Skill comparison
Use this as a shortlist, then open the skill detail page before adopting.
Decision summary
Strongest overall
Docling
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Docling
Best first install candidate based on install readiness and adoption.
Freshest repo
Docling
Most recent maintenance signal among this shortlist.
| Signal | Promises Book JavaScript Promiseの本 | Koodo Reader A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux, Android, iOS and Web | Koreader An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android devices | Docling Get your documents ready for gen AI |
|---|---|---|---|---|
| Quality | 72/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 74/100 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. |
| Adoption | 1.4K stars Verified outcomes are shown on each skill page | 27K stars Verified outcomes are shown on each skill page | 27K stars Verified outcomes are shown on each skill page |
| 63K stars Verified outcomes are shown on each skill page |
| Freshness | Jun 23, 2025 | Jul 9, 2026 | Jun 24, 2026 | Jul 17, 2026 |
| Use-case fit |
| Workflow fit |
| Platform hints | HTML, PDF, Claude Code | JavaScript, PDF, Claude Code | Lua, PDF, Claude Code | Python, PDF, Claude Code |
| Warnings | Repository looks stale · No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet |
| Best for | Document processing workflows · Claude Code teams · teams that value GitHub adoption signals | Document processing workflows · Claude Code teams · teams that value GitHub adoption signals | Document processing workflows · Claude Code teams · teams that value GitHub adoption signals | Document processing workflows · Claude Code teams · teams that value GitHub adoption signals |
| Not ideal for | teams that require actively maintained dependencies · production agents without a repository 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 azu/promises-book | $ npx skills add koodo-reader/koodo-reader | $ npx skills add koreader/koreader | $ npx skills add docling-project/docling |