Star200+

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.

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Decision summary

Shellcheck is the strongest overall pick here because it has a 100/100 readiness score and fits Coding agents.

Strongest overall

Shellcheck

Use this as a leading candidate, then validate the README and install path in your own agent stack.

Fastest prototype

Shellcheck

Best first install candidate based on install readiness and adoption.

Freshest repo

Phpstan

Most recent maintenance signal among this shortlist.

SignalBackwardCompatibilityCheck

:ab: Tool to compare two revisions of a class API to check for BC breaks

Phpstan

PHP Static Analysis Tool - discover bugs in your code without running it!

PHP CS Fixer

A tool to automatically fix PHP Coding Standards issues

Shellcheck

ShellCheck, a static analysis tool for shell scripts

Quality
79/100
Strong
100/100
Excellent
100/100
Excellent
100/100
Excellent
Decision verdict
90/100
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.

Adoption597 stars
Verified outcomes are shown on each skill page
14K stars
Verified outcomes are shown on each skill page
14K stars
Verified outcomes are shown on each skill page
40K stars
Verified outcomes are shown on each skill page
FreshnessJun 18, 2026Jun 24, 2026Jun 18, 2026Jun 11, 2026
Use-case fit
Coding agentsResearch agentsSports analytics
Coding agentsTesting and QARAG and knowledge
Coding agentsGitHub automationRAG and knowledge
Coding agentsRAG and knowledgeWorkflow automation
Workflow fit
Coding review agentResearch report agent
Coding review agentContent growth agent
Coding review agentContent growth agent
Coding review agentContent growth agent
Platform hintsPHP, Static Analysis, Claude CodePHP, Static Analysis, Claude CodePHP, Static Analysis, Claude CodeHaskell, Static Analysis, Claude Code
WarningsNo OpenAgentSkill engagement data yetNo OpenAgentSkill engagement data yetNo OpenAgentSkill engagement data yetNo OpenAgentSkill engagement data yet
Best forCoding agents workflows · Claude Code teams · teams that value GitHub adoption signalsCoding agents workflows · Claude Code teams · teams that value GitHub adoption signalsCoding agents workflows · Claude Code teams · teams that value GitHub adoption signalsCoding agents workflows · Claude Code teams · teams that value GitHub adoption signals
Not ideal forteams that need a vendor-supported SLA · high-compliance environments without internal security reviewteams that need a vendor-supported SLA · high-compliance environments without internal security reviewteams that need a vendor-supported SLA · high-compliance environments without internal security reviewteams that need a vendor-supported SLA · high-compliance environments without internal security review
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Install
$ npx skills add Roave/BackwardCompatibilityCheck
$ npx skills add phpstan/phpstan
$ npx skills add PHP-CS-Fixer/PHP-CS-Fixer
$ npx skills add koalaman/shellcheck