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

Leantime

Most recent maintenance signal among this shortlist.

SignalCastor

🦫 A lightweight and modern task runner for Automation, CI/CD & DevOps.

PHPMailer

The classic email sending library for PHP

Nb

CLI and local web plain text note‑taking, bookmarking, and archiving with linking, tagging, filtering, search, Git versioning & syncing, Pandoc conversion, + more, in a single portable script.

Leantime

Leantime is a goals focused project management system for non-project managers. Building with ADHD, Autism, and dyslexia in mind.

Quality
79/100
Strong
100/100
Excellent
100/100
Excellent
100/100
Excellent
Decision verdict
90/100
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.

Adoption546 stars
Verified outcomes are shown on each skill page
22K stars
Verified outcomes are shown on each skill page
8.2K stars
Verified outcomes are shown on each skill page
10K stars
Verified outcomes are shown on each skill page
FreshnessJun 10, 2026Jun 6, 2026Jun 13, 2026Jun 14, 2026
Use-case fit
Workflow fit
Platform hintsPHP, CLI, Claude CodePHP, Email, Claude CodeShell, Productivity, Claude CodePHP, Calendar, 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 signalsRAG and knowledge 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
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Install
$ npx skills add jolicode/castor
$ npx skills add PHPMailer/PHPMailer
$ npx skills add xwmx/nb
$ npx skills add Leantime/leantime