The previous commit turned tracked `CLAUDE.md` into a symlink to an *untracked*
`AGENTS.md`, deleting 237 lines of documentation from the repo -- the content
survived only in my working tree, and a fresh clone would have got a dangling
symlink. The symlink predates this session (it was already a type-change in the
working tree at the start); committing it without tracking its target is what
broke it.
Tracking `AGENTS.md` then tripped the 250-line cap, so the sync-latency
material moves to `docs/sync-latency.md` behind a pointer -- the same shape the
repo already uses for `docs/meal-schedule.md` and the Flutter rules. That file
carries the measurements, the three narrow-pull state invariants, the Tk
threading rules, why the gate's publish must stay synchronous under
`Type=oneshot`, the timeout asymmetry, and the `revs/` marker trap.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LJ5YnA3CERitQ57HjMu2Qz
