Conciseness

The body explains no concepts Claude already knows and carries no filler; every sentence is a rule, invariant, or pointer (e.g., 'A failed write is recorded as **recommended**, and the run continues'). It is an 84-line orchestration overview that assumes the reader's competence and defers all detail to references, matching the 'lean and efficient; every token earns its place' anchor.

Actionability

Concrete, executable guidance throughout: 'Read `docs_root` from `<repo-root>/.compound-engineering/config.yaml`' with '<repo-root>` = `git rev-parse --show-toplevel`', a copy-paste two-option confirmation prompt, an explicit outcome enum (Keep/Update/Consolidate/Replace/Delete), and a verbatim subagent clause to carry into every spawn. For an instruction-only skill this is copy-paste-ready, fully specified guidance with no gaps.

Workflow Clarity

A clearly sequenced pipeline (Mode → Worth lens → Artifact Root → Scope → Investigate → Classify → Execute → Vocabulary Capture → Report → Commit → Discoverability Check) with explicit ordering constraints ('Read `references/classify.md` before assigning any of them') and explicit validation/error-recovery checkpoints: the auto-delete rule and its pre-checks, the failed-write→recommended fallback, docs_root validation that hard-stops naming the bad value, and 'Skip if nothing changed'. The destructive/batch cap does not apply because validation gates are stated inline and bundled validators are wired into the write flows.

Progressive Disclosure

The body is a pure overview that delegates every section's detail to a well-signaled reference ('**Read `references/modes.md` now.**'), and all ten referenced files exist in references/. Verified against the actual bundle: scripts/validate-frontmatter.py and scripts/validate-doc-claims.py are reachable via references/per-action-flows.md, and assets/resolution-template.md plus references/schema.yaml and references/yaml-schema.md are reachable the same way. Navigation is one level deep with clearly marked pointers, and content is appropriately split.

Specificity

The description names the domain ('the repo's captured learnings') and roughly two concrete actions — 'Refresh the repo's captured learnings against the current codebase' and 'auditing stale, overlapping, superseded, or drifted learnings'. It stays at 3 rather than 4 because the skill's actual maintenance actions (classify into keep/update/consolidate/replace/delete, apply fixes, report, commit) are absent, which is more than a minor coverage gap.

Completeness

It explicitly answers both questions: the 'what' ('Refresh the repo's captured learnings against the current codebase') and the 'when' with concrete triggers ('Use when auditing stale, overlapping, superseded, or drifted learnings'), plus a negative boundary ('avoid general refactor, debugging, or code review unless the learnings store is explicit') that sharpens the trigger further.

Trigger Term Quality

Natural trigger terms are present and specific: 'auditing', 'stale', 'overlapping', 'superseded', 'drifted', 'learnings', 'refresh'. Not a 5 because common user phrasings the body itself recognizes as intent ('cleaned up', 'culled', 'pruned', 'trimmed', 'outdated') are missing from the description, leaving a few natural synonyms uncovered.

Distinctiveness Conflict Risk

A clear niche (the learnings store under solutions/) with distinct triggers and an explicit disambiguation clause — 'avoid general refactor, debugging, or code review unless the learnings store is explicit' — that actively prevents firing for adjacent but wrong skills.