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
Zero is the strongest overall pick here because it has a 100/100 readiness score and fits Workflow automation.
Strongest overall
Zero
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Zero
Best first install candidate based on install readiness and adoption.
Freshest repo
React Calendar
Most recent maintenance signal among this shortlist.
| Signal | Zero Calendar Zero Calendar is an open-source AI-native calendar that manages your schedule intelligently, giving you more time for what matters. | Zero Experience email the way you want with Mail0 – the first open source email app that puts your privacy and safety first. Join the discord: https://mail0.link/discord | React Calendar Ultimate calendar for your React app. | Cal Heatmap Cal-Heatmap is a javascript charting library to create a time-series calendar heatmap |
|---|---|---|---|---|
| Quality | 73/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 72/100 Strong shortlist Shortlist this skill and compare it with close alternatives before production adoption. | 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 | 353 stars Verified outcomes are shown on each skill page | 11K 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 |
| Freshness | Apr 26, 2026 | May 26, 2026 | Jul 27, 2026 | Jul 20, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | TypeScript, Calendar, Claude Code | TypeScript, Email, Claude Code | TypeScript, Calendar, Claude Code | TypeScript, Calendar, 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 | Workflow automation workflows · Claude Code teams · builders willing to evaluate younger projects | 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 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 x1xhlol/zero-calendar | $ npx skills add Mail-0/Zero | $ npx skills add wojtekmaj/react-calendar | $ npx skills add wa0x6e/cal-heatmap |