What problem does it solve? Code review often degrades into style nitpicks, hypothetical risks, or rubber-stamp approvals. This Skill focuses review on material defects: broken invariants, incorrect behavior on valid input, misleading green checks, and architectural promises the mechanism cannot keep, with severity calibrated to the actual product being built. ## Core Features & Use Cases - Defect-focused PR review: Reconstructs the change contract, finds the critical path, reproduces suspected bugs with executable evidence, and reports only material findings with P1/P2 severity. - RFC and architecture review: Checks that every stated objective chains to a mechanism, an observable gate, migration compatibility, and a defined failure state. - Re-review and false-green detection: Verifies prior findings against the new head without moving goalposts, and audits CI checks that appear to validate more than they do. - Use Case: A reviewer suspects a passing pipeline is hiding a failure. The Skill reproduces the case, shows the pipeline swallowing an exit code, classifies it as P1, and proposes both a minimal fix and a structural fix using existing primitives. ## Quick Start Ask the agent to review this PR and report only the real bugs that block it, with severity calibrated to the type of application being built.
