perf: reduce dashboard SSE refresh and render churn#451
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harsh-batheja merged 3 commits intomainfrom Mar 13, 2026
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Batch membership-driven refreshes behind a short cadence and keep low-frequency steady-state refreshes so pause and PR data stay current without hammering /api/sessions during SSE churn. Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Keep unchanged zones and cards cold during same-membership SSE updates by stabilizing dashboard callbacks, caching project groupings, and memoizing the session view tree with a render-cadence regression test. Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
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Abort in-flight refreshes and ignore late completions from disposed effects so old project fetches cannot re-arm timers or reset the new project state. Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
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Summary
/api/sessionsrefresh, while keeping a low-cadence steady-state refresh so global pause and PR enrichment do not go staleAttentionZoneandSessionCard, stabilize dashboard action callbacks, and reuse per-project session groupings so unchanged cards stay cold during same-membership updatesMeasured impact
/api/sessionsrefresh per cadence window (covered byuseSessionEventsregression test)Dashboard.renderCadence.test.tsx)Validation
corepack pnpm --filter @composio/ao-web test -- src/hooks/__tests__/useSessionEvents.test.ts src/components/__tests__/Dashboard.renderCadence.test.tsx src/components/__tests__/Dashboard.globalPause.test.tsx src/components/__tests__/Dashboard.projectOverview.test.tsxcorepack pnpm --filter @composio/ao-web typecheckcorepack pnpm --filter @composio/ao-web buildcorepack pnpm -r typecheckNotes
packages/web/src/lib/services.tsand an existing tracker-linear dependency resolution warning during Next.js compilation, but the build completes successfully