Lists multiple specific concrete actions: analyze codebase with tokei for line counts by language, difft for semantic AST-aware diffs, get project overview. Names specific tools and their purposes.

Clearly answers both 'what' (analyze codebase with tokei and difft for line counts and semantic diffs) and 'when' (explicit 'Triggers on:' clause with multiple natural trigger phrases).

Excellent coverage of natural trigger terms users would say: 'how big is codebase', 'count lines of code', 'what languages', 'show semantic diff', 'compare files', 'code statistics'. These are natural phrasings a user would actually use.

Highly distinctive by naming specific tools (tokei, difft) and a clear niche (code statistics and semantic diffs). Unlikely to conflict with general code analysis or file comparison skills due to the specific tool references and focused scope.

The content is lean and efficient. Every section provides direct, usable commands without explaining what line counting or diffs are. The comparison table for difft vs traditional diff is compact and informative rather than verbose. The 'When to Use' section is slightly unnecessary (Claude knows when to count lines), but it's brief enough not to significantly waste tokens.

All commands are concrete, copy-paste ready bash commands with real flags and realistic examples. The sample output helps Claude understand what to expect. The quick reference table provides an excellent lookup for specific tasks.

This is a simple, non-destructive skill (read-only analysis tools) that doesn't require multi-step workflows or validation checkpoints. The commands are standalone and unambiguous, and the progression from basic to advanced usage within each tool section is clear.

The skill provides a concise overview with all essential commands inline, then clearly signals one-level-deep references to advanced materials (tokei-advanced.md and difft-advanced.md). Content is well-organized into logical sections with appropriate depth for a SKILL.md.