---
session_id: S-2026-0217-1631
timestamp: 2026-02-17T15:31:46Z
predecessor: S-2026-0217-1549
tasks_active: [T-107, T-111]
tasks_touched: [T-118, T-109, T-110]
tasks_completed: [T-118, T-109, T-110]
uncommitted_changes: 0
owner: claude-code
session_narrative: "Implementation session. Completed 3 inception tasks: T-118 (error-watchdog PostToolUse hook for silent error bypass), T-109 (fw bus result ledger for sub-agent dispatch), T-110 (systemd.path spike validated with <1s latency). All 3 inception decisions: GO. Active tasks reduced from 5 to 2."
---

# Session Handover: S-2026-0217-1631

## Where We Are

Productive implementation session that cleared the inception backlog. Three inception tasks completed with GO decisions: error-watchdog hook (T-118), result ledger protocol (T-109), and systemd.path trigger (T-110). The framework now has structural enforcement for error investigation (PostToolUse hook), a formal result ledger for sub-agent dispatch (fw bus), and validated that systemd can trigger autonomous agent work. Active task count reduced from 5 to 2.

## Work in Progress

### T-107: Initialize German pronunciation app project
- **Status:** captured — bridge task (unchanged)
- **Last action:** No work this session
- **Next step:** User decides project directory path, then `fw setup /path/to/pronunciation-app`
- **Blockers:** User decision on directory path
- **Insight:** fw setup wizard validated and bug-free after T-108 fixes

### T-111: Autonomous compact-resume lifecycle
- **Status:** captured (inception, unchanged)
- **Last action:** No work this session, but T-110 (systemd.path) validated a key prerequisite
- **Next step:** Map compact-resume lifecycle, identify mechanical vs judgment steps. T-110's results (systemd.path + `claude -p`) provide the trigger mechanism.
- **Blockers:** None
- **Insight:** T-110 confirmed Claude Code CLI supports non-interactive mode (`claude -p --max-budget-usd N --allowed-tools "..."`), enabling bounded autonomous invocation

## Inception Phases

**0 pending inception decisions** — all completed this session (T-118, T-109, T-110 all GO). T-111 remains captured (not yet started).

## Gaps Register

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

- **G-004** [low]: Multi-agent collaboration untested (note: T-109 result ledger partially addresses this)

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

## Decisions Made This Session

1. **GO on error-watchdog PostToolUse hook (D-025)**
   - Why: 7 systematic instances of silent error bypass across 3 root cause mechanisms. Two-layer enforcement (CLAUDE.md + hook) follows framework philosophy.
   - Alternatives rejected: CLAUDE.md only (instructional without structural), warn on all non-zero exits (too many false positives)

2. **GO on result ledger / fw bus (D-026)**
   - Why: T-073 simulation showed ~97% context savings (22KB payload → 500B manifest). Formalizes ad-hoc convention into protocol.
   - Alternatives rejected: SQLite (breaks YAML convention), real-time pub/sub (impossible with ephemeral agents), PostToolUse polling (adds latency to every call)

3. **GO on systemd.path trigger (T-110)**
   - Why: <1s trigger latency, zero dependencies, Claude Code CLI supports non-interactive mode
   - Alternatives rejected: inotifywait (extra package), named pipes (blocking/complex)

## Things Tried That Failed

No failed approaches this session. All 3 spikes validated on first attempt.

## Open Questions / Blockers

1. Where should the pronunciation app directory be? (T-107 — user decision)
2. What guardrails make autonomous compact-resume safe? (T-111 — bounded iteration count? mandatory human review every N cycles?)
3. Should the error-watchdog also monitor Write/Edit tool failures? (future enhancement)
4. testdev user on this machine still needs cleanup

## Gotchas / Warnings for Next Session

- Error-watchdog hook is in settings.json but was installed MID-SESSION — it takes effect NEXT session (hooks snapshot at start)
- systemd.path unit `fw-bus-watcher.path` is running — will trigger on files dropped in .context/bus/inbox/
- `fw bus` is live — use `fw bus manifest` to check for stale channels
- .context/bus/ is gitignored (ephemeral working data)
- 2 active tasks remain — T-107 blocked, T-111 ready for inception

## Suggested First Action

Check context budget, then:
- **Primary:** T-111 inception — map the compact-resume lifecycle. Prerequisites are now met (T-110 validated systemd.path + Claude CLI)
- **User decision needed:** T-107 (pronunciation app directory)
- **Build opportunity:** Production bus handler (leveraging T-110 systemd.path + T-109 fw bus)

## Files Changed This Session

- Created: agents/context/error-watchdog.sh (T-118), lib/bus.sh (T-109), agents/context/bus-handler.sh (T-110)
- Modified: .claude/settings.json (error-watchdog hook), lib/init.sh (bus dirs + error-watchdog in template), bin/fw (bus command routing + help), CLAUDE.md (result ledger docs + quick ref), .gitignore (bus dir)
- Completed: .tasks/completed/T-{118,109,110}-*.md, .context/episodic/T-{118,109,110}.yaml

## Recent Commits

- eac70eb T-110: Complete — systemd.path spike validated, inception GO
- 116e913 T-109: Complete — result ledger validated, inception GO (D-026)
- 59296d2 T-109: Implement fw bus — task-scoped result ledger for sub-agent dispatch
- ca97a6e T-118: Complete — error-watchdog deployed, inception GO
- 7127475 T-118: Deploy error-watchdog PostToolUse hook for Bash error detection

---

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

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