Conciseness

The body is dense and assumes Claude's competence, with no explanations of known concepts and exact paths throughout. A few Persistence Rules restate Routing Table entries ("Keep raw conversations out of `portfolio/`", "Put uncertain or still-evolving material in `notes/` or `inbox/` first"), which is minor duplication that keeps it below the lean score-5 anchor while well above score 3.

Actionability

Guidance is fully concrete for an instruction-only skill: exact repository paths, a routing table mapping each information type to a precise destination, a copy-paste command ("run `make check` from `/Users/saski/Code/personal-knowledge-vault`"), and a Good Defaults section covering common cases ("For 'remember this about me': propose a concise `portfolio/` update"). Specific examples cover the common cases, matching the score-5 anchor.

Workflow Clarity

A clear reading sequence ("First Files To Read" steps 1-6) and routing flow with explicit validation checkpoints ("Before writing an Obsidian wikilink, verify that the target note exists", "After vault edits, run `make check`"). It is not score 5 because there is no error-recovery feedback loop describing what to do when `make check` fails, and the vault edits are not a destructive/batch operation requiring the score-3 cap.

Progressive Disclosure

No bundle files exist, and the single-file body is well-organized into clear sections (Repositories, First Files To Read, Routing Table, Persistence Rules, Context Discipline, Link Discipline, Good Defaults). References to vault files ("vault/AGENT_GUIDE.md", "vault/_meta/conventions.md") are one level deep, clearly signaled, and point to an external system the skill navigates rather than nested skill content.

Specificity

"Route durable personal context and reusable knowledge between Arnesto and the personal knowledge vault" names the domain and one core action, with destinations enumerated, but does not list several distinct concrete capabilities. It exceeds the score-2 anchor (bare domain name) but falls short of the score-4 anchor, which expects several specific actions listed.

Completeness

It explicitly answers what ("Route durable personal context and reusable knowledge between Arnesto and the personal knowledge vault") and when, with three concrete trigger conditions ("Use when the user asks to remember, persist, capture, retrieve, or organize personal knowledge; when deciding whether information belongs in rules, skills, portfolio, notes, maps, or inbox; or when using personal-knowledge-vault as a low-context reference layer"). This matches the score-5 anchor pattern of explicit what AND when with concrete triggers.

Trigger Term Quality

"remember, persist, capture, retrieve, or organize" are natural phrases users would say, giving good keyword coverage. It is not score 5 because common synonyms such as "save this" or "note this" are missing, but it clearly exceeds the partial coverage of score 3.

Distinctiveness Conflict Risk

Named systems ("Arnesto", "personal-knowledge-vault") and destination-specific triggers create a clear niche with mostly distinct triggers. Not score 5 because the broad verb "remember" could fire for generic memory requests, a minor overlap risk with general memory-related skills.