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
Free Programming Books is the strongest overall pick here because it has a 100/100 readiness score and fits Coding agents.
Strongest overall
Free Programming Books
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Free Programming Books
Best first install candidate based on install readiness and adoption.
Freshest repo
CTFd
Most recent maintenance signal among this shortlist.
| Signal | Mnemosyne Mnemosyne: efficient learning with powerful digital flash-cards. | Free Programming Books :books: Freely available programming books | CTFd CTFs as you need them | LibreLingo 🐢 🌎 📚 a community-owned language-learning platform |
|---|---|---|---|---|
| Quality | 74/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 85/100 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 | 591 stars 0 installs | 390K stars 0 installs | 6.7K stars 0 installs | 2.6K stars 0 installs |
| Freshness | Apr 18, 2026 | Jun 13, 2026 | Jun 16, 2026 | Apr 14, 2026 |
| Use-case fit | ||||
| Stack fit | ||||
| Platform hints | Python, Education, Claude Code | Python, Education, Claude Code | Python, Education, Claude Code | Python, Education, 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 | GitHub automation 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 | Browser 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 mnemosyne-proj/mnemosyne | $ npx skills add EbookFoundation/free-programming-books | $ npx skills add CTFd/CTFd | $ npx skills add kantord/LibreLingo |