What the reviewer found
PreToolUse on Bash runs scripts/format.sh (ruff check --fix, ruff format, optional yamlfix) whenever the command contains git commit, blocking the commit if formatting fails. SKIP_UPGRADE defaults to true so the pip install branch never runs; local formatter only.
What was read
The hook definition and the script it runs, fetched from zenml-io/zenml:
.claude/settings.jsonscripts/format.sh
What the static scan said
The 26-rule scan found nothing in this file; the review read it anyway.
How this review was made
Fable 5.1 read the files above on 7 September 2026 and answered three questions: is it dangerous to whoever installs it, is each scanner finding real, and what should the installer know. The verdict is bound to the file's hash; when the file changes, it is scanned afresh and reviewed again. A script that changes while the definition does not is not re-reviewed — that is a known gap. How the scan and the review work.