---
session_id: S-2026-0224-0941
timestamp: 2026-02-24T08:41:38Z
predecessor: S-2026-0223-2233
tasks_active: [T-261, T-262, T-263, T-264, T-265, T-266, T-267, T-268, T-269, T-270]
tasks_touched: [T-270, T-268, T-269, T-266, T-261, T-265, T-262, T-263, T-267, T-264, T-257, T-258, T-253, T-255, T-256, T-048, T-260, T-254, T-245, T-259]
tasks_completed: []
uncommitted_changes: 64
owner: claude-code
session_narrative: "Fixed LATEST.md handover sync bug (T-260), then ran Q&A Phase 2 inception (T-261) with 5 parallel research agents. Created 9 build tasks (T-262..T-270) from research findings. Awaiting human GO decision on T-261."
---

# Session Handover: S-2026-0224-0941

## Where We Are

Q&A Phase 1 (T-254..T-259) is fully shipped. This session fixed a handover sync bug (T-260: LATEST.md now a symlink) and completed Q&A Phase 2 research (T-261). Five parallel research agents investigated model selection, RAG quality, thinking models, framework integration, and UX improvements. 6 research reports saved, 5 key decisions recorded, 9 build tasks created. Awaiting human GO decision on T-261 inception before building begins.

## 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:** Research complete — 5 agents, 6 reports in docs/reports/T-261-*. 9 build tasks created. 5 decisions recorded in task file.
- **Next step:** Human GO decision: `fw inception decide T-261 go --rationale "..."`
- **Blockers:** Awaiting human approval (owner: human)
- **Insight:** Qwen3-14B is the consensus #1 pick across all model research — toggleable thinking mode is the differentiator

### T-262: "Replace LLM with Qwen3-14B + thinking mode toggle"
- **Status:** captured (horizon: now)
- **Last action:** Task created with rich description referencing RQ-1, RQ-3
- **Next step:** `ollama pull qwen3:14b` on host, then start work
- **Blockers:** Needs model downloaded first (~9GB download)
- **Insight:** Current IQ2_M 32B is worst of both worlds — 14B@Q4 is faster AND better quality

### T-263: "RAG quick wins — prompt, embeddings, chunking"
- **Status:** captured (horizon: now)
- **Last action:** Task created referencing RQ-2 §1-§6
- **Next step:** Start with system prompt improvement (15min, highest impact:effort)
- **Blockers:** None
- **Insight:** Embedding model (MiniLM, 2022) is the weakest link — upgrade to nomic-embed-text gives 10-15% retrieval boost

### T-264: "fw ask CLI — synchronous RAG+LLM wrapper"
- **Status:** captured (horizon: now)
- **Last action:** Task created referencing RQ-4 §1, §Architectural Notes
- **Next step:** Create lib/ask-api.py + lib/ask.sh + fw route
- **Blockers:** None (Watchtower must be running for embeddings DB)
- **Insight:** Keystone — all 8 downstream framework integrations depend on this

### T-265: "Saved answers — curated Q&A for retrieval flywheel"
- **Status:** captured (horizon: now)
- **Last action:** Task created from conversation Q3 discussion
- **Next step:** Add Save button, POST endpoint, .context/qa/ directory
- **Blockers:** None
- **Insight:** Flywheel effect — saved answers become first-class retrieval sources

### T-266: "Streaming UX — marked.js, syntax highlighting, copy buttons"
- **Status:** captured (horizon: now)
- **Last action:** Task created referencing RQ-5 §4 (full code sketches)
- **Next step:** Download marked.js + highlight.js + DOMPurify to web/static/
- **Blockers:** None
- **Insight:** Debounce rendering to ~100ms to prevent flicker during fast token streaming

### T-267: "User feedback — thumbs up/down on Q&A answers"
- **Status:** captured (horizon: now)
- **Last action:** Task created referencing RQ-5 §3 (full schema/endpoints)
- **Next step:** Create web/qa_feedback.py + endpoints + UI buttons
- **Blockers:** None
- **Insight:** Keep buttons subtle and optional to avoid adoption friction

