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.

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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

Cal Heatmap

Most recent maintenance signal among this shortlist.

SignalMoment Hijri

A Hijri calendar (Based on Umm al-Qura calculations) plugin for moment.js

Cal Heatmap

Cal-Heatmap is a javascript charting library to create a time-series calendar heatmap

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

Quality
71/100
Strong
100/100
Excellent
100/100
Excellent
100/100
Excellent
Decision verdict
70/100
Prototype first

Prototype with this skill first; keep a fallback candidate ready.

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.

Adoption229 stars
Verified outcomes are shown on each skill page
3.1K stars
Verified outcomes are shown on each skill page
18K stars
Verified outcomes are shown on each skill page
11K stars
Verified outcomes are shown on each skill page
FreshnessMar 25, 2026Jul 20, 2026Jun 12, 2026Jun 9, 2026
Use-case fit
Workflow fit
Platform hintsJavaScript, Calendar, Claude CodeTypeScript, Calendar, Claude CodeJavaScript, 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
OpenAgentSkill engagement0 views
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Install
$ npx skills add xsoh/moment-hijri
$ npx skills add wa0x6e/cal-heatmap
$ npx skills add mjmlio/mjml
$ npx skills add maillab/cloud-mail