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
Cal Heatmap
Most recent maintenance signal among this shortlist.
| Signal | Poetry Calendar ✨🗓✨一个美炸天的诗词周历 ， 52个周给你新的体验。 | 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 | Cloud Mail A Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail |
|---|---|---|---|---|
| Quality | 45/100 Needs review | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 35/100 Needs manual review Do a manual repository review before adding this to an agent workflow. | 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 | 268 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 | 11K stars Verified outcomes are shown on each skill page |
| Freshness | Sep 12, 2019 | Jul 20, 2026 | Jun 12, 2026 | Jun 9, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | JavaScript, Calendar, Claude Code | TypeScript, Calendar, Claude Code | JavaScript, Email, 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 · 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 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 chinese-poetry/poetry-calendar | $ npx skills add wa0x6e/cal-heatmap | $ npx skills add mjmlio/mjml | $ npx skills add maillab/cloud-mail |