Evaluate Skill Change
Measure a candidate skill against its baseline on repeatable routing and behavior cases before deciding on adoption.
When to use
Section titled “When to use”Measure whether a candidate skill improves routing and behavior over its baseline before adoption. Use only when explicitly requested and never install the candidate automatically.
Link this skill
Section titled “Link this skill”arcantry skills link evaluate-skill-change --scope userThe standard destination is ~/.agents/skills. Codex reads this universal Agent Skills location directly.
Claude compatibility
Section titled “Claude compatibility”arcantry skills link evaluate-skill-change --scope user --compat claudeThis keeps the universal link and adds a Claude alias to the same canonical package.
Examples
Section titled “Examples”Gate a proposed skill rewrite
Section titled “Gate a proposed skill rewrite”Prompt
Use the evaluate-skill-change skill with this baseline, candidate, and case file. Tell me whether the candidate should be adopted.
Expected outcome
An accept, reject, or needs-review decision based on identical cases, held-out coverage, validation, and regressions.
Check a trigger change
Section titled “Check a trigger change”Prompt
Use the evaluate-skill-change skill to compare these skill descriptions for routing precision without installing either candidate.
Expected outcome
Comparable routing and behavior evidence with the live skill left untouched and no automatic adoption.