Conciseness

The body avoids explaining concepts Claude already knows, but the 'When to Use' section repeats the frontmatter description, the eight-row 'Common Rationalizations' table is largely persuasive padding, and Phase 0 prose ('exists for the exception, not the rule, and it puts no hierarchy on single-capability features') could be tightened. This fits anchor 3: mostly efficient but with unnecessary material that could be trimmed.

Actionability

Copy-paste-ready markdown templates for the spec, task list, and capability map, plus concrete worked examples (the ASSUMPTIONS block, the 'Make the dashboard faster' reframe, full build/test/lint commands). Per the rubric's scoring notes, an instruction-only skill is not penalized for lacking code when guidance is this concrete; examples cover the common cases, matching anchor 5.

Workflow Clarity

A gated four-phase workflow (plus Phase 0 scope check) with an ASCII diagram, the explicit rule 'Do not advance to the next phase until the current one is validated', human-review gates at every phase, and a final verification checklist. The assumptions prompt ('Correct me now or I'll proceed with these') provides an explicit feedback loop, matching anchor 5.

Progressive Disclosure

Well-sectioned single-file skill with clearly signaled cross-skill references and explicit precedence rules ('planning-and-task-breakdown takes precedence'). Minor gaps: the large inline templates could be split into reference files, and external skill pointers are formatted inconsistently (some as 'skills/.../SKILL.md' paths, some as bare names), fitting anchor 4 rather than 5.

Specificity

The description names the domain ('Creates specs before coding') with one or two concrete actions (creating specs, decomposing into a capability map of modules), but the 'what' is thin relative to the extensive trigger coverage. It does not list several specific actions as anchor 4 requires.

Completeness

Explicitly answers both 'what' ('Creates specs before coding') and 'when' with three concrete 'Use when...' clauses covering project starts, PRD drafting, and multi-capability decomposition. The 'when' is fully explicit with concrete trigger phrases, matching anchor 5 rather than anchor 4.

Trigger Term Quality

Strong natural trigger phrases users would actually say: 'starting a new project', 'drafting a PRD', 'requirements document', 'requirements are unclear, ambiguous, or only exist as a vague idea'. A few common synonyms (e.g., 'design doc', 'acceptance criteria', 'tech spec') are missing, keeping it below anchor 5.

Distinctiveness Conflict Risk

Spec creation is a clear niche, and the guard 'no specification exists yet' plus PRD/requirements triggers minimize overlap with planning or implementation skills. Distinct triggers give minimal conflict risk, matching anchor 5.