<!-- horizon: next -->

### T-268: "Multi-turn Q&A conversation"
- **Status:** captured (horizon: next)
- **Last action:** Task created referencing RQ-5 §1
- **Next step:** Wait for T-262/T-263 (model + RAG improvements first)
- **Blockers:** EventSource→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:** captured (horizon: next)
- **Last action:** Task created referencing RQ-2 §1.1
- **Next step:** Wait for T-263 (embedding upgrade first)
- **Blockers:** Needs `ollama pull qwen3-reranker:0.6b`
- **Insight:** 15-30% precision boost for 0.5GB VRAM — excellent ROI

### T-270: "Healing agent integration — semantic pattern matching via fw ask"
- **Status:** captured (horizon: next)
- **Last action:** Task created referencing RQ-4 §4, §6
- **Next step:** Depends on T-264 (fw ask CLI)
- **Blockers:** T-264 must be built first
- **Insight:** Replaces 126 lines of fragile bash keyword matching with one semantic query

## 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

Run `fw audit` to check if any trigger conditions are met.

## Decisions Made This Session

1. **Qwen3-14B Q4_K_M as primary model** (replacing qwen2.5-coder-32b IQ2_M)
   - Why: 7x faster, better quality (Q4 vs IQ2_M), toggleable thinking, 9.3GB fits
   - Rejected: GPT-OSS 20B (14GB too tight), DeepSeek R1 14B (always-on thinking), keep current

2. **Single model with think toggle** (not dual-model setup)
   - Why: One model in VRAM, no swap latency, simpler infrastructure
   - Rejected: Two-model router (can't fit both, 5-15s swap penalty)

3. **`fw ask` CLI as keystone** (build before other integrations)
   - Why: All 8 downstream enhancements depend on programmatic Q&A access
   - Rejected: Direct HTTP from bash (fragile, requires server)

4. **Saved answers as indexed markdown** (in .context/qa/)
   - Why: Zero new infra, indexed by existing search, git-trackable
   - Rejected: SQLite (not indexable), Redis (new dependency)

5. **LATEST.md as symlink** (T-260 fix)
   - Why: Editing session file auto-reflects in LATEST.md, prevents D8 audit FAIL
   - Rejected: Keep as copy (caused push-blocking bug)

## Things Tried That Failed

1. **Push with D8 FAIL** — LATEST.md had 7 TODOs because handover.sh `cp` created a separate copy. Editing the session file didn't update LATEST.md. Fixed by switching to `ln -sf` symlink (T-260).

## Open Questions / Blockers

1. T-261 needs human GO decision before any build tasks can start
2. T-262 needs `ollama pull qwen3:14b` on host (~9GB download) before implementation

## Gotchas / Warnings for Next Session

- LATEST.md is now a symlink (T-260) — `git add` may need `-f` flag if gitignore interferes
- Ollama model cold start takes ~20s — test with warm model for accurate speed comparison
- Flask template caching — restart server after template edits
- The pre-push audit takes ~2 minutes — be patient or push in background

## Suggested First Action

Run `fw inception decide T-261 go --rationale "..."` to approve Phase 2, then `ollama pull qwen3:14b` to download the model, then start T-262 (model replacement — highest impact task).

## Files Changed This Session

- Created: docs/reports/T-261-*.md (6 research reports), .tasks/active/T-260..T-270 (11 task files)
- Modified: agents/handover/handover.sh (symlink fix), .context/handovers/LATEST.md (→ symlink)

## Recent Commits

- 0fcfb37 T-261: Create 9 build tasks from Phase 2 research
- 44bac17 T-261: Q&A Phase 2 inception — research complete, 6 reports
- d841acc T-260: Complete — LATEST.md symlink fix verified
- 3fb97ca T-260: LATEST.md symlink instead of copy — fix handover sync bug
- 924cae4 T-012: Fill handover S-2026-0223-2233 TODOs

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

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