The body is lean and assumes Claude's competence — it lists what to define (objective, done, scope, constraints) without explaining those concepts, and every section earns its place; the minor overlap between question templates and the worked example is not enough to drop it from 'lean and efficient'.

It gives copy-paste-ready guidance: numbered questions with lettered options, an explicit reply format ('Reply with: defaults (or 1a 2a)'), a fast-path mechanism, concrete templates, and anti-patterns — fully actionable for an instruction-only skill.

A clear 4-step sequence (Decide, Ask, Pause, Confirm) with explicit gates — the 'Pause before acting' step blocks action until answers arrive, and the proceed-without-answers branch supplies a state-assumptions-then-confirm feedback loop.

No bundle files exist and the skill is self-contained with well-organized sections (Goal, Workflow, Question templates, Anti-patterns), which satisfies the 'no need for external references' allowance for a clear, well-sectioned single-purpose skill.

"Clarify requirements before implementing" names the action domain but stays abstract; it does not list multiple concrete actions like the score-3 anchor, so it sits at 'names domain and some actions, but not comprehensive'.

It states what the skill does but lacks an explicit 'Use when...' trigger; the 'when' is only implied via the negative 'Do not use automatically, only when invoked explicitly', which caps completeness at 2 per the guidelines.

The description contains no natural keywords a user would actually say when needing this skill; "clarify requirements" is internal framing rather than user speech, and the rest is invocation meta-instruction.

"Clarify requirements" is a meta-skill that overlaps with general assistant behavior and could apply broadly, though the explicit invocation restriction narrows it; it is somewhat specific but could still overlap with similar skills.