Conciseness

The body is largely efficient — dense tables, terse bullets, no tutorials on concepts Claude already knows — but the RAG-vs-compounding contrast is stated twice ('Core principle' prose and the 'Why this works (vs plain RAG)' table), and the 'Related skills' section is partly promotional. This is 'efficient with minor instances that could be trimmed' (4) rather than 'every token earns its place' (5).

Actionability

The quick start gives copy-paste-ready commands ('python scripts/init_vault.py --path ~/vaults/research --topic "LLM interpretability"', slash-command invocations), the scripts table lists eight concrete tools each with a stated purpose and a '--help' entry point, and every referenced script and command was verified to exist. Specific examples cover the common init/ingest/query/lint/log cases, matching the 5 anchor.

Workflow Clarity

The three core operations are each given a numbered, sequenced summary with detail delegated to reference files, and checkpoints exist — the wiki-ingestor 'applies after your approval', lint is an explicit periodic health check, and the iron rule guards writes. It falls short of 5 because the ingest summary (a batch operation touching '10-15 relevant pages') has no inline validation/feedback step; that detail lives only in references/ingest-workflow.md.

Progressive Disclosure

The body is a genuine overview: all 8 referenced files in references/ exist with substantive content (76-194 lines each), all 8 scripts exist, and the assets/templates are present. References are one level deep, each clearly signaled with a one-line description in the 'Reference docs' section, making navigation easy — matching the 5 anchor.

Specificity

The description lists four concrete, distinct actions — 'incrementally ingests sources, updates entity/concept pages, maintains cross-references, and keeps a synthesis current' — giving comprehensive coverage of the skill's capabilities within its domain. It clearly matches the 5 anchor rather than 4 because there are no meaningful gaps in the action coverage.

Completeness

It explicitly answers 'what' (ingests sources, updates pages, maintains cross-references, keeps synthesis current) and 'when' (explicit 'Use when...' clause followed by concrete trigger phrases). The structure mirrors the 5 anchor example; it is well above 4, where the 'when' would be less explicit.

Trigger Term Quality

It quotes seven natural trigger phrases — 'second brain', 'Obsidian wiki', 'personal knowledge management', 'ingest this paper/article/book', 'build a research wiki', 'compound knowledge', 'Memex' — covering synonyms a user would naturally say, plus a behavioral condition ('knowledge to accumulate across sessions instead of being re-derived by RAG'). This is comprehensive coverage including synonyms, matching the 5 anchor.

Distinctiveness Conflict Risk

It carves out a clear niche — a maintained, compounding Obsidian wiki — and even contrasts itself with RAG ('instead of being re-derived by RAG on every query'), avoiding generic note-taking terms that would overlap with simpler Obsidian skills. Distinct triggers and minimal conflict risk match the 5 anchor.