Every line earns its place. No explanations of what Conventional Commits is or how git works. The rules are stated as terse directives, and the anti-patterns ('What NEVER goes in') are sharp and specific. The tone itself models the skill's purpose.

Provides concrete, copy-paste-ready examples with both good and bad outputs. The rules are specific enough to execute (character limits, allowed types, imperative mood verbs, bullet style). The examples show real commit messages with body formatting, issue references, and breaking change notation.

This is a single-task skill (generate a commit message), and the workflow is unambiguous: read the diff, apply the rules, output a code block. The 'Auto-Clarity' section acts as a validation checkpoint for when body is mandatory. The 'Boundaries' section clearly scopes what the skill does and doesn't do. No destructive or batch operations are involved.

For a standalone skill under 50 lines with no need for external references, the content is well-organized into logical sections (Rules, Examples, Auto-Clarity, Boundaries). No bundle files are needed, and the structure supports quick scanning.

Lists multiple specific concrete actions: 'Ultra-compressed commit message generator', 'Cuts noise from commit messages while preserving intent and reasoning', 'Conventional Commits format', 'Subject ≤50 chars', 'body only when why isn't obvious'. These are concrete, actionable details about what the skill does.

Clearly answers both 'what' (ultra-compressed commit message generator with Conventional Commits format, subject ≤50 chars, body only when why isn't obvious) and 'when' (explicit 'Use when...' clause with multiple trigger phrases plus auto-trigger condition).

Excellent coverage of natural trigger terms users would say: 'write a commit', 'commit message', 'generate commit', '/commit', '/caveman-commit', 'staging changes'. These are highly natural phrases a user would actually type.

Highly distinctive niche: commit message generation with a specific style (ultra-compressed, caveman). The unique slash commands (/caveman-commit) and specific format constraints (≤50 chars) make it clearly distinguishable from generic git or coding skills.