A refactor without a gate silently regrows, so this is the part that makes the
cap stick. Until now the repo had no root .pre-commit-config.yaml at all --
`git commit` ran zero hooks, and the five subproject configs only covered their
own directories.
Adds a root config wiring scripts/check_file_length.sh as a local hook, and
carries the same hook in each of the five subproject configs so committing
with one of those is gated too. Staged files only, so an unrelated commit
never breaks on a violation it did not introduce; exit 1, not a warning; no
baseline and no allowlist, since those are suppressions.
Verified in a throwaway worktree, both directions:
- a staged 261-line file fails the commit (exit 1, HEAD unchanged, no
commit object created)
- a staged 200-line file commits normally (exit 0)
The 44 files still over the cap cannot block this: the hook only ever sees
what a commit touches.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CFSGeWxHPY5rHUGrPqhcmG
