Names the domain (verification before claims) and some actions ('running verification commands', 'confirming output'), but doesn't list specific concrete actions like 'run tests', 'check linter', 'verify build passes'.

Clearly answers both what ('running verification commands and confirming output before making success claims') and when ('about to claim work is complete, fixed, or passing, before committing or creating PRs'). Has explicit 'Use when' clause.

Includes natural keywords users/Claude would encounter: 'complete', 'fixed', 'passing', 'committing', 'creating PRs', 'success claims'. These are terms that naturally appear when finishing work.

Clear niche focused on verification before completion claims - distinct from general testing skills or commit message skills. The specific trigger of 'about to claim work is complete' creates a unique activation context.

Extremely lean and efficient. Uses tables, bullet points, and minimal prose. Every section earns its place with no explanation of concepts Claude already knows. The repetition is intentional reinforcement for a critical behavioral rule, not padding.

Provides concrete gate function with numbered steps, specific command patterns (✅/❌ examples), clear tables mapping claims to requirements, and explicit red flags. The guidance is immediately actionable without ambiguity.

The 5-step gate function is crystal clear with explicit validation checkpoints. The regression test pattern shows a complete red-green verification cycle. Feedback loops are built into the core workflow (verify → if NO → state actual status).

Well-organized with clear sections (Overview, Gate Function, Common Failures, Red Flags, etc.). For a behavioral skill of this scope (~100 lines), no external references are needed. Content is appropriately structured for quick scanning and reference.