sync-tripit (adaptive scheduler)

Process steps in order. Do not skip ahead.

Silence rule: produces NO user-visible output. The precheck delegates wake-payload composition to flight-assist/sync_tripit.py, which emits wake_agent: true only on tracked-flight added/removed events.

Hard rules

• No byAir call without the gate passing. precheck.py:_should_sync_now() is the sole authority on whether a 5-min fire becomes a byAir round-trip.
• No state writes here. All state mutations live in flight-assist/sync_tripit.py + flight-assist/state.py.

Step 1 — Diagnose a failed precheck run

This step fires only when the precheck itself failed to execute. Gate-passed runs forward sync_tripit.py's output directly; gate-failed runs emit silent wake_agent: false. Reaching this skill body means the outer-boundary handler caught an exception and emitted {"wake_agent": false, "data": {"reason": "precheck_internal_error"}}.

Inspect the agent-runner host log for the Python traceback the script wrote to stderr, then match against:

Corrupt state file — flight-assist/state.py raises StateError on JSON corruption or schema-version mismatch. Inspect and remove:

python3 -m json.tool /workspace/state/flight-assist/active-flights.json
ls -la /workspace/state/flight-assist/flight-*.json
# remove any file that fails parse — next sync repopulates from byAir
rm /workspace/state/flight-assist/<bad-file>.json

Missing flight-assist mount — the precheck imports from the co-shipped flight-assist skill. If only sync-tripit is installed, the precheck raises FileNotFoundError at import. Verify:

ls /home/node/.claude/skills/tessl__flight-assist/sync_tripit.py

If absent, both skills must be reinstalled from the same tile (jbaruch/nanoclaw-flight-assist).

byAir subprocess timeout — the precheck enforces a budget on sync_tripit.py (see precheck.py, _SYNC_SUBPROCESS_TIMEOUT constant). Persistent timeouts mean byAir is degraded; the next cadence cycle retries. Check the diagnostic log for the sync_subprocess_timeout reason:

grep sync_subprocess_timeout /workspace/state/flight-assist/precheck.log 2>/dev/null | tail -5

Filesystem permissions — read access to /workspace/state/flight-assist/. Verify the mount:

ls -la /workspace/state/flight-assist/

Finish here. Verify the fix by waiting for the next 5-min cadence fire and reading the host log for either a clean wake_agent: false (no precheck_internal_error payload) or a successful sync_tripit delegation. Do not retry inline; the next fire retries naturally.

References

• ../flight-assist/sync_tripit.py — the byAir → state sync this skill schedules
• ../flight-assist/state.py — state readers + state_dir()
• ../flight-assist/state-schema.md — active-flights.json and per-flight state shapes