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Skill comparison

Compare agent skills before installing.

Put high-signal skills side by side and inspect quality, adoption, freshness, install readiness, use-case fit, and warnings in one place.

Comparing 4 skills

Use this as a shortlist, then open the skill detail page before adopting.

Add more skills

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

Mailspring

Most recent maintenance signal among this shortlist.

SignalOpenpaas Esn

Open PaaS Enterprise Social Network

Cloud Mail

A Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail

Mailspring

:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

Mjml

MJML: the only framework that makes responsive-email easy

Quality
48/100
Needs review
100/100
Excellent
100/100
Excellent
100/100
Excellent
Decision verdict
38/100
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.

Adoption485 stars
0 installs
11K stars
0 installs
18K stars
0 installs
18K stars
0 installs
FreshnessMay 2, 2025Jun 9, 2026Jun 15, 2026Jun 12, 2026
Use-case fit
Workflow automationGitHub automationCoding agents
Workflow automationCoding agentsRAG and knowledge
Workflow automationCoding agentsRAG and knowledge
Workflow automationCoding agentsRAG and knowledge
Stack fit
Content growth agentCoding review agent
Content growth agentCoding review agent
Content growth agentCoding review agent
Content growth agentCoding review agent
Platform hintsJavaScript, Calendar, Claude CodeJavaScript, Email, Claude CodeJavaScript, Email, Claude CodeJavaScript, Email, Claude Code
WarningsRepository looks stale · No OpenAgentSkill engagement data yetNo OpenAgentSkill engagement data yetNo OpenAgentSkill engagement data yetNo OpenAgentSkill engagement data yet
Best forWorkflow automation workflows · Claude Code teams · builders willing to evaluate younger projectsWorkflow automation workflows · Claude Code teams · teams that value GitHub adoption signalsWorkflow automation workflows · Claude Code teams · teams that value GitHub adoption signalsWorkflow automation workflows · Claude Code teams · teams that value GitHub adoption signals
Not ideal forteams that require actively maintained dependencies · production agents without a repository reviewteams that need a vendor-supported SLA · high-compliance environments without internal security reviewteams that need a vendor-supported SLA · high-compliance environments without internal security reviewteams that need a vendor-supported SLA · high-compliance environments without internal security review
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Install
$ npx skills add linagora/openpaas-esn
$ npx skills add maillab/cloud-mail
$ npx skills add Foundry376/Mailspring
$ npx skills add mjmlio/mjml