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
Harper is the strongest overall pick here because it has a 100/100 readiness score and fits Coding agents.
Strongest overall
Harper
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Harper
Best first install candidate based on install readiness and adoption.
Freshest repo
Harper
Most recent maintenance signal among this shortlist.
| Signal | Maildev :mailbox: SMTP Server + Web Interface for viewing and testing emails during development. | Harper Offline, privacy-first grammar checker. Fast, open-source, Rust-powered | Skaffold Easy and Repeatable Kubernetes Development | Npkill List any node_modules 📦 dir in your system and how heavy they are. You can then select which ones you want to erase to free up space 🧹 |
|---|---|---|---|---|
| Quality | 95/100 Excellent | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 97/100 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 | 5.9K stars Verified outcomes are shown on each skill page | 16K stars Verified outcomes are shown on each skill page | 16K stars Verified outcomes are shown on each skill page | 9.3K stars Verified outcomes are shown on each skill page |
| Freshness | Mar 5, 2026 | Sep 25, 2026 | Jun 15, 2026 | May 28, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | SCSS, Developer Tools, Claude Code | Rust, Developer Tools, Claude Code | Go, Developer Tools, Claude Code | TypeScript, Developer Tools, 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 | Coding agents workflows · Claude Code teams · teams that value GitHub adoption signals | Coding agents workflows · Claude Code teams · teams that value GitHub adoption signals | Coding agents workflows · Claude Code teams · teams that value GitHub adoption signals | Coding agents 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 maildev/maildev | $ npx skills add Automattic/harper | $ npx skills add GoogleContainerTools/skaffold | $ npx skills add voidcosmos/npkill |