The Dev Review skill acts as a high-integrity quality gate for software development, specifically designed as the final verification phase of the /dev workflow. It transforms Claude into a disciplined reviewer that refuses to approve changes without verifiable test evidence—including mandatory E2E test results for user-facing features. By applying the 'Iron Law of Review,' the skill filters out subjective nitpicks and low-confidence noise, focusing exclusively on issues with an 80% or higher confidence score. This ensures that every approval is based on objective evidence rather than assumptions, significantly reducing bugs and regression risks.