What problem does it solve? Pull request reviews are often inconsistent, miss third-party API misuse, or bury findings in verbose prose. This Skill enforces a repeatable review process that checks diffs against project conventions, mandates external technology research, and returns findings in a strict structured format. ## Core Features & Use Cases - Rule-based diff checking: Loads project rule files (guard clauses, ripple effects, code comments, no-follow-up-deferral) and flags violations with file:line references. - Mandatory dependency research: Requires web research on every third-party library used in the diff to verify correct usage, version-specific behavior, and common mistakes. - Structured output with caps: Returns a verdict (APPROVED / COMMENT / CHANGES REQUIRED), an issues table, optional architectural concerns, and inline comments with strict word limits. - Use Case: A reviewer asks the agent to evaluate PR #142 touching React components; the Skill reads the diff via gh, verifies Radix UI usage against current docs, and returns blocking and minor findings ready for the caller to post. ## Quick Start Review pull request 142 for code quality and architecture, then return the structured review body, inline comments, and verdict.