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
Anonaddy
Most recent maintenance signal among this shortlist.
| Signal | Passbolt API Passbolt Community Edition (CE) API. The JSON API for the open source password manager for teams! | PHPMailer The classic email sending library for PHP | Anonaddy Anonymous email forwarding | Zero Experience email the way you want with Mail0 – the first open source email app that puts your privacy and safety first. Join the discord: https://mail0.link/discord |
|---|---|---|---|---|
| Quality | 100/100 Excellent | 100/100 Excellent | 100/100 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 | 6.0K stars Verified outcomes are shown on each skill page | 22K stars Verified outcomes are shown on each skill page | 4.8K stars Verified outcomes are shown on each skill page | 11K stars Verified outcomes are shown on each skill page |
| Freshness | Jun 11, 2026 | Jun 6, 2026 | Jul 30, 2026 | May 26, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | PHP, Productivity, Claude Code | PHP, Email, Claude Code | PHP, Email, Claude Code | TypeScript, 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 | 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 passbolt/passbolt_api | $ npx skills add PHPMailer/PHPMailer | $ npx skills add anonaddy/anonaddy | $ npx skills add Mail-0/Zero |