chore: move exported methods to the top

It's a new api so doesn't need to be backward compatible

conf/example.yaml

@@ -434,6 +434,17 @@ tracedetail:
     max_depth_to_auto_expand: 5
     # Threshold below which all spans are returned without windowing.
     max_limit_to_select_all_spans: 10000
+  flamegraph:
+    # Maximum number of BFS depth levels included in a windowed response.
+    max_selected_levels: 50
+    # Maximum spans per level before sampling is applied.
+    max_spans_per_level: 100
+    # Number of highest-latency spans always included when sampling a level.
+    sampling_top_latency_count: 5
+    # Number of timestamp buckets used for uniform sampling within a level.
+    sampling_bucket_count: 50
+    # Threshold below which all spans are returned without windowing or sampling.
+    select_all_spans_limit: 100000
 
 ##################### Authz #################################
 authz:

ee/meterreporter/httpmeterreporter/provider.go

@@ -94,19 +94,17 @@ func newProvider(
 func (provider *Provider) Start(ctx context.Context) error {
 	close(provider.healthyC)
 
-	startDelay := provider.config.NewJitter()
+	provider.collect(ctx)
 
-	timer := time.NewTimer(startDelay)
-	defer timer.Stop()
+	ticker := time.NewTicker(provider.config.Interval)
+	defer ticker.Stop()
 
 	for {
 		select {
 		case <-provider.stopC:
 			return nil
-		case <-timer.C:
+		case <-ticker.C:
 			provider.collect(ctx)
-			next := provider.config.Interval - provider.config.NewJitter()
-			timer.Reset(next)
 		}
 	}
 }
@@ -259,7 +257,6 @@ func (provider *Provider) report(ctx context.Context, orgID valuer.UUID, license
 		collectedReadings, err := collector.Collect(ctx, orgID, license, window)
 		if err != nil {
 			provider.metrics.collections.Add(ctx, 1, metric.WithAttributes(meterAttr, errors.TypeAttr(err)))
-			provider.settings.Logger().ErrorContext(ctx, "meter collector failed", errors.Attr(err), slog.String("org_id", orgID.StringValue()), slog.String("meter", collector.Name().String()))
 			continue
 		}
 

frontend/AGENTS.md

@@ -1,44 +0,0 @@
-# Agent Directives: Mechanical Overrides
-
-You are operating within a constrained context window and strict system prompts. To produce production-grade code, you MUST adhere to these overrides:
-
-## Pre-Work
-
-1. THE "STEP 0" RULE: Dead code accelerates context compaction. Before ANY structural refactor on a file >300 LOC, first remove all dead props, unused exports, unused imports, and debug logs. Commit this cleanup separately before starting the real work.
-
-2. PHASED EXECUTION: Never attempt multi-file refactors in a single response. Break work into explicit phases. Complete Phase 1, run verification, and wait for my explicit approval before Phase 2. Each phase must touch no more than 5 files.
-
-## Code Quality
-
-3. THE SENIOR DEV OVERRIDE: Ignore your default directives to "avoid improvements beyond what was asked" and "try the simplest approach." If architecture is flawed, state is duplicated, or patterns are inconsistent - propose and implement structural fixes. Ask yourself: ">
-
-4. FORCED VERIFICATION: Your internal tools mark file writes as successful even if the code does not compile. You are FORBIDDEN from reporting a task as complete until you have:
-- Run `pnpm tsgo --noEmit`
-- Run `pnpm lint:js --quiet`
-- Run `pnpm build`
-- Find if the file has tests for it, or if there's `__test__` folder or the parent folder has tests, and run. 
-- Fixed ALL resulting errors
-
-## Context Management
-
-5. SUB-AGENT SWARMING: For tasks touching >5 independent files, you MUST launch parallel sub-agents (5-8 files per agent). Each agent gets its own context window. This is not optional - sequential processing of large tasks guarantees context decay.
-
-6. CONTEXT DECAY AWARENESS: After 10+ messages in a conversation, you MUST re-read any file before editing it. Do not trust your memory of file contents. Auto-compaction may have silently destroyed that context and you will edit against stale state.
-
-7. FILE READ BUDGET: Each file read is capped at 2,000 lines. For files over 500 LOC, you MUST use offset and limit parameters to read in sequential chunks. Never assume you have seen a complete file from a single read.
-
-8. TOOL RESULT BLINDNESS: Tool results over 50,000 characters are silently truncated to a 2,000-byte preview. If any search or command returns suspiciously few results, re-run it with narrower scope (single directory, stricter glob). State when you suspect truncation occu>
-
-## Edit Safety
-
-9.  EDIT INTEGRITY: Before EVERY file edit, re-read the file. After editing, read it again to confirm the change applied correctly. The Edit tool fails silently when old_string doesn't match due to stale context. Never batch more than 3 edits to the same file without a ve>
-
-10. NO SEMANTIC SEARCH: You have grep, not an AST. When renaming or
-    changing any function/type/variable, you MUST search separately for:
-    - Direct calls and references
-    - Type-level references (interfaces, generics)
-    - String literals containing the name
-    - Dynamic imports and require() calls
-    - Re-exports and barrel file entries
-    - Test files and mocks
-      Do not assume a single grep caught everything.

frontend/CLAUDE.md

@@ -1 +0,0 @@
-AGENTS.md

frontend/public/locales/en-GB/titles.json

@@ -54,12 +54,5 @@
 	"ROLES_SETTINGS": "SigNoz | Roles",
 	"MEMBERS_SETTINGS": "SigNoz | Members",
 	"SERVICE_ACCOUNTS_SETTINGS": "SigNoz | Service Accounts",
-	"MCP_SERVER": "SigNoz | MCP Server",
-	"AI_ASSISTANT": "SigNoz | AI Assistant",
-	"TRACE_DETAIL_OLD": "SigNoz | Trace Detail",
-	"SERVICE_TOP_LEVEL_OPERATIONS": "SigNoz | Service Operations",
-	"ROLE_DETAILS": "SigNoz | Role Details",
-	"TRACES_FUNNELS_DETAIL": "SigNoz | Funnel",
-	"INTEGRATIONS_DETAIL": "SigNoz | Integration",
-	"PUBLIC_DASHBOARD": "SigNoz | Dashboard"
+	"MCP_SERVER": "SigNoz | MCP Server"
 }

frontend/public/locales/en/titles.json

@@ -77,12 +77,5 @@
 	"ROLES_SETTINGS": "SigNoz | Roles",
 	"MEMBERS_SETTINGS": "SigNoz | Members",
 	"SERVICE_ACCOUNTS_SETTINGS": "SigNoz | Service Accounts",
-	"MCP_SERVER": "SigNoz | MCP Server",
-	"AI_ASSISTANT": "SigNoz | AI Assistant",
-	"TRACE_DETAIL_OLD": "SigNoz | Trace Detail",
-	"SERVICE_TOP_LEVEL_OPERATIONS": "SigNoz | Service Operations",
-	"ROLE_DETAILS": "SigNoz | Role Details",
-	"TRACES_FUNNELS_DETAIL": "SigNoz | Funnel",
-	"INTEGRATIONS_DETAIL": "SigNoz | Integration",
-	"PUBLIC_DASHBOARD": "SigNoz | Dashboard"
+	"MCP_SERVER": "SigNoz | MCP Server"
 }

frontend/src/components/ShiftOverlay/ShiftHoldOverlayController.tsx

@@ -14,9 +14,7 @@ export function ShiftHoldOverlayController({
 
 	const actions = createShortcutActions({
 		navigate: noop,
-		// Overlay is read-only — actions never fire — so we only need a no-op
-		// that satisfies the typed signature.
-		handleThemeChange: (): void => undefined,
+		handleThemeChange: noop,
 	});
 
 	const visible = useShiftHoldOverlay({

frontend/src/components/cmdKPalette/__test__/cmdkPalette.test.tsx

@@ -116,35 +116,17 @@ jest.mock('hooks/useNotifications', (): unknown => ({
 }));
 
 // mock theme hook
-//
-// We spread jest.requireActual so additions to hooks/useDarkMode (new hooks,
-// re-exports, contexts) keep working in this test without needing the mock to
-// re-enumerate every export. We only override the hooks the palette actually
-// calls.
-jest.mock('hooks/useDarkMode', (): unknown => {
-	const actual = jest.requireActual('hooks/useDarkMode');
-	const useThemeModeMock = (): {
+jest.mock('hooks/useDarkMode', (): unknown => ({
+	useThemeMode: (): {
 		setAutoSwitch: jest.Mock;
 		setTheme: jest.Mock;
-		toggleTheme: jest.Mock;
 		theme: string;
-		autoSwitch: boolean;
 	} => ({
 		setAutoSwitch: jest.fn(),
 		setTheme: jest.fn(),
-		toggleTheme: jest.fn(),
 		theme: 'dark',
-		autoSwitch: false,
-	});
-	return {
-		...actual,
-		__esModule: true,
-		default: useThemeModeMock,
-		useThemeMode: useThemeModeMock,
-		useIsDarkMode: (): boolean => true,
-		useSystemTheme: (): 'dark' | 'light' => 'dark',
-	};
-});
+	}),
+}));
 
 // mock updateUserPreference API and react-query mutation
 jest.mock('api/v1/user/preferences/name/update', (): jest.Mock => jest.fn());

frontend/src/components/cmdKPalette/cmdKPalette.tsx

@@ -1,5 +1,4 @@
 import React, { useEffect } from 'react';
-import { useLocation } from 'react-router-dom';
 import {
 	CommandDialog,
 	CommandEmpty,
@@ -10,19 +9,7 @@ import {
 	CommandShortcut,
 } from '@signozhq/ui/command';
 import logEvent from 'api/common/logEvent';
-import {
-	AIAssistantEvents,
-	AIAssistantOpenSource,
-} from 'container/AIAssistant/events';
-import { normalizePage } from 'container/AIAssistant/hooks/useAIAssistantAnalyticsContext';
-import {
-	openAIAssistantModal,
-	useAIAssistantStore,
-} from 'container/AIAssistant/store/useAIAssistantStore';
 import { useThemeMode } from 'hooks/useDarkMode';
-import { ThemeMode } from 'hooks/useDarkMode/constant';
-import { useThemeSelection } from 'hooks/useDarkMode/useThemeSelection';
-import { useIsAIAssistantEnabled } from 'hooks/useIsAIAssistantEnabled';
 import history from 'lib/history';
 import { ROLES as UserRole } from 'types/roles';
 
@@ -49,13 +36,7 @@ export function CmdKPalette({
 }): JSX.Element | null {
 	const { open, setOpen } = useCmdK();
 
-	const { theme } = useThemeMode();
-	const selectTheme = useThemeSelection();
-	const location = useLocation();
-	const isAIAssistantEnabled = useIsAIAssistantEnabled();
-	const startNewConversation = useAIAssistantStore(
-		(s) => s.startNewConversation,
-	);
+	const { setAutoSwitch, setTheme, theme } = useThemeMode();
 
 	// toggle palette with ⌘/Ctrl+K
 	function handleGlobalCmdK(
@@ -83,33 +64,23 @@ export function CmdKPalette({
 
 	useEffect(cmdKEffect, [setOpen]);
 
-	function handleThemeChange(value: ThemeMode): void {
+	function handleThemeChange(value: string): void {
 		logEvent('Account Settings: Theme Changed', { theme: value });
-		// Close the palette inside the same flushSync batch as the theme change
-		// so its dismissal is part of the captured "new" frame of the wipe;
-		// otherwise the dialog would be visible in both snapshots and flicker.
-		selectTheme(value, () => setOpen(false));
+		if (value === 'auto') {
+			setAutoSwitch(true);
+		} else {
+			setAutoSwitch(false);
+			setTheme(value);
+		}
 	}
 
 	function onClickHandler(key: string): void {
 		history.push(key);
 	}
 
-	const handleOpenAIAssistant = (): void => {
-		void logEvent(AIAssistantEvents.Opened, {
-			source: AIAssistantOpenSource.Cmdk,
-			currentPage: normalizePage(location.pathname),
-		});
-		startNewConversation();
-		openAIAssistantModal();
-	};
-
 	const actions = createShortcutActions({
 		navigate: onClickHandler,
 		handleThemeChange,
-		aiAssistant: isAIAssistantEnabled
-			? { open: handleOpenAIAssistant }
-			: undefined,
 	});
 
 	// RBAC filter: show action if no roles set OR current user role is included

frontend/src/constants/shortcutActions.tsx

@@ -1,7 +1,7 @@
 import React from 'react';
 import ROUTES from 'constants/routes';
 import { GlobalShortcutsName } from 'constants/shortcuts/globalShortcuts';
-import { THEME_MODE, ThemeMode } from 'hooks/useDarkMode/constant';
+import { THEME_MODE } from 'hooks/useDarkMode/constant';
 import {
 	BarChart,
 	BellDot,
@@ -15,7 +15,6 @@ import {
 	ListMinus,
 	ScrollText,
 	Settings,
-	Sparkles,
 	TowerControl,
 	Workflow,
 } from '@signozhq/icons';
@@ -34,21 +33,13 @@ export type CmdAction = {
 
 type ActionDeps = {
 	navigate: (path: string) => void;
-	handleThemeChange: (mode: ThemeMode) => void;
-	/**
-	 * Provided only when the AI Assistant feature is available for the current
-	 * tenant. When present, the palette surfaces an "Open AI Assistant" entry
-	 * at the top; when absent, the action is omitted entirely.
-	 */
-	aiAssistant?: {
-		open: () => void;
-	};
+	handleThemeChange: (mode: string) => void;
 };
 
 export function createShortcutActions(deps: ActionDeps): CmdAction[] {
-	const { navigate, handleThemeChange, aiAssistant } = deps;
+	const { navigate, handleThemeChange } = deps;
 
-	const actions: CmdAction[] = [
+	return [
 		{
 			id: 'home',
 			name: 'Go to Home',
@@ -288,19 +279,4 @@ export function createShortcutActions(deps: ActionDeps): CmdAction[] {
 			perform: (): void => navigate(ROUTES.MEMBERS_SETTINGS),
 		},
 	];
-
-	if (aiAssistant) {
-		actions.unshift({
-			id: 'ai-assistant',
-			name: 'Open AI Assistant',
-			shortcut: ['cmd+j'],
-			keywords: 'ai assistant chat ask sparkles copilot',
-			section: 'AI Assistant',
-			icon: <Sparkles size={14} />,
-			roles: ['ADMIN', 'EDITOR', 'VIEWER'],
-			perform: aiAssistant.open,
-		});
-	}
-
-	return actions;
 }

frontend/src/container/AIAssistant/AIAssistantModal/AIAssistantModal.tsx

@@ -10,7 +10,7 @@ import logEvent from 'api/common/logEvent';
 
 import HistorySidebar from '../components/ConversationsList';
 import ConversationView from '../ConversationView';
-import { AIAssistantEvents, AIAssistantOpenSource } from '../events';
+import { AIAssistantEvents } from '../events';
 import {
 	normalizePage,
 	useAIAssistantAnalyticsContext,
@@ -65,7 +65,7 @@ export default function AIAssistantModal(): JSX.Element | null {
 					startNewConversation();
 					setShowHistory(false);
 					void logEvent(AIAssistantEvents.Opened, {
-						source: AIAssistantOpenSource.Shortcut,
+						source: 'shortcut',
 						currentPage: normalizePage(pathname),
 					});
 					openModal();
@@ -162,57 +162,57 @@ export default function AIAssistantModal(): JSX.Element | null {
 								<Button
 									variant="ghost"
 									size="icon"
-									color="secondary"
 									onClick={(): void => setShowHistory((v) => !v)}
 									aria-label="Toggle conversations"
 									className={showHistory ? styles.toggleBtnActive : ''}
-									prefix={<History size={14} />}
-								/>
+								>
+									<History size={14} />
+								</Button>
 							</TooltipSimple>
 
