The body is mostly lean with short bullets and snippets and avoids explaining basic concepts Claude already knows, but the "Red Flags" list and "Common Rationalizations" table substantially restate the same messages, which could be tightened; this matches the score-2 anchor of mostly efficient with some unnecessary content.

It gives concrete commands (grep anti-pattern scans, router.sh complete/status) but mixes in templated pseudo-syntax ("Read: .tmp/tasks/{feature}/subtask_{seq}.json" with {feature}/{seq} placeholders) that is not copy-paste ready, matching the score-2 anchor of some concrete guidance with incomplete/templated details.

The 8-step sequence is clearly ordered with an explicit mandatory validation checkpoint in Step 6 (type/import checks, anti-pattern scan, acceptance-criteria verification) and a real fix-and-retry feedback loop ("Fix unmet criteria before proceeding", "DO NOT mark complete"), matching the score-3 anchor of a clear sequence with validation steps and feedback loops.

No bundle files exist and the content is self-contained with well-organized sections (Overview, Process, Error Handling, Red Flags, Rationalizations, Remember, Related) and no nested references, meeting the rubric's allowance that single-purpose skills with no external references can score 3 with well-organized sections.

Names concrete inputs ("subtask JSON file", "acceptance criteria", "deliverables") but describes a readiness condition rather than listing multiple concrete actions, so it stops at the score-2 anchor of naming domain and some actions without being comprehensive.

The "when" is explicit via the "Use when a subtask is ready to implement..." clause, but the "what" is only implied through that trigger rather than stated as a capability, falling short of the score-3 anchor that states both clearly; it is above score-1 because an explicit trigger is present.

Relevant keywords exist ("subtask", "implement", "acceptance criteria", "deliverables") but they are pipeline-internal jargon tied to a task-management system rather than natural user phrasing, matching the score-2 anchor of some relevant keywords missing common variations.

The requirement of a pre-existing subtask JSON file with acceptance criteria and deliverables carves a specific niche tied to a task-management pipeline, making it unlikely to trigger for unrelated skills and matching the score-3 anchor of a clear niche with distinct triggers.