Cadence rationale

The check-cfps run is heavy — full-cohort Sessionize verification across every stored open/approved entry, plus web-search gap discovery — so this wrapper runs it in its own bounded container on a capped cadence rather than inline with other maintenance.

Why a cadence cap

CFP deadlines move on a multi-day horizon, so refreshing cfp-state.json periodically rather than daily keeps it current without paying the verification cost every day. The precheck enforces this with a filesystem cursor at /workspace/group/state/nightly-cfp-sync-cursor.json. The cap value and the wake/skip predicate are the precheck script's contract (SKILL.md names the script, whose CADENCE comment is the source for the exact value and the reasoning behind it).

Run ordering vs travel-schedule

check-cfps Step 7 reads /workspace/group/travel-schedule.json for its travel-conflict check. When the nanoclaw-flight-assist overlay is co-loaded, its travel-sync wrapper refreshes that file on an earlier cron slot, so this wrapper usually sees fresh data. The coupling is loose: check-cfps degrades gracefully when the schedule is stale or a conference's exact dates are unknown, and the wrappers gate independently — no hard ordering dependency exists.