docs(contributing): note MustNewUUID for IDs from claims

Claims come from validated auth context, so the org UUID is guaranteed
valid; drop the dead NewUUID error branch.

docs/api/openapi.yml

@@ -12790,6 +12790,53 @@ paths:
       summary: Update a span mapper
       tags:
       - spanmapper
+  /api/v1/stats:
+    get:
+      deprecated: false
+      description: This endpoint returns the collected stats for the organization
+      operationId: GetStats
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                properties:
+                  data:
+                    additionalProperties: {}
+                    type: object
+                  status:
+                    type: string
+                required:
+                - status
+                - data
+                type: object
+          description: OK
+        "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: Get stats
+      tags:
+      - stats
   /api/v1/testChannel:
     post:
       deprecated: true

docs/contributing/go/handler.md

@@ -109,6 +109,20 @@ func (h *handler) CreateThing(rw http.ResponseWriter, req *http.Request) {
 }
 ```
 
+When you need an ID from `claims` as a `valuer.UUID` (for example to pass it to a module), derive it with the `Must*` constructor instead of `NewUUID` plus an error check. Claims are validated by the auth middleware, so the conversion cannot fail and the error branch would be dead code:
+
+```go
+// Good — claims are pre-validated, the conversion cannot fail.
+orgID := valuer.MustNewUUID(claims.OrgID)
+
+// Avoid — the error path is unreachable.
+orgID, err := valuer.NewUUID(claims.OrgID)
+if err != nil {
+    render.Error(rw, err)
+    return
+}
+```
+
 ### 3. Register the handler in `signozapiserver`
 
 In `pkg/apiserver/signozapiserver`, add a route in the appropriate `add*Routes` function (`addUserRoutes`, `addSessionRoutes`, `addOrgRoutes`, etc.). The pattern is:
@@ -387,3 +401,4 @@ Note the discriminator property lives in the variants, not on the parent — the
 - **Add `nullable:"true"`** on fields that can be `null`. Pay special attention to slices and maps -- in Go these default to `nil` which serializes to `null`. If the field should always be an array, initialize it and do not mark it nullable.
 - **Implement `Enum()`** on every type that has a fixed set of acceptable values so the JSON schema generates proper `enum` constraints.
 - **Add request examples** via `RequestExamples` in `OpenAPIDef` for any non-trivial endpoint. See `pkg/apiserver/signozapiserver/querier.go` for reference.
+- **Derive IDs from `claims` with `valuer.MustNewUUID`** (e.g. `claims.OrgID`, `claims.UserID`). Claims are pre-validated by the auth middleware, so use the `Must*` constructor — don't write `NewUUID` followed by an `if err != nil { render.Error(...); return }` block.

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

@@ -9746,6 +9746,19 @@ export type UpdateSpanMapperPathParameters = {
 	groupId: string;
 	mapperId: string;
 };
+export type GetStats200Data = { [key: string]: unknown };
+
+export type GetStats200 = {
+	/**
+	 * @type object
+	 */
+	data: GetStats200Data;
+	/**
+	 * @type string
+	 */
+	status: string;
+};
+
 export type GetTraceAggregationsPathParameters = {
 	traceID: string;
 };

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

@@ -0,0 +1,96 @@
+/**
+ * ! Do not edit manually
+ * * The file has been auto-generated using Orval for SigNoz
+ * * regenerate with 'pnpm generate:api'
+ * SigNoz
+ */
+import { useQuery } from 'react-query';
+import type {
+	InvalidateOptions,
+	QueryClient,
+	QueryFunction,
+	QueryKey,
+	UseQueryOptions,
+	UseQueryResult,
+} from 'react-query';
+
+import type { GetStats200, RenderErrorResponseDTO } from '../sigNoz.schemas';
+
+import { GeneratedAPIInstance } from '../../../generatedAPIInstance';
+import type { ErrorType } from '../../../generatedAPIInstance';
+
+/**
+ * This endpoint returns the collected stats for the organization
+ * @summary Get stats
+ */
+export const getStats = (signal?: AbortSignal) => {
+	return GeneratedAPIInstance<GetStats200>({
+		url: `/api/v1/stats`,
+		method: 'GET',
+		signal,
+	});
+};
+
+export const getGetStatsQueryKey = () => {
+	return [`/api/v1/stats`] as const;
+};
+
+export const getGetStatsQueryOptions = <
+	TData = Awaited<ReturnType<typeof getStats>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(options?: {
+	query?: UseQueryOptions<Awaited<ReturnType<typeof getStats>>, TError, TData>;
+}) => {
+	const { query: queryOptions } = options ?? {};
+
+	const queryKey = queryOptions?.queryKey ?? getGetStatsQueryKey();
+
+	const queryFn: QueryFunction<Awaited<ReturnType<typeof getStats>>> = ({
+		signal,
+	}) => getStats(signal);
+
+	return { queryKey, queryFn, ...queryOptions } as UseQueryOptions<
+		Awaited<ReturnType<typeof getStats>>,
+		TError,
+		TData
+	> & { queryKey: QueryKey };
+};
+
+export type GetStatsQueryResult = NonNullable<
+	Awaited<ReturnType<typeof getStats>>
+>;
