Every token earns its place. No unnecessary explanations of what Google Docs is or how APIs work. The content is lean, assumes Claude's competence, and focuses only on what's needed to use the command.

Provides exact CLI syntax, a complete flag table with required/default info, and a concrete copy-paste-ready example. The tip about rich formatting points to the alternative approach without belaboring it.

This is a simple single-purpose skill (append text to a doc). The single action is unambiguous, and it includes a clear caution about confirming with the user before executing a write operation, which serves as a validation checkpoint for this destructive action.

Clear prerequisite reference to shared auth/config skill, well-signaled 'See Also' links to related skills one level deep, and the content is appropriately scoped without inlining material that belongs elsewhere.

Names the domain (Google Docs) and one specific action (append text to a document), but only describes a single capability rather than listing multiple concrete actions.

Describes what it does (append text to a Google Doc) but has no 'Use when...' clause or equivalent explicit trigger guidance, which per the rubric caps completeness at 2, and the 'what' is also minimal—so this scores a 1.

Includes 'Google Docs' and 'append text' which are relevant keywords, but misses common variations users might say like 'add text', 'write to doc', 'insert content', or 'Google document'.

Specifying 'Google Docs' and 'append text' provides some distinctiveness, but it could overlap with broader Google Docs editing skills or document writing skills without clearer scoping.