The body is lean — concise Contract bullets, terse numbered phases, a minimal embedded template, and brief Anti-Patterns — with no padding or explanation of concepts Claude already knows. Every section earns its place, matching the 3-anchor 'lean and efficient' profile. Not a 2 because there is no unnecessary explanation to trim.

Provides concrete, executable guidance: specific file paths ('skills/manifest.json', 'skills/RESOLVER.md'), a runnable verification command ('bun test test/skills-conformance.test.ts'), and a complete copy-paste SKILL.md template with explicit section scaffolding. Not a 2 because the template and commands are directly usable rather than pseudocode or abstract direction.

Six phases are clearly sequenced and Phase 6 provides an explicit verification step ('Run bun test ... to confirm the new skill passes'), but there is no feedback loop describing what to do when the conformance test fails (fix and re-run). For a mutating skill that creates and updates files, the missing error-recovery loop caps clarity at 2. Not a 1 because the sequence and a validation step are present; not a 3 because the validate->fix->retry loop is absent.

This is a short single-purpose skill with no bundle files (references/, scripts/, assets/ are absent) and no need for external references, yet it is well-organized into clear sections (Contract, Phases, Output Format, Anti-Patterns). Per the rubric's simple-skills note, this satisfies the 3 anchor. Not a 2 because organization is clean and nothing that should be offloaded is inline.

Lists multiple concrete actions — 'Generates SKILL.md with frontmatter, Contract, Phases, Output Format, and Anti-Patterns', 'Checks MECE against existing skills', 'Updates manifest and resolver' — matching the 3-anchor pattern of enumerating specific actions rather than vague phrasing. Not a 2 because it goes beyond naming a single domain action into a comprehensive action set.

The 'what' is clearly answered (skill creation and the artifacts it produces), but there is no 'Use when...' clause or explicit when-to-use guidance woven into the description — the 'when' lives only in the separate triggers field. Per the rubric guideline, a missing 'Use when...' clause caps completeness at 2; not a 1 because the what is strong and triggers provide some when guidance.

Triggers 'create a skill', 'new skill', 'improve this skill' are natural user phrases, but common variations like 'make a skill', 'build a skill', or 'add a skill' are missing. Not a 3 due to incomplete coverage of natural variations; not a 1 because the terms present are genuinely what a user would say.

Targets a clear, narrow niche — authoring GBrain skills ('Create new skills following the GBrain conformance standard') with distinct creation-oriented triggers — making it unlikely to fire for unrelated skills. Not a 2 because the meta-skill scope is unambiguous rather than overlapping with general document/code skills.