What the reviewer found
SessionStart runs .claude/hooks/nvm-path.sh on every session, which sources ~/.nvm/nvm.sh and appends one export PATH line to CLAUDE_ENV_FILE so the repo's Node version is on PATH for every later Bash command. Exits silently when nvm is absent; local only, but it changes the session environment.
unconditional— runs without any action from the user
What was read
The hook definition and the script it runs, fetched from TryGhost/Ghost:
.claude/settings.json.claude/hooks/nvm-path.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.