The content is lean and efficient. The 'Why this exists' section borders on explanatory but earns its place by quantifying the token savings (2k vs 700 tokens), which is genuinely useful decision-making context. The table format for when-to-use is maximally dense. No padding or concept explanations Claude would already know.

Provides concrete output contracts with exact formats (greppable patterns like `path:\d+`), specific terminal tokens for builder errors (`too-big.`, `needs-confirm.`), and clear chaining patterns with numbered steps. The decision table gives unambiguous routing for each task type. While there's no executable code, this is an instruction/decision skill where the guidance is fully actionable.

The 'Chaining patterns' section provides three clearly sequenced workflows (locate→fix→verify, parallel scout, single-shot edit). The builder's output contract includes built-in validation ('verified: re-read OK | mismatch @ path:line') and explicit error states. The 'What NOT to do' section acts as guardrails against common missteps, and the locate→fix→verify chain includes a review step as validation.

The content is well-organized with clear sections and a logical flow from decision table → rationale → contracts → patterns → anti-patterns. However, there are no bundle files and no references to external files for the individual subagent configurations or detailed examples. For a skill of this complexity (three subagent types with contracts), splitting subagent details into referenced files could improve navigation.

Lists multiple specific concrete actions: delegating to named subagents (cavecrew-investigator for locating code, cavecrew-builder for 1-2 file edits, cavecrew-reviewer for diff review), describes the compression benefit (~60% smaller), and explains the decision logic of when to spawn vs. work inline.

Clearly answers both 'what' (decision guide for delegating to caveman-style subagents with specific roles) and 'when' (explicit trigger phrases listed, plus contextual guidance about when to spawn vs. work inline or use vanilla Explore).

Includes natural trigger terms users would say: 'delegate to subagent', 'use cavecrew', 'spawn investigator/builder/reviewer', 'save context', 'compressed agent output'. These cover both the specific tool names and the conceptual intent (saving context).

Highly distinctive with unique terminology ('cavecrew', 'caveman-compressed', specific subagent names like investigator/builder/reviewer). Very unlikely to conflict with other skills due to the specialized vocabulary and clear niche of subagent delegation with context compression.