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
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
Tutanota
Most recent maintenance signal among this shortlist.
| Signal | React Heat Map A lightweight calendar heatmap react component built on SVG, customizable version of GitHub's contribution graph. | Leantime Leantime is a goals focused project management system for non-project managers. Building with ADHD, Autism, and dyslexia in mind. | Tutanota Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices. | Mjml MJML: the only framework that makes responsive-email easy |
|---|---|---|---|---|
| Quality | 79/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 78/100 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. |
| Adoption | 271 stars 0 installs | 10K stars 0 installs | 7.7K stars 0 installs | 18K stars 0 installs |
| Freshness | May 28, 2026 | Jun 14, 2026 | Jun 16, 2026 | Jun 12, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | TypeScript, Calendar, Claude Code | PHP, Calendar, Claude Code | TypeScript, Email, Claude Code | JavaScript, 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 · 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 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 uiwjs/react-heat-map | $ npx skills add Leantime/leantime | $ npx skills add tutao/tutanota | $ npx skills add mjmlio/mjml |