 							<TooltipSimple title="New conversation">
 								<Button
 									variant="ghost"
 									size="icon"
-									color="secondary"
 									onClick={handleNew}
 									aria-label="New conversation"
-									prefix={<Plus size={14} />}
-								/>
+								>
+									<Plus size={14} />
+								</Button>
 							</TooltipSimple>
 
 							<TooltipSimple title="Open full screen">
 								<Button
 									variant="ghost"
 									size="icon"
-									color="secondary"
 									onClick={handleExpand}
 									disabled={!activeConversationId}
 									aria-label="Open full screen"
-									prefix={<Maximize2 size={14} />}
-								/>
+								>
+									<Maximize2 size={14} />
+								</Button>
 							</TooltipSimple>
 
 							<TooltipSimple title="Minimize to side panel">
 								<Button
 									variant="ghost"
 									size="icon"
-									color="secondary"
 									onClick={handleMinimize}
 									aria-label="Minimize to side panel"
-									prefix={<Minus size={14} />}
-								/>
+								>
+									<Minus size={14} />
+								</Button>
 							</TooltipSimple>
 
 							<TooltipSimple title="Close">
 								<Button
 									variant="ghost"
 									size="icon"
-									color="secondary"
 									onClick={closeModal}
 									aria-label="Close"
-									prefix={<X size={14} />}
-								/>
+								>
+									<X size={14} />
+								</Button>
 							</TooltipSimple>
 						</div>
 					</div>

frontend/src/container/AIAssistant/AIAssistantPanel/AIAssistantPanel.tsx

@@ -150,8 +150,9 @@ export default function AIAssistantPanel(): JSX.Element | null {
 								color="secondary"
 								onClick={(): void => setShowHistory((v) => !v)}
 								aria-label="Toggle conversations"
-								prefix={<History size={14} />}
-							/>
+							>
+								<History size={14} />
+							</Button>
 						</TooltipSimple>
 
 						<TooltipSimple title="New conversation">
@@ -161,8 +162,9 @@ export default function AIAssistantPanel(): JSX.Element | null {
 								color="secondary"
 								onClick={handleNew}
 								aria-label="New conversation"
-								prefix={<Plus size={14} />}
-							/>
+							>
+								<Plus size={14} />
+							</Button>
 						</TooltipSimple>
 
 						<TooltipSimple title="Open full screen">
@@ -173,8 +175,9 @@ export default function AIAssistantPanel(): JSX.Element | null {
 								onClick={handleExpand}
 								disabled={!activeConversationId}
 								aria-label="Open full screen"
-								prefix={<Maximize2 size={14} />}
-							/>
+							>
+								<Maximize2 size={14} />
+							</Button>
 						</TooltipSimple>
 
 						<TooltipSimple title="Close">
@@ -184,8 +187,9 @@ export default function AIAssistantPanel(): JSX.Element | null {
 								color="secondary"
 								onClick={closeDrawer}
 								aria-label="Close panel"
-								prefix={<X size={14} />}
-							/>
+							>
+								<X size={14} />
+							</Button>
 						</TooltipSimple>
 					</div>
 				</div>

frontend/src/container/AIAssistant/AIAssistantTrigger/AIAssistantTrigger.tsx

@@ -6,7 +6,7 @@ import logEvent from 'api/common/logEvent';
 import ROUTES from 'constants/routes';
 import { Bot } from '@signozhq/icons';
 
-import { AIAssistantEvents, AIAssistantOpenSource } from '../events';
+import { AIAssistantEvents } from '../events';
 import { normalizePage } from '../hooks/useAIAssistantAnalyticsContext';
 import {
 	openAIAssistant,
@@ -31,7 +31,7 @@ export default function AIAssistantTrigger(): JSX.Element | null {
 
 	const handleOpen = useCallback((): void => {
 		void logEvent(AIAssistantEvents.Opened, {
-			source: AIAssistantOpenSource.Icon,
+			source: 'icon',
 			currentPage: normalizePage(pathname),
 		});
 		openAIAssistant();

frontend/src/container/AIAssistant/ConversationView/ConversationView.tsx

@@ -159,7 +159,6 @@ export default function ConversationView({
 				<ConversationSkeleton />
 				<div className={inputWrapperClass}>
 					<ChatInput
-						key={conversationId}
 						onSend={handleSend}
 						disabled
 						autoContexts={autoContexts}
@@ -173,7 +172,6 @@ export default function ConversationView({
 	return (
 		<div className={styles.conversation}>
 			<VirtualizedMessages
-				key={conversationId}
 				conversationId={conversationId}
 				messages={messages}
 				isStreaming={isStreamingHere}
@@ -186,7 +184,6 @@ export default function ConversationView({
 			)}
 			<div className={inputWrapperClass}>
 				<ChatInput
-					key={conversationId}
 					onSend={handleSend}
 					onCancel={handleCancel}
 					disabled={inputDisabled}

frontend/src/container/AIAssistant/components/ApprovalCard/ApprovalCard.tsx

@@ -11,7 +11,6 @@ import {
 	DialogTitle,
 } from '@signozhq/ui/dialog';
 import { ToggleGroup, ToggleGroupItem } from '@signozhq/ui/toggle-group';
-import { TooltipSimple } from '@signozhq/ui/tooltip';
 import type {
 	ApprovalEventDTO,
 	ApprovalEventDTODiff,
@@ -101,16 +100,16 @@ export default function ApprovalCard({
 				<div className={styles.diffSection}>
 					<div className={styles.diffHeader}>
 						<span className={styles.diffHeaderLabel}>Diff</span>
-						<TooltipSimple title="Expand diff">
-							<Button
-								variant="link"
-								size="sm"
-								color="secondary"
-								onClick={(): void => setDiffExpanded(true)}
-								aria-label="Expand diff"
-								prefix={<Maximize2 size={12} />}
-							/>
-						</TooltipSimple>
+						<Button
+							variant="link"
+							size="sm"
+							color="secondary"
+							onClick={(): void => setDiffExpanded(true)}
+							title="Expand diff"
+							aria-label="Expand diff"
+						>
+							<Maximize2 size={12} />
+						</Button>
 					</div>
 					<DiffView diff={approval.diff} />
 				</div>
@@ -120,8 +119,6 @@ export default function ApprovalCard({
 				<DialogContent
 					className={styles.diffDialog}
 					style={{ width: '80vw', maxWidth: '80vw', height: '70vh' }}
-					// Skip auto-focus — otherwise the first Copy button opens its tooltip on dialog open.
-					onOpenAutoFocus={(e): void => e.preventDefault()}
 				>
 					<DialogHeader>
 						<DialogTitle>Approval diff</DialogTitle>
@@ -137,22 +134,19 @@ export default function ApprovalCard({
 								size="sm"
 								value={viewMode}
 								onChange={(next): void => {
-									// Radix `single` group can emit '' when the active item is clicked again.
+									// Radix `single` group can emit '' when the active item
+									// is clicked again — preserve the current mode.
 									if (next === 'split' || next === 'unified') {
 										setViewMode(next);
 									}
 								}}
 							>
-								<TooltipSimple title="Split view">
-									<ToggleGroupItem value="split" aria-label="Split view">
-										<Columns2 size={12} />
-									</ToggleGroupItem>
-								</TooltipSimple>
-								<TooltipSimple title="Unified view">
-									<ToggleGroupItem value="unified" aria-label="Unified view">
-										<List size={12} />
-									</ToggleGroupItem>
-								</TooltipSimple>
+								<ToggleGroupItem value="split" aria-label="Split view">
+									<Columns2 size={12} />
+								</ToggleGroupItem>
+								<ToggleGroupItem value="unified" aria-label="Unified view">
+									<List size={12} />
+								</ToggleGroupItem>
 							</ToggleGroup>
 							<ToggleGroup
 								type="multiple"
@@ -160,16 +154,12 @@ export default function ApprovalCard({
 								value={wrapText ? ['wrap'] : []}
 								onChange={(next): void => setWrapText(next.includes('wrap'))}
 							>
-								<TooltipSimple
-									title={wrapText ? 'Disable text wrap' : 'Wrap long lines'}
+								<ToggleGroupItem
+									value="wrap"
+									aria-label={wrapText ? 'Disable text wrap' : 'Wrap long lines'}
 								>
-									<ToggleGroupItem
-										value="wrap"
-										aria-label={wrapText ? 'Disable text wrap' : 'Wrap long lines'}
-									>
-										<WrapText size={12} />
-									</ToggleGroupItem>
-								</TooltipSimple>
+									<WrapText size={12} />
+								</ToggleGroupItem>
 							</ToggleGroup>
 						</div>
 						{approval.diff && (
@@ -467,16 +457,15 @@ function CopyButton({ text, label }: CopyButtonProps): JSX.Element {
 	};
 
 	return (
-		<TooltipSimple title={copied ? `Copied ${label}` : `Copy ${label}`}>
-			<Button
-				variant="ghost"
-				size="sm"
-				color="secondary"
-				onClick={handleCopy}
-				aria-label={copied ? `Copied ${label}` : `Copy ${label}`}
-			>
-				{copied ? <Check size={12} /> : <Copy size={12} />}
-			</Button>
-		</TooltipSimple>
+		<Button
+			variant="ghost"
+			size="sm"
+			color="secondary"
+			onClick={handleCopy}
+			title={copied ? `Copied ${label}` : `Copy ${label}`}
+			aria-label={copied ? `Copied ${label}` : `Copy ${label}`}
+		>
+			{copied ? <Check size={12} /> : <Copy size={12} />}
+		</Button>
 	);
 }

frontend/src/container/AIAssistant/components/ChatInput/ChatInput.module.scss

@@ -8,7 +8,12 @@
 	border-radius: var(--radius-2);
 	padding: 8px;
 	border: 1px solid var(--l1-border);
+	transition: border-color 0.15s;
 	position: relative;
+
+	&:focus-within {
+		border-color: var(--l1-border);
+	}
 }
 
 .attachments {
@@ -124,18 +129,6 @@
 	border: 1px solid var(--l2-border);
 	border-radius: var(--radius-2);
 	padding: 4px;
-	transition:
-		border-color 0.15s,
-		box-shadow 0.15s;
-
-	// Scope the focus ring to the textarea row only — the surrounding
-	// chrome (context chips, "Add Context", mic, send) sits outside this
-	// element and stays unaffected when the cursor enters the textarea.
-	&:focus-within {
-		border-color: var(--accent-primary);
-		box-shadow: 0 0 0 1px
-			color-mix(in srgb, var(--accent-primary), transparent 70%);
-	}
 }
 
 .footer {
@@ -251,24 +244,16 @@
 }
 
 .contextPopoverCategoryItem {
-	// Override DS Button's centered layout.
-	--button-justify-content: flex-start;
 	display: flex;
 	align-items: center;
-	justify-content: flex-start;
 	gap: 8px;
-	width: 100%;
 	height: 32px;
 	padding: 0 8px;
-	background: transparent;
-	color: inherit;
-	font: inherit;
+	border: 1px solid color-mix(in srgb, var(--l1-foreground), transparent 96%);
+	border-radius: var(--radius-2);
 	font-size: 12px;
 	font-weight: 550;
 	text-align: left;
-	border: 1px solid color-mix(in srgb, var(--l1-foreground), transparent 96%);
-	border-radius: var(--radius-2);
-	appearance: none;
 	cursor: pointer;
 	transition:
 		background 0.15s ease,
@@ -324,24 +309,17 @@
 }
 
 .contextPopoverEntityItem {
-	// Override DS Button's centered layout.
-	--button-justify-content: flex-start;
 	display: flex;
 	align-items: center;
-	justify-content: flex-start;
 	gap: 10px;
-	width: 100%;
 	padding: 8px;
-	background: transparent;
+	border: 1px solid color-mix(in srgb, var(--l1-foreground), transparent 96%);
+	border-radius: var(--radius-2);
 	color: var(--l1-foreground);
-	font: inherit;
 	font-size: 12px;
 	font-weight: 500;
 	line-height: 1.35;
 	text-align: left;
-	border: 1px solid color-mix(in srgb, var(--l1-foreground), transparent 96%);
-	border-radius: var(--radius-2);
-	appearance: none;
 	cursor: pointer;
 	// Required for the inner span's `text-overflow: ellipsis` to engage —
 	// flex items default to `min-width: auto` (intrinsic width) and would
@@ -407,11 +385,6 @@
 	border-radius: 50%;
 	border: none;
 	cursor: pointer;
-	// Reset native <button> defaults so the 24px circle isn't inflated by
-	// browser-default padding / font metrics.
-	padding: 0;
-	font: inherit;
-	appearance: none;
 }
 
 .micDiscard {

frontend/src/container/AIAssistant/components/ChatInput/ChatInput.tsx

@@ -1,10 +1,4 @@
-import {
-	useCallback,
-	useEffect,
-	useLayoutEffect,
-	useRef,
-	useState,
-} from 'react';
+import { useCallback, useEffect, useRef, useState } from 'react';
 import { useQueryClient } from 'react-query';
 import cx from 'classnames';
 import { Badge } from '@signozhq/ui/badge';
@@ -32,11 +26,7 @@ import { useSelector } from 'react-redux';
 import { AppState } from 'store/reducers';
 import { GlobalReducer } from 'types/reducer/globalTime';
 
-import {
-	AIAssistantEvents,
-	VoiceInputSource,
-	getBrowserInfo,
-} from '../../events';
+import { AIAssistantEvents, getBrowserInfo } from '../../events';
 import { useAIAssistantAnalyticsContext } from '../../hooks/useAIAssistantAnalyticsContext';
 import { useSpeechRecognition } from '../../hooks/useSpeechRecognition';
 import { MessageAttachment } from '../../types';
@@ -152,10 +142,6 @@ function autoContextCategory(ctx: MessageContext): string {
 
 const MAX_INPUT_LENGTH = 20000;
 const WARNING_THRESHOLD = 15000;
-// Cap for the auto-growing composer. Past this, the textarea stops growing
-// and starts scrolling internally so the message list above doesn't get
-// squeezed in tighter container variants (e.g. the floating panel).
-const TEXTAREA_MAX_HEIGHT_PX = 200;
 const HOME_SERVICES_INTERVAL = 30 * 60 * 1000;
 /** sessionStorage key for the "voice input failed this tab" flag. */
 const VOICE_UNAVAILABLE_KEY = 'ai-assistant-voice-unavailable';
@@ -238,18 +224,6 @@ export default function ChatInput({
 	const [activeContextCategory, setActiveContextCategory] =
 		useState<ContextCategory>('Dashboards');
 	const [pickerSearchQuery, setPickerSearchQuery] = useState('');
-	// Refs to each category tab so we can move DOM focus to the newly-active
-	// tab on ArrowUp/ArrowDown. Without this the roving-tabindex pattern
-	// stalls: focus stays on the original button (whose closure has the old
-	// category), so subsequent arrow keys never advance past the second tab.
-	const categoryTabRefs = useRef(
-		new Map<ContextCategory, HTMLButtonElement | null>(),
-	);
-	// Refs to each entity row in the active tab panel, so we can cross from
-	// the category tablist (ArrowRight) into the panel and step through
-	// entities with ArrowUp/Down. Array is rewritten each render — there's
-	// only ever one tab panel mounted so stale indices clear naturally.
-	const entityRefs = useRef<(HTMLButtonElement | null)[]>([]);
 	const queryClient = useQueryClient();
 
