Star200+

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

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Decision summary

React Email is the strongest overall pick here because it has a 100/100 readiness score and fits Workflow automation.

Strongest overall

React Email

Use this as a leading candidate, then validate the README and install path in your own agent stack.

Fastest prototype

React Email

Best first install candidate based on install readiness and adoption.

Freshest repo

EmailValidation

Most recent maintenance signal among this shortlist.

SignalEmailValidation

A simple (but correct) .NET class for validating email addresses

React Email

💌 Build and send emails using React

Mailinabox

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

Mjml

MJML: the only framework that makes responsive-email easy

Quality
76/100
Strong
100/100
Excellent
100/100
Excellent
100/100
Excellent
Decision verdict
75/100
Strong shortlist

Shortlist this skill and compare it with close alternatives before production adoption.

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.

Adoption296 stars
Verified outcomes are shown on each skill page
19K 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
FreshnessJun 13, 2026Jun 12, 2026May 24, 2026Jun 12, 2026
Use-case fit
Workflow automationCoding agentsRAG and knowledge
Workflow automationCoding agentsRAG and knowledge
Workflow automationCoding agentsRAG and knowledge
Workflow automationCoding agentsRAG and knowledge
Workflow fit
Content growth agentCoding review agent
Content growth agentCoding review agent
Content growth agentCoding review agent
Content growth agentCoding review agent
Platform hintsC#, Email, Claude CodeTypeScript, Email, Claude CodePython, Email, Claude CodeJavaScript, Email, Claude Code
WarningsNo 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 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 reviewteams that need a vendor-supported SLA · high-compliance environments without internal security review
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Install
$ npx skills add jstedfast/EmailValidation
$ npx skills add resend/react-email
$ npx skills add mail-in-a-box/mailinabox
$ npx skills add mjmlio/mjml