perf(agent-map): avoid fleet flare allocation

src/renderer/src/components/dashboard-popout/AgentMap.tsx

@@ -18,6 +18,7 @@ import {
   type AgentMapHostFilter
 } from './agent-map-filter'
 import { updateAgentMapLayout, type AgentMapLayoutCache } from './agent-map-layout'
+import { selectAgentMapRecentFinishPaneKeys } from './agent-map-node-metadata'
 import './agent-map.css'
 
 type AgentMapProps = {
@@ -120,6 +121,10 @@ export function AgentMap({
     () => updateAgentMapLayout(layoutCacheRef.current, visibleCards, now, visibleWorkspaces),
     [visibleCards, visibleWorkspaces, now]
   )
+  const recentFinishPaneKeys = useMemo(
+    () => selectAgentMapRecentFinishPaneKeys(visibleCards),
+    [visibleCards]
+  )
   useEffect(() => {
     layoutCacheRef.current = layoutResult.cache
   }, [layoutResult.cache])
@@ -173,6 +178,7 @@ export function AgentMap({
           selectedPaneKey={selectedPaneKey}
           allowAggregation
           showOrchestrationLinks={showOrchestrationLinks}
+          recentFinishPaneKeys={recentFinishPaneKeys}
           launchableAgentsByWorktreeId={launchableAgentsByWorktreeId}
           workspaceContextMenusEnabled={workspaceContextMenusEnabled}
           onWorkspaceContextMenuOpenChange={onWorkspaceContextMenuOpenChange}

src/renderer/src/components/dashboard-popout/AgentMapCanvas.tsx

@@ -35,8 +35,6 @@ import { useAgentMapViewportTransition } from './useAgentMapViewportTransition'
 
 const AGENT_FOCUS_DURATION_MS = 240
 
-type Point = { x: number; y: number }
-
 export type AgentMapCanvasHandle = {
   fit: () => void
   focusProject: (project: AgentMapProjectRing) => void
@@ -48,6 +46,7 @@ type AgentMapCanvasProps = {
   selectedPaneKey: string | null
   allowAggregation: boolean
   showOrchestrationLinks: boolean
+  recentFinishPaneKeys: ReadonlySet<string>
   launchableAgentsByWorktreeId?: Record<string, TuiAgent[]>
   workspaceContextMenusEnabled?: boolean
   onWorkspaceContextMenuOpenChange?: (open: boolean) => void
@@ -64,6 +63,7 @@ export const AgentMapCanvas = forwardRef<AgentMapCanvasHandle, AgentMapCanvasPro
       selectedPaneKey,
       allowAggregation,
       showOrchestrationLinks,
+      recentFinishPaneKeys,
       launchableAgentsByWorktreeId,
       workspaceContextMenusEnabled = false,
       onWorkspaceContextMenuOpenChange,
@@ -78,8 +78,8 @@ export const AgentMapCanvas = forwardRef<AgentMapCanvasHandle, AgentMapCanvasPro
     const nodeRefs = useRef(new Map<string, SVGGElement>())
     const dragRef = useRef<{
       pointerId: number
-      point: Point
-      center: Point
+      point: AgentMapViewport['center']
+      center: AgentMapViewport['center']
       worldPerPixelX: number
       worldPerPixelY: number
     } | null>(null)
@@ -387,6 +387,7 @@ export const AgentMapCanvas = forwardRef<AgentMapCanvasHandle, AgentMapCanvasPro
               selectedPaneKey={selectedPaneKey}
               allowAggregation={allowAggregation}
               showOrchestrationLinks={showOrchestrationLinks}
+              recentFinishPaneKeys={recentFinishPaneKeys}
               launchableAgentsByWorktreeId={launchableAgentsByWorktreeId}
               nodeRefs={nodeRefs}
               onSelectAgent={onSelectAgent}

src/renderer/src/components/dashboard-popout/AgentMapProjectLabel.test.tsx

@@ -44,6 +44,7 @@ describe('AgentMapScene project labels', () => {
           selectedPaneKey={null}
           allowAggregation
           showOrchestrationLinks
+          recentFinishPaneKeys={new Set()}
           nodeRefs={{ current: new Map() }}
           onSelectAgent={vi.fn()}
           onAgentKeyDown={vi.fn()}

src/renderer/src/components/dashboard-popout/AgentMapScene.tsx

@@ -11,7 +11,6 @@ import type {
   AgentMapWorktreeRing
 } from './agent-map-layout'
 import { AGENT_MAP_LINEAGE_RELATION, shouldAggregateAgentMapWorktree } from './agent-map-layout'
-import { selectAgentMapRecentFinishPaneKeys } from './agent-map-node-metadata'
 import { selectVisibleAgentMapLabels } from './agent-map-label-declutter'
 import { agentMapDirectLineageChevronPath } from './agent-map-lineage-chevron-path'
 import { AgentMapWorktreeLabel } from './AgentMapWorktreeLabel'
@@ -29,6 +28,7 @@ type AgentMapSceneProps = {
   selectedPaneKey: string | null
   allowAggregation: boolean
   showOrchestrationLinks: boolean
+  recentFinishPaneKeys: ReadonlySet<string>
   launchableAgentsByWorktreeId?: Record<string, TuiAgent[]>
   nodeRefs: MutableRefObject<Map<string, SVGGElement>>
   onSelectAgent: (card: DashboardCard) => void
@@ -72,6 +72,7 @@ export const AgentMapScene = memo(function AgentMapScene({
   selectedPaneKey,
   allowAggregation,
   showOrchestrationLinks,
+  recentFinishPaneKeys,
   launchableAgentsByWorktreeId,
   nodeRefs,
   onSelectAgent,
@@ -125,15 +126,6 @@ export const AgentMapScene = memo(function AgentMapScene({
     }
     return agents
   }, [allowAggregation, layout, selectedPaneKey, zoom])
-  const recentFinishPaneKeys = useMemo(
-    () =>
-      selectAgentMapRecentFinishPaneKeys(
-        layout.projects.flatMap((project) =>
-          project.worktrees.flatMap((worktree) => worktree.agents.map((agent) => agent.card))
-        )
-      ),
-    [layout]
-  )
   return (
     <>
       {layout.projects.map((project) => {

src/renderer/src/components/dashboard-popout/agent-map-glow.performance.test.ts

@@ -70,4 +70,12 @@ describe('Agent Map glow performance boundary', () => {
     expect(windowMs).toBeGreaterThan(0)
     expect(cssMs).toBe(windowMs)
   })
+
+  it('selects capped flares before rendering instead of flattening the scene', () => {
+    const map = source('AgentMap.tsx')
+    const scene = source('AgentMapScene.tsx')
+
+    expect(map).toMatch(/selectAgentMapRecentFinishPaneKeys\(visibleCards\)/)
+    expect(scene).not.toContain('selectAgentMapRecentFinishPaneKeys')
+  })
 })