AGENTS.md requires review-relevant changes to land in the Copilot mirror in the
same PR, and the catalog-isolation rules are review-enforceable: a new web smoke
that spawns its own server, or a teardown that removes a work dir without first
awaiting stopChild, is something a reviewer should flag.
Mirrored as one line under "Gates and PR hygiene" rather than the AGENTS.md
paragraph. The mirror is read on every review and its own rule is "a
distillation, not a copy" — the mechanism (why the 409 appeared, why only the
catalog and not HOME is redirected, how the contract is tested) belongs in
AGENTS.md, while what a reviewer needs is the invariant and the two shapes that
violate it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HDdo1rNRVQnVRRdsqSrvG3
Signed-off-by: cliffhall <cliff@futurescale.com>
f060c97e8f