Per-step timings showed the real cost was not the install I had just
cached:
Pre-commit checks Run pre-commit hooks 152s
Install dependencies 55s
The log explains it -- "pytest with coverage enforcement....Passed"
inside the Pre-commit checks job. `pre-commit run --all-files` fires the
pytest-coverage hook, which runs every python_pkg suite with
--cov-fail-under=100: precisely what the Python tests workflow had
already done on the same commit. Two full 2174-test runs per push.
SKIP=pytest-coverage in that job only. It is the one hook skipped, and it
is skipped for being DUPLICATED rather than for being slow -- noted in
the workflow so it gets dropped if Python tests ever goes away.
Also checked and deliberately left alone:
session-autopsy-hook-mutations costs ~50s locally, but self-skips when
~/.claude/hooks is absent, which is always true on a runner. It was never
a CI cost.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PJrqKERAo5QUeEHWS5Asgp
