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
Nodemailer
Most recent maintenance signal among this shortlist.
| Signal | JsCalendar Just a simple javascript calendar | 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 | Nodemailer ✉️ Send e-mails with Node.JS – easy as cake! |
|---|---|---|---|---|
| Quality | 50/100 Needs review | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 40/100 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 | 225 stars 0 installs | 18K stars 0 installs | 11K stars 0 installs | 18K stars 0 installs |
| Freshness | Feb 19, 2024 | Jun 12, 2026 | Jun 9, 2026 | Jun 15, 2026 |
| Use-case fit | ||||
| Stack fit | ||||
| Platform hints | JavaScript, Calendar, Claude Code | JavaScript, Email, 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 GramThanos/jsCalendar | $ npx skills add mjmlio/mjml | $ npx skills add maillab/cloud-mail | $ npx skills add nodemailer/nodemailer |