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
Union is the strongest overall pick here because it has a 100/100 readiness score and fits RAG and knowledge.
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
Hardhat
Most recent maintenance signal among this shortlist.
| Signal | Starkscan Verifier Verify Cairo contracts on Starkscan in 1 minute. | Ethers.Js Complete Ethereum library and wallet implementation in JavaScript. | Hardhat Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. | Union The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance. |
|---|---|---|---|---|
| Quality | 71/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 73/100 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 | 1.3K stars Verified outcomes are shown on each skill page | 8.7K stars Verified outcomes are shown on each skill page | 8.5K stars Verified outcomes are shown on each skill page