What problem does it solve? Ordinary code review and green CI routinely miss semantic defects: string-compared watermarks, swallowed exceptions, fail-open checks, and fake-green test runs. This Skill performs a structured adversarial review of every PR before it enters the merge queue, assuming the diff is defective and hunting for what breaks and when. ## Core Features & Use Cases - Nine review dimensions: correctness and data flow, boundary polarity, contracts, silent failure, security, unbounded growth, test quality, design invariants (R1-R4), and documentation sync, each with concrete defect classes drawn from real incidents. - Verification-chain validation: proves CI green is real before reviewing by inspecting run durations, artifacts, coverage gates, and proof-of-work, catching fake-green signatures like seconds-long full suites. - Pattern library matching: matches diffs against a catalog of defect classes the repo has actually shipped, plus adversarial techniques like impact-surface tracing and reverse scenarios. - Use Case: Before enqueueing a PR that touches the event pipeline, run this Skill to verify CI genuinely ran, trace watermark advancement on failure paths, and produce a P0/P1/P2 report posted as a PR comment. ## Quick Start Run an adversarial review on PR number 123 and post the verdict report as a PR comment.