+export type GetStatsQueryError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Get stats
+ */
+
+export function useGetStats<
+	TData = Awaited<ReturnType<typeof getStats>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(options?: {
+	query?: UseQueryOptions<Awaited<ReturnType<typeof getStats>>, TError, TData>;
+}): UseQueryResult<TData, TError> & { queryKey: QueryKey } {
+	const queryOptions = getGetStatsQueryOptions(options);
+
+	const query = useQuery(queryOptions) as UseQueryResult<TData, TError> & {
+		queryKey: QueryKey;
+	};
+
+	return { ...query, queryKey: queryOptions.queryKey };
+}
+
+/**
+ * @summary Get stats
+ */
+export const invalidateGetStats = async (
+	queryClient: QueryClient,
+	options?: InvalidateOptions,
+): Promise<QueryClient> => {
+	await queryClient.invalidateQueries(
+		{ queryKey: getGetStatsQueryKey() },
+		options,
+	);
+
+	return queryClient;
+};

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/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/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/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';
 

pkg/apiserver/signozapiserver/provider.go

@@ -31,6 +31,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/modules/user"
 	"github.com/SigNoz/signoz/pkg/querier"
 	"github.com/SigNoz/signoz/pkg/ruler"
+	"github.com/SigNoz/signoz/pkg/statsreporter"
 	"github.com/SigNoz/signoz/pkg/types"
 	"github.com/SigNoz/signoz/pkg/types/authtypes"
 	"github.com/SigNoz/signoz/pkg/zeus"
@@ -70,6 +71,7 @@ type provider struct {
 	traceDetailHandler      tracedetail.Handler
 	rulerHandler            ruler.Handler
 	llmPricingRuleHandler   llmpricingrule.Handler
+	statsHandler            statsreporter.Handler
 }
 
 func NewFactory(
@@ -102,6 +104,7 @@ func NewFactory(
 	llmPricingRuleHandler llmpricingrule.Handler,
 	traceDetailHandler tracedetail.Handler,
 	rulerHandler ruler.Handler,
+	statsHandler statsreporter.Handler,
 ) factory.ProviderFactory[apiserver.APIServer, apiserver.Config] {
 	return factory.NewProviderFactory(factory.MustNewName("signoz"), func(ctx context.Context, providerSettings factory.ProviderSettings, config apiserver.Config) (apiserver.APIServer, error) {
 		return newProvider(
@@ -137,6 +140,7 @@ func NewFactory(
 			llmPricingRuleHandler,
 			traceDetailHandler,
 			rulerHandler,
+			statsHandler,
 		)
 	})
 }
@@ -174,6 +178,7 @@ func newProvider(
 	llmPricingRuleHandler llmpricingrule.Handler,
 	traceDetailHandler tracedetail.Handler,
 	rulerHandler ruler.Handler,
+	statsHandler statsreporter.Handler,
 ) (apiserver.APIServer, error) {
 	settings := factory.NewScopedProviderSettings(providerSettings, "github.com/SigNoz/signoz/pkg/apiserver/signozapiserver")
 	router := mux.NewRouter().UseEncodedPath()
@@ -210,6 +215,7 @@ func newProvider(
 		traceDetailHandler:      traceDetailHandler,
 		rulerHandler:            rulerHandler,
 		llmPricingRuleHandler:   llmPricingRuleHandler,
+		statsHandler:            statsHandler,
 	}
 
 	provider.authzMiddleware = middleware.NewAuthZ(settings.Logger(), orgGetter, authzService)
@@ -334,6 +340,10 @@ func (provider *provider) AddToRouter(router *mux.Router) error {
 		return err
 	}
 
+	if err := provider.addStatsReporterRoutes(router); err != nil {
+		return err
+	}
+
 	return nil
 }
 

pkg/apiserver/signozapiserver/statsreporter.go

@@ -0,0 +1,33 @@
+package signozapiserver
+
+import (
+	"net/http"
+
+	"github.com/SigNoz/signoz/pkg/http/handler"
+	"github.com/SigNoz/signoz/pkg/types"
+	"github.com/gorilla/mux"
+)
+
+func (provider *provider) addStatsReporterRoutes(router *mux.Router) error {
+	if err := router.Handle("/api/v1/stats", handler.New(
+		provider.authzMiddleware.ViewAccess(provider.statsHandler.Get),
+		handler.OpenAPIDef{
+			ID:                  "GetStats",
+			Tags:                []string{"stats"},
+			Summary:             "Get stats",
+			Description:         "This endpoint returns the collected stats for the organization",
+			Request:             nil,
+			RequestContentType:  "",
+			Response:            map[string]any{},
+			ResponseContentType: "application/json",
+			SuccessStatusCode:   http.StatusOK,
+			ErrorStatusCodes:    []int{},
+			Deprecated:          false,
+			SecuritySchemes:     newSecuritySchemes(types.RoleViewer),
+		},
+	)).Methods(http.MethodGet).GetError(); err != nil {
+		return err
+	}
+
+	return nil
+}

pkg/flagger/handler.go

@@ -35,11 +35,7 @@ func (handler *handler) GetFeatures(rw http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	orgID, err := valuer.NewUUID(claims.OrgID)
-	if err != nil {
-		render.Error(rw, err)
-		return
-	}
+	orgID := valuer.MustNewUUID(claims.OrgID)
 
 	evalCtx := featuretypes.NewFlaggerEvaluationContext(orgID)
 

pkg/modules/inframonitoring/implinframonitoring/module.go

@@ -10,7 +10,9 @@ import (
 	"github.com/SigNoz/signoz/pkg/querier"
 	"github.com/SigNoz/signoz/pkg/telemetrymetrics"
 	"github.com/SigNoz/signoz/pkg/telemetrystore"
+	"github.com/SigNoz/signoz/pkg/types/ctxtypes"
