Conciseness

The body is almost purely operational with no concept explanations, but contains several avoidable redundancies: a duplicated "Update index.md" section inside Step 6, the code-understand guard stated twice (Step 3b opening and closing), and a mis-numbered list (1, 3, 4) in "Before You Start". This matches "mostly efficient but... could be tightened"; it is not a 2 because nothing is padded with knowledge Claude already has.

Actionability

Highly executable throughout: copy-paste bash commands (git merge-base check, obsidian-wiki code-understand/memory sync, qmd update/embed/get), exact JSON manifest and YAML frontmatter templates, and verbatim warning text for the rebase fallback. Minor gaps — "Compute the rough fractions" for provenance and reliance on llm-wiki/SKILL.md sections — keep it below the fully-self-contained score-5 anchor.

Workflow Clarity

Steps 1–7 are clearly sequenced with real validation checkpoints (SHA ancestor check with explicit rebase/force-push fallback and warning, code-understand and QMD guards, post-refresh verification via qmd get, and an enumerated QMD status report), so the batch-operation cap does not apply. The mis-numbered Before-You-Start list and the duplicate Step 6 section headers slightly blur the sequence, holding it at 4 rather than 5.

Progressive Disclosure

Well-sectioned with one-level-deep, clearly signaled external references ("Writing Profile Resolution section in llm-wiki/SKILL.md", "Link Format section", "Provenance Markers section", ".skills/llm-wiki/references/MEMORY.md"). Minor gaps: the ~40-line inline page-format/frontmatter template and provenance spec could live in a local references/ file, and the cross-referenced files are not part of this bundle.

Specificity

The description names the domain ("current project" → "Obsidian wiki") and one concrete action ("Sync knowledge... distilled into the vault"), but does not list several specific operations (page distillation, cross-linking, manifest tracking), matching the 'names domain and 1-2 concrete actions' anchor. It is not the level above because it lacks the multi-action coverage of the score-4 anchor.

Completeness

Both "what" ("Sync knowledge from the current project into the Obsidian wiki") and "when" (explicit "Use when work already in the current project should be distilled into the vault") are present. Falls short of 5 because the when-clause is an abstract condition rather than concrete user trigger phrasing, though "@work update wiki" partially compensates.

Trigger Term Quality

Good natural keyword coverage: "wiki", "vault", "update wiki", "distill", "sync", plus the concrete trigger phrase "@work update wiki". Not a 5 because common synonyms like "notes", "knowledge base", or file/format terms are missing; not a 3 because the included terms are the phrases a user of this vault would actually say.

Distinctiveness Conflict Risk

The description carves a clear niche (current-project → vault) and explicitly routes against sibling skills ("wiki-capture saves the current conversation and wiki-ingest handles external/new sources"), giving distinct triggers with minimal conflict risk. It clearly matches the score-5 anchor rather than the minor-overlap wording of score 4.