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
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
SwiftLint
Most recent maintenance signal among this shortlist.
| Signal | Elsa Emacs Lisp Static Analyzer and gradual type system. | Shellcheck ShellCheck, a static analysis tool for shell scripts | Infer A static analyzer for Java, C, C++, and Objective-C | SwiftLint A tool to enforce Swift style and conventions. |
|---|---|---|---|---|
| Quality | 68/100 Promising | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 70/100 Prototype first Prototype with this skill first; keep a fallback candidate ready. | 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 | 699 stars 0 installs | 40K stars 0 installs | 16K stars 0 installs | 20K stars 0 installs |
| Freshness | Jul 17, 2025 | Jun 11, 2026 | Jun 13, 2026 | Jun 13, 2026 |
| Use-case fit | ||||
| Stack fit | ||||
| Platform hints | Emacs Lisp, Static Analysis, Claude Code | Haskell, Static Analysis, Claude Code | OCaml, Static Analysis, Claude Code | Swift, Static Analysis, Claude Code |
| Warnings | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No major risk signals from current metadata |
| 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 | 4 views 0 install copies |
| Install | $ npx skills add emacs-elsa/Elsa | $ npx skills add koalaman/shellcheck | $ npx skills add facebook/infer | $ npx skills add realm/SwiftLint |