---
session_id: S-2026-0220-0827
timestamp: 2026-02-20T07:27:14Z
predecessor: S-2026-0220-0826
tasks_active: [T-200, T-215]
tasks_touched: [T-215, T-200, T-XXX, T-193, T-155, T-198, T-214, T-132, T-202, T-151, T-196, T-211, T-203, T-184, T-204, T-179, T-180, T-191, T-131, T-194, T-206, T-186, T-188, T-197, T-189, T-130, T-157, T-205, T-213, T-209, T-156, T-199, T-111, T-212, T-187, T-169, T-207, T-168, T-190, T-195, T-208, T-120, T-210, T-201, T-192]
tasks_completed: []
uncommitted_changes: 3
owner: claude-code
session_narrative: "Major session: T-191 inception complete (GO), T-208-T-214 built, T-215 in progress. Component Fabric is real — 95 components, 12 subsystems, CLI + audit integration + session injection. Watchtower UI page partially done (graph template pending)."
---

# Session Handover: S-2026-0220-0827

## Where We Are

Component Fabric is built and operational. T-191 inception completed (GO), 7 build tasks completed (T-208 through T-214). `fw fabric` CLI works with 12 commands. 95 components registered (91% coverage), 12 subsystems. Audit integration and session start injection working. T-215 (Watchtower UI) is in progress — /fabric and /fabric/component/<name> pages done, /fabric/graph template needs writing (budget ran out before the graph template could be saved).

## Work in Progress

<!-- horizon: now -->

### T-215: "Component Fabric — Watchtower UI page (visual browser + graph)"
- **Status:** started-work (horizon: now)
- **Last action:** Created blueprint (web/blueprints/fabric.py), main page template (fabric.html), detail template (fabric_detail.html). Registered blueprint in app.py, added "Architecture" nav group in shared.py. Graph template (fabric_graph.html) was being written when budget hit critical.
- **Next step:** Write `web/templates/fabric_graph.html` with Cytoscape.js dependency graph visualization. The Python route `/fabric/graph` already exists in fabric.py. Then restart web server and verify all 3 pages via Playwright.
- **Blockers:** None — just needs the graph template file written
- **Insight:** Graph data (nodes + edges) is built in `_build_graph()` in fabric.py. Only enriched components (with depends_on/writers/readers) appear in graph. Uses Cytoscape.js from CDN.

<!-- horizon: later -->

### T-200: "Discovery layer design — pattern detection, omission finding, insight surfacing (T-194 Phase 4)"
- **Status:** captured (horizon: later)
- **Last action:** Untouched
- **Next step:** Start when OE test data accumulates
- **Blockers:** Needs OE data volume
- **Insight:** None

## Inception Phases

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

## Gaps Register

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

- **G-004** [low]: Multi-agent collaboration untested

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

## Decisions Made This Session

1. **T-191 GO decision** — All 4 GO criteria met after 5-phase inception across 3 sessions
   - Why: File-based schema answers all 6 use cases, warning-only enforcement, adaptive granularity works
   - Rejected: NO-GO (schema not too complex, file-based handles queries fine, overhead proportional)

2. **Single-direction edges, file-path as ID** — Phase 3 refinement
   - Why: Eliminates bidirectional drift, no C-XXX numbering to manage
   - Rejected: Bidirectional edges (maintenance burden), numeric IDs (collision risk)

3. **Warning-only enforcement** — No blocking gates for fabric registration
   - Why: Framework already has enough gates; fabric value is in querying, not forced compliance
   - Rejected: Commit-blocking registration gate (too much friction)

## Things Tried That Failed

1. **`grep -q` in verification commands** — SIGPIPE (exit 141) when piped from `fw` commands. Fixed with `grep -c > /dev/null` pattern. Third time hitting this — should be a practice.

## Open Questions / Blockers

1. Skeleton cards (85 of 95) have only auto-generated fields — enrichment needed over time
2. Graph template (`fabric_graph.html`) not yet written — was in progress when budget hit critical

## Gotchas / Warnings for Next Session

- Web server at :3000 needs restart for the new fabric blueprint to be available
- The `/fabric/graph` route exists in Python but the template file `fabric_graph.html` does not exist yet — will 500 until written
- `.fabric/components/.yaml` was accidentally created (empty slug from scan) — should be deleted

## Suggested First Action

Write `web/templates/fabric_graph.html` with Cytoscape.js visualization, then restart web server and verify /fabric, /fabric/component/<name>, and /fabric/graph pages.

## Files Changed This Session

- Created: `agents/fabric/` (dispatcher + 6 lib scripts), `.fabric/` (95 component cards, subsystems.yaml, watch-patterns.yaml), `web/blueprints/fabric.py`, `web/templates/fabric.html`, `web/templates/fabric_detail.html`, `docs/reports/T-191-cf-requirements.md`, `docs/reports/T-191-cf-data-model.md`, `docs/reports/T-191-cf-enforcement-design.md`, `docs/reports/T-191-cf-architecture-proposal.md`
- Modified: `bin/fw` (fabric routing), `web/app.py` (blueprint registration), `web/shared.py` (nav group), `agents/audit/audit.sh` (drift check), `agents/context/post-compact-resume.sh` (topology injection)

## Recent Commits

- b5df9d8 T-012: Session handover S-2026-0220-0826
- c1b426c T-215: Watchtower fabric page — overview, component list, detail view (graph pending)
- 12c3407 T-214: Batch-register 95 AEF components, 12 subsystems, 91% coverage
- 7af89ac T-212/T-213: Audit drift check + session start topology injection
- 79a86a1 T-208: Fix verification SIGPIPE (grep -q → grep -c)

---

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

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