11 @@ import { useGetCompositeQueryParam } from 'hooks/queryBuilder/useGetCompositeQue
 import { updateStepInterval } from 'hooks/queryBuilder/useStepInterval';
 import { useSafeNavigate } from 'hooks/useSafeNavigate';
 import useUrlQuery from 'hooks/useUrlQuery';
+import { serialize } from 'lib/compositeQuery/serializer';
 import { createIdFromObjectFields } from 'lib/createIdFromObjectFields';
 import { createNewBuilderItemName } from 'lib/newQueryBuilder/createNewBuilderItemName';
 import { getOperatorsBySourceAndPanelType } from 'lib/newQueryBuilder/getOperatorsBySourceAndPanelType';
+import { saveRecentQuery } from 'lib/recentQueries/saveRecentQuery';
 import { replaceIncorrectObjectFields } from 'lib/replaceIncorrectObjectFields';
 import { cloneDeep, get, isEqual, set } from 'lodash-es';
 import { BaseAutocompleteData } from 'types/api/queryBuilder/queryAutocompleteResponse';
@@ -935,7 +937,7 @@ export function QueryBuilderProvider({
 	);
 
 	const { safeNavigate } = useSafeNavigate({
-		preventSameUrlNavigation: false,
+		preventSameUrlNavigation: true,
 	});
 
 	const redirectWithQueryBuilderData = useCallback(
@@ -989,10 +991,7 @@ export function QueryBuilderProvider({
 				);
 			}
 
-			urlQuery.set(
-				QueryParams.compositeQuery,
-				encodeURIComponent(JSON.stringify(currentGeneratedQuery)),
-			);
+			urlQuery.set(QueryParams.compositeQuery, serialize(currentGeneratedQuery));
 
 			if (searchParams) {
 				Object.keys(searchParams).forEach((param) =>
@@ -1031,6 +1030,8 @@ export function QueryBuilderProvider({
 		if (isExplorer) {
 			setCalledFromHandleRunQuery(true);
 		}
+		saveRecentQuery(currentQuery);
+
 		const currentQueryData = {
 			...currentQuery,
 			builder: {

frontend/src/providers/Timezone.tsx

@@ -19,17 +19,14 @@ import {
 } from 'components/CustomTimePicker/timezoneUtils';
 import { LOCALSTORAGE } from 'constants/localStorage';
 import useTimezoneFormatter, {
-	TimestampInput,
+	FormatTimezoneAdjustedTimestamp,
 } from 'hooks/useTimezoneFormatter/useTimezoneFormatter';
 
 export interface TimezoneContextType {
 	timezone: Timezone;
 	browserTimezone: Timezone;
 	updateTimezone: (timezone: Timezone) => void;
-	formatTimezoneAdjustedTimestamp: (
-		input: TimestampInput,
-		format?: string,
-	) => string;
+	formatTimezoneAdjustedTimestamp: FormatTimezoneAdjustedTimestamp;
 	isAdaptationEnabled: boolean;
 	setIsAdaptationEnabled: Dispatch<SetStateAction<boolean>>;
 }

frontend/src/utils/timeUtils.ts

@@ -2,6 +2,7 @@ import { DATE_TIME_FORMATS } from 'constants/dateTimeFormats';
 import dayjs from 'dayjs';
 import customParseFormat from 'dayjs/plugin/customParseFormat';
 import duration from 'dayjs/plugin/duration';
+import relativeTime from 'dayjs/plugin/relativeTime';
 import timezone from 'dayjs/plugin/timezone';
 import utc from 'dayjs/plugin/utc';
 
@@ -9,6 +10,7 @@ dayjs.extend(utc);
 dayjs.extend(customParseFormat);
 dayjs.extend(duration);
 dayjs.extend(timezone);
+dayjs.extend(relativeTime);
 
 export function toUTCEpoch(time: number): number {
 	const x = new Date();