What the reviewer found
PreCompact (manual and auto) runs inline '/bin/bash -c' commands that only echo guidance text, the manual variant also echoing the custom_instructions field it reads from stdin with jq. No files touched, no network.
What was read
The file as it ships in ruvnet/ruflo:
.claude-plugin/hooks/hooks.json
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.