Conciseness

The body is dense and assumes competence ("Same job as Anthropic defaults… difference is the tool-result they return is compressed"), but the compression/context tradeoff is restated across the intro paragraph, the "Rule of thumb" line, and "Why this exists" — minor instances that could be trimmed. Fits anchor 4 rather than 5 (some repetition) and clearly not 3 (no padding or explanations of known concepts).

Actionability

Provides fully concrete, executable guidance: exact output-contract templates ("<path:line-range> — <change ≤10 words>. verified: <re-read OK | mismatch @ path:line>"), enumerated terminal tokens ("too-big." / "needs-confirm." / "ambiguous." / "regressed."), sort orders, and spawn counts ("Spawn 2-3 `cavecrew-investigator` calls in one message"). This matches anchor 5; per the code-vs-instruction note, absence of code is not penalized when guidance is this precise.

Workflow Clarity

"Locate → fix → verify" is a clearly numbered 3-step sequence with an explicit validation checkpoint ("cavecrew-reviewer audits the diff"; builder's "verified: re-read OK | mismatch" re-read check) and anticipated failure tokens. Fits anchor 4 rather than 5 because there is no error-recovery loop after the reviewer flags issues; no destructive/batch cap applies.

Progressive Disclosure

The skill is a self-contained routing guide with no bundle files (references/, scripts/, assets/ are absent) and no external file references; all content (routing table, contracts, chaining patterns, anti-patterns) belongs inline at this size. Sections are well-organized and flat, matching the simple-skill exception for anchor 5 with no organization gaps to justify 4.

Specificity

Names three concrete per-agent capabilities — "locate code", "1-2 file edit", "diff review" — plus the differentiator "output is compressed, so main context lasts longer". Matches anchor 4 (several specific actions, minor gaps) rather than 5, since scope limits and edge cases are not covered.

Completeness

Explicitly answers both what ("delegate to `cavecrew-investigator` (locate code), `cavecrew-builder` (1-2 file edit) or `cavecrew-reviewer` (diff review)"; "output is compressed") and when ("When to delegate to … instead of working inline or using `Explore`"). The "when" is explicit routing guidance, so it clears the anchor-3 cap, but it is a routing rule with parenthetical task labels rather than fully concrete trigger phrases, fitting anchor 4 better than 5.

Trigger Term Quality

Includes natural terms a user or model would say — "locate code", "edit", "diff review", "delegate", and the competing preset name "Explore" — but misses common synonyms such as "find where X is defined", "search the codebase", or "review changes". Good coverage with a few natural terms missing fits anchor 4, not 3 (coverage is solid, not partial) and not 5 (no synonyms/extensions).

Distinctiveness Conflict Risk

The description explicitly names the alternatives it competes with ("instead of working inline or using `Explore`") and scopes each agent to a distinct task, giving a clear niche with minimal conflict risk — anchor 5, not 4, since no meaningful overlap with other skills remains.