---
session_id: S-2026-0224-1154
timestamp: 2026-02-24T10:54:47Z
predecessor: S-2026-0224-1034
tasks_active: [T-261, T-262, T-263, T-265, T-266, T-267, T-268, T-269]
tasks_touched: [T-265, T-267, T-270, T-269, T-261]
tasks_completed: [T-265, T-267, T-270, T-269]
uncommitted_changes: 29
owner: claude-code
session_narrative: "Completed all remaining Q&A Phase 2 tasks: T-265 saved answers, T-267 user feedback, T-270 healing integration, T-269 reranking. 9/9 Phase 2 build tasks done. Only T-268 (multi-turn) remains as captured. Reranker model not in Ollama registry — infra ready with graceful fallback."
---

# Session Handover: S-2026-0224-1154

## Where We Are

Q&A Phase 2 is essentially complete — all 9 build tasks done (T-262..T-270). 7 have human ACs pending browser verification. T-268 (multi-turn) is the only one still captured/unstarted. The reranker model (T-269) isn't available in the Ollama registry but the infrastructure auto-activates when installed.

## Work in Progress

<!-- horizon: now -->

### T-261: "Q&A Phase 2 — model upgrade, RAG quality, framework integration, saved answers"
- **Status:** started-work (horizon: now)
- **Last action:** All 9 child tasks completed (T-262..T-270). GO decision already recorded.
- **Next step:** Human reviews completed tasks in browser, marks human ACs
- **Blockers:** Owner: human (inception task)
- **Insight:** Full Phase 2 delivered across 2 sessions

### T-262: "Replace LLM with Qwen3-14B + thinking mode toggle"
- **Status:** work-completed (horizon: now, partial-complete: human ACs pending)
- **Last action:** Completed in prior session — Qwen3-14B + should_think() classifier
- **Next step:** Human verifies answer quality in browser
- **Blockers:** None
- **Insight:** ~33 tok/s with think=False

### T-263: "RAG quick wins — prompt, embeddings, chunking"
- **Status:** work-completed (horizon: now, partial-complete: human ACs pending)
- **Last action:** Completed in prior session — nomic-embed-text-v2-moe, chunk overlap, LRU cache
- **Next step:** Human verifies answer quality in browser
- **Blockers:** None
- **Insight:** Cache: 207ms to 0ms on repeated queries

### T-265: "Saved answers — curated Q&A for retrieval flywheel"
- **Status:** work-completed (horizon: now, partial-complete: human ACs pending)
- **Last action:** Built Save Answer button, POST endpoint, .context/qa/ indexing
- **Next step:** Human tests save button in browser
- **Blockers:** None
- **Insight:** Saved answers auto-indexed by BM25 and vector search on rebuild

### T-266: "Streaming UX — marked.js, syntax highlighting, copy buttons"
- **Status:** work-completed (horizon: now, partial-complete: human ACs pending)
- **Last action:** Completed in prior session — marked.js, highlight.js, DOMPurify, copy buttons
- **Next step:** Human verifies rendering in browser
- **Blockers:** None
- **Insight:** All JS libraries served locally for offline capability

### T-267: "User feedback — thumbs up/down on Q&A answers"
- **Status:** work-completed (horizon: now, partial-complete: human ACs pending)
- **Last action:** Built thumbs up/down buttons, SQLite storage, analytics page
- **Next step:** Human tests feedback buttons in browser, checks /search/feedback/analytics
- **Blockers:** None
- **Insight:** SQLite DB in .context/working/ — persistent but not version-controlled

<!-- horizon: next -->

### T-268: "Multi-turn Q&A conversation"
- **Status:** captured (horizon: next)
- **Last action:** Task created — not started
- **Next step:** Plan EventSource-to-fetch migration carefully (one-way door)
- **Blockers:** EventSource to fetch is a one-way door — plan carefully
- **Insight:** Client-side history recommended over server-side sessions

### T-269: "Cross-encoder reranking with Qwen3-Reranker"
- **Status:** work-completed (horizon: next, partial-complete: human AC pending)
- **Last action:** Built reranking infrastructure with Qwen3-Reranker prompt format, graceful fallback
- **Next step:** Install reranker model when available in Ollama registry
- **Blockers:** Model not in Ollama registry (tried 3 names)
- **Insight:** Infrastructure auto-activates via _rerank_available() check

## Inception Phases

**1 inception task(s) pending decision** — run `fw inception status` for details.

## Gaps Register

**2 spec-reality gap(s) being watched** — see `.context/project/gaps.yaml`

- **G-004** [low]: Multi-agent collaboration untested
- **G-011** [low]: PostToolUse hooks are advisory-only — cannot block actions

## Decisions Made This Session

1. **Reranker model: build infra with graceful fallback**
   - Why: Qwen3-Reranker 0.6B not available in Ollama registry (3 names tried)
   - Rejected: Using Qwen3-14B as reranker (too slow), blocking on model availability

## Things Tried That Failed

1. **ollama pull qwen3-reranker:0.6b** — "file does not exist" (not in default registry)
2. **ollama pull dengcao/Qwen3-Reranker-0.6B** — same error (community model not available)
3. **ollama pull sam860/qwen3-reranker:0.6b** — same error
4. **focus.sh used CYAN variable** — not defined in context.sh (only RED/GREEN/YELLOW/BLUE/NC). Fixed: use BLUE instead.

## Open Questions / Blockers

1. 7 tasks have human ACs pending — verify in browser at http://localhost:3000/search
2. T-268 (multi-turn) needs careful planning — EventSource to fetch is one-way
3. Reranker model availability — check Ollama registry periodically

## Gotchas / Warnings for Next Session

- Flask template caching — restart server after template edits
- Ollama model cold start takes ~20s for Qwen3-14B
- Budget gate blocks git push at critical level — push manually if needed
- focus.sh briefing requires Ollama + vector index (non-blocking: fails gracefully)

## Suggested First Action

Verify Q&A Phase 2 in browser — check human ACs on T-262, T-263, T-265, T-266, T-267. Or start T-268 (multi-turn) with careful planning.

## Files Changed This Session

- Created: web/qa_feedback.py, web/templates/feedback_analytics.html
- Modified: web/blueprints/discovery.py, web/templates/search.html, web/search.py, web/embeddings.py, agents/healing/lib/diagnose.sh, agents/context/lib/focus.sh

## Recent Commits

- 33570b4 T-012: Session handover S-2026-0224-1154
- aefe9bb T-269: Cross-encoder reranking infrastructure + fix focus.sh CYAN variable
- dae65ed T-270: Healing agent semantic matching via fw ask + context focus briefing
- 3f276b9 T-267: User feedback — thumbs up/down buttons, SQLite storage, analytics page
- 902f64b T-265: Saved answers — Save button, POST endpoint, qa directory indexing

---

## Handover Quality Feedback (for next session to complete)

- Did this handover help? [ ]
- What was missing?
- What was unnecessary?
