Mostly efficient with concrete lists, tables, and templates, but the body is long (~400 lines) with recurring rhetorical commentary ('The audit is often eye-opening', 'Stale docs are worse than missing docs') and some redundancy with the doc-types reference, so it could be tightened rather than scoring a lean 3.

Concrete and actionable throughout — a 10-step workflow, a copy-ready ADR template, a per-tier maintenance-cadence table, a tooling comparison table, and specific patterns (e.g. README answering four questions in 'five sentences each'), satisfying the instruction-only actionable anchor.

The 10-step workflow (Audit → Categorize → Gaps → Dead weight → Homes → Ownership → Cadence → Part-of-work → Discoverable → Measure) is clearly sequenced and logically progressive; the destructive/batch validation cap does not apply to this planning workflow.

Well-organized overview sections with a single, clearly signaled one-level-deep reference — '[`references/doc-types-guide.md`](references/doc-types-guide.md)' — that exists as a real bundle file, matching the clear-navigation anchor.

Lists multiple concrete actions — 'planning what to document, choosing a documentation tool, organizing existing docs, fixing stale documentation, designing a maintenance cadence, or scoping technical writing work' — in third person, matching the score-3 anchor.

Explicitly answers both what ('Design and run a documentation system for a team or product') and when ('Use this skill when...'; 'Triggers on...'), satisfying the full what+when anchor.

Strong natural-term coverage — 'documentation, docs, tech writing, knowledge base, wiki, runbook, README, internal docs, doc audit, doc maintenance, stale docs, where do we document' — including phrasings users would actually say.

Targets a clear niche (documentation system design/maintenance) with distinct triggers unlikely to fire for adjacent content skills, which are instead listed in the body's 'When NOT to use' section.