Star0

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.

Add more skills

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

Mailchecker

Most recent maintenance signal among this shortlist.

SignalRelay

✉️ Open-Source Email API for Developers. Cloud & Self-hosted Alternative to SES, Mailgun, SendGrid.

PHPMailer

The classic email sending library for PHP

Anonaddy

Anonymous email forwarding

Mailchecker

:mailbox: Cross-language temporary (disposable/throwaway) email detection library. Covers 55 734+ fake email providers.

Quality
85/100
Excellent
100/100
Excellent
100/100
Excellent
100/100
Excellent
Decision verdict
96/100
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.

Adoption635 stars
0 installs
22K stars
0 installs
4.7K stars
0 installs
1.9K stars
0 installs
FreshnessJun 10, 2026Jun 6, 2026May 28, 2026Jun 16, 2026
Use-case fit
Workflow automationCoding agentsRAG and knowledge
Workflow automationCoding agentsRAG and knowledge
Workflow automationCoding agentsRAG and knowledge
Workflow automationCoding agentsRAG and knowledge
Stack fit
Content growth agentCoding review agent
Content growth agentCoding review agent
Content growth agentCoding review agent
Content growth agentCoding review agent
Platform hintsPHP, Email, Claude CodePHP, Email, Claude CodePHP, Email, Claude CodePHP, 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 · 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 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 hyvor/relay
$ npx skills add PHPMailer/PHPMailer
$ npx skills add anonaddy/anonaddy
$ npx skills add FGRibreau/mailchecker