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
PHPMailer is the strongest overall pick here because it has a 100/100 readiness score and fits Workflow automation.
Strongest overall
PHPMailer
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
PHPMailer
Best first install candidate based on install readiness and adoption.
Freshest repo
Cal Heatmap
Most recent maintenance signal among this shortlist.
| Signal | Egroupware Web based groupware server written in PHP, forum at https://help.egroupware.org/ | Leantime Leantime is a goals focused project management system for non-project managers. Building with ADHD, Autism, and dyslexia in mind. | Cal Heatmap Cal-Heatmap is a javascript charting library to create a time-series calendar heatmap | PHPMailer The classic email sending library for PHP |
|---|---|---|---|---|
| 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. |
| Adoption | 292 stars Verified outcomes are shown on each skill page | 10K stars Verified outcomes are shown on each skill page | 3.1K stars Verified outcomes are shown on each skill page | 22K stars Verified outcomes are shown on each skill page |
| Freshness | Jun 20, 2026 | Jun 14, 2026 | Jul 20, 2026 | Jun 6, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | PHP, Calendar, Claude Code | PHP, Calendar, Claude Code | TypeScript, Calendar, Claude Code | PHP, 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 EGroupware/egroupware | $ npx skills add Leantime/leantime | $ npx skills add wa0x6e/cal-heatmap | $ npx skills add PHPMailer/PHPMailer |