Conciseness

The body is mostly efficient procedural guidance, but it restates rules across sections (Operating Mode's 'No creative implementation...' vs. Purpose's prohibitions; Key Principles re-lists 'One question at a time', 'Assumptions must be explicit', 'YAGNI ruthlessly' already covered in the process), so it could be tightened, matching 'mostly efficient but includes some unnecessary explanation'.

Actionability

As an instruction-only facilitation skill it gives concrete, executable directives ('Ask one question per message', 'Prefer multiple-choice questions', 'Propose 2–3 viable approaches', 'Break it into sections of 200–300 words max', 'Maintain a running Decision Log'), with only minor gaps, matching 'mostly executable guidance; concrete guidance with minor gaps'.

Workflow Clarity

The 7-step process is clearly sequenced with explicit hard-gate validation checkpoints (Understanding Lock requiring explicit confirmation, Exit Criteria hard-stop conditions) and a feedback loop ('If any criterion unmet: Continue refinement'), matching 'clear sequence with explicit validation steps; feedback loops for error recovery; checklists'.

Progressive Disclosure

No bundle files exist and the content is well-organized into clearly headed sections with no large reference material that should be split out; it is good single-file structure, though the ~230-line length exceeds the under-50-line simple-skill exception that would permit a 5, matching 'good structure; most content appropriately placed; minor organization gaps'.

Specificity

It names the domain (creative/constructive design work) and a couple of actions ('Transforms vague ideas into validated designs', 'disciplined reasoning and collaboration'), but the actions are abstract rather than concrete operations, matching the 'names domain and 1-2 concrete actions but not comprehensive' anchor.

Completeness

Both 'what' ('Transforms vague ideas into validated designs through disciplined reasoning and collaboration') and 'when' ('Use before creative or constructive work (features, architecture, behavior)') are present; the when clause is explicit but could be more specific about trigger phrases, matching the 'has both what and when; when could be more explicit' anchor.

Trigger Term Quality

'creative or constructive work (features, architecture, behavior)' provides relevant natural triggers, but common variations users actually say ('brainstorm', 'design', 'plan', 'whiteboard') are missing, fitting 'some relevant keywords but missing common variations or synonyms'.

Distinctiveness Conflict Risk

The pre-implementation design-facilitation niche is somewhat distinct, but the broad trigger 'creative or constructive work (features, architecture, behavior)' could overlap with general planning or design skills, fitting 'somewhat specific but could still overlap with similar skills'.