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 | Email Dashboard 📪 An interactive emailing management service with scheduling, templating, tracking and A/B testing. | BillionMail BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr | Nodemailer ✉️ Send e-mails with Node.JS – easy as cake! | Novu The open-source communication infrastructure for agents and products |
|---|---|---|---|---|
| Quality | 51/100 Needs review | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 41/100 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 | 275 stars Verified outcomes are shown on each skill page | 15K stars Verified outcomes are shown on each skill page | 18K stars Verified outcomes are shown on each skill page | 39K stars Verified outcomes are shown on each skill page |
| Freshness | Jan 19, 2023 | Jun 11, 2026 | Jun 15, 2026 | Jun 16, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | Ruby, Email, Claude Code | Go, Email, Claude Code | JavaScript, Email, Claude Code | TypeScript, 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 Email-Dashboard/Email-Dashboard | $ npx skills add Billionmail/BillionMail | $ npx skills add nodemailer/nodemailer | $ npx skills add novuhq/novu |