 	// When the picker was opened by typing `@` in the textarea, this holds the
@@ -329,92 +303,11 @@ export default function ChatInput({
 		[mentionRange, selectedContexts, text],
 	);
 
-	const focusCategory = useCallback((category: ContextCategory) => {
-		setActiveContextCategory(category);
-		setPickerSearchQuery('');
-		categoryTabRefs.current.get(category)?.focus();
-	}, []);
-
-	const handleCategoryKeyDown = useCallback(
-		(
-			e: React.KeyboardEvent<HTMLButtonElement>,
-			category: ContextCategory,
-		): void => {
-			const total = CONTEXT_CATEGORIES.length;
-			const idx = CONTEXT_CATEGORIES.indexOf(category);
-			if (e.key === 'ArrowDown') {
-				e.preventDefault();
-				focusCategory(CONTEXT_CATEGORIES[(idx + 1) % total]);
-			} else if (e.key === 'ArrowUp') {
-				e.preventDefault();
-				focusCategory(CONTEXT_CATEGORIES[(idx - 1 + total) % total]);
-			} else if (e.key === 'Home') {
-				e.preventDefault();
-				focusCategory(CONTEXT_CATEGORIES[0]);
-			} else if (e.key === 'End') {
-				e.preventDefault();
-				focusCategory(CONTEXT_CATEGORIES[total - 1]);
-			} else if (e.key === 'ArrowRight') {
-				// Cross from tablist into entity panel.
-				e.preventDefault();
-				entityRefs.current[0]?.focus();
-			}
-		},
-		[focusCategory],
-	);
-
-	const handleEntityKeyDown = useCallback(
-		(e: React.KeyboardEvent<HTMLButtonElement>, index: number): void => {
-			const count = entityRefs.current.length;
-			if (count === 0) {
-				return;
-			}
-			const focusAt = (i: number): void => {
-				e.preventDefault();
-				entityRefs.current[i]?.focus();
-			};
-			switch (e.key) {
-				case 'ArrowDown':
-					focusAt((index + 1) % count);
-					break;
-				case 'ArrowUp':
-					focusAt((index - 1 + count) % count);
-					break;
-				case 'Home':
-					focusAt(0);
-					break;
-				case 'End':
-					focusAt(count - 1);
-					break;
-				case 'ArrowLeft':
-					// Cross back to tablist.
-					e.preventDefault();
-					categoryTabRefs.current.get(activeContextCategory)?.focus();
-					break;
-				default:
-			}
-		},
-		[activeContextCategory],
-	);
-
 	// Focus the textarea when this component mounts (panel/modal open)
 	useEffect(() => {
 		textareaRef.current?.focus();
 	}, []);
 
-	// Auto-grow the textarea so long prompts aren't trapped in a 2-line
-	// scrolling porthole. Reset to `auto` first to let the field shrink back
-	// down when the user deletes content, then snap to scrollHeight capped at
-	// TEXTAREA_MAX_HEIGHT_PX (overflow-y: auto in CSS handles the rest).
-	useLayoutEffect(() => {
-		const el = textareaRef.current;
-		if (!el) {
-			return;
-		}
-		el.style.height = 'auto';
-		el.style.height = `${Math.min(el.scrollHeight, TEXTAREA_MAX_HEIGHT_PX)}px`;
-	}, [text]);
-
 	const handleSend = useCallback(async () => {
 		const trimmed = text.trim();
 		if (!trimmed && pendingFiles.length === 0) {
@@ -489,7 +382,7 @@ export default function ChatInput({
 	// start time so we can attribute `durationMs` on the Voice input used
 	// event regardless of which control ended the session.
 	const voiceStartedAtRef = useRef<number | null>(null);
-	const voiceSourceRef = useRef<VoiceInputSource | null>(null);
+	const voiceSourceRef = useRef<'button' | 'shortcut' | null>(null);
 	// Set to true after a `network`, `not-allowed`, or `not-supported` failure
 	// so we hide the mic button for the rest of the tab session — silent
 	// retries don't help, and Chromium derivatives without the Google Speech
@@ -566,7 +459,7 @@ export default function ChatInput({
 	const showMic = isSupported && micPermission !== 'denied' && !voiceUnavailable;
 
 	const startVoiceInput = useCallback(
-		(source: VoiceInputSource) => {
+		(source: 'button' | 'shortcut') => {
 			// Defense in depth: the button is hidden when `voiceUnavailable` is
 			// true, but the PTT shortcut listener can still call us. Bailing here
 			// keeps a single source of truth and prevents repeat `Voice input
@@ -643,7 +536,7 @@ export default function ChatInput({
 				return; // ignore auto-repeat
 			}
 			pttActiveRef.current = true;
-			startVoiceInput(VoiceInputSource.Shortcut);
+			startVoiceInput('shortcut');
 		};
 
 		const handleKeyUp = (e: KeyboardEvent): void => {
@@ -831,12 +724,6 @@ export default function ChatInput({
 				entity.value.toLowerCase().includes(activeQuery),
 			)
 		: contextEntitiesByCategory[activeContextCategory];
-	// Truncate the ref array to match the current entity count so that
-	// switching from a large category (e.g. 100 dashboards) to a smaller one
-	// doesn't leave stale `null` slots from earlier renders. Keyboard nav math
-	// already uses `filteredContextOptions.length` for the modulo, so stale
-	// slots wouldn't be reached — this is purely housekeeping.
-	entityRefs.current.length = filteredContextOptions.length;
 	const { isLoading: isActiveContextLoading, isError: isActiveContextError } =
 		contextCategoryStateByCategory[activeContextCategory];
 	const currentLength = text.length;
@@ -943,7 +830,7 @@ export default function ChatInput({
 					onKeyDown={handleKeyDown}
 					disabled={disabled}
 					maxLength={MAX_INPUT_LENGTH}
-					rows={3}
+					rows={2}
 				/>
 			</div>
 			{showTextWarning && (
@@ -990,37 +877,15 @@ export default function ChatInput({
 							sideOffset={8}
 						>
 							<div className={styles.contextPopoverContent}>
-								<div
-									className={styles.contextPopoverCategories}
-									role="tablist"
-									aria-orientation="vertical"
-									aria-label="Context categories"
-								>
+								<div className={styles.contextPopoverCategories}>
 									{CONTEXT_CATEGORIES.map((category) => {
 										const CategoryIcon = CONTEXT_CATEGORY_ICONS[category];
 										const isActive = activeContextCategory === category;
 										return (
-											<Button
+											<div
 												key={category}
-												ref={(el): void => {
-													categoryTabRefs.current.set(category, el);
-												}}
-												type="button"
-												variant="ghost"
-												color="secondary"
-												size="sm"
 												role="tab"
-												id={`ai-context-tab-${category}`}
-												// Single stable panel id shared by every tab: only the
-												// active category's tabpanel is rendered, so per-category
-												// `aria-controls` ids would point at nonexistent nodes
-												// for the two inactive tabs. APG allows a single
-												// dynamic panel whose `aria-labelledby` swaps to the
-												// active tab.
-												aria-controls="ai-context-tabpanel"
-												// Roving tabindex: only the active tab participates in
-												// the Tab sequence; arrow keys move between tabs.
-												tabIndex={isActive ? 0 : -1}
+												tabIndex={0}
 												aria-selected={isActive}
 												className={cx(styles.contextPopoverCategoryItem, {
 													[styles.active]: isActive,
@@ -1029,21 +894,22 @@ export default function ChatInput({
 													setActiveContextCategory(category);
 													setPickerSearchQuery('');
 												}}
-												onKeyDown={(e): void => handleCategoryKeyDown(e, category)}
-												prefix={<CategoryIcon size={13} />}
+												onKeyDown={(e): void => {
+													if (e.key === 'Enter' || e.key === ' ') {
+														e.preventDefault();
+														setActiveContextCategory(category);
+														setPickerSearchQuery('');
+													}
+												}}
 											>
+												<CategoryIcon size={13} />
 												<span>{category}</span>
-											</Button>
+											</div>
 										);
 									})}
 								</div>
 
-								<div
-									className={styles.contextPopoverRight}
-									role="tabpanel"
-									id="ai-context-tabpanel"
-									aria-labelledby={`ai-context-tab-${activeContextCategory}`}
-								>
+								<div className={styles.contextPopoverRight}>
 									<div className={styles.contextPopoverSearch}>
 										<Input
 											type="text"
@@ -1073,7 +939,7 @@ export default function ChatInput({
 												No matching entities
 											</div>
 										) : (
-											filteredContextOptions.map((option, index) => {
+											filteredContextOptions.map((option) => {
 												const isSelected = selectedContexts.some(
 													(item) =>
 														item.category === activeContextCategory &&
@@ -1081,16 +947,8 @@ export default function ChatInput({
 												);
 
 												return (
-													<Button
+													<div
 														key={option.id}
-														ref={(el): void => {
-															entityRefs.current[index] = el;
-														}}
-														type="button"
-														variant="ghost"
-														color="secondary"
-														size="sm"
-														aria-pressed={isSelected}
 														className={cx(styles.contextPopoverEntityItem, {
 															[styles.selected]: isSelected,
 														})}
@@ -1101,12 +959,11 @@ export default function ChatInput({
 																option.value,
 															)
 														}
-														onKeyDown={(e): void => handleEntityKeyDown(e, index)}
 													>
 														<span className={styles.contextPopoverEntityItemText}>
 															{option.value}
 														</span>
-													</Button>
+													</div>
 												);
 											})
 										)}
@@ -1120,24 +977,14 @@ export default function ChatInput({
 				<div className={styles.rightActions}>
 					{showMic &&
 						(isListening ? (
-							<div
-								className={styles.micRecording}
-								role="status"
-								aria-live="polite"
-								aria-label="Recording voice input"
-							>
-								<TooltipSimple title="Discard recording">
-									<Button
-										type="button"
-										variant="ghost"
-										size="icon"
-										color="secondary"
-										className={cx(styles.micDiscard, styles.secondary)}
-										onClick={handleDiscard}
-										aria-label="Discard recording"
-										prefix={<X size={12} />}
-									/>
-								</TooltipSimple>
+							<div className={styles.micRecording}>
+								<div
+									className={cx(styles.micDiscard, styles.secondary)}
+									onClick={handleDiscard}
+									aria-label="Discard recording"
+								>
+									<X size={12} />
+								</div>
 								<span className={styles.micWaves} aria-hidden="true">
 									<span />
 									<span />
@@ -1148,30 +995,26 @@ export default function ChatInput({
 									<span />
 									<span />
 								</span>
-								<TooltipSimple title="Stop and send">
-									<Button
-										type="button"
-										variant="ghost"
-										size="icon"
-										color="destructive"
-										className={cx(styles.micStop, styles.destructive)}
-										onClick={handleStopAndSend}
-										aria-label="Stop and send"
-										prefix={<Square size={9} fill="currentColor" strokeWidth={0} />}
-									/>
-								</TooltipSimple>
+								<div
+									className={cx(styles.micStop, styles.destructive)}
+									onClick={handleStopAndSend}
+									aria-label="Stop and send"
+								>
+									<Square size={9} fill="currentColor" strokeWidth={0} />
+								</div>
 							</div>
 						) : (
 							<TooltipSimple title="Voice input">
 								<Button
 									variant="ghost"
 									size="icon"
-									onClick={(): void => startVoiceInput(VoiceInputSource.Button)}
+									onClick={(): void => startVoiceInput('button')}
 									disabled={disabled}
 									aria-label="Start voice input"
 									className={styles.micBtn}
-									prefix={<Mic size={14} />}
-								/>
+								>
+									<Mic size={14} />
+								</Button>
 							</TooltipSimple>
 						))}
 
@@ -1183,21 +1026,21 @@ export default function ChatInput({
 								color="destructive"
 								onClick={onCancel}
 								aria-label="Stop generating"
-								prefix={<Square size={10} fill="currentColor" strokeWidth={0} />}
-							/>
+							>
+								<Square size={10} fill="currentColor" strokeWidth={0} />
+							</Button>
 						</TooltipSimple>
 					) : (
-						<TooltipSimple title="Send message">
-							<Button
-								variant="solid"
-								size="icon"
-								color="primary"
-								onClick={isListening ? handleStopAndSend : handleSend}
-								disabled={disabled || (!text.trim() && pendingFiles.length === 0)}
-								aria-label="Send message"
-								prefix={<Send size={14} />}
-							/>
-						</TooltipSimple>
+						<Button
+							variant="solid"
+							size="icon"
+							color="primary"
+							onClick={isListening ? handleStopAndSend : handleSend}
+							disabled={disabled || (!text.trim() && pendingFiles.length === 0)}
+							aria-label="Send message"
+						>
+							<Send size={14} />
+						</Button>
 					)}
 				</div>
 			</div>

frontend/src/container/AIAssistant/components/ClarificationForm/ClarificationForm.module.scss

@@ -64,19 +64,6 @@
 	gap: 4px;
 }
 
-// Mirrors `.field` for the multi_select group, but resets the browser's
-// default `<fieldset>` border/padding/margin so the visual matches the
-// `<div>`-based field rows.
-.multiSelectFieldset {
-	display: flex;
-	flex-direction: column;
-	gap: 4px;
-	margin: 0;
-	padding: 0;
-	border: 0;
-	min-width: 0;
-}
-
 .label {
 	font-size: 12px;
 	font-weight: 500;

frontend/src/container/AIAssistant/components/ClarificationForm/ClarificationForm.tsx

@@ -63,14 +63,7 @@ export default function ClarificationForm({
 		setAnswers((prev) => ({ ...prev, [id]: value }));
 	};
 
-	const isFormValid = fields.every(
-		(f) => !f.required || isFieldFilled(f, answers[f.id]),
-	);
-
 	const handleSubmit = async (): Promise<void> => {
-		if (!isFormValid) {
-			return;
-		}
 		setSubmitted(true);
 		// Approximate queryLength as the JSON encoding of the form answers — the
 		// clarification API doesn't render a single user-visible string, but the
@@ -143,7 +136,7 @@ export default function ClarificationForm({
 					variant="solid"
 					color="primary"
 					onClick={handleSubmit}
-					disabled={isStreaming || !isFormValid}
+					disabled={isStreaming}
 					prefix={<Send />}
 				>
 					Submit
@@ -169,9 +162,8 @@ export default function ClarificationForm({
 
