Skill comparison
Compare agent skills before installing.
Put high-signal skills side by side and inspect quality, adoption, freshness, install readiness, use-case fit, and warnings in one place.
Comparing 4 skills
Use this as a shortlist, then open the skill detail page before adopting.
Decision summary
Sonarqube is the strongest overall pick here because it has a 100/100 readiness score and fits Coding agents.
Strongest overall
Sonarqube
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Sonarqube
Best first install candidate based on install readiness and adoption.
Freshest repo
Checkstyle
Most recent maintenance signal among this shortlist.
| Signal | RefactorFirst Identifies and prioritizes God Classes Highly Coupled classes, and Class Cycles in Java codebases you should refactor first. | Checkstyle Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program. | Sonarqube Continuous Inspection | Recaf The modern Java bytecode editor |
|---|---|---|---|---|
| Quality | 84/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 95/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. | 100/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. | 100/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. | 100/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. |
| Adoption | 525 stars 0 installs | 8.9K stars 0 installs | 11K stars 0 installs | 7.2K stars 0 installs |
| Freshness | Jun 14, 2026 | Jun 16, 2026 | Jun 12, 2026 | Jun 15, 2026 |
| Use-case fit | ||||
| Stack fit | ||||
| Platform hints | Java, Static Analysis, Claude Code | Java, Static Analysis, Claude Code | Java, Static Analysis, Claude Code | Java, Static Analysis, Claude Code |
| Warnings | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet |
| Best for | Coding agents workflows · Claude Code teams · teams that value GitHub adoption signals | Coding agents workflows · Claude Code teams · teams that value GitHub adoption signals | Coding agents workflows · Claude Code teams · teams that value GitHub adoption signals | Coding agents workflows · Claude Code teams · teams that value GitHub adoption signals |
| Not ideal for | teams that need a vendor-supported SLA · high-compliance environments without internal security review | teams that need a vendor-supported SLA · high-compliance environments without internal security review | teams that need a vendor-supported SLA · high-compliance environments without internal security review | teams that need a vendor-supported SLA · high-compliance environments without internal security review |
| OpenAgentSkill engagement | 0 views 0 install copies | 0 views 0 install copies | 0 views 0 install copies | 0 views 0 install copies |
| Install | $ npx skills add refactorfirst/RefactorFirst | $ npx skills add checkstyle/checkstyle | $ npx skills add SonarSource/sonarqube | $ npx skills add Col-E/Recaf |