The body is mostly procedural and assumes Claude's competence — it does not explain what user stories, GitHub, or MCP are — but the orchestrated/direct-subordinate/inline branching is restated across steps 1, 6, and 7, and 'Common failures and resolution' partly duplicates step 9 and 10 content. It could be tightened, so it is 'mostly efficient but could be tighter' rather than fully lean.

Guidance is concrete and executable for an instruction-only skill: exact draft paths ('.tmp/TASK-<nn>-<slug>.md'), a named template, tool format ('mcp_github::sub_issue_write'), five enumerated ambiguity signals, and explicit delegated inputs (owner, repo, parent story, ordered drafts, labels/assignee, dependency ordering). Absence of code is not penalized because the guidance is actionable.

Ten steps are explicitly ordered with validation checkpoints: a devil's-advocate review with a publish gate (step 6), explicit confirmation before publish plus post-flight verification (step 9), and idempotent repair with post-flight checks (step 10). Feedback loops for the batch/mutation operations are present, matching the level-3 anchor.

The body is an overview/procedure that points to one-level-deep, clearly signaled bundle files: an '## Assets' section links assets/follow-up-questions.md and assets/task-plan-template.md, both of which exist in the bundle. Templates and question banks are appropriately split out rather than inlined; navigation is easy.

Phrases like 'Plan and break down user-story issues into ordered, traceable task issue drafts with explicit publish gates' name concrete actions (plan, break down) and a specific, characterized output rather than vague language. It is not merely 'Names domain and some actions' (level 2) because the output is concretely specified, though it falls short of listing many distinct actions.

It clearly answers 'what' (plan and break down user-story issues into task drafts) but provides no explicit 'Use when...' trigger clause; the 'when' is only implied. Per the guidelines, a missing 'Use when...' clause caps completeness at 2.

It includes some natural terms a user might say ('plan', 'break down', 'user-story', 'task issue'), but also jargon like 'publish gates' that users would not naturally say, and it misses common variations ('decompose story', 'create task drafts'). This is 'some relevant keywords but missing common variations', not the broad coverage of level 3.

The niche is narrow and specific — planning user-story issues into ordered, traceable task drafts with publish gates — making it unlikely to trigger for unrelated skills. It is distinguishable from generic authoring skills, though it sits adjacent to sibling fusion-issue skills.