Conciseness

The body is lean and imperative throughout — "raw/ is immutable. Never edit files there. Read only.", "Minimum 5 file touches per ingest.", "Update `updated:` frontmatter on every page you touch" — with zero padding and no explanation of concepts Claude already knows. The only near-motivational line ("Don't skimp — the wiki's value comes from cross-references") carries a real behavioral instruction. Fits the 'every token earns its place' anchor; a 4 would require over-explanation to trim, which is absent.

Actionability

Mostly executable: concrete commands ("python <plugin>/scripts/ingest_source.py --vault . --source <path> --json", "update_index.py", "append_log.py --op ingest --title ... --detail ..."), concrete paths ("wiki/sources/<slug>.md"), and concrete frontmatter fields ("title, category: source, summary, source_path, ingested, updated"). Falls short of the 5 anchor because the `<plugin>` base path is never resolved anywhere in the body, and the summary-page template and contradiction-callout format are deferred without an inline example — 'minor gaps' per the 4 anchor, not the vague/pseudocode levels below.

Workflow Clarity

A clear 10-step sequence with an explicit pre-write checkpoint ("Wait for the user to confirm or redirect before writing"), merge detection via the `--json` brief, and a Red flags stop-list (outside raw/, exact duplicates, >5 contradictions). Because this is a batch operation touching 5-15 pages, the feedback-loop guideline applies, and post-write verification is missing — no step re-checks the regenerated index or the touched pages after the batch write. That is a 'minor validation gap' (4 anchor) rather than the absent-validation case (capped at 3), since pre-write validation and user gating are explicitly present.

Progressive Disclosure

Good structure: the body is a well-sectioned overview (Role, Inputs, Workflow, Rules, Red flags) that defers detail to a clearly signaled, one-level-deep reference — "Follow `engineering/llm-wiki/skills/llm-wiki/references/ingest-workflow.md` ... Summary:" — with templates referenced from the llm-wiki skill, and no nested references. Not a 5 because the skill bundles nothing locally while all referenced scripts/templates live behind the undefined `<plugin>` path, a minor organization/navigation gap; not a 3 because nothing that belongs in a separate file is inlined and references are prominent, not buried.

Specificity

The description lists multiple concrete actions — "Reads the source, proposes TL;DR and key claims", "flags contradictions with existing pages", "writes the source summary, updates cross-references across 5-15 pages, regenerates the index, and appends a standardized log entry" — with even a quantitative scope (5-15 pages). This matches the anchor 'lists multiple specific concrete actions; comprehensive coverage' and exceeds the 4-anchor, which tolerates coverage gaps; there are none here. Third-person voice is used throughout ('Reads', 'proposes', 'writes').

Completeness

It explicitly answers both questions: 'what' via the enumerated capability list, and 'when' via "Spawn when the user says \"ingest this\", \"add this paper/article/book to the wiki\", or drops a file into raw/"" — concrete trigger phrases, exactly matching the 5 anchor. A 3 would require a missing/weak 'when'; a 4 would require the 'when' to be less explicit, neither of which applies.

Trigger Term Quality

It covers natural trigger phrases with synonyms: "ingest this", "add this paper/article/book to the wiki", and the event trigger "drops a file into raw/". The paper/article/book enumeration provides the synonym coverage the 5 anchor requires; nothing common is missing for this domain. Not a 4 because the phrase set is comprehensive rather than having 'a few natural terms missing'.

Distinctiveness Conflict Risk

The niche is precise — "ingests a new source into an LLM Wiki vault" with vault-specific vocabulary (raw/ layer, synthesis pages, index regeneration) — and its triggers ("ingest this", "add this paper to the wiki") are unlikely to fire for any other skill. Fits the 'clear niche with distinct triggers; minimal conflict risk' anchor; the 4 anchor's 'minor overlap risk' does not apply.