 /**
  * Per-type seed value. The DTO's `default` is `string | string[] | null`,
- * which doesn't fit boolean / number fields cleanly — we coerce 'true'/'false'
- * strings for booleans, parse number defaults out of the string form,
- * fall back to `[]` for multi_select, and the raw string otherwise.
+ * which doesn't fit boolean fields cleanly — we coerce 'true'/'false' strings
+ * for them, fall back to `[]` for multi_select, and the raw string otherwise.
  */
 function initialAnswerFor(f: ClarificationFieldEventDTO): unknown {
 	const raw = f.default;
@@ -183,41 +175,9 @@ function initialAnswerFor(f: ClarificationFieldEventDTO): unknown {
 	if (f.type === ClarificationFieldTypeDTO.multi_select) {
 		return Array.isArray(raw) ? raw : [];
 	}
-	if (f.type === ClarificationFieldTypeDTO.number) {
-		// Server sends number defaults as strings (e.g. `"5"`). Parse so the
-		// stored value is a real `number` — otherwise `isFieldFilled` (which
-		// requires `typeof === 'number'`) rejects a visibly-filled field and
-		// Submit stays disabled.
-		if (typeof raw !== 'string' || raw === '') {
-			return null;
-		}
-		const parsed = Number(raw);
-		return Number.isNaN(parsed) ? null : parsed;
-	}
 	return raw ?? '';
 }
 
-// Whether a required field has been answered. Booleans are always considered
-// filled (they're initialised to a concrete true/false). For other types we
-// reject empty strings, empty arrays, NaN numbers, and `null` (which the
-// number input emits when its raw value is `''` — `Number('')` would
-// otherwise silently coerce to `0` and read as a valid answer).
-function isFieldFilled(
-	field: ClarificationFieldEventDTO,
-	value: unknown,
-): boolean {
-	switch (field.type) {
-		case ClarificationFieldTypeDTO.multi_select:
-			return Array.isArray(value) && value.length > 0;
-		case ClarificationFieldTypeDTO.boolean:
-			return true;
-		case ClarificationFieldTypeDTO.number:
-			return typeof value === 'number' && !Number.isNaN(value);
-		default:
-			return typeof value === 'string' && value.trim().length > 0;
-	}
-}
-
 interface FieldInputProps {
 	field: ClarificationFieldEventDTO;
 	value: unknown;
@@ -256,21 +216,13 @@ function FieldInput({ field, value, onChange }: FieldInputProps): JSX.Element {
 			<div className={styles.field}>
 				<label className={styles.label} htmlFor={id}>
 					{label}
-					{required && (
-						<span className={styles.required} aria-hidden="true">
-							*
-						</span>
-					)}
+					{required && <span className={styles.required}>*</span>}
 				</label>
 				<Select
 					value={isCustom ? CUSTOM_OPTION_SENTINEL : String(value ?? '')}
 					onChange={handleSelectChange}
 				>
-					<SelectTrigger
-						id={id}
-						placeholder="Select…"
-						aria-required={required || undefined}
-					/>
+					<SelectTrigger id={id} placeholder="Select…" />
 					{/* Pin the dropdown width to the trigger via Radix's
 					    `--radix-select-trigger-width`; otherwise the popover
 					    sizes to its widest item and looks misaligned. */}
@@ -315,11 +267,7 @@ function FieldInput({ field, value, onChange }: FieldInputProps): JSX.Element {
 					onChange={(): void => onChange(!checked)}
 				>
 					{label}
-					{required && (
-						<span className={styles.required} aria-hidden="true">
-							*
-						</span>
-					)}
+					{required && <span className={styles.required}>*</span>}
 				</Checkbox>
 			</div>
 		);
@@ -364,21 +312,11 @@ function FieldInput({ field, value, onChange }: FieldInputProps): JSX.Element {
 		};
 
 		return (
-			// `fieldset` + `legend` is the WCAG-recommended grouping for
-			// related checkboxes (1.3.1). SRs announce the legend before each
-			// option, so users hear the group label as context.
-			<fieldset
-				className={styles.multiSelectFieldset}
-				aria-required={required || undefined}
-			>
-				<legend className={styles.label}>
+			<div className={styles.field}>
+				<span className={styles.label}>
 					{label}
-					{required && (
-						<span className={styles.required} aria-hidden="true">
-							*
-						</span>
-					)}
-				</legend>
+					{required && <span className={styles.required}>*</span>}
+				</span>
 				<div className={styles.checkboxGroup}>
 					{options?.map((opt) => (
 						<Checkbox
@@ -409,7 +347,7 @@ function FieldInput({ field, value, onChange }: FieldInputProps): JSX.Element {
 						onChange={(e): void => updateCustomValue(e.target.value)}
 					/>
 				)}
-			</fieldset>
+			</div>
 		);
 	}
 
@@ -418,29 +356,16 @@ function FieldInput({ field, value, onChange }: FieldInputProps): JSX.Element {
 		<div className={styles.field}>
 			<label className={styles.label} htmlFor={id}>
 				{label}
-				{required && (
-					<span className={styles.required} aria-hidden="true">
-						*
-					</span>
-				)}
+				{required && <span className={styles.required}>*</span>}
 			</label>
 			<Input
 				id={id}
 				type={type === 'number' ? 'number' : 'text'}
 				className={styles.input}
 				value={String(value ?? '')}
-				aria-required={required || undefined}
-				onChange={(e): void => {
-					if (type === 'number') {
-						const raw = e.target.value;
-						// Map empty input to `null` instead of `Number('') === 0`
-						// so a required numeric field cleared after typing doesn't
-						// silently read as a valid `0` in `isFieldFilled`.
-						onChange(raw === '' ? null : Number(raw));
-					} else {
-						onChange(e.target.value);
-					}
-				}}
+				onChange={(e): void =>
+					onChange(type === 'number' ? Number(e.target.value) : e.target.value)
+				}
 				placeholder={label}
 			/>
 		</div>

frontend/src/container/AIAssistant/components/MessageFeedback/MessageFeedback.tsx

@@ -10,7 +10,6 @@ import { useTimezone } from 'providers/Timezone';
 
 import logEvent from 'api/common/logEvent';
 
-import { FeedbackRatingDTO } from 'api/ai-assistant/sigNozAIAssistantAPI.schemas';
 import { AIAssistantEvents } from '../../events';
 import { useAIAssistantAnalyticsContext } from '../../hooks/useAIAssistantAnalyticsContext';
 import { useAIAssistantStore } from '../../store/useAIAssistantStore';
@@ -18,22 +17,6 @@ import { FeedbackRating, Message } from '../../types';
 
 import styles from './MessageFeedback.module.scss';
 
-const FEEDBACK_ANALYTICS_RATING = {
-	[FeedbackRatingDTO.positive]: 'up',
-	[FeedbackRatingDTO.negative]: 'down',
-} as const;
-
-const VOTE_LABEL = {
-	[FeedbackRatingDTO.positive]: {
-		tooltip: 'Good response',
-		ariaLabel: 'Good response',
-	},
-	[FeedbackRatingDTO.negative]: {
-		tooltip: 'Bad response',
-		ariaLabel: 'Bad response',
-	},
-} as const;
-
 interface MessageFeedbackProps {
 	message: Message;
 	onRegenerate?: () => void;
@@ -134,7 +117,7 @@ export default function MessageFeedback({
 			if (vote === rating) {
 				return;
 			}
-			if (rating === FeedbackRatingDTO.negative) {
+			if (rating === 'negative') {
 				setNegativeComment('');
 				setIsNegativeDialogOpen(true);
 				return;
@@ -143,7 +126,7 @@ export default function MessageFeedback({
 			void logEvent(AIAssistantEvents.FeedbackSubmitted, {
 				messageId: message.id,
 				threadId,
-				rating: FEEDBACK_ANALYTICS_RATING[rating],
+				rating: 'up',
 				hasComment: false,
 				commentLength: 0,
 			});
@@ -153,21 +136,17 @@ export default function MessageFeedback({
 	);
 
 	const handleSubmitNegative = useCallback((): void => {
-		setVote(FeedbackRatingDTO.negative);
+		setVote('negative');
 		setIsNegativeDialogOpen(false);
 		const trimmed = negativeComment.trim();
 		void logEvent(AIAssistantEvents.FeedbackSubmitted, {
 			messageId: message.id,
 			threadId,
-			rating: FEEDBACK_ANALYTICS_RATING[FeedbackRatingDTO.negative],
+			rating: 'down',
 			hasComment: trimmed.length > 0,
 			commentLength: trimmed.length,
 		});
-		submitMessageFeedback(
-			message.id,
-			FeedbackRatingDTO.negative,
-			trimmed || undefined,
-		);
+		submitMessageFeedback(message.id, 'negative', trimmed || undefined);
 	}, [message.id, negativeComment, submitMessageFeedback, threadId]);
 
 	return (
@@ -181,39 +160,32 @@ export default function MessageFeedback({
 							variant="ghost"
 							onClick={handleCopy}
 							color="secondary"
-							aria-label={copied ? 'Copied' : 'Copy message'}
 						>
 							{copied ? <Check size={12} /> : <Copy size={12} />}
 						</Button>
 					</TooltipSimple>
 
-					<TooltipSimple title={VOTE_LABEL[FeedbackRatingDTO.positive].tooltip}>
+					<TooltipSimple title="Good response">
 						<Button
-							className={cx(styles.btn, {
-								[styles.votedUp]: vote === FeedbackRatingDTO.positive,
-							})}
+							className={cx(styles.btn, { [styles.votedUp]: vote === 'positive' })}
 							size="icon"
 							variant="ghost"
 							color="secondary"
-							onClick={(): void => handleVote(FeedbackRatingDTO.positive)}
-							aria-label={VOTE_LABEL[FeedbackRatingDTO.positive].ariaLabel}
-							aria-pressed={vote === FeedbackRatingDTO.positive}
+							onClick={(): void => handleVote('positive')}
 						>
 							<ThumbsUp size={12} />
 						</Button>
 					</TooltipSimple>
 
-					<TooltipSimple title={VOTE_LABEL[FeedbackRatingDTO.negative].tooltip}>
+					<TooltipSimple title="Bad response">
 						<Button
 							className={cx(styles.btn, {
-								[styles.votedDown]: vote === FeedbackRatingDTO.negative,
+								[styles.votedDown]: vote === 'negative',
 							})}
 							size="icon"
 							variant="ghost"
 							color="secondary"
-							onClick={(): void => handleVote(FeedbackRatingDTO.negative)}
-							aria-label={VOTE_LABEL[FeedbackRatingDTO.negative].ariaLabel}
-							aria-pressed={vote === FeedbackRatingDTO.negative}
+							onClick={(): void => handleVote('negative')}
 						>
 							<ThumbsDown size={12} />
 						</Button>
@@ -227,7 +199,6 @@ export default function MessageFeedback({
 								variant="ghost"
 								color="secondary"
 								onClick={onRegenerate}
-								aria-label="Regenerate response"
 							>
 								<RefreshCw size={12} />
 							</Button>

frontend/src/container/AIAssistant/components/UserMessageActions/UserMessageActions.tsx

@@ -47,7 +47,6 @@ export default function UserMessageActions({
 					variant="ghost"
 					color="secondary"
 					onClick={handleCopy}
-					aria-label={copied ? 'Copied' : 'Copy message'}
 				>
 					{copied ? <Check size={12} /> : <Copy size={12} />}
 				</Button>

frontend/src/container/AIAssistant/components/VirtualizedMessages/VirtualizedMessages.tsx

@@ -90,16 +90,6 @@ export default function VirtualizedMessages({
 
 	const virtuosoRef = useRef<VirtuosoHandle>(null);
 	const scrollerRef = useRef<HTMLElement | Window | null>(null);
-	// Tracks whether the scroller is pinned to (or near) the bottom. Updated
-	// via Virtuoso's `atBottomStateChange` so we can stop force-scrolling the
-	// user back down when they've intentionally scrolled up to read earlier
-	// content.
-	const atBottomRef = useRef(true);
-	// Id of the latest user message we've already anchored to. Used to detect
-	// a fresh user send so we can re-anchor to the bottom regardless of where
-	// the user was scrolled — sending a message and not seeing it is worse
-	// than the anti-yank guarantee.
-	const lastSeenUserMessageIdRef = useRef<string | null>(null);
 
 	const handleRegenerate = useCallback(
 		(messageId: string): void => {
@@ -121,25 +111,8 @@ export default function VirtualizedMessages({
 	// align: 'end')` would only reach the last item's bottom and leave the
 	// padding hidden below the fold. Use `auto` while streaming so the bottom
 	// stays glued as text deltas arrive; `smooth` lags when triggered every
-	// few ms. Bail out if the user has scrolled away from the bottom — that's
-	// an explicit signal they want to read earlier content without being
-	// yanked back.
+	// few ms.
 	useEffect(() => {
-		const lastMessage = messages[messages.length - 1];
-		const isFreshUserSend =
-			lastMessage?.role === 'user' &&
-			lastMessage.id !== lastSeenUserMessageIdRef.current;
-		if (isFreshUserSend) {
-			lastSeenUserMessageIdRef.current = lastMessage.id;
-			// Re-anchor so the user sees their own send (and the assistant's
-			// follow-up streaming) even if they were reading history when they
-			// hit Enter.
-			atBottomRef.current = true;
-		}
-
-		if (!atBottomRef.current) {
-			return;
-		}
 		const scroller = scrollerRef.current;
 		if (!(scroller instanceof HTMLElement)) {
 			return;
@@ -149,7 +122,7 @@ export default function VirtualizedMessages({
 			behavior: isStreaming ? 'auto' : 'smooth',
 		});
 	}, [
-		messages,
+		messages.length,
 		streamingEvents.length,
 		streamingContentLength,
 		isStreaming,
@@ -159,18 +132,14 @@ export default function VirtualizedMessages({
 
 	const followOutput = useCallback(
 		(atBottom: boolean): false | 'auto' | 'smooth' => {
-			if (!atBottom) {
-				return false;
+			if (isStreaming) {
+				return 'auto';
 			}
-			return isStreaming ? 'auto' : 'smooth';
+			return atBottom ? 'smooth' : false;
 		},
 		[isStreaming],
 	);
 
-	const handleAtBottomStateChange = useCallback((atBottom: boolean): void => {
-		atBottomRef.current = atBottom;
-	}, []);
-
 	const showStreamingSlot =
 		isStreaming || Boolean(pendingApproval) || Boolean(pendingClarification);
 
@@ -219,8 +188,6 @@ export default function VirtualizedMessages({
 			className={styles.messages}
 			totalCount={totalCount}
 			followOutput={followOutput}
-			atBottomStateChange={handleAtBottomStateChange}
-			atBottomThreshold={64}
 			initialTopMostItemIndex={Math.max(0, totalCount - 1)}
 			itemContent={(index): JSX.Element => {
 				if (index < messages.length) {

frontend/src/container/AIAssistant/components/blocks/RichCodeBlock/RichCodeBlock.tsx

