Evaluate Skill Change
Measure a candidate skill against its baseline on repeatable routing and behavior cases before deciding on adoption.
Use when: 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.
Install only this skill
Section titled “Install only this skill”arcantry skills link evaluate-skill-change --scope userThis links only evaluate-skill-change to the standard user location, ~/.agents/skills. Use --scope repo for one repository, or add --compat claude when that optional alias is needed.
History
Section titled “History”- 2026-08-18 - Coordinate project knowledge and agent workflows with Arcantry: Arcantry provides local-first project configuration, safe repository adoption, a portable catalog of focused agent skills, and one documented workflow for maintaining project intent, release meaning, task intake, verification, and audience-safe content.
- 2026-08-17 - Unified Arcantry capabilities: Arcantry now combines its OpenSpec lifecycle with reusable skills, a complete Codex plugin, a versioned catalog, and one CLI for safe repository adoption and skill management.
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.