Conciseness

'This skill implements a proven product management framework. The approach combines best practices from industry leaders' is pure filler, and the 'What It Is' section re-explains the widely known Sean Ellis framework. Mostly efficient overall, so anchor 3 fits better than 2 — the 40% benchmark and when-to-use lists earn their place, but the filler sections and duplicated resource lists could be trimmed.

Actionability

The only concrete artifacts are the key question ('How would you feel if you could no longer use this product?'), the three response options, and the 40% threshold; there are no steps for sampling users, running the survey, analyzing responses, or generating the roadmap the description promises. Matches anchor 2 (high-level hints missing the specific steps) rather than 3, since no executable procedure exists at all.

Workflow Clarity

A rough implicit flow (ask the question → count 'very disappointed' → compare to 40% → build a roadmap) is reconstructable from the concept text, but it is never presented as a sequence and the analysis/roadmap steps are absent. Anchor 2 fits; anchor 1 would require even this implicit flow to be missing.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are absent) and none are needed; sections are clearly headed and the body is short. Minor organization gaps — the pre-title 'Domain Context'/'Input Requirements' sections and the redundant 'Resources' vs 'Further Reading' lists — keep it at anchor 4 rather than 5.

Specificity

Concrete actions include 'quantify product-market fit', 'measures how disappointed users would be', and 'turns that data into a roadmap' — several specific actions with minor gaps (no mention of segmenting users or tracking PMF over time). Fits anchor 4 better than 3 (more than 1-2 actions) and short of 5's comprehensive coverage.

Completeness

Explicitly answers 'when' ('Use when asked to...') with concrete trigger phrases and 'what' ('Helps quantify product-market fit and systematically improve it... turns that data into a roadmap'). Clearly matches anchor 5; anchor 4 would require the 'when' clause to be less explicit than it is.

Trigger Term Quality

'PMF survey', 'measure product-market fit', '40% rule', 'Sean Ellis test', 'Rahul Vohra method', and 'how disappointed would you be' provide comprehensive natural-term coverage with multiple synonyms a user would actually say. Matches anchor 5; no common variation is missing.

Distinctiveness Conflict Risk

Triggers like 'Sean Ellis test' and 'Rahul Vohra method' occupy a clear niche with minimal overlap risk against generic survey or roadmap skills. Matches anchor 5; anchor 4's 'minor overlap risk with closely related skills' understates how distinctive these named triggers are.