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

Novu is the strongest overall pick here because it has a 100/100 readiness score and fits Workflow automation.

Strongest overall

Novu

Use this as a leading candidate, then validate the README and install path in your own agent stack.

Fastest prototype

Novu

Best first install candidate based on install readiness and adoption.

Freshest repo

Novu

Most recent maintenance signal among this shortlist.

SignalThird Stats

Thunderbird add-on turning your emails into beautifully visualized email account stats.

PHPMailer

The classic email sending library for PHP

Novu

The open-source communication infrastructure for agents and products

Mailspring

:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

Quality
81/100
Strong
100/100
Excellent
100/100
Excellent
100/100
Excellent
Decision verdict
80/100
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.

Adoption258 stars
0 installs
22K stars
0 installs
39K stars
0 installs
18K stars
0 installs
FreshnessJun 14, 2026Jun 6, 2026Jun 16, 2026Jun 15, 2026
Use-case fit
Workflow automationMarketing and growthCoding agents
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 hintsVue, Email, Claude CodePHP, Email, Claude CodeTypeScript, Email, Claude CodeJavaScript, 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 · builders willing to evaluate younger projectsWorkflow 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
0 install copies
0 views
0 install copies
0 views
0 install copies
0 views
0 install copies
Install
$ npx skills add devmount/third-stats
$ npx skills add PHPMailer/PHPMailer
$ npx skills add novuhq/novu
$ npx skills add Foundry376/Mailspring