Conciseness

The ~85-line body is lean and assumes Claude's competence: no basic concepts are explained, and every note carries non-obvious information ("Roughly 40% of a long-lived cache exists only as prompts", "Names are stored in names.json keyed by the cluster's dominant vocabulary, not its id"), fitting the anchor-5 example with no trimmable over-explanation.

Actionability

All three steps give copy-paste-ready commands (`obsidian-wiki sessions-build --json`, `sessions-clusters --unnamed --json`, and a complete `sessions-name --from -` heredoc with a real JSON payload), plus a flags table with concrete when-to-use guidance and the exact fields to report from `clusters.json` — fully executable with common cases covered.

Workflow Clarity

The three steps are clearly sequenced with real checkpoints (report headline numbers after build; "On repeat runs --unnamed is usually empty" as a no-op check; the Notes section gives an explicit error-recovery loop: "If it looks wrong, --full rebuilds from scratch; nothing is lost"). It falls short of anchor 5 only because there is no explicit verification that submitted cluster names were applied; the destructive/batch cap does not bind since the operation writes only derived sidecar data and an explicit recovery loop exists.

Progressive Disclosure

No bundle files exist and none are needed: the body is well-organized into routed sections (skill-selection table, three step sections, Notes), with nothing that belongs in a separate file and easy navigation throughout — fitting the simple-skill exception where a compact, well-sectioned skill with no need for external references scores 5 on organization alone.

Specificity

The description lists several concrete actions — "Build or refresh a browser-viewable topic graph", "using local clustering", "indexes raw sessions and never writes to the vault" — but omits the cluster-naming and topic-reporting capabilities, so coverage has minor gaps rather than being comprehensive (anchor 4, not 5).

Completeness

It clearly answers what ("Build or refresh a browser-viewable topic graph over Claude session history using local clustering") and when ("Use for mapping or clustering sessions, recent or stale topic analysis, or rebuilding/showing the session graph") with concrete trigger phrases, exactly matching the anchor-5 pattern.

Trigger Term Quality

"Use for mapping or clustering sessions, recent or stale topic analysis, or rebuilding/showing the session graph" covers natural phrases users would say ("session graph", "clustering sessions", "topic analysis"), but a few common variations such as "topics overview" are absent, matching anchor 4 rather than the synonym-dense anchor 5.

Distinctiveness Conflict Risk

It carves out a clear niche (sidecar graph over raw sessions) and explicitly disambiguates from the nearest sibling: "Unlike wiki-history-ingest, it indexes raw sessions and never writes to the vault" — minimal conflict risk per anchor 5.