 	"github.com/SigNoz/signoz/pkg/types/inframonitoringtypes"
+	"github.com/SigNoz/signoz/pkg/types/instrumentationtypes"
 	qbtypes "github.com/SigNoz/signoz/pkg/types/querybuildertypes/querybuildertypesv5"
 	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
 	"github.com/SigNoz/signoz/pkg/valuer"
@@ -48,6 +50,8 @@ func NewModule(
 }
 
 func (m *module) ListHosts(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableHosts) (*inframonitoringtypes.Hosts, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListHosts")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -161,6 +165,8 @@ func (m *module) ListHosts(ctx context.Context, orgID valuer.UUID, req *inframon
 }
 
 func (m *module) ListPods(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostablePods) (*inframonitoringtypes.Pods, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListPods")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -244,6 +250,8 @@ func (m *module) ListPods(ctx context.Context, orgID valuer.UUID, req *inframoni
 }
 
 func (m *module) ListNodes(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableNodes) (*inframonitoringtypes.Nodes, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListNodes")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -332,6 +340,8 @@ func (m *module) ListNodes(ctx context.Context, orgID valuer.UUID, req *inframon
 }
 
 func (m *module) ListNamespaces(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableNamespaces) (*inframonitoringtypes.Namespaces, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListNamespaces")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -414,6 +424,8 @@ func (m *module) ListNamespaces(ctx context.Context, orgID valuer.UUID, req *inf
 }
 
 func (m *module) ListClusters(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableClusters) (*inframonitoringtypes.Clusters, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListClusters")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -503,6 +515,8 @@ func (m *module) ListClusters(ctx context.Context, orgID valuer.UUID, req *infra
 }
 
 func (m *module) ListVolumes(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableVolumes) (*inframonitoringtypes.Volumes, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListVolumes")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -586,6 +600,8 @@ func (m *module) ListVolumes(ctx context.Context, orgID valuer.UUID, req *infram
 }
 
 func (m *module) ListDeployments(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableDeployments) (*inframonitoringtypes.Deployments, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListDeployments")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -674,6 +690,8 @@ func (m *module) ListDeployments(ctx context.Context, orgID valuer.UUID, req *in
 }
 
 func (m *module) ListStatefulSets(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableStatefulSets) (*inframonitoringtypes.StatefulSets, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListStatefulSets")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -764,6 +782,8 @@ func (m *module) ListStatefulSets(ctx context.Context, orgID valuer.UUID, req *i
 }
 
 func (m *module) ListJobs(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableJobs) (*inframonitoringtypes.Jobs, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListJobs")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -854,6 +874,8 @@ func (m *module) ListJobs(ctx context.Context, orgID valuer.UUID, req *inframoni
 }
 
 func (m *module) ListDaemonSets(ctx context.Context, orgID valuer.UUID, req *inframonitoringtypes.PostableDaemonSets) (*inframonitoringtypes.DaemonSets, error) {
+	ctx = m.withInfraMonitoringContext(ctx, "ListDaemonSets")
+
 	if err := req.Validate(); err != nil {
 		return nil, err
 	}
@@ -942,3 +964,12 @@ func (m *module) ListDaemonSets(ctx context.Context, orgID valuer.UUID, req *inf
 
 	return resp, nil
 }
+
+func (m *module) withInfraMonitoringContext(ctx context.Context, functionName string) context.Context {
+	comments := map[string]string{
+		instrumentationtypes.TelemetrySignal:  telemetrytypes.SignalMetrics.StringValue(),
+		instrumentationtypes.CodeNamespace:    "infra-monitoring",
+		instrumentationtypes.CodeFunctionName: functionName,
+	}
+	return ctxtypes.NewContextWithCommentVals(ctx, comments)
+}

pkg/modules/tracedetail/impltracedetail/module.go

@@ -182,7 +182,7 @@ func (m *module) getFullFlamegraph(ctx context.Context, traceID string, summary
 		return nil, spantypes.ErrTraceNotFound
 	}
 	flamegraphTrace := spantypes.NewFlamegraphTraceFromStorable(fullSpans, selectFields)
-	return spantypes.NewGettableFlamegraphTrace(flamegraphTrace.GetAllLevels(), summary.Start.UnixMilli(), summary.End.UnixMilli(), false), nil
+	return spantypes.NewGettableFlamegraphTrace(flamegraphTrace.GetAllLevels(), summary.Start, summary.End, false), nil
 }
 
 // getWindowedFlamegraph returns a window of a max levels and max sampled spans per level around the selected span.
