The body is lean, assumes Claude's competence, and avoids explaining basic concepts; content is mostly purposeful with only minor redundancy in the examples section.

Provides concrete, specific guidance including exact file-path mappings, a required document structure, and a checklist, which is actionable for an instruction-only skill.

A numbered sequence and checklist exist, but signature changes and deprecations lack explicit validation/feedback checkpoints, and the build-verification step is implicit rather than a clear validate-fix-retry loop.

Well-organized sections with clear structure and no nested external references; appropriate for a self-contained skill that needs no bundle files.

Lists multiple concrete documentation actions—API reference, README files, JSDoc/TSDoc docstrings, usage examples, migration guides, deprecation notices, changelog entries—matching the multiple-specific-actions anchor.

Explicitly states what it does and provides a 'Use when...' clause covering when to invoke it, satisfying both what and when with explicit triggers.

Includes some natural triggers ('changing exported APIs', 'writing new package docs') but leans on developer jargon and misses common variations like 'update the docs' or 'add docs', so coverage is incomplete.

Scoped specifically to @data-client public API documentation, giving it a clear niche with distinct triggers unlikely to conflict with unrelated skills.