Skill comparison
Use this as a shortlist, then open the skill detail page before adopting.
Decision summary
Strongest overall
Union
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Union
Best first install candidate based on install readiness and adoption.
Freshest repo
Solidity
Most recent maintenance signal among this shortlist.
| Signal | Howcryptoworksbook A free, open-source book that explains how crypto actually works. 15 chapters covering Bitcoin, Ethereum, Solana, DeFi, MEV, market structure, custody, stablecoins, governance, quantum resistance, and prediction markets. | Union The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance. | Go Ethereum Go implementation of the Ethereum protocol | Solidity Solidity, the Smart Contract Programming Language |
|---|---|---|---|---|
| Quality | 67/100 Promising | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 69/100 Prototype first Prototype with this skill first; keep a fallback candidate ready. | 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 | 833 stars Verified outcomes are shown on each skill page | 74K stars Verified outcomes are shown on each skill page | 51K stars Verified outcomes are shown on each skill page |
| 26K stars Verified outcomes are shown on each skill page |
| Freshness | Mar 15, 2026 | Jun 22, 2026 | Jun 29, 2026 | Sep 16, 2026 |
| Use-case fit |
| Workflow fit |
| Platform hints | Blockchain, Claude Code | Rust, Blockchain, Claude Code | Go, Blockchain, Claude Code | C++, Blockchain, 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 | Research agents workflows · Claude Code teams · teams that value GitHub adoption signals | RAG and knowledge workflows · Claude Code teams · teams that value GitHub adoption signals | Coding agents workflows · Claude Code teams · teams that value GitHub adoption signals | Data analysis 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 lawmaster10/howcryptoworksbook | $ npx skills add unionlabs/union | $ npx skills add ethereum/go-ethereum | $ npx skills add argotorg/solidity |