What the reviewer found
Copilot instructions on GitHub Actions CI/CD practice: the HTML comment is an end-of-document marker and the rm -rf line is advice to remove temp files inside a Docker RUN step. The body was truncated at 48 KB in the troubleshooting section; both flagged lines are visible and the file is pure guidance.
What was read
The file as it ships in ssdeanx/AgentStack:
.github/instructions/github-actions-ci-cd-best-practices.instructions.md
What the static scan said
The scan flagged 2things. The reviewer kept 0 and dismissed 2 as false.
P2Hidden instructions — false positiveRMRecursive force delete — false positive
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.