Conciseness

The body is lean and assumes Claude's competence — concrete TypeScript with exact file:line anchors and no padding about what fs/TypeScript/frontmatter are. There is slight overlap between the Critical section and Step instructions, but it reinforces hard constraints rather than restating filler, keeping it at the score-3 anchor.

Actionability

Provides fully executable code (e.g., the complete writeDevcodeConfig writer, the frontmatter template with exact indentation), specific commands ('npm test -- src/writers/__tests__/<platform>.test.ts'), and copy-paste-ready registration blocks — matching the score-3 anchor.

Workflow Clarity

A clearly sequenced six-step process with explicit '**Validation**' checkpoints after nearly every step and fix-and-retry feedback loops (e.g., validation before Step 1, re-validate on failure), matching the score-3 anchor for clear sequence with explicit validation and error-recovery loops.

Progressive Disclosure

No bundle/reference files exist and the skill is a single well-organized file, but at ~260 lines with no external reference links it keeps long worked examples and Common Issues inline that could be split out; the score-2 anchor fits 'structure present but content that should be separate is inline and no clearly signaled one-level-deep references.'

Specificity

Lists multiple concrete actions — 'exports a function that accepts a config interface, creates directories (rules/, skills/, mcp configs), writes files with proper formatting and frontmatter, and returns string[] of written file paths' — matching the score-3 anchor for multiple specific concrete actions.

Completeness

Explicitly answers what ('Add a new platform writer module... generates and writes agent config files') and when ('Use when adding platform support...'), plus a 'Do NOT use' exclusion clause, satisfying the score-3 anchor.

Trigger Term Quality

Natural phrasings a user would actually say — 'adding platform support for a new agent, integrating a new code AI tool, or extending caliber to support new targets' — give good coverage of likely trigger language.

Distinctiveness Conflict Risk

Clear narrow niche (adding a writer module) reinforced by an explicit 'Do NOT use for modifying existing writers, refactoring scoring logic, or changing how writers are invoked' boundary that prevents misfiring on adjacent skills.