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
Hedy
Most recent maintenance signal among this shortlist.
| Signal | Learn Gdscript Learn Godot's GDScript programming language from zero, right in your browser, for free. | Free Programming Books :books: Freely available programming books | Rathena rAthena is an open-source cross-platform MMORPG server. | Hedy Hedy is a gradual programming language to teach children programming. Gradual languages use different language levels, where each level adds new concepts and syntactic complexity. At the end of the Hedy level sequence, kids master a subset of syntactically valid Python. |
|---|---|---|---|---|
| Quality | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 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. | 100/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. |
| Adoption | 2.7K stars 0 installs | 390K stars 0 installs | 3.4K stars 0 installs | 1.6K stars 0 installs |
| Freshness | Jun 12, 2026 | Jun 13, 2026 | Jun 15, 2026 | Jun 15, 2026 |
| Use-case fit | ||||
| Stack fit | ||||
| Platform hints | GDScript, Education, Claude Code, Browser agents | Python, Education, Claude Code | C++, Education, Claude Code | CSS, 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 | Web scraping 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 GDQuest/learn-gdscript | $ npx skills add EbookFoundation/free-programming-books | $ npx skills add rathena/rathena | $ npx skills add hedyorg/hedy |