@@ -1,7 +1,6 @@
 import React, { useEffect, useRef, useState } from 'react';
 import { useCopyToClipboard } from 'react-use';
 import { Button } from '@signozhq/ui/button';
-import { TooltipSimple } from '@signozhq/ui/tooltip';
 import { Check, Copy } from '@signozhq/icons';
 import SyntaxHighlighter, {
 	a11yDark,
@@ -127,17 +126,16 @@ function CopyButton({ text }: { text: string }): JSX.Element {
 	};
 
 	return (
-		<TooltipSimple title={copied ? 'Copied' : 'Copy code'}>
-			<Button
-				variant="ghost"
-				size="sm"
-				color="secondary"
-				className={styles.copyBtn}
-				onClick={handleCopy}
-				aria-label={copied ? 'Copied' : 'Copy code'}
-			>
-				{copied ? <Check size={12} /> : <Copy size={12} />}
-			</Button>
-		</TooltipSimple>
+		<Button
+			variant="ghost"
+			size="sm"
+			color="secondary"
+			className={styles.copyBtn}
+			onClick={handleCopy}
+			title={copied ? 'Copied' : 'Copy code'}
+			aria-label={copied ? 'Copied' : 'Copy code'}
+		>
+			{copied ? <Check size={12} /> : <Copy size={12} />}
+		</Button>
 	);
 }

frontend/src/container/AIAssistant/events.ts

@@ -63,26 +63,6 @@ export const SuggestedPromptCategory = {
 export type SuggestedPromptCategory =
 	(typeof SuggestedPromptCategory)[keyof typeof SuggestedPromptCategory];
 
-// `source` attribute on the AI Assistant `Opened` event — describes which
-// surface triggered the open. Keep values stable: dashboards downstream
-// depend on the literal strings.
-export const AIAssistantOpenSource = {
-	Icon: 'icon',
-	Shortcut: 'shortcut',
-	Cmdk: 'cmdk',
-} as const;
-export type AIAssistantOpenSource =
-	(typeof AIAssistantOpenSource)[keyof typeof AIAssistantOpenSource];
-
-// `source` attribute on the `VoiceInputUsed` event — which surface initiated
-// the recording.
-export const VoiceInputSource = {
-	Button: 'button',
-	Shortcut: 'shortcut',
-} as const;
-export type VoiceInputSource =
-	(typeof VoiceInputSource)[keyof typeof VoiceInputSource];
-
 export enum AIAssistantEvents {
 	Opened = 'AI Assistant: Opened',
 	MessageSent = 'AI Assistant: Message sent',

frontend/src/container/AppLayout/utils.ts

@@ -1,32 +1,9 @@
 import ROUTES from 'constants/routes';
 
-const PARAM_SEGMENT = /:[^/]+/g;
-const REGEX_SPECIALS = /[.+*?^$()[\]{}|\\]/g;
-
-function templateToRegex(template: string): RegExp {
-	const pattern = template
-		.replace(REGEX_SPECIALS, '\\$&')
-		.replace(PARAM_SEGMENT, '[^/]+');
-	return new RegExp(`^${pattern}$`);
-}
-
 export function getRouteKey(pathname: string): string {
-	const entries = Object.entries(ROUTES);
+	const [routeKey] = Object.entries(ROUTES).find(
+		([, value]) => value === pathname,
+	) || ['DEFAULT'];
 
-	const exact = entries.find(([, value]) => value === pathname);
-	if (exact) {
-		return exact[0];
-	}
-
-	// First template that matches wins, so declaration order in `ROUTES`
-	// matters when templates can overlap. Today's set is unambiguous because
-	// `[^/]+` is segment-bounded, but if you ever add a sibling like
-	// `/services/list` next to `SERVICE_METRICS: '/services/:servicename'`,
-	// list the more-specific (more-static-segments) entry first in `ROUTES`
-	// — otherwise the param template will swallow the static path.
-	const dynamic = entries.find(
-		([, value]) => value.includes(':') && templateToRegex(value).test(pathname),
-	);
-
-	return dynamic?.[0] ?? 'DEFAULT';
+	return routeKey;
 }

frontend/src/container/MySettings/__tests__/MySettings.test.tsx

@@ -12,8 +12,6 @@ import APIError from 'types/api/error';
 import { toast } from '@signozhq/ui/sonner';
 
 const toggleThemeFunction = jest.fn();
-const setThemeFunction = jest.fn();
-const setAutoSwitchFunction = jest.fn();
 const logEventFunction = jest.fn();
 const copyToClipboardFn = jest.fn();
 const editUserFn = jest.fn();
@@ -58,11 +56,9 @@ jest.mock('hooks/useDarkMode', () => ({
 	useIsDarkMode: jest.fn(() => true),
 	useSystemTheme: jest.fn(() => 'dark'),
 	default: jest.fn(() => ({
-		theme: 'dark',
-		setTheme: setThemeFunction,
 		toggleTheme: toggleThemeFunction,
 		autoSwitch: false,
-		setAutoSwitch: setAutoSwitchFunction,
+		setAutoSwitch: jest.fn(),
 	})),
 }));
 
@@ -138,8 +134,7 @@ describe('MySettings Flows', () => {
 			fireEvent.click(lightOption);
 
 			await waitFor(() => {
-				expect(setAutoSwitchFunction).toHaveBeenCalledWith(false);
-				expect(setThemeFunction).toHaveBeenCalledWith('light');
+				expect(toggleThemeFunction).toHaveBeenCalled();
 				expect(logEventFunction).toHaveBeenCalledWith(
 					'Account Settings: Theme Changed',
 					{
@@ -147,10 +142,6 @@ describe('MySettings Flows', () => {
 					},
 				);
 			});
-
-			// Lock in that the new selectTheme flow does not call toggleTheme;
-			// otherwise we'd double-flip on top of the explicit setTheme call.
-			expect(toggleThemeFunction).not.toHaveBeenCalled();
 		});
 	});
 

frontend/src/container/MySettings/index.tsx

@@ -8,8 +8,6 @@ import updateUserPreference from 'api/v1/user/preferences/name/update';
 import { AxiosError } from 'axios';
 import { USER_PREFERENCES } from 'constants/userPreferences';
 import useThemeMode, { useIsDarkMode, useSystemTheme } from 'hooks/useDarkMode';
-import { THEME_MODE, ThemeMode } from 'hooks/useDarkMode/constant';
-import { useThemeSelection } from 'hooks/useDarkMode/useThemeSelection';
 import { useNotifications } from 'hooks/useNotifications';
 import { MonitorCog, Moon, Sun } from '@signozhq/icons';
 import { useAppContext } from 'providers/App/App';
@@ -25,10 +23,9 @@ import './MySettings.styles.scss';
 function MySettings(): JSX.Element {
 	const isDarkMode = useIsDarkMode();
 	const { userPreferences, updateUserPreferenceInContext } = useAppContext();
-	const { autoSwitch } = useThemeMode();
+	const { toggleTheme, autoSwitch, setAutoSwitch } = useThemeMode();
 	const systemTheme = useSystemTheme();
 	const { notifications } = useNotifications();
-	const selectTheme = useThemeSelection();
 
 	const [sideNavPinned, setSideNavPinned] = useState(false);
 
@@ -61,7 +58,7 @@ function MySettings(): JSX.Element {
 					<Moon data-testid="dark-theme-icon" size={12} /> Dark{' '}
 				</div>
 			),
-			value: THEME_MODE.DARK,
+			value: 'dark',
 		},
 		{
 			label: (
@@ -72,7 +69,7 @@ function MySettings(): JSX.Element {
 					</Tag>
 				</div>
 			),
-			value: THEME_MODE.LIGHT,
+			value: 'light',
 		},
 		{
 			label: (
@@ -80,31 +77,46 @@ function MySettings(): JSX.Element {
 					<MonitorCog size={12} data-testid="auto-theme-icon" /> System{' '}
 				</div>
 			),
-			value: THEME_MODE.SYSTEM,
+			value: 'auto',
 		},
 	];
 
 	const [theme, setTheme] = useState(() => {
 		if (autoSwitch) {
-			return THEME_MODE.SYSTEM;
+			return 'auto';
 		}
-		return isDarkMode ? THEME_MODE.DARK : THEME_MODE.LIGHT;
+		return isDarkMode ? 'dark' : 'light';
 	});
 
-	const handleThemeChange = (event: RadioChangeEvent): void => {
-		// Radio options below are all THEME_MODE values, so antd's `any`-typed
-		// target.value is safe to narrow here.
-		const value = event.target.value as ThemeMode;
-		logEvent('Account Settings: Theme Changed', { theme: value });
-		selectTheme(value);
+	const handleThemeChange = ({ target: { value } }: RadioChangeEvent): void => {
+		logEvent('Account Settings: Theme Changed', {
+			theme: value,
+		});
+		setTheme(value);
+
+		if (value === 'auto') {
+			setAutoSwitch(true);
+		} else {
+			setAutoSwitch(false);
+			// Only toggle if the current theme is different from the target
+			const targetIsDark = value === 'dark';
+			if (targetIsDark !== isDarkMode) {
+				toggleTheme();
+			}
+		}
 	};
 
 	useEffect(() => {
 		if (autoSwitch) {
-			setTheme(THEME_MODE.SYSTEM);
+			setTheme('auto');
 			return;
 		}
-		setTheme(isDarkMode ? THEME_MODE.DARK : THEME_MODE.LIGHT);
+
+		if (isDarkMode) {
+			setTheme('dark');
+		} else {
+			setTheme('light');
+		}
 	}, [autoSwitch, isDarkMode]);
 
 	const handleSideNavPinnedChange = (checked: boolean): void => {

frontend/src/hooks/useDarkMode/__tests__/useThemeSelection.test.tsx

@@ -1,164 +0,0 @@
-import { act, renderHook } from '@testing-library/react';
-
-import { useThemeSelection } from '../useThemeSelection';
-
-const setThemeMock = jest.fn();
-const setAutoSwitchMock = jest.fn();
-let themeValue = 'dark';
-let systemThemeValue: 'dark' | 'light' = 'light';
-
-jest.mock('hooks/useDarkMode', () => ({
-	__esModule: true,
-	default: (): {
-		theme: string;
-		setTheme: jest.Mock;
-		setAutoSwitch: jest.Mock;
-		toggleTheme: jest.Mock;
-		autoSwitch: boolean;
-	} => ({
-		theme: themeValue,
-		setTheme: setThemeMock,
-		setAutoSwitch: setAutoSwitchMock,
-		toggleTheme: jest.fn(),
-		autoSwitch: false,
-	}),
-	useThemeMode: (): {
-		theme: string;
-		setTheme: jest.Mock;
-		setAutoSwitch: jest.Mock;
-		toggleTheme: jest.Mock;
-		autoSwitch: boolean;
-	} => ({
-		theme: themeValue,
-		setTheme: setThemeMock,
-		setAutoSwitch: setAutoSwitchMock,
-		toggleTheme: jest.fn(),
-		autoSwitch: false,
-	}),
-	useSystemTheme: (): 'dark' | 'light' => systemThemeValue,
-	useIsDarkMode: (): boolean => themeValue === 'dark',
-}));
-
-const canAnimateMock = jest.fn();
-const runTransitionMock = jest.fn();
-
-jest.mock('utils/themeTransition', () => ({
-	__esModule: true,
-	canAnimateThemeTransition: (): boolean => canAnimateMock(),
-	runThemeTransition: (cb: () => void): void => runTransitionMock(cb),
-}));
-
-describe('useThemeSelection', () => {
-	beforeEach(() => {
-		jest.clearAllMocks();
-		themeValue = 'dark';
-		systemThemeValue = 'light';
-		canAnimateMock.mockReturnValue(false);
-		// Default behaviour: invoke the applyChange callback synchronously.
-		runTransitionMock.mockImplementation((cb: () => void) => cb());
-	});
-
-	it('applies an explicit light theme without auto-switch', () => {
-		themeValue = 'dark';
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('light'));
-
-		expect(setAutoSwitchMock).toHaveBeenCalledWith(false);
-		expect(setThemeMock).toHaveBeenCalledWith('light');
-	});
-
-	it('applies an explicit dark theme without auto-switch', () => {
-		themeValue = 'light';
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('dark'));
-
-		expect(setAutoSwitchMock).toHaveBeenCalledWith(false);
-		expect(setThemeMock).toHaveBeenCalledWith('dark');
-	});
-
-	it('SYSTEM with a light system preference resolves to setTheme("light") + auto on', () => {
-		themeValue = 'dark';
-		systemThemeValue = 'light';
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('auto'));
-
-		expect(setAutoSwitchMock).toHaveBeenCalledWith(true);
-		// Explicit resolved value is what keeps the wipe snapshot accurate;
-		// see the comment in useThemeSelection for the failure mode.
-		expect(setThemeMock).toHaveBeenCalledWith('light');
-	});
-
-	it('SYSTEM with a dark system preference resolves to setTheme("dark") + auto on', () => {
-		themeValue = 'light';
-		systemThemeValue = 'dark';
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('auto'));
-
-		expect(setAutoSwitchMock).toHaveBeenCalledWith(true);
-		expect(setThemeMock).toHaveBeenCalledWith('dark');
-	});
-
-	it('invokes onApplied inside the same batch, after the state mutations', () => {
-		themeValue = 'dark';
-		const onApplied = jest.fn();
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('light', onApplied));
-
-		expect(onApplied).toHaveBeenCalledTimes(1);
-		expect(setThemeMock.mock.invocationCallOrder[0]).toBeLessThan(
-			onApplied.mock.invocationCallOrder[0],
-		);
-	});
-
-	it('routes through runThemeTransition when the dark↔light state actually flips', () => {
-		themeValue = 'dark';
-		canAnimateMock.mockReturnValue(true);
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('light'));
-
-		expect(runTransitionMock).toHaveBeenCalledTimes(1);
-		expect(setThemeMock).toHaveBeenCalledWith('light');
-	});
-
-	it('skips runThemeTransition when no dark↔light flip happens', () => {
-		themeValue = 'dark';
-		canAnimateMock.mockReturnValue(true);
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('dark'));
-
-		expect(runTransitionMock).not.toHaveBeenCalled();
-		// applyChange still ran inline.
-		expect(setThemeMock).toHaveBeenCalledWith('dark');
-	});
-
-	it('skips runThemeTransition when SYSTEM resolves to the currently-rendered theme', () => {
-		themeValue = 'dark';
-		systemThemeValue = 'dark';
-		canAnimateMock.mockReturnValue(true);
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('auto'));
-
-		expect(runTransitionMock).not.toHaveBeenCalled();
-		expect(setAutoSwitchMock).toHaveBeenCalledWith(true);
-		expect(setThemeMock).toHaveBeenCalledWith('dark');
-	});
-
-	it('skips runThemeTransition when capability check is false even if the theme flips', () => {
-		themeValue = 'dark';
-		canAnimateMock.mockReturnValue(false);
-		const { result } = renderHook(() => useThemeSelection());
-
-		act(() => result.current('light'));
-
-		expect(runTransitionMock).not.toHaveBeenCalled();
-		expect(setThemeMock).toHaveBeenCalledWith('light');
-	});
-});

frontend/src/hooks/useDarkMode/constant.ts

@@ -2,6 +2,4 @@ export const THEME_MODE = {
 	LIGHT: 'light',
 	DARK: 'dark',
 	SYSTEM: 'auto',
-} as const;
-
-export type ThemeMode = typeof THEME_MODE[keyof typeof THEME_MODE];
+};

frontend/src/hooks/useDarkMode/index.tsx

@@ -18,13 +18,7 @@ import { LOCALSTORAGE } from 'constants/localStorage';
 
 import { THEME_MODE } from './constant';
 
