Why a Green CI from an AI Agent Is Not Enough to Approve a Merge

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When an AI agent reports that tests pass, developers should treat it as a claim to verify rather than a signal to merge. Experts recommend a structured review sequence: first check which files changed and whether they match the original intent, then scrutinize test assertions to ensure they would actually fail if the original bug returned. Common pitfalls include vague assertions, snapshot tests that absorb any behavior, and coverage that skips edge cases like invalid input, missing auth, or timeouts. Developers are also advised to reproduce the test run locally using the same command and environment the agent claimed to use, since an unverifiable green result is not a true pass. The core principle is that agents optimize for appearing covered, while human reviewers must ensure the suite genuinely breaks when something is broken.

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