@@ -209,10 +209,6 @@ func (m *module) getWindowedFlamegraph(ctx context.Context, traceID, selectedSpa
 		return nil, err
 	}
 
-	return spantypes.NewGettableFlamegraphTrace(
-		flamegraphTrace.EnrichSelectedSpans(selectedSpans, fullSpans, selectFields),
-		summary.Start.UnixMilli(),
-		summary.End.UnixMilli(),
-		true,
-	), nil
+	enrichedSpans := flamegraphTrace.EnrichSelectedSpans(selectedSpans, fullSpans, selectFields)
+	return spantypes.NewGettableFlamegraphTrace(enrichedSpans, summary.Start, summary.End, true), nil
 }

pkg/querier/collect.go

@@ -0,0 +1,74 @@
+package querier
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/telemetrylogs"
+	"github.com/SigNoz/signoz/pkg/telemetrymetrics"
+	"github.com/SigNoz/signoz/pkg/telemetrytraces"
+	"github.com/SigNoz/signoz/pkg/valuer"
+)
+
+func (q *querier) Collect(ctx context.Context, _ valuer.UUID) (map[string]any, error) {
+	stats := make(map[string]any)
+
+	tracesTable := fmt.Sprintf("%s.%s", telemetrytraces.DBName, telemetrytraces.SpanIndexV3TableName)
+	logsTable := fmt.Sprintf("%s.%s", telemetrylogs.DBName, telemetrylogs.LogsV2TableName)
+	metricsTable := fmt.Sprintf("%s.%s", telemetrymetrics.DBName, telemetrymetrics.SamplesV4TableName)
+
+	var traces uint64
+	if err := q.telemetryStore.ClickhouseDB().QueryRow(ctx, fmt.Sprintf("SELECT COUNT(*) FROM %s", tracesTable)).Scan(&traces); err == nil {
+		stats["telemetry.traces.count"] = traces
+	} else {
+		q.logger.DebugContext(ctx, "failed to collect traces count", errors.Attr(err))
+	}
+
+	var logs uint64
+	if err := q.telemetryStore.ClickhouseDB().QueryRow(ctx, fmt.Sprintf("SELECT COUNT(*) FROM %s", logsTable)).Scan(&logs); err == nil {
+		stats["telemetry.logs.count"] = logs
+	} else {
+		q.logger.DebugContext(ctx, "failed to collect logs count", errors.Attr(err))
+	}
+
+	var metrics uint64
+	if err := q.telemetryStore.ClickhouseDB().QueryRow(ctx, fmt.Sprintf("SELECT COUNT(*) FROM %s", metricsTable)).Scan(&metrics); err == nil {
+		stats["telemetry.metrics.count"] = metrics
+	} else {
+		q.logger.DebugContext(ctx, "failed to collect metrics count", errors.Attr(err))
+	}
+
+	var tracesLastSeenAt time.Time
+	if err := q.telemetryStore.ClickhouseDB().QueryRow(ctx, fmt.Sprintf("SELECT max(timestamp) FROM %s", tracesTable)).Scan(&tracesLastSeenAt); err == nil {
+		if tracesLastSeenAt.Unix() != 0 {
+			stats["telemetry.traces.last_observed.time"] = tracesLastSeenAt.UTC()
+			stats["telemetry.traces.last_observed.time_unix"] = tracesLastSeenAt.Unix()
+		}
+	} else {
+		q.logger.DebugContext(ctx, "failed to collect traces last observed", errors.Attr(err))
+	}
+
+	var logsLastSeenAt time.Time
+	if err := q.telemetryStore.ClickhouseDB().QueryRow(ctx, fmt.Sprintf("SELECT fromUnixTimestamp64Nano(max(timestamp)) FROM %s", logsTable)).Scan(&logsLastSeenAt); err == nil {
+		if logsLastSeenAt.Unix() != 0 {
+			stats["telemetry.logs.last_observed.time"] = logsLastSeenAt.UTC()
+			stats["telemetry.logs.last_observed.time_unix"] = logsLastSeenAt.Unix()
+		}
+	} else {
+		q.logger.DebugContext(ctx, "failed to collect logs last observed", errors.Attr(err))
+	}
+
+	var metricsLastSeenAt time.Time
+	if err := q.telemetryStore.ClickhouseDB().QueryRow(ctx, fmt.Sprintf("SELECT toDateTime(max(unix_milli) / 1000) FROM %s", metricsTable)).Scan(&metricsLastSeenAt); err == nil {
+		if metricsLastSeenAt.Unix() != 0 {
+			stats["telemetry.metrics.last_observed.time"] = metricsLastSeenAt.UTC()
+			stats["telemetry.metrics.last_observed.time_unix"] = metricsLastSeenAt.Unix()
+		}
+	} else {
+		q.logger.DebugContext(ctx, "failed to collect metrics last observed", errors.Attr(err))
+	}
+
+	return stats, nil
+}

pkg/querier/interfaces.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"net/http"
 
+	"github.com/SigNoz/signoz/pkg/statsreporter"
 	qbtypes "github.com/SigNoz/signoz/pkg/types/querybuildertypes/querybuildertypesv5"
 	"github.com/SigNoz/signoz/pkg/valuer"
 )
@@ -12,6 +13,7 @@ import (
 type Querier interface {
 	QueryRange(ctx context.Context, orgID valuer.UUID, req *qbtypes.QueryRangeRequest) (*qbtypes.QueryRangeResponse, error)
 	QueryRawStream(ctx context.Context, orgID valuer.UUID, req *qbtypes.QueryRangeRequest, client *qbtypes.RawStream)
+	statsreporter.StatsCollector
 }
 
 // BucketCache is the interface for bucket-based caching.

