Two stories landed at the merge gate today (961, 962) with everything
else green, killed by a single missing `///` doc comment. The merge
gate runs source-map-check; script/check (and therefore the
mcp__huskies__run_check tool that coders use during iteration) did
not. So coders only saw the failure when the merge gate fired —
minutes after they thought they were done.
Chain source-map-check after cargo check so every iteration loop
catches a missing `///` instantly. AGENT.md already calls this out as
a required pre-commit step; making it part of the fast feedback loop
removes the "I forgot" failure mode.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
dave