What problem does it solve? Plans drift from the code they were written against and from the specs they claim to satisfy, and approving an inconsistent plan ships the wrong thing. This Skill performs a read-only cross-artifact consistency check before human approval, surfacing every contradiction, coverage gap, and stale citation so reviewers approve against evidence instead of assumptions. ## Core Features & Use Cases - Consistency Matrix: Checks plan-to-intent coverage (gaps and scope drift), plan-to-code grounding (stale path:line citations and missing symbols), plan-internal contradictions, and intent-to-code overlap (already-done work). - Structured Findings Report: Writes a Markdown report classifying each finding by type, location, severity (blocker or warning), and a one-line impact statement, which the /next phase gate requires before advancing to approval. - Use Case: Before approving an implementation plan in a gated workflow, run the consistency check to discover that step 3 cites a file that no longer exists and that an acceptance criterion has no corresponding plan step, then route the plan back for revision instead of approving it. ## Quick Start Run a consistency check on the current plan against its spec and the working tree, and write the findings report so the phase gate can advance to approval.