pkg/signoz/handler.go

@@ -49,6 +49,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/querier"
 	"github.com/SigNoz/signoz/pkg/ruler"
 	"github.com/SigNoz/signoz/pkg/ruler/signozruler"
+	"github.com/SigNoz/signoz/pkg/statsreporter"
 	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
 	"github.com/SigNoz/signoz/pkg/zeus"
 )
@@ -80,6 +81,7 @@ type Handlers struct {
 	TraceDetail             tracedetail.Handler
 	RulerHandler            ruler.Handler
 	LLMPricingRuleHandler   llmpricingrule.Handler
+	StatsHandler            statsreporter.Handler
 }
 
 func NewHandlers(
@@ -97,6 +99,7 @@ func NewHandlers(
 	registryHandler factory.Handler,
 	alertmanagerService alertmanager.Alertmanager,
 	rulerService ruler.Ruler,
+	statsAggregator statsreporter.Aggregator,
 ) Handlers {
 	return Handlers{
 		SavedView:               implsavedview.NewHandler(modules.SavedView),
@@ -125,5 +128,6 @@ func NewHandlers(
 		TraceDetail:             impltracedetail.NewHandler(modules.TraceDetail),
 		RulerHandler:            signozruler.NewHandler(rulerService),
 		LLMPricingRuleHandler:   impllmpricingrule.NewHandler(modules.LLMPricingRule),
+		StatsHandler:            statsreporter.NewHandler(statsAggregator),
 	}
 }

pkg/signoz/handler_test.go

@@ -63,7 +63,7 @@ func TestNewHandlers(t *testing.T) {
 
 	querierHandler := querier.NewHandler(providerSettings, nil, nil)
 	registryHandler := factory.NewHandler(nil)
-	handlers := NewHandlers(modules, providerSettings, nil, querierHandler, nil, nil, nil, nil, nil, nil, nil, registryHandler, alertmanager, nil)
+	handlers := NewHandlers(modules, providerSettings, nil, querierHandler, nil, nil, nil, nil, nil, nil, nil, registryHandler, alertmanager, nil, nil)
 	reflectVal := reflect.ValueOf(handlers)
 	for i := 0; i < reflectVal.NumField(); i++ {
 		f := reflectVal.Field(i)

pkg/signoz/openapi.go

@@ -36,6 +36,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/modules/user"
 	"github.com/SigNoz/signoz/pkg/querier"
 	"github.com/SigNoz/signoz/pkg/ruler"
+	"github.com/SigNoz/signoz/pkg/statsreporter"
 	"github.com/SigNoz/signoz/pkg/types/authtypes"
 	"github.com/SigNoz/signoz/pkg/zeus"
 	"github.com/swaggest/jsonschema-go"
@@ -83,6 +84,7 @@ func NewOpenAPI(ctx context.Context, instrumentation instrumentation.Instrumenta
 		struct{ llmpricingrule.Handler }{},
 		struct{ tracedetail.Handler }{},
 		struct{ ruler.Handler }{},
+		struct{ statsreporter.Handler }{},
 	).New(ctx, instrumentation.ToProviderSettings(), apiserver.Config{})
 	if err != nil {
 		return nil, err

pkg/signoz/provider.go

@@ -264,9 +264,9 @@ func NewSharderProviderFactories() factory.NamedMap[factory.ProviderFactory[shar
 	)
 }
 
-func NewStatsReporterProviderFactories(telemetryStore telemetrystore.TelemetryStore, collectors []statsreporter.StatsCollector, orgGetter organization.Getter, userGetter user.Getter, tokenizer tokenizer.Tokenizer, build version.Build, analyticsConfig analytics.Config) factory.NamedMap[factory.ProviderFactory[statsreporter.StatsReporter, statsreporter.Config]] {
+func NewStatsReporterProviderFactories(aggregator statsreporter.Aggregator, orgGetter organization.Getter, userGetter user.Getter, tokenizer tokenizer.Tokenizer, build version.Build, analyticsConfig analytics.Config) factory.NamedMap[factory.ProviderFactory[statsreporter.StatsReporter, statsreporter.Config]] {
 	return factory.MustNewNamedMap(
-		analyticsstatsreporter.NewFactory(telemetryStore, collectors, orgGetter, userGetter, tokenizer, build, analyticsConfig),
+		analyticsstatsreporter.NewFactory(aggregator, orgGetter, userGetter, tokenizer, build, analyticsConfig),
 		noopstatsreporter.NewFactory(),
 	)
 }
@@ -309,6 +309,7 @@ func NewAPIServerProviderFactories(orgGetter organization.Getter, authz authz.Au
 			handlers.LLMPricingRuleHandler,
 			handlers.TraceDetail,
 			handlers.RulerHandler,
+			handlers.StatsHandler,
 		),
 	)
 }

pkg/signoz/provider_test.go

@@ -85,8 +85,8 @@ func TestNewProviderFactories(t *testing.T) {
 
 		userGetter := impluser.NewGetter(impluser.NewStore(sqlstoretest.New(sqlstore.Config{Provider: "sqlite"}, sqlmock.QueryMatcherEqual), instrumentationtest.New().ToProviderSettings()), userRoleStore, flagger)
 		orgGetter := implorganization.NewGetter(implorganization.NewStore(sqlstoretest.New(sqlstore.Config{Provider: "sqlite"}, sqlmock.QueryMatcherEqual)), nil)
-		telemetryStore := telemetrystoretest.New(telemetrystore.Config{Provider: "clickhouse"}, sqlmock.QueryMatcherEqual)
-		NewStatsReporterProviderFactories(telemetryStore, []statsreporter.StatsCollector{}, orgGetter, userGetter, tokenizertest.NewMockTokenizer(t), version.Build{}, analytics.Config{Enabled: true})
+		statsAggregator := statsreporter.NewAggregator(providerSettings, []statsreporter.StatsCollector{})
+		NewStatsReporterProviderFactories(statsAggregator, orgGetter, userGetter, tokenizertest.NewMockTokenizer(t), version.Build{}, analytics.Config{Enabled: true})
 	})
 
 	assert.NotPanics(t, func() {

pkg/signoz/signoz.go

@@ -499,14 +499,18 @@ func New(
 		serviceAccount,
 		cloudIntegrationModule,
 		modules.LogsPipeline,
+		querier,
 	}
 
+	// Initialize the stats aggregator (always-on, independent of whether reporting is enabled)
+	statsAggregator := statsreporter.NewAggregator(providerSettings, statsCollectors)
+
 	// Initialize stats reporter from the available stats reporter provider factories
 	statsReporter, err := factory.NewProviderFromNamedMap(
 		ctx,
 		providerSettings,
 		config.StatsReporter,
-		NewStatsReporterProviderFactories(telemetrystore, statsCollectors, orgGetter, userGetter, tokenizer, version.Info, config.Analytics),
+		NewStatsReporterProviderFactories(statsAggregator, orgGetter, userGetter, tokenizer, version.Info, config.Analytics),
 		config.StatsReporter.Provider(),
 	)
 	if err != nil {
@@ -535,7 +539,7 @@ func New(
 
 	// Initialize all handlers for the modules
 	registryHandler := factory.NewHandler(registry)
-	handlers := NewHandlers(modules, providerSettings, analytics, querierHandler, licensing, global, flagger, gateway, telemetryMetadataStore, authz, zeus, registryHandler, alertmanager, rulerInstance)
+	handlers := NewHandlers(modules, providerSettings, analytics, querierHandler, licensing, global, flagger, gateway, telemetryMetadataStore, authz, zeus, registryHandler, alertmanager, rulerInstance, statsAggregator)
 
 	// Initialize the API server (after registry so it can access service health)
 	apiserverInstance, err := factory.NewProviderFromNamedMap(

pkg/statsreporter/aggregator.go

@@ -0,0 +1,67 @@
+package statsreporter
+
+import (
+	"context"
+	"sync"
+
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/factory"
+	"github.com/SigNoz/signoz/pkg/types/ctxtypes"
+	"github.com/SigNoz/signoz/pkg/types/instrumentationtypes"
+	"github.com/SigNoz/signoz/pkg/valuer"
+)
+
+// Aggregator aggregates stats from every registered StatsCollector for a single organization.
