Agent guard test flaw: a guard you can't test off its host is just a launchd check
petrusenko_max · x · 2026-10-31
The author describes a blind spot found while testing a cron-guard for agents: the original test called kickstart directly on the protected machine, so it only held on one OS. He made it OS-independent and distilled a principle — "a guard you can't test off the box it guards is just a launchd check." The takeaway: guard logic must be independently testable in isolation or across environments, or your test shares the same assumptions as the thing it protects.
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