Conciseness

The body is lean — no concept tutorials, tight tool-call examples — but the directory-boundary rule is stated four times ("Why", Workflow step 2, "Anti-patterns", "Checklist") and the opener "The user wants to resume work." is filler. This matches anchor 4 (efficient, minor over-explanation that could be trimmed) rather than anchor 5's every-token-earns-its-place; it is well above anchor 3's noticeable padding.

Actionability

Fully executable guidance: copy-paste tool calls (`memory_sessions { "limit": 20 }`, `memory_recall` with limit 10), an exact match predicate (`session.cwd === projectPath || session.cwd.startsWith(projectPath + sep)`), and a concrete expected-output example. This matches anchor 5 (copy-paste ready, covers common cases); anchor 4 would imply missing key details, which is not the case.

Workflow Clarity

Five clearly sequenced steps with explicit branches ("No match: fall back to the single most recent session overall", "Prefer completed over abandoned"), empty-session handling, question-first ordering, and a closing verification checklist. The read-only task needs no destructive/batch validation cap, and the explicit fallbacks plus checklist satisfy anchor 5 better than anchor 4's 'minor validation gaps'.

Progressive Disclosure

A ~60-line, well-sectioned single file (Quick start, Why, Workflow, Anti-patterns, Checklist, See also, Troubleshooting) whose only external pointer is one clearly-signaled, one-level-deep reference ("See ../_shared/TROUBLESHOOTING.md if memory_sessions or memory_recall is not available"). Nothing needs splitting out, so this matches the simple-skill exception and anchor 5; anchor 4 would require organization gaps that are not present.

Specificity

Quotes concrete actions — "Resume the most recent agent session for the current working directory, leading with any unanswered question" — naming the domain and 2 specific actions. It fits anchor 4 (several specific actions, minor gaps): the summarization/next-step behavior from the body is not reflected, keeping it below comprehensive anchor 5, but it is more concrete than the 1-2-action anchor 3 example.

Completeness

Explicitly answers both: what ("Resume the most recent agent session for the current working directory, leading with any unanswered question") and when ("Use when the user says...") with concrete trigger phrases. This mirrors the anchor-5 example exactly; the explicit 'Use when' clause rules out anchor 4.

Trigger Term Quality

Natural trigger phrases are comprehensive: "where were we", "resume", "handoff", "pick up where I left off", plus the context condition "starts a session with no fresh context". Synonym coverage matches the anchor-5 example pattern; no common variation is obviously missing, so it is above anchor 4.

Distinctiveness Conflict Risk

"resume", "handoff", and "pick up where I left off" define a clear niche, but the skill body's own 'See also' lists closely related siblings (recap, session-history, recall) that the description does not disambiguate from — matching anchor 4 (mostly distinct, minor overlap risk with closely related skills) rather than anchor 5's minimal conflict risk.