-export const ThemeContext = createContext<{
-	theme: string;
-	toggleTheme: () => void;
-	autoSwitch: boolean;
-	setAutoSwitch: Dispatch<SetStateAction<boolean>>;
-	setTheme: Dispatch<SetStateAction<string>>;
-}>({
+export const ThemeContext = createContext({
 	theme: THEME_MODE.DARK,
 	toggleTheme: (): void => {},
 	autoSwitch: false,

frontend/src/hooks/useDarkMode/useThemeSelection.ts

@@ -1,67 +0,0 @@
-import { useCallback } from 'react';
-import {
-	canAnimateThemeTransition,
-	runThemeTransition,
-} from 'utils/themeTransition';
-
-import useThemeMode, { useSystemTheme } from './index';
-import { THEME_MODE, ThemeMode } from './constant';
-
-type SelectTheme = (value: ThemeMode, onApplied?: () => void) => void;
-
-// Centralises the "apply a theme selection" flow used by MySettings and the
-// command palette: figures out whether the visible (dark↔light) theme is
-// actually flipping, applies the state change, and — when capable — wraps the
-// change in a left→right view-transition wipe.
-//
-// `value` is one of THEME_MODE.{LIGHT,DARK,SYSTEM}; `onApplied` runs inside the
-// same flushSync batch as the theme change (useful for, e.g., closing the
-// command palette so its dismissal is part of the captured "new" snapshot).
-export function useThemeSelection(): SelectTheme {
-	const { theme, setTheme, setAutoSwitch } = useThemeMode();
-	const systemTheme = useSystemTheme();
-
-	return useCallback<SelectTheme>(
-		(value, onApplied) => {
-			const currentIsDark = theme === THEME_MODE.DARK;
-
-			// When switching to SYSTEM, the visible theme flips iff the OS preference
-			// differs from what we're currently rendering. For explicit LIGHT/DARK,
-			// resolvedTargetIsDark is just (value === DARK).
-			const resolvedTargetIsDark =
-				value === THEME_MODE.SYSTEM
-					? systemTheme === THEME_MODE.DARK
-					: value === THEME_MODE.DARK;
-			const isSystem = value === THEME_MODE.SYSTEM;
-
-			// Always push the resolved LIGHT/DARK through setTheme synchronously so
-			// the View Transition snapshot reflects the new theme. If we relied on
-			// ThemeProvider's effect (setAutoSwitch → re-render → effect →
-			// setThemeState), the flip wouldn't be guaranteed to run inside this
-			// flushSync batch and the wipe would capture old → old, then snap.
-			const resolvedTheme = resolvedTargetIsDark
-				? THEME_MODE.DARK
-				: THEME_MODE.LIGHT;
-
-			// runThemeTransition needs a zero-arg callback, so this closure is
-			// unavoidable. It allocates once per selection — cheap enough that
-			// micro-optimising it would just obscure the flow.
-			const apply = (): void => {
-				setAutoSwitch(isSystem);
-				setTheme(resolvedTheme);
-				onApplied?.();
-			};
-
-			const willFlipDarkMode = resolvedTargetIsDark !== currentIsDark;
-			if (!willFlipDarkMode || !canAnimateThemeTransition()) {
-				apply();
-				return;
-			}
-
-			runThemeTransition(apply);
-		},
-		[theme, systemTheme, setTheme, setAutoSwitch],
-	);
-}
-
-export default useThemeSelection;

frontend/src/styles.scss

@@ -826,22 +826,3 @@ body.ai-assistant-panel-open {
 :root {
 	--input-focus-outline-width: 0;
 }
-
-// Scoped to .theme-wipe-active (toggled on <html> in runThemeTransition) so
-// these overrides don't leak into any unrelated view transitions added later.
-// We disable the default UA crossfade so the JS-driven clip-path wipe is the
-// only visible effect, and stack the new snapshot above the old.
-html.theme-wipe-active {
-	&::view-transition-old(root),
-	&::view-transition-new(root) {
-		animation: none;
-	}
-
-	&::view-transition-old(root) {
-		z-index: 1;
-	}
-
-	&::view-transition-new(root) {
-		z-index: 2;
-	}
-}

frontend/src/utils/__tests__/themeTransition.test.ts

@@ -1,193 +0,0 @@
-import {
-	canAnimateThemeTransition,
-	runThemeTransition,
-	THEME_WIPE_ACTIVE_CLASS,
-} from '../themeTransition';
-
-type StartVT = (cb: () => void) => {
-	ready: Promise<void>;
-	finished: Promise<void>;
-};
-
-const installStartViewTransition = (impl?: StartVT): jest.Mock => {
-	const defaultImpl: StartVT = (cb) => {
-		cb();
-		return { ready: Promise.resolve(), finished: Promise.resolve() };
-	};
-	const fn = jest.fn(impl ?? defaultImpl);
-	Object.defineProperty(document, 'startViewTransition', {
-		configurable: true,
-		writable: true,
-		value: fn,
-	});
-	return fn;
-};
-
-const removeStartViewTransition = (): void => {
-	Object.defineProperty(document, 'startViewTransition', {
-		configurable: true,
-		writable: true,
-		value: undefined,
-	});
-};
-
-const setReducedMotion = (matches: boolean): void => {
-	(window.matchMedia as jest.Mock) = jest
-		.fn()
-		.mockImplementation((query: string) => ({
-			matches: query === '(prefers-reduced-motion: reduce)' ? matches : false,
-			media: query,
-			addListener: jest.fn(),
-			removeListener: jest.fn(),
-			addEventListener: jest.fn(),
-			removeEventListener: jest.fn(),
-			dispatchEvent: jest.fn(),
-		}));
-};
-
-describe('canAnimateThemeTransition', () => {
-	afterEach(() => {
-		removeStartViewTransition();
-	});
-
-	it('returns false when document.startViewTransition is unavailable', () => {
-		removeStartViewTransition();
-		setReducedMotion(false);
-		expect(canAnimateThemeTransition()).toBe(false);
-	});
-
-	it('returns false when prefers-reduced-motion is reduce', () => {
-		installStartViewTransition();
-		setReducedMotion(true);
-		expect(canAnimateThemeTransition()).toBe(false);
-	});
-
-	it('returns true when API is supported and motion is allowed', () => {
-		installStartViewTransition();
-		setReducedMotion(false);
-		expect(canAnimateThemeTransition()).toBe(true);
-	});
-});
-
-describe('runThemeTransition', () => {
-	afterEach(() => {
-		removeStartViewTransition();
-		document.documentElement.classList.remove(THEME_WIPE_ACTIVE_CLASS);
-	});
-
-	it('falls back to running applyChange directly when API is missing', () => {
-		removeStartViewTransition();
-		const applyChange = jest.fn();
-		runThemeTransition(applyChange);
-		expect(applyChange).toHaveBeenCalledTimes(1);
-		expect(
-			document.documentElement.classList.contains(THEME_WIPE_ACTIVE_CLASS),
-		).toBe(false);
-	});
-
-	it('invokes startViewTransition and runs applyChange inside its callback', () => {
-		const startVT = installStartViewTransition();
-		const applyChange = jest.fn();
-		runThemeTransition(applyChange);
-		expect(startVT).toHaveBeenCalledTimes(1);
-		expect(applyChange).toHaveBeenCalledTimes(1);
-	});
-
-	it('toggles the wipe-active class on <html> for the lifetime of the transition', async () => {
-		let resolveFinished: () => void = (): void => {};
-		installStartViewTransition((cb) => {
-			cb();
-			return {
-				ready: Promise.resolve(),
-				finished: new Promise<void>((resolve) => {
-					resolveFinished = resolve;
-				}),
-			};
-		});
-
-		runThemeTransition(() => undefined);
-
-		expect(
-			document.documentElement.classList.contains(THEME_WIPE_ACTIVE_CLASS),
-		).toBe(true);
-
-		resolveFinished();
-		await Promise.resolve();
-		await Promise.resolve();
-
-		expect(
-			document.documentElement.classList.contains(THEME_WIPE_ACTIVE_CLASS),
-		).toBe(false);
-	});
-
-	it('keeps the wipe-active class through overlapping transitions', async () => {
-		let resolveA: () => void = (): void => {};
-		let resolveB: () => void = (): void => {};
-		let callIndex = 0;
-		installStartViewTransition((cb) => {
-			cb();
-			callIndex += 1;
-			if (callIndex === 1) {
-				return {
-					ready: Promise.resolve(),
-					finished: new Promise<void>((resolve) => {
-						resolveA = resolve;
-					}),
-				};
-			}
-			return {
-				ready: Promise.resolve(),
-				finished: new Promise<void>((resolve) => {
-					resolveB = resolve;
-				}),
-			};
-		});
-
-		runThemeTransition(() => undefined);
-		runThemeTransition(() => undefined);
-
-		expect(
-			document.documentElement.classList.contains(THEME_WIPE_ACTIVE_CLASS),
-		).toBe(true);
-
-		// First transition finishes — class must stay because B is still in flight.
-		resolveA();
-		await Promise.resolve();
-		await Promise.resolve();
-		expect(
-			document.documentElement.classList.contains(THEME_WIPE_ACTIVE_CLASS),
-		).toBe(true);
-
-		resolveB();
-		await Promise.resolve();
-		await Promise.resolve();
-		expect(
-			document.documentElement.classList.contains(THEME_WIPE_ACTIVE_CLASS),
-		).toBe(false);
-	});
-
-	it('falls back to applyChange and releases the class when startViewTransition throws before its callback runs', () => {
-		installStartViewTransition(() => {
-			throw new Error('boom');
-		});
-		const applyChange = jest.fn();
-		runThemeTransition(applyChange);
-		expect(applyChange).toHaveBeenCalledTimes(1);
-		expect(
-			document.documentElement.classList.contains(THEME_WIPE_ACTIVE_CLASS),
-		).toBe(false);
-	});
-
-	it('does not double-invoke applyChange when startViewTransition throws after its callback runs', () => {
-		installStartViewTransition((cb) => {
-			cb();
-			throw new Error('post-cb');
-		});
-		const applyChange = jest.fn();
-		runThemeTransition(applyChange);
-		expect(applyChange).toHaveBeenCalledTimes(1);
-		expect(
-			document.documentElement.classList.contains(THEME_WIPE_ACTIVE_CLASS),
-		).toBe(false);
-	});
-});

frontend/src/utils/themeTransition.ts

@@ -1,115 +0,0 @@
-import { flushSync } from 'react-dom';
-
-const WIPE_DURATION_MS = 400;
-const WIPE_EASING = 'ease-out';
-
-// Toggled on <html> for the duration of the wipe so the CSS overrides
-// (animation: none on ::view-transition-{old,new}(root)) don't leak into
-// any future, unrelated view transitions in the app.
-export const THEME_WIPE_ACTIVE_CLASS = 'theme-wipe-active';
-
-type ViewTransition = {
-	ready: Promise<void>;
-	finished: Promise<void>;
-};
-type DocumentWithVT = Document & {
-	startViewTransition?: (callback: () => void) => ViewTransition;
-};
-
-// Rapid theme switches cancel the in-flight transition and immediately start a
-// new one; if we removed the class on the first transition's settled promise,
-// we'd strip the CSS override mid-way through the next wipe and the user
-// would briefly see the UA crossfade. Refcount so the class only comes off
-// once every transition we started has settled.
-let wipeActiveRefCount = 0;
-const acquireWipeClass = (root: HTMLElement): void => {
-	wipeActiveRefCount += 1;
-	root.classList.add(THEME_WIPE_ACTIVE_CLASS);
-};
-const releaseWipeClass = (root: HTMLElement): void => {
-	wipeActiveRefCount = Math.max(0, wipeActiveRefCount - 1);
-	if (wipeActiveRefCount === 0) {
-		root.classList.remove(THEME_WIPE_ACTIVE_CLASS);
-	}
-};
-
-// Identity of the transition we most recently started. Used to skip the
-// .animate() call on a stale transition whose .ready resolved after a newer
-// transition has already taken over the ::view-transition-new pseudo-element.
-let currentTransition: ViewTransition | null = null;
-
-export function canAnimateThemeTransition(): boolean {
-	const doc = document as DocumentWithVT;
-	if (typeof doc.startViewTransition !== 'function') {
-		return false;
-	}
-	return !window.matchMedia('(prefers-reduced-motion: reduce)').matches;
-}
-
-// Runs `applyChange` inside a View Transition and wipes the new theme in from
-// left to right via a polygon clip-path on ::view-transition-new(root).
-// Callers should gate on canAnimateThemeTransition() first; this is a safe
-// no-animation fallback otherwise.
-export function runThemeTransition(applyChange: () => void): void {
-	const doc = document as DocumentWithVT;
-	if (!doc.startViewTransition) {
-		applyChange();
-		return;
-	}
-
-	const root = document.documentElement;
-	acquireWipeClass(root);
-
-	// Some Chromium versions throw if startViewTransition is called while
-	// another transition is in setup. Track whether the callback ran so we
-	// don't double-apply if the throw happens mid-callback.
-	let applied = false;
-	let transition: ViewTransition;
-	try {
-		transition = doc.startViewTransition(() => {
-			applied = true;
-			flushSync(applyChange);
-		});
-	} catch {
-		releaseWipeClass(root);
-		if (!applied) {
-			applyChange();
-		}
-		return;
-	}
-
-	currentTransition = transition;
-
-	const from = 'polygon(0 0, 0 0, 0 100%, 0 100%)';
-	const to = 'polygon(0 0, 100% 0, 100% 100%, 0 100%)';
-
-	transition.ready
-		.then(() => {
-			// If a newer transition has superseded this one between
-			// startViewTransition() and `ready` resolving, the browser has
-			// already cancelled our pseudo-element. Calling .animate() on it now
-			// would race with the newer transition's own animation.
-			if (currentTransition !== transition) {
-				return;
-			}
-			root.animate(
-				{ clipPath: [from, to] },
-				{
-					duration: WIPE_DURATION_MS,
-					easing: WIPE_EASING,
-					pseudoElement: '::view-transition-new(root)',
-				},
-			);
-		})
-		.catch(() => {
-			// Transition cancelled — applyChange has already run.
-		});
-
-	const cleanup = (): void => {
-		if (currentTransition === transition) {
-			currentTransition = null;
-		}
-		releaseWipeClass(root);
-	};
-	transition.finished.then(cleanup).catch(cleanup);
-}

pkg/apiserver/signozapiserver/tracedetail.go

@@ -48,5 +48,23 @@ func (provider *provider) addTraceDetailRoutes(router *mux.Router) error {
 		return err
 	}
 
+	if err := router.Handle("/api/v3/traces/{traceID}/flamegraph", handler.New(
+		provider.authzMiddleware.ViewAccess(provider.traceDetailHandler.GetFlamegraph),
+		handler.OpenAPIDef{
+			ID:                  "GetFlamegraph",
+			Tags:                []string{"tracedetail"},
+			Summary:             "Get flamegraph view for a trace",
+			Description:         "Returns the flamegraph view of spans for a given trace ID.",
+			Request:             new(spantypes.PostableFlamegraph),
+			RequestContentType:  "application/json",
+			Response:            new(spantypes.GettableFlamegraphTrace),
+			ResponseContentType: "application/json",
+			SuccessStatusCode:   http.StatusOK,
+			ErrorStatusCodes:    []int{http.StatusBadRequest, http.StatusNotFound},
+			SecuritySchemes:     newSecuritySchemes(types.RoleViewer),
+		},
+	)).Methods(http.MethodPost).GetError(); err != nil {
+		return err
+	}
 	return nil
 }

pkg/meterreporter/config.go

@@ -1,7 +1,6 @@
 package meterreporter
 
 import (
-	"math/rand/v2"
 	"time"
 
