Lists multiple specific concrete actions: 'identifies underspecified areas', 'asks targeted questions with option tables', and 'updates spec.md with answers linked to affected requirements (FR-XXX, SC-XXX)'. These are detailed, actionable capabilities.

Clearly answers both what (resolve ambiguities, identify underspecified areas, ask questions, update spec.md) AND when with explicit 'Use when...' clause listing five specific trigger scenarios.

Includes natural keywords users would say: 'requirements are unclear', 'spec has gaps', 'details are missing', 'user stories need refinement', 'acceptance criteria'. These cover common variations of how users express specification ambiguity.

Clear niche focused on specification ambiguity resolution with distinct triggers like 'spec.md', 'FR-XXX, SC-XXX', 'option tables', and 'acceptance criteria'. Unlikely to conflict with general documentation or coding skills.

The skill is lean and efficient, assuming Claude's competence throughout. No unnecessary explanations of concepts Claude already knows; every section serves a clear purpose with minimal padding.

Provides fully executable commands (bash/powershell scripts), specific taxonomies for scanning, concrete output formats, and exact integration steps. The question format constraints and validation rules are copy-paste ready.

Clear 6-step sequence with explicit validation after each write and final pass. Includes feedback loops (re-run prerequisites after selection), save-after-each-integration checkpoints, and early termination handling.

Well-structured overview with clear one-level-deep references to supporting files (constitution-loading.md, conversation-guide.md, clarification-format.md, model-recommendations.md). Content appropriately split between main skill and reference documents.