Skill comparison
Compare agent skills before installing.
Comparing 4 skills
Use this as a shortlist, then open the skill detail page before adopting.
Decision summary
Mjml is the strongest overall pick here because it has a 100/100 readiness score and fits Workflow automation.
Strongest overall
Mjml
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Mjml
Best first install candidate based on install readiness and adoption.
Freshest repo
React Calendar
Most recent maintenance signal among this shortlist.
| Signal | React Dates An easily internationalizable, mobile-friendly datepicker library for the web | React Calendar Ultimate calendar for your React app. | Cal Heatmap Cal-Heatmap is a javascript charting library to create a time-series calendar heatmap | Mjml MJML: the only framework that makes responsive-email easy |
|---|---|---|---|---|
| Quality | 83/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 85/100 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 | 12K stars Verified outcomes are shown on each skill page | 3.8K stars Verified outcomes are shown on each skill page | 3.1K stars Verified outcomes are shown on each skill page | 18K stars Verified outcomes are shown on each skill page |
| Freshness | Apr 9, 2024 | Jul 27, 2026 | Jul 20, 2026 | Jun 12, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | JavaScript, Calendar, Claude Code | TypeScript, Calendar, Claude Code | TypeScript, Calendar, Claude Code | JavaScript, Email, Claude Code |
| Warnings | Repository looks stale · No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet |
| Best for | Workflow automation workflows · Claude Code teams · teams that value GitHub adoption signals | Workflow automation workflows · Claude Code teams · teams that value GitHub adoption signals | Workflow automation workflows · Claude Code teams · teams that value GitHub adoption signals | Workflow automation workflows · Claude Code teams · teams that value GitHub adoption signals |
| Not ideal for | teams that require actively maintained dependencies · production agents without a repository 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 react-dates/react-dates | $ npx skills add wojtekmaj/react-calendar | $ npx skills add wa0x6e/cal-heatmap | $ npx skills add mjmlio/mjml |