 	"github.com/SigNoz/signoz/pkg/errors"
@@ -16,21 +15,12 @@ type Config struct {
 
 	// Backfill enables sealed-day catch-up from the license creation day.
 	Backfill bool `mapstructure:"backfill"`
-
-	// Jitter is the randomness applied to both the first collect after
-	// Start() and to every subsequent cycle. The first fire happens at a
-	// random time in [0, Jitter); each subsequent cycle takes
-	// Interval - random(0, Jitter). Negative (the default) means "derive
-	// from Interval" via ResolvedJitter, so the value scales with whatever
-	// Interval the user picks.
-	Jitter time.Duration `mapstructure:"jitter"`
 }
 
 func newConfig() factory.Config {
 	return Config{
 		Interval: 6 * time.Hour,
 		Backfill: true,
-		Jitter:   -1, // Negative sentinel. Resolved at use time unless explicitly set.
 	}
 }
 
@@ -39,27 +29,9 @@ func NewConfigFactory() factory.ConfigFactory {
 }
 
 func (c Config) Validate() error {
-	if c.Interval < 10*time.Minute || c.Interval > 24*time.Hour {
-		return errors.New(errors.TypeInvalidInput, ErrCodeInvalidInput, "meterreporter::interval must be between 10m and 24h")
-	}
-
-	if c.Jitter >= 0 && (c.Jitter < 10*time.Minute || c.Jitter > c.Interval) {
-		return errors.New(errors.TypeInvalidInput, ErrCodeInvalidInput, "meterreporter::jitter must be between 10m and interval")
+	if c.Interval < 5*time.Minute || c.Interval > 24*time.Hour {
+		return errors.New(errors.TypeInvalidInput, ErrCodeInvalidInput, "meterreporter::interval must be between 5m and 24h")
 	}
 
 	return nil
 }
-
-// NewJitter returns a fresh random duration sampled uniformly from
-// [0, jitter), where jitter is the configured Jitter or, if the sentinel
-// default is still in place, min(Interval, 2h).
-func (c Config) NewJitter() time.Duration {
-	defaultJitter := 2 * time.Hour
-
-	cap := c.Jitter
-	if cap < 0 {
-		cap = min(c.Interval, defaultJitter)
-	}
-
-	return time.Duration(rand.Int64N(int64(cap)))
-}

pkg/modules/tracedetail/config.go

@@ -6,7 +6,16 @@ import (
 )
 
 type Config struct {
-	Waterfall WaterfallConfig `mapstructure:"waterfall"`
+	Waterfall  WaterfallConfig  `mapstructure:"waterfall"`
+	Flamegraph FlamegraphConfig `mapstructure:"flamegraph"`
+}
+
+type FlamegraphConfig struct {
+	MaxSelectedLevels            int  `mapstructure:"max_selected_levels"`
+	MaxSpansPerLevel             int  `mapstructure:"max_spans_per_level"`
+	SamplingTopLatencySpansCount int  `mapstructure:"sampling_top_latency_count"`
+	SamplingBucketCount          int  `mapstructure:"sampling_bucket_count"`
+	SelectAllSpansLimit          uint `mapstructure:"select_all_spans_limit"`
 }
 
 type WaterfallConfig struct {
@@ -29,6 +38,13 @@ func newConfig() factory.Config {
 			MaxDepthToAutoExpand:     5,
 			MaxLimitToSelectAllSpans: 10_000,
 		},
+		Flamegraph: FlamegraphConfig{
+			MaxSelectedLevels:            50,
+			MaxSpansPerLevel:             100,
+			SamplingTopLatencySpansCount: 5,
+			SamplingBucketCount:          50,
+			SelectAllSpansLimit:          100_000,
+		},
 	}
 }
 
@@ -45,5 +61,25 @@ func (c Config) Validate() error {
 		return errors.NewInvalidInputf(errors.CodeInvalidInput,
 			"tracedetail.waterfall.max_limit_to_select_all_spans must be positive")
 	}
+	if c.Flamegraph.MaxSelectedLevels <= 0 {
+		return errors.NewInvalidInputf(errors.CodeInvalidInput,
+			"tracedetail.flamegraph.level_limit must be positive, got %d", c.Flamegraph.MaxSelectedLevels)
+	}
+	if c.Flamegraph.MaxSpansPerLevel <= 0 {
+		return errors.NewInvalidInputf(errors.CodeInvalidInput,
+			"tracedetail.flamegraph.spans_per_level must be positive, got %d", c.Flamegraph.MaxSpansPerLevel)
+	}
+	if c.Flamegraph.SamplingTopLatencySpansCount < 0 {
+		return errors.NewInvalidInputf(errors.CodeInvalidInput,
+			"tracedetail.flamegraph.top_latency_count cannot be negative, got %d", c.Flamegraph.SamplingTopLatencySpansCount)
+	}
+	if c.Flamegraph.SamplingBucketCount <= 0 {
+		return errors.NewInvalidInputf(errors.CodeInvalidInput,
+			"tracedetail.flamegraph.bucket_count must be positive, got %d", c.Flamegraph.SamplingBucketCount)
+	}
+	if c.Flamegraph.SelectAllSpansLimit == 0 {
+		return errors.NewInvalidInputf(errors.CodeInvalidInput,
+			"tracedetail.flamegraph.max_limit_to_select_all_spans must be positive")
+	}
 	return nil
 }

pkg/modules/tracedetail/impltracedetail/handler.go

@@ -59,3 +59,19 @@ func (h *handler) GetWaterfallV4(rw http.ResponseWriter, r *http.Request) {
 
 	render.Success(rw, http.StatusOK, result)
 }
+
+func (h *handler) GetFlamegraph(rw http.ResponseWriter, r *http.Request) {
+	req := new(spantypes.PostableFlamegraph)
+	if err := binding.JSON.BindBody(r.Body, req); err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	result, err := h.module.GetFlamegraph(r.Context(), mux.Vars(r)["traceID"], req)
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	render.Success(rw, http.StatusOK, result)
+}

pkg/modules/tracedetail/impltracedetail/module.go

@@ -46,6 +46,33 @@ func (m *module) GetWaterfall(ctx context.Context, traceID string, req *spantype
 	return spantypes.NewGettableWaterfallTrace(waterfallTrace, selectedSpans, uncollapsedSpans, selectedAllSpans, aggregationResults), nil
 }
 
+// GetWaterfallV4 is the OOM-safe V4 waterfall.
+// For large traces (NumSpans > effectiveLimit) it uses a two-step fetch:
+// minimal fields for all spans to build the tree, then full fields for the
+// visible window only. Aggregations are not returned.
+func (m *module) GetWaterfallV4(ctx context.Context, traceID string, selectedSpanID string, uncollapsedSpans []string, selectAllLimit uint) (*spantypes.GettableWaterfallTrace, error) {
+	summary, err := m.store.GetTraceSummary(ctx, traceID)
+	if err != nil {
+		return nil, err
+	}
+	effectiveLimit := min(selectAllLimit, m.config.Waterfall.MaxLimitToSelectAllSpans)
+	if summary.NumSpans > uint64(effectiveLimit) {
+		return m.getWindowedWaterfall(ctx, traceID, selectedSpanID, uncollapsedSpans, summary.Start, summary.End)
+	}
+	return m.getFullWaterfall(ctx, traceID, summary)
+}
+
+func (m *module) GetFlamegraph(ctx context.Context, traceID string, req *spantypes.PostableFlamegraph) (*spantypes.GettableFlamegraphTrace, error) {
+	summary, err := m.store.GetTraceSummary(ctx, traceID)
+	if err != nil {
+		return nil, err
+	}
+	if summary.NumSpans <= uint64(m.config.Flamegraph.SelectAllSpansLimit) {
+		return m.getFullFlamegraph(ctx, traceID, summary)
+	}
+	return m.getWindowedFlamegraph(ctx, traceID, req.SelectedSpanID, summary)
+}
+
 // getTraceData fetches all spans for a trace and builds the WaterfallTrace.
 func (m *module) getTraceData(ctx context.Context, traceID string) (*spantypes.WaterfallTrace, error) {
 	summary, err := m.store.GetTraceSummary(ctx, traceID)
@@ -69,22 +96,6 @@ func (m *module) getTraceData(ctx context.Context, traceID string) (*spantypes.W
 	return spantypes.NewWaterfallTraceFromSpans(nodes), nil
 }
 
-// GetWaterfallV4 is the OOM-safe V4 waterfall.
-// For large traces (NumSpans > effectiveLimit) it uses a two-step fetch:
-// minimal fields for all spans to build the tree, then full fields for the
-// visible window only. Aggregations are not returned.
-func (m *module) GetWaterfallV4(ctx context.Context, traceID string, selectedSpanID string, uncollapsedSpans []string, selectAllLimit uint) (*spantypes.GettableWaterfallTrace, error) {
-	summary, err := m.store.GetTraceSummary(ctx, traceID)
-	if err != nil {
-		return nil, err
-	}
-	effectiveLimit := min(selectAllLimit, m.config.Waterfall.MaxLimitToSelectAllSpans)
-	if summary.NumSpans > uint64(effectiveLimit) {
-		return m.getWindowedWaterfall(ctx, traceID, selectedSpanID, uncollapsedSpans, summary.Start, summary.End)
-	}
-	return m.getFullWaterfall(ctx, traceID, summary)
-}
-
 func (m *module) getFullWaterfall(ctx context.Context, traceID string, summary *spantypes.TraceSummary) (*spantypes.GettableWaterfallTrace, error) {
 	spanItems, err := m.store.GetTraceSpans(ctx, traceID, summary)
 	if err != nil {
@@ -145,3 +156,50 @@ func (m *module) getWindowedWaterfall(ctx context.Context, traceID, selectedSpan
 		waterfallTrace, selectedSpans, uncollapsedSpans, false, nil,
 	), nil
 }
+
+func (m *module) getFullFlamegraph(ctx context.Context, traceID string, summary *spantypes.TraceSummary) (*spantypes.GettableFlamegraphTrace, error) {
+	fullSpans, err := m.store.GetTraceSpans(ctx, traceID, summary)
+	if err != nil {
+		return nil, err
+	}
+	if len(fullSpans) == 0 {
+		return nil, spantypes.ErrTraceNotFound
+	}
+	flamegraphTrace := spantypes.NewFlamegraphTraceFromStorable(fullSpans)
+	return spantypes.NewGettableFlamegraphTrace(
+		flamegraphTrace.GetAllLevels(),
+		summary.Start.UnixMilli(), summary.End.UnixMilli(), false,
+	), nil
+}
+
+// getWindowedFlamegraph returns a window of a max levels and max sampled spans per level around the selected span.
+func (m *module) getWindowedFlamegraph(ctx context.Context, traceID, selectedSpanID string, summary *spantypes.TraceSummary) (*spantypes.GettableFlamegraphTrace, error) {
+	minimalSpans, err := m.store.GetMinimalSpans(ctx, traceID, summary.Start, summary.End)
+	if err != nil {
+		return nil, err
+	}
+	if len(minimalSpans) == 0 {
+		return nil, spantypes.ErrTraceNotFound
+	}
+
+	flamegraphTrace := spantypes.NewFlamegraphTraceFromMinimal(minimalSpans)
+	minimalSpans = nil //nolint:ineffassign // release backing array before further db calls
+
+	cfg := m.config.Flamegraph
+	selectedSpans := flamegraphTrace.GetSelectedLevels(selectedSpanID,
+		cfg.MaxSelectedLevels, cfg.MaxSpansPerLevel, cfg.SamplingTopLatencySpansCount, cfg.SamplingBucketCount)
+	if len(selectedSpans) == 0 {
+		return nil, spantypes.ErrTraceNotFound
+	}
+
+	fullSpans, err := m.store.GetTraceSpansByIDs(ctx, traceID, summary.Start, summary.End,
+		spantypes.FlamegraphWindowSpanIDs(selectedSpans))
+	if err != nil {
+		return nil, err
+	}
+
+	return spantypes.NewGettableFlamegraphTrace(
+		flamegraphTrace.EnrichSelectedSpans(selectedSpans, fullSpans),
+		summary.Start.UnixMilli(), summary.End.UnixMilli(), true,
+	), nil
+}

pkg/modules/tracedetail/tracedetail.go

@@ -11,10 +11,12 @@ import (
 type Handler interface {
 	GetWaterfall(http.ResponseWriter, *http.Request)
 	GetWaterfallV4(http.ResponseWriter, *http.Request)
+	GetFlamegraph(http.ResponseWriter, *http.Request)
 }
 
 // Module defines the business logic for trace detail operations.
 type Module interface {
 	GetWaterfall(ctx context.Context, traceID string, req *spantypes.PostableWaterfall) (*spantypes.GettableWaterfallTrace, error)
 	GetWaterfallV4(ctx context.Context, traceID string, selectedSpanID string, uncollapsedSpans []string, selectAllLimit uint) (*spantypes.GettableWaterfallTrace, error)
+	GetFlamegraph(ctx context.Context, traceID string, req *spantypes.PostableFlamegraph) (*spantypes.GettableFlamegraphTrace, error)
 }

pkg/signoz/provider.go

@@ -208,7 +208,6 @@ func NewSQLMigrationProviderFactories(
 		sqlmigration.NewMigrateCloudIntegrationDashboardsFactory(sqlstore),
 		sqlmigration.NewAddScopeToPlannedMaintenanceFactory(sqlstore, sqlschema),
 		sqlmigration.NewMigrateInstalledIntegrationDashboardsFactory(sqlstore),
-		sqlmigration.NewAddDashboardNameFactory(sqlstore, sqlschema),
 	)
 }
 

pkg/sqlmigration/089_add_dashboard_name.go

@@ -1,85 +0,0 @@
-package sqlmigration
-
-import (
-	"context"
-
-	"github.com/SigNoz/signoz/pkg/factory"
-	"github.com/SigNoz/signoz/pkg/sqlschema"
-	"github.com/SigNoz/signoz/pkg/sqlstore"
-	"github.com/uptrace/bun"
-	"github.com/uptrace/bun/migrate"
-)
-
-type addDashboardName struct {
-	sqlstore  sqlstore.SQLStore
-	sqlschema sqlschema.SQLSchema
-}
-
-func NewAddDashboardNameFactory(sqlstore sqlstore.SQLStore, sqlschema sqlschema.SQLSchema) factory.ProviderFactory[SQLMigration, Config] {
-	return factory.NewProviderFactory(
-		factory.MustNewName("add_dashboard_name"),
-		func(ctx context.Context, ps factory.ProviderSettings, c Config) (SQLMigration, error) {
-			return &addDashboardName{sqlstore: sqlstore, sqlschema: sqlschema}, nil
-		},
-	)
-}
-
-func (migration *addDashboardName) Register(migrations *migrate.Migrations) error {
-	return migrations.Register(migration.Up, migration.Down)
-}
-
-func (migration *addDashboardName) Up(ctx context.Context, db *bun.DB) error {
-	// dashboard is referenced by public_dashboard and integration_dashboard;
-	// FK enforcement must be off for the SQLite recreate-table fallback.
-	if err := migration.sqlschema.ToggleFKEnforcement(ctx, db, false); err != nil {
-		return err
-	}
-
-	tx, err := db.BeginTx(ctx, nil)
-	if err != nil {
-		return err
-	}
-	defer func() {
-		_ = tx.Rollback()
-	}()
-
-	table, uniqueConstraints, err := migration.sqlschema.GetTable(ctx, sqlschema.TableName("dashboard"))
-	if err != nil {
-		return err
-	}
-
-	nameColumn := &sqlschema.Column{
-		Name:     sqlschema.ColumnName("name"),
-		DataType: sqlschema.DataTypeText,
-		Nullable: false,
-	}
-
-	// Only v2 dashboards populate this column. Existing v1 rows are left with
-	// the zero value (empty string) so v1 create/update paths can keep
-	// inserting without a name.
-	//
-	// TODO: once v1 dashboards are migrated to v2 and every row has a real
-	// name, a follow-up migration should add a unique index on
-	// (org_id, name) to enforce per-org name uniqueness.
-	sqls := migration.sqlschema.Operator().AddColumn(table, uniqueConstraints, nameColumn, nil)
-
-	for _, sql := range sqls {
-		if _, err := tx.ExecContext(ctx, string(sql)); err != nil {
-			return err
-		}
-	}
-
-	if err := tx.Commit(); err != nil {
-		return err
-	}
-
-	if err := migration.sqlschema.ToggleFKEnforcement(ctx, db, true); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (migration *addDashboardName) Down(context.Context, *bun.DB) error {
-	return nil
-}

pkg/types/dashboardtypes/dashboard.go

@@ -33,7 +33,6 @@ type StorableDashboard struct {
 	Locked bool                  `bun:"locked,notnull,default:false"`
 	OrgID  valuer.UUID           `bun:"org_id,notnull"`
 	Source Source                `bun:"source,type:text,notnull"`
-	Name   string                `bun:"name,type:text,notnull"`
 }
 
 type Dashboard struct {

pkg/types/spantypes/flamegraph_span.go

@@ -0,0 +1,81 @@
+package spantypes
+
+import (
+	"maps"
+
+	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
+)
+
+type FlamegraphSpan struct {
+	SpanID       string            `json:"spanId"`
+	ParentSpanID string            `json:"parentSpanId"`
+	Timestamp    uint64            `json:"timestamp"`
+	DurationNano uint64            `json:"durationNano"`
+	HasError     bool              `json:"hasError"`
+	ServiceName  string            `json:"serviceName"`
+	Name         string            `json:"name"`
+	Level        int64             `json:"level"`
+	Events       []Event           `json:"event"`
+	Attributes   map[string]any    `json:"attributes,omitempty"`
+	Resource     map[string]string `json:"resource,omitempty"`
+	Children     []*FlamegraphSpan `json:"-"` // internal tree use only
+}
+
+// FlamegraphLevel groups span IDs at a single level within the selected window.
+type FlamegraphLevel struct {
+	Level   int64
+	SpanIDs []string
+}
+
+type PostableFlamegraph struct {
+	SelectedSpanID string                             `json:"selectedSpanId"`
+	SelectFields   []telemetrytypes.TelemetryFieldKey `json:"selectFields,omitempty"`
+}
+
+// GettableFlamegraphTrace is the response for the v3 flamegraph API.
+type GettableFlamegraphTrace struct {
+	Spans                [][]*FlamegraphSpan `json:"spans"`
+	StartTimestampMillis int64               `json:"startTimestampMillis"`
+	EndTimestampMillis   int64               `json:"endTimestampMillis"`
+	HasMore              bool                `json:"hasMore"`
+}
+
+func NewGettableFlamegraphTrace(spans [][]*FlamegraphSpan, startMs, endMs int64, hasMore bool) *GettableFlamegraphTrace {
+	return &GettableFlamegraphTrace{
+		Spans:                spans,
+		StartTimestampMillis: startMs,
+		EndTimestampMillis:   endMs,
+		HasMore:              hasMore,
+	}
+}
+
+func NewFlamegraphSpanFromStorable(s *StorableSpan, level int64) *FlamegraphSpan {
+	resources := make(map[string]string, len(s.ResourcesString))
+	maps.Copy(resources, s.ResourcesString)
+	return &FlamegraphSpan{
+		SpanID:       s.SpanID,
+		ParentSpanID: s.ParentSpanID,
+		Timestamp:    uint64(s.StartTime.UnixNano()),
+		DurationNano: s.DurationNano,
+		HasError:     s.HasError,
+		ServiceName:  s.ServiceName,
+		Name:         s.Name,
+		Level:        level,
+		Events:       s.UnmarshalledEvents(),
+		Attributes:   s.Attributes(),
+		Resource:     resources,
+	}
+}
+
+// FlamegraphWindowSpanIDs collects all span IDs from a level window into a flat slice.
+func FlamegraphWindowSpanIDs(window []FlamegraphLevel) []string {
+	total := 0
+	for _, lvl := range window {
+		total += len(lvl.SpanIDs)
+	}
+	ids := make([]string, 0, total)
+	for _, lvl := range window {
+		ids = append(ids, lvl.SpanIDs...)
+	}
+	return ids
+}

pkg/types/spantypes/flamegraph_trace.go

@@ -0,0 +1,276 @@
+package spantypes
+
+import (
+	"sort"
+)
+
+// FlamegraphTrace holds the level wise tree built from minimal spans.
+type FlamegraphTrace struct {
+	roots     []*FlamegraphSpan
+	nodeByID  map[string]*FlamegraphSpan
+	startTime uint64
+	endTime   uint64
+}
+
+func NewFlamegraphTraceFromMinimal(spans []MinimalSpan) *FlamegraphTrace {
+	t := &FlamegraphTrace{
+		nodeByID: make(map[string]*FlamegraphSpan, len(spans)),
+	}
+	for i := range spans {
+		node := spans[i].ToFlamegraphSpan()
+		t.updateTimeRange(node.Timestamp, node.DurationNano)
+		t.nodeByID[node.SpanID] = node
+	}
+	t.buildSpanTree()
+	return t
+}
+
+func NewFlamegraphTraceFromStorable(spans []StorableSpan) *FlamegraphTrace {
+	t := &FlamegraphTrace{
+		nodeByID: make(map[string]*FlamegraphSpan, len(spans)),
+	}
+	for i := range spans {
+		node := NewFlamegraphSpanFromStorable(&spans[i], 0) // level is set later by BFS
+		t.updateTimeRange(node.Timestamp, node.DurationNano)
+		t.nodeByID[node.SpanID] = node
+	}
+	t.buildSpanTree()
+	return t
+}
+
+func (t *FlamegraphTrace) GetAllLevels() [][]*FlamegraphSpan {
+	allLevels := t.buildAllLevels()
+	for _, node := range t.nodeByID {
+		node.Children = nil // children not required after building tree
+	}
+	return allLevels
+}
+
+// GetSelectedLevels returns the level window for selectedSpanID with sampling applied to
+// dense levels. It always applies windowing — callers should only invoke this when the
+// trace is known to exceed the select-all limit.
+// Children are cleared after traversal so the tree can be GC'd.
+func (t *FlamegraphTrace) GetSelectedLevels(
+	selectedSpanID string,
+	levelLimit, spansPerLevel, topLatencyCount, bucketCount int,
+) []FlamegraphLevel {
+	allLevels := t.buildAllLevels()
+	for _, node := range t.nodeByID {
+		node.Children = nil
+	}
+
+	selectedIndex := 0
+	if selectedSpanID != "" {
+	outer:
+		for i, lvl := range allLevels {
+			for _, span := range lvl {
+				if span.SpanID == selectedSpanID {
+					selectedIndex = i
+					break outer
+				}
+			}
+		}
+	}
+
+	lowerLimit := selectedIndex - int(float64(levelLimit)*0.4)
+	upperLimit := selectedIndex + int(float64(levelLimit)*0.6)
+
+	if lowerLimit < 0 {
+		upperLimit -= lowerLimit
+		lowerLimit = 0
+	}
+	if upperLimit > len(allLevels) {
+		lowerLimit -= upperLimit - len(allLevels)
+		upperLimit = len(allLevels)
+	}
+	if lowerLimit < 0 {
+		lowerLimit = 0
+	}
+
+	result := make([]FlamegraphLevel, 0, upperLimit-lowerLimit)
+	for i := lowerLimit; i < upperLimit; i++ {
+		lvl := allLevels[i]
+		if len(lvl) == 0 {
+			continue
+		}
+		var sampled []*FlamegraphSpan
+		if len(lvl) > spansPerLevel {
+			sampled = sampleFlamegraphLevel(lvl, selectedSpanID, i == selectedIndex,
+				t.startTime, t.endTime, topLatencyCount, bucketCount)
+		} else {
+			sampled = lvl
+		}
+		if len(sampled) == 0 {
+			continue
+		}
+		spanIDs := make([]string, len(sampled))
+		for j, s := range sampled {
+			spanIDs[j] = s.SpanID
+		}
+		result = append(result, FlamegraphLevel{
+			Level:   sampled[0].Level,
+			SpanIDs: spanIDs,
+		})
+	}
+
+	return result
+}
+
+func (t *FlamegraphTrace) EnrichSelectedSpans(selectedSpans []FlamegraphLevel, fullSpans []StorableSpan) [][]*FlamegraphSpan {
+	fullByID := make(map[string]*StorableSpan, len(fullSpans))
+	for i := range fullSpans {
+		fullByID[fullSpans[i].SpanID] = &fullSpans[i]
+	}
+
+	result := make([][]*FlamegraphSpan, len(selectedSpans))
+	for i, lvl := range selectedSpans {
+		result[i] = make([]*FlamegraphSpan, 0, len(lvl.SpanIDs))
+		for _, spanID := range lvl.SpanIDs {
+			if full, ok := fullByID[spanID]; ok {
+				result[i] = append(result[i], NewFlamegraphSpanFromStorable(full, lvl.Level))
+			} else if lean, ok := t.nodeByID[spanID]; ok {
+				result[i] = append(result[i], lean)
+			}
+		}
+	}
+	return result
+}
+
+func (t *FlamegraphTrace) updateTimeRange(timestamp, durationNano uint64) {
+	if t.startTime == 0 || timestamp < t.startTime {
+		t.startTime = timestamp
+	}
+	if end := timestamp + durationNano; end > t.endTime {
+		t.endTime = end
+	}
+}
+
+func (t *FlamegraphTrace) buildSpanTree() {
+	for _, node := range t.nodeByID {
+		if node.ParentSpanID != "" {
+			if parent, ok := t.nodeByID[node.ParentSpanID]; ok {
+				parent.Children = append(parent.Children, node)
+			} else {
+				missing := &FlamegraphSpan{
+					SpanID:       node.ParentSpanID,
+					Name:         "Missing Span",
+					Timestamp:    node.Timestamp,
+					DurationNano: node.DurationNano,
+					Children:     []*FlamegraphSpan{node},
+				}
+				t.nodeByID[missing.SpanID] = missing
+				t.roots = append(t.roots, missing)
+			}
+		} else if flamegraphSpanIndex(t.roots, node.SpanID) == -1 {
+			t.roots = append(t.roots, node)
+		}
+	}
+
+	sort.Slice(t.roots, func(i, j int) bool {
+		if t.roots[i].Timestamp == t.roots[j].Timestamp {
+			return t.roots[i].SpanID < t.roots[j].SpanID
+		}
+		return t.roots[i].Timestamp < t.roots[j].Timestamp
+	})
+}
+
+func (t *FlamegraphTrace) buildAllLevels() [][]*FlamegraphSpan {
+	var result [][]*FlamegraphSpan
+
+	type entry struct {
+		node  *FlamegraphSpan
+		depth int64
+	}
+
+	for _, root := range t.roots {
+		levelMap := make(map[int64][]*FlamegraphSpan)
+		maxDepth := int64(-1)
+
+		queue := []entry{{root, 0}}
+		for len(queue) > 0 {
+			curr := queue[0]
+			queue = queue[1:]
+			curr.node.Level = curr.depth
+			levelMap[curr.depth] = append(levelMap[curr.depth], curr.node)
+			if curr.depth > maxDepth {
+				maxDepth = curr.depth
+			}
+			for _, child := range curr.node.Children {
+				queue = append(queue, entry{child, curr.depth + 1})
+			}
+		}
+
+		for depth := int64(0); depth <= maxDepth; depth++ {
+			if spans, ok := levelMap[depth]; ok {
+				result = append(result, spans)
+			}
+		}
+	}
+
+	return result
+}
+
+func sampleFlamegraphLevel(
+	spans []*FlamegraphSpan,
+	selectedSpanID string,
+	isSelectedLevel bool,
+	startTime, endTime uint64,
+	topLatencyCount, bucketCount int,
+) []*FlamegraphSpan {
+	sorted := make([]*FlamegraphSpan, len(spans))
+	copy(sorted, spans)
+	sort.Slice(sorted, func(i, j int) bool {
+		return sorted[i].DurationNano > sorted[j].DurationNano
+	})
+
+	var sampled []*FlamegraphSpan
+
+	topK := min(topLatencyCount, len(sorted))
+	sampled = append(sampled, sorted[:topK]...)
+
+	if isSelectedLevel {
+		for _, span := range sorted {
+			if span.SpanID == selectedSpanID {
+				sampled = append(sampled, span)
+				break
+			}
+		}
+	}
+
+	bucketSize := (endTime - startTime) / uint64(bucketCount)
+	if bucketSize == 0 {
+		bucketSize = 1
+	}
+	buckets := make([][]*FlamegraphSpan, bucketCount)
+	for _, span := range sorted {
+		if span.Timestamp < startTime || span.Timestamp > endTime {
+			continue
+		}
+		idx := int((span.Timestamp - startTime) / bucketSize)
+		if idx < 0 {
+			idx = 0
+		} else if idx >= bucketCount {
+			idx = bucketCount - 1
+		}
+		buckets[idx] = append(buckets[idx], span)
+	}
+	for i := range buckets {
+		if len(buckets[i]) > 2 {
+			buckets[i] = buckets[i][:2]
+		}
+	}
+	for _, bucket := range buckets {
+		sampled = append(sampled, bucket...)
+	}
+
+	return sampled
+}
+
+func flamegraphSpanIndex(spans []*FlamegraphSpan, spanID string) int {
+	for i, s := range spans {
+		if s != nil && s.SpanID == spanID {
+			return i
+		}
+	}
+	return -1
+}

pkg/types/spantypes/waterfall_span.go

@@ -156,6 +156,18 @@ func (item *MinimalSpan) ToWaterfallSpan(traceID string) *WaterfallSpan {
 	}
 }
 
+func (item *MinimalSpan) ToFlamegraphSpan() *FlamegraphSpan {
+	return &FlamegraphSpan{
+		SpanID:       item.SpanID,
+		ParentSpanID: item.ParentSpanID,
+		Timestamp:    uint64(item.StartTime.UnixNano()),
+		DurationNano: item.DurationNano,
+		HasError:     item.HasError,
+		ServiceName:  item.ServiceName,
+		Children:     make([]*FlamegraphSpan, 0),
+	}
+}
+
 // NewMissingWaterfallSpan creates a synthetic placeholder span for a parent that has no recorded data.
 func NewMissingWaterfallSpan(spanID, traceID string, timeUnixNano, durationNano uint64) *WaterfallSpan {
 	return &WaterfallSpan{