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.
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
Meru
Most recent maintenance signal among this shortlist.
| Signal | MailTrackerBlocker Email tracker, read receipt and spy pixel blocker plugin for macOS Mail (10.11-13.x) | Meru :postbox: Gmail desktop app for macOS, Windows & Linux (formerly Gmail Desktop) | Waveboxapp Wavebox, the revolutionary and feature-rich Chromium browser that's built for productive working across Google Workspaces, Microsoft Teams, ClickUp, Monday, Atlassian, Asana, AirTable, Slack, and every other web app you use to get work done. | PHPMailer The classic email sending library for PHP |
|---|---|---|---|---|
| Quality | 100/100 Excellent | 100/100 Excellent | 98/100 Excellent | 100/100 Excellent |
| Decision verdict | 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. | 100/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. |
| Adoption | 1.1K stars 0 installs | 1.0K stars 0 installs | 1.4K stars 0 installs | 22K stars 0 installs |
| Freshness | May 24, 2026 | Jun 15, 2026 | Jun 15, 2026 | Jun 6, 2026 |
| Use-case fit | ||||
| Stack fit | ||||
| Platform hints | Objective-C, Email, Claude Code | TypeScript, Email, Claude Code | JavaScript, Email, Claude Code, Browser agents | 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 · teams that value GitHub adoption signals | Workflow automation workflows · Claude Code teams · teams that value GitHub adoption signals | Browser 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 apparition47/MailTrackerBlocker | $ npx skills add zoidsh/meru | $ npx skills add wavebox/waveboxapp | $ npx skills add PHPMailer/PHPMailer |