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
Novu is the strongest overall pick here because it has a 100/100 readiness score and fits Workflow automation.
Strongest overall
Novu
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Novu
Best first install candidate based on install readiness and adoption.
Freshest repo
Novu
Most recent maintenance signal among this shortlist.
| Signal | Upyo Upyo is a simple and cross-runtime library for sending email messages using SMTP and various email providers. It works on Node.js, Deno, Bun, and edge functions. | Sendgrid Nodejs The Official Twilio SendGrid Led, Community Driven Node.js API Library | Cloud Mail A Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail | Novu The open-source communication infrastructure for agents and products |
|---|---|---|---|---|
| Quality | 81/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 92/100 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 | 521 stars 0 installs | 3.1K stars 0 installs | 11K stars 0 installs | 39K stars 0 installs |
| Freshness | May 18, 2026 | May 31, 2026 | Jun 9, 2026 | Jun 16, 2026 |
| Use-case fit | ||||
| Stack fit | ||||
| Platform hints | TypeScript, Email, Claude Code | JavaScript, Email, Claude Code | JavaScript, Email, Claude Code | TypeScript, Email, 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 · 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 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 dahlia/upyo | $ npx skills add sendgrid/sendgrid-nodejs | $ npx skills add maillab/cloud-mail | $ npx skills add novuhq/novu |