+type Aggregator interface {
+	Aggregate(ctx context.Context, orgID valuer.UUID) (map[string]any, error)
+}
+
+type aggregator struct {
+	// settings
+	settings factory.ScopedProviderSettings
+
+	// a list of collectors, used to collect stats from across the codebase
+	collectors []StatsCollector
+}
+
+func NewAggregator(providerSettings factory.ProviderSettings, collectors []StatsCollector) Aggregator {
+	settings := factory.NewScopedProviderSettings(providerSettings, "github.com/SigNoz/signoz/pkg/statsreporter")
+
+	return &aggregator{
+		settings:   settings,
+		collectors: collectors,
+	}
+}
+
+func (aggregator *aggregator) Aggregate(ctx context.Context, orgID valuer.UUID) (map[string]any, error) {
+	ctx = ctxtypes.NewContextWithCommentVals(ctx, map[string]string{
+		instrumentationtypes.CodeNamespace:    "statsreporter",
+		instrumentationtypes.CodeFunctionName: "Aggregate",
+	})
+	var wg sync.WaitGroup
+	wg.Add(len(aggregator.collectors))
+
+	stats := make(map[string]any, 0)
+	mtx := sync.Mutex{}
+
+	for _, collector := range aggregator.collectors {
+		go func(collector StatsCollector) {
+			defer wg.Done()
+
+			collectorStats, err := collector.Collect(ctx, orgID)
+			if err != nil {
+				aggregator.settings.Logger().ErrorContext(ctx, "failed to collect stats", errors.Attr(err))
+				return
+			}
+
+			mtx.Lock()
+			for k, v := range collectorStats {
+				stats[k] = v
+			}
+			mtx.Unlock()
+		}(collector)
+	}
+	wg.Wait()
+
+	return stats, nil
+}

pkg/statsreporter/analyticsstatsreporter/provider.go

@@ -3,7 +3,6 @@ package analyticsstatsreporter
 import (
 	"context"
 	"log/slog"
-	"sync"
 	"time"
 
 	"go.opentelemetry.io/otel/attribute"
@@ -16,11 +15,8 @@ import (
 	"github.com/SigNoz/signoz/pkg/modules/organization"
 	"github.com/SigNoz/signoz/pkg/modules/user"
 	"github.com/SigNoz/signoz/pkg/statsreporter"
-	"github.com/SigNoz/signoz/pkg/telemetrystore"
 	"github.com/SigNoz/signoz/pkg/tokenizer"
 	"github.com/SigNoz/signoz/pkg/types"
-	"github.com/SigNoz/signoz/pkg/types/ctxtypes"
-	"github.com/SigNoz/signoz/pkg/types/instrumentationtypes"
 	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/SigNoz/signoz/pkg/version"
 )
@@ -32,11 +28,8 @@ type provider struct {
 	// config
 	config statsreporter.Config
 
-	// used to get telemetry details. srikanthcvv to move this to the querier layer
-	telemetryStore telemetrystore.TelemetryStore
-
-	// a list of collectors, used to collect stats from across the codebase
-	collectors []statsreporter.StatsCollector
+	// used to aggregate stats for an organization
+	aggregator statsreporter.Aggregator
 
 	// used to get organizations
 	orgGetter organization.Getter
@@ -60,9 +53,9 @@ type provider struct {
 	stopC chan struct{}
 }
 
-func NewFactory(telemetryStore telemetrystore.TelemetryStore, collectors []statsreporter.StatsCollector, orgGetter organization.Getter, userGetter user.Getter, tokenizer tokenizer.Tokenizer, build version.Build, analyticsConfig analytics.Config) factory.ProviderFactory[statsreporter.StatsReporter, statsreporter.Config] {
+func NewFactory(aggregator statsreporter.Aggregator, orgGetter organization.Getter, userGetter user.Getter, tokenizer tokenizer.Tokenizer, build version.Build, analyticsConfig analytics.Config) factory.ProviderFactory[statsreporter.StatsReporter, statsreporter.Config] {
 	return factory.NewProviderFactory(factory.MustNewName("analytics"), func(ctx context.Context, settings factory.ProviderSettings, config statsreporter.Config) (statsreporter.StatsReporter, error) {
-		return New(ctx, settings, config, telemetryStore, collectors, orgGetter, userGetter, tokenizer, build, analyticsConfig)
+		return New(ctx, settings, config, aggregator, orgGetter, userGetter, tokenizer, build, analyticsConfig)
 	})
 }
 
@@ -70,8 +63,7 @@ func New(
 	ctx context.Context,
 	providerSettings factory.ProviderSettings,
 	config statsreporter.Config,
-	telemetryStore telemetrystore.TelemetryStore,
-	collectors []statsreporter.StatsCollector,
+	aggregator statsreporter.Aggregator,
 	orgGetter organization.Getter,
 	userGetter user.Getter,
 	tokenizer tokenizer.Tokenizer,
@@ -86,17 +78,16 @@ func New(
 	}
 
 	return &provider{
-		settings:       settings,
-		config:         config,
-		telemetryStore: telemetryStore,
-		collectors:     collectors,
-		orgGetter:      orgGetter,
-		userGetter:     userGetter,
-		analytics:      analytics,
-		tokenizer:      tokenizer,
-		build:          build,
-		deployment:     deployment,
-		stopC:          make(chan struct{}),
+		settings:   settings,
+		config:     config,
+		aggregator: aggregator,
+		orgGetter:  orgGetter,
+		userGetter: userGetter,
+		analytics:  analytics,
+		tokenizer:  tokenizer,
+		build:      build,
+		deployment: deployment,
+		stopC:      make(chan struct{}),
 	}, nil
 }
 
@@ -134,7 +125,12 @@ func (provider *provider) Report(ctx context.Context) error {
 	}
 
 	for _, org := range orgs {
-		stats := provider.collectOrg(ctx, org.ID)
+		stats, err := provider.aggregator.Aggregate(ctx, org.ID)
+		if err != nil {
+			provider.settings.Logger().WarnContext(ctx, "failed to aggregate stats", errors.Attr(err), slog.Any("org_id", org.ID))
+			continue
+		}
+
 		if len(stats) == 0 {
 			provider.settings.Logger().WarnContext(ctx, "no stats collected", slog.Any("org_id", org.ID))
 			continue
@@ -204,75 +200,3 @@ func (provider *provider) Stop(ctx context.Context) error {
 
 	return nil
 }
-
-func (provider *provider) collectOrg(ctx context.Context, orgID valuer.UUID) map[string]any {
-	ctx = ctxtypes.NewContextWithCommentVals(ctx, map[string]string{
-		instrumentationtypes.CodeNamespace:    "statsreporter",
-		instrumentationtypes.CodeFunctionName: "collectOrg",
-	})
-	var wg sync.WaitGroup
-	wg.Add(len(provider.collectors))
-
-	stats := make(map[string]any, 0)
-	mtx := sync.Mutex{}
-
-	for _, collector := range provider.collectors {
-		go func(collector statsreporter.StatsCollector) {
-			defer wg.Done()
-
-			collectorStats, err := collector.Collect(ctx, orgID)
-			if err != nil {
-				provider.settings.Logger().ErrorContext(ctx, "failed to collect stats", errors.Attr(err))
-				return
-			}
-
-			mtx.Lock()
-			for k, v := range collectorStats {
-				stats[k] = v
-			}
-			mtx.Unlock()
-		}(collector)
-	}
-	wg.Wait()
-
-	var traces uint64
-	if err := provider.telemetryStore.ClickhouseDB().QueryRow(ctx, "SELECT COUNT(*) FROM signoz_traces.distributed_signoz_index_v3").Scan(&traces); err == nil {
-		stats["telemetry.traces.count"] = traces
-	}
-
-	var logs uint64
-	if err := provider.telemetryStore.ClickhouseDB().QueryRow(ctx, "SELECT COUNT(*) FROM signoz_logs.distributed_logs_v2").Scan(&logs); err == nil {
-		stats["telemetry.logs.count"] = logs
-	}
-
-	var metrics uint64
-	if err := provider.telemetryStore.ClickhouseDB().QueryRow(ctx, "SELECT COUNT(*) FROM signoz_metrics.distributed_samples_v4").Scan(&metrics); err == nil {
-		stats["telemetry.metrics.count"] = metrics
-	}
-
-	var tracesLastSeenAt time.Time
-	if err := provider.telemetryStore.ClickhouseDB().QueryRow(ctx, "SELECT max(timestamp) FROM signoz_traces.distributed_signoz_index_v3").Scan(&tracesLastSeenAt); err == nil {
-		if tracesLastSeenAt.Unix() != 0 {
-			stats["telemetry.traces.last_observed.time"] = tracesLastSeenAt.UTC()
-			stats["telemetry.traces.last_observed.time_unix"] = tracesLastSeenAt.Unix()
-		}
-	}
-
-	var logsLastSeenAt time.Time
-	if err := provider.telemetryStore.ClickhouseDB().QueryRow(ctx, "SELECT fromUnixTimestamp64Nano(max(timestamp)) FROM signoz_logs.distributed_logs_v2").Scan(&logsLastSeenAt); err == nil {
-		if logsLastSeenAt.Unix() != 0 {
-			stats["telemetry.logs.last_observed.time"] = logsLastSeenAt.UTC()
-			stats["telemetry.logs.last_observed.time_unix"] = logsLastSeenAt.Unix()
-		}
-	}
-
-	var metricsLastSeenAt time.Time
-	if err := provider.telemetryStore.ClickhouseDB().QueryRow(ctx, "SELECT toDateTime(max(unix_milli) / 1000) FROM signoz_metrics.distributed_samples_v4").Scan(&metricsLastSeenAt); err == nil {
-		if metricsLastSeenAt.Unix() != 0 {
-			stats["telemetry.metrics.last_observed.time"] = metricsLastSeenAt.UTC()
-			stats["telemetry.metrics.last_observed.time_unix"] = metricsLastSeenAt.Unix()
-		}
-	}
-
-	return stats
-}

pkg/statsreporter/handler.go

@@ -0,0 +1,46 @@
+package statsreporter
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"github.com/SigNoz/signoz/pkg/http/render"
+	"github.com/SigNoz/signoz/pkg/types/authtypes"
+	"github.com/SigNoz/signoz/pkg/valuer"
+)
+
+type Handler interface {
+	Get(http.ResponseWriter, *http.Request)
+}
+
+type handler struct {
+	aggregator Aggregator
+}
+
+func NewHandler(aggregator Aggregator) Handler {
+	return &handler{
+		aggregator: aggregator,
+	}
+}
+
+func (handler *handler) Get(rw http.ResponseWriter, r *http.Request) {
+	ctx, cancel := context.WithTimeout(r.Context(), 10*time.Second)
+	defer cancel()
+
+	claims, err := authtypes.ClaimsFromContext(ctx)
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	orgID := valuer.MustNewUUID(claims.OrgID)
+
+	stats, err := handler.aggregator.Aggregate(ctx, orgID)
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	render.Success(rw, http.StatusOK, stats)
+}

pkg/types/spantypes/flamegraph_span.go

@@ -1,6 +1,8 @@
 package spantypes
 
 import (
+	"time"
+
 	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
 )
 
@@ -37,11 +39,17 @@ type GettableFlamegraphTrace struct {
 	HasMore              bool                `json:"hasMore" required:"true"`
 }
 
-func NewGettableFlamegraphTrace(spans [][]*FlamegraphSpan, startMs, endMs int64, hasMore bool) *GettableFlamegraphTrace {
+func NewGettableFlamegraphTrace(spans [][]*FlamegraphSpan, start, end time.Time, hasMore bool) *GettableFlamegraphTrace {
+	// convert timestamp to millisecond since client expect that
+	for _, level := range spans {
+		for _, span := range level {
+			span.Timestamp /= 1_000_000
+		}
+	}
 	return &GettableFlamegraphTrace{
 		Spans:                spans,
-		StartTimestampMillis: startMs,
-		EndTimestampMillis:   endMs,
+		StartTimestampMillis: start.UnixMilli(),
+		EndTimestampMillis:   end.UnixMilli(),
 		HasMore:              hasMore,
 	}
 }

tests/integration/tests/dashboard/03_v2_dashboard.py

@@ -9,6 +9,28 @@ from fixtures.auth import USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD
 from fixtures.types import Operation, SigNoz
 
 BASE_URL = "/api/v2/dashboards"
+# v1 list returns every dashboard regardless of schema. v2 list converts each row
+# to the perses schema and 501s if any stored dashboard isn't perses-schema, so
+# listing for cleanup against a shared DB must go through v1.
+V1_BASE_URL = "/api/v1/dashboards"
+
+
+def _wipe_all_dashboards(signoz: SigNoz, token: str) -> None:
+    response = requests.get(
+        signoz.self.host_configs["8080"].get(V1_BASE_URL),
+        headers={"Authorization": f"Bearer {token}"},
+        timeout=5,
+    )
+    assert response.status_code == HTTPStatus.OK, response.text
+    for dashboard in response.json()["data"]:
+        metadata = (dashboard.get("data") or {}).get("metadata") or {}
+        base = BASE_URL if metadata.get("schemaVersion") == "v6" else V1_BASE_URL
+        del_res = requests.delete(
+            signoz.self.host_configs["8080"].get(f"{base}/{dashboard['id']}"),
+            headers={"Authorization": f"Bearer {token}"},
+            timeout=5,
+        )
+        assert del_res.status_code == HTTPStatus.NO_CONTENT, del_res.text
 
 
 # ─── failure cases (create no dashboards) ────────────────────────────────────
@@ -258,18 +280,7 @@ def test_dashboard_v2_lifecycle(  # pylint: disable=too-many-locals,too-many-sta
     # runs, so start from a clean slate: delete every dashboard (which also clears
     # pins via the delete cascade). This test then owns the whole dashboard space
     # and asserts on global counts.
-    existing = requests.get(
-        signoz.self.host_configs["8080"].get(BASE_URL),
-        params={"limit": 200},
-        headers={"Authorization": f"Bearer {token}"},
-        timeout=5,
-    ).json()["data"]["dashboards"]
-    for dashboard in existing:
-        requests.delete(
-            signoz.self.host_configs["8080"].get(f"{BASE_URL}/{dashboard['id']}"),
-            headers={"Authorization": f"Bearer {token}"},
-            timeout=5,
-        )
+    _wipe_all_dashboards(signoz, token)
 
     dashboard_requests = [
         (
@@ -687,18 +698,7 @@ def test_dashboard_v2_pin_limit(
 
     # Wipe the dashboard space (see lifecycle) so the per-user pin cap this test
     # asserts against starts empty — deleting dashboards clears their pins.
-    existing = requests.get(
-        signoz.self.host_configs["8080"].get(BASE_URL),
-        params={"limit": 200},
-        headers={"Authorization": f"Bearer {token}"},
-        timeout=5,
-    ).json()["data"]["dashboards"]
-    for dashboard in existing:
-        requests.delete(
-            signoz.self.host_configs["8080"].get(f"{BASE_URL}/{dashboard['id']}"),
-            headers={"Authorization": f"Bearer {token}"},
-            timeout=5,
-        )
+    _wipe_all_dashboards(signoz, token)
 
     ids: list[str] = []
     for i in range(max_pinned + 1):
@@ -785,18 +785,7 @@ def test_dashboard_v2_like_escaping(
 
     # Wipe the dashboard space (see lifecycle) so the filter assertions run
     # against only the dashboards this test creates.
-    existing = requests.get(
-        signoz.self.host_configs["8080"].get(BASE_URL),
-        params={"limit": 200},
-        headers={"Authorization": f"Bearer {token}"},
-        timeout=5,
-    ).json()["data"]["dashboards"]
-    for dashboard in existing:
-        requests.delete(
-            signoz.self.host_configs["8080"].get(f"{BASE_URL}/{dashboard['id']}"),
-            headers={"Authorization": f"Bearer {token}"},
-            timeout=5,
-        )
+    _wipe_all_dashboards(signoz, token)
 
     dashboard_requests = [
         ("esc-pct", "Cost 50% Report"),