resolutionflow/.ai/HANDOFF.md

HANDOFF.md

Last updated: 2026-04-27 21:30 EDT

Active task: Escalation Mode wedge build. See CURRENT_TASK.md for the full status; this file holds the resume point only.

Branch: feat/escalation-metric-endpoint — frontend live-arrival SSE slice + magic-moment handoff-context screen are both shipped on top of the test-stabilized backend. Branch is unpushed.

Status

Previous session shipped the two remaining frontend slices: live-arrival SSE subscription in EscalationQueue.tsx, and the magic-moment HandoffContextScreen for senior pickup.

What landed (commits added to the branch):

• b8627f4 feat(escalations): subscribe EscalationQueue to live SSE arrivals — streamEscalations in aiSessions.ts (fetch-based ReadableStream parser; native EventSource can't send auth headers); HandoffCreatedEvent + EscalationStreamHandlers types; EscalationQueue.tsx rewrite with AbortController-managed subscription, exponential-backoff reconnect (1s → 30s cap, resets on ready), prepend-on-arrival with locked 200ms slide-in, tab-title (N) prefix while document.hidden, prefers-reduced-motion swap, ARIA live region.
• f65b657 docs(ai): handoff state after frontend SSE slice lands.
• 8e9d22e feat(escalations): magic-moment handoff-context screen on pickup — new HandoffContextScreen.tsx (4 sections; renders gracefully when ai_assessment is null per the 5s timeout from 9bdd995; ARIA dialog + focus on primary CTA + Esc dismiss for re-open overlay; prefers-reduced-motion honored). FlowPilotSessionPage.tsx integration: on ?pickup=true, fetch the handoff list first (account-scoped via RLS, no claim required), find the latest unclaimed escalate handoff, render the screen and skip loadSession (senior would 404 pre-claim). "Start here" calls claimHandoff, drops the pickup query, and dismisses — loadSession then fires because senior is now escalated_to_id. Toolbar "Context" button on active sessions re-opens the screen as a dismissible overlay (visible only when senior arrived via the magic-moment flow this session).

Verified:

• tsc -b exit 0 after each commit.
• Backend regression: focused subset still 32 passed in 18.91s with -n auto. No backend changes in this session.
• Live SSE handshake against the running dev stack: 200 + text/event-stream; ready frame on connect; handoff_created frame with full payload arrived after posting a handoff via the API. Wire format matches the parser exactly.
• Live claim flow against the running dev stack: listHandoffs returns the unclaimed handoff for a senior pre-claim; claimHandoff flips session status from escalated → active and sets escalated_to_id; subsequent GET /ai-sessions/{id} succeeds.

Not yet verified (would need a real browser session): the slide-in animation visually plays, tab title actually updates, reduced-motion media-query path renders, AbortController cleanup on unmount, exponential backoff after a real network blip, the magic-moment screen layout/typography looks right, dissolve transition feels right. Wire contract + integration semantics are confirmed; visuals are next.

Smoke-test artifact: a single test handoff (0f6149db… on session 50ea20d4…) was claimed during verification and is now an active session owned by the engineer test user. Harmless; useful as visual demo data.

Resume point

1. Visual QA the two new frontend slices in a real browser. Open /escalations as a senior, escalate from a separate session/tab, watch the slide-in + tab-title flash. Then click Pick Up and walk through the magic-moment screen → Start here → confirm the FlowPilot view loads cleanly. The /qa skill is the right tool.
2. Push the branch and open a draft PR against main. Title: "Escalation Mode wedge". Body: link the design + test-plan artifacts in docs/plans/.
3. Pick up the deferred follow-ups in CURRENT_TASK.md — the highest-leverage one is the suggested-step chips below the chat input (Codex correction, locked in design). The HandoffManager._generate_snapshot expansion to include recent steps/conversation is the next-highest leverage so the magic-moment screen can show the diagnostic timeline pre-claim.
4. Optional v1: owner-facing /analytics/escalations page; Playwright e2e for the GTM Loom demo path.

Useful breadcrumbs

• SSE endpoint: backend/app/api/endpoints/session_handoffs.py — stream_escalations.
• Pub/sub bus: backend/app/core/escalation_bus.py.
• Frontend SSE consumer: frontend/src/api/aiSessions.ts → streamEscalations.
• Live-arrival queue UI: frontend/src/components/flowpilot/EscalationQueue.tsx.
• Magic-moment screen: frontend/src/components/flowpilot/HandoffContextScreen.tsx.
• Pickup integration: frontend/src/pages/FlowPilotSessionPage.tsx — magicState, handleStartHere, openHandoffContextOverlay.
• Notification dispatch: backend/app/services/handoff_manager.py — dispatch_escalation_notifications.
• Metric endpoint: backend/app/api/endpoints/flowpilot_analytics.py.

Watch-outs

• Do not reintroduce client.stream()/ASGITransport tests for infinite SSE responses; test the generator directly.
• The bus is acceptable for v1 pilot scale only because Railway is single-replica. Redis pub/sub is the obvious swap when horizontal scaling appears.
• streamEscalations doesn't drive token refresh on a mid-stream 401 — the Axios interceptor only covers axios calls. Acceptable for v1.
• The handoff snapshot today is sparse (problem_summary, problem_domain, status, step_count, confidence_tier plus optional branch info). The magic-moment screen's "What's been tried" section currently shows engineer notes + step-count affordance, not the actual step timeline. Snapshot expansion is the right fix.
• HandoffResponse.ai_assessment_data.confidence is typed number on the frontend but the backend currently emits 'low' | 'medium' | 'high' strings. The ConfidenceBadge component handles both shapes at runtime; the type definition is stale and should be widened to number | 'low' | 'medium' | 'high'.
• The toolbar "Context" button is hidden on revisited active sessions where the senior didn't arrive via magic-moment this session — known scope cut. Lazy-fetching handoff list on session-load (when status was previously escalated) is the cleanup.