Conciseness

The body is dense with operational rules Claude would not already know (page templates, provenance syntax, retrieval cost ladder, naming rules) and avoids explaining generic concepts like Obsidian or markdown. Minor over-explanation could be trimmed — e.g., the ❌/✅ tag-spacing dialogue and the multi-sentence graph-view rationale for the naming rule — so it falls just short of the 'every token earns its place' anchor.

Actionability

For an instruction-only skill the guidance is fully concrete and copy-paste ready: complete page and project-overview templates, exact index/log entry formats with parseable field syntax, exact provenance markers (`^[inferred]`, `^[ambiguous]`) with worked examples, specific grep patterns (`Grep -A <n> -B <n> "<term>" <file>`, `Grep "\[\[.*?\]\]"`), a directory tree, and an env-var list. These cover the common cases the skill governs.

Workflow Clarity

The processes the skill itself owns are clearly sequenced: the retrieval-primitives escalation ladder has an explicit rule and cost rationale, the ingest-mode table gives when-to-use guidance routed through "Use wiki-status to see the delta and get a recommendation", and maintenance checkpoints appear ("Rebuild this after every ingest operation", "wiki-lint recomputes them and flags drift"). Validation for the destructive rebuild/restore flow is delegated to wiki-rebuild rather than shown, which is a minor gap keeping it below a 5.

Progressive Disclosure

The body itself is well-sectioned, but the one bundle reference file (references/karpathy-pattern.md, containing the original pattern's rationale, tools, and applications) is never linked or mentioned anywhere in SKILL.md — the 'Reference' section lists only companion skills. This matches the anchor 'references present but not clearly signaled'; a 4 would require the existing reference to be surfaced with a clear pointer.

Specificity

Lists several concrete actions — "building and maintaining an AI-powered Obsidian wiki", "set up a new knowledge base", "guidance on the three-layer architecture (raw sources → wiki → schema)" — with only minor gaps (some soft verbs like "understand" and "discussing"). Not a 5 because the actions are more conceptual/curatorial than fully comprehensive operational coverage; not a 3 because multiple distinct, specific capabilities are explicitly named.

Completeness

Clearly answers both: what ("The foundational knowledge distillation pattern for building and maintaining an AI-powered Obsidian wiki") and when, via two explicit trigger clauses ("Use this skill whenever the user wants to understand the wiki pattern, set up a new knowledge base..." and "Also use when discussing knowledge management strategy, wiki structure decisions..."). Both are present with concrete trigger phrases, matching the top anchor; a 4 would require the 'when' to be less explicit or specific.

Trigger Term Quality

Good natural keyword coverage: "wiki", "Obsidian", "knowledge base", "knowledge management", "wiki structure", "organize distilled knowledge" — phrases a user would plausibly say. Missing a few natural synonyms and variations (e.g., "second brain", "Zettelkasten", "notes", "vault"), keeping it below the comprehensive synonym/extension coverage of a 5.

Distinctiveness Conflict Risk

Occupies a clear niche (the Obsidian LLM-wiki theory/pattern) with distinct triggers, and explicitly disambiguates from sibling skills: "This is the 'theory' skill — other skills handle specific operations (ingesting, querying, linting)". This active boundary-setting minimizes conflict risk, matching the top anchor.