What the reviewer found
The HTML comment is a version marker for an auto-updated instructions block, not a hidden directive. The `rm -rf`/`git reset --hard` text is an explicit forbidden-commands rule, and the flagged curl line installs the named third-party CLI "ubs" (ultimate_bug_scanner) from its own public repo, which the installer should simply be aware of.
installs-software— installs software
What was read
The file as it ships in OmelchMichael/mcp_agent_mail:
AGENTS.md
What the static scan said
The scan flagged 4things. The reviewer kept 0 and dismissed 4 as false.
P2Hidden instructions — false positiveSC2Downloads and executes remote code — false positiveRMRecursive force delete — false positiveNETMakes network calls — false positive
How this review was made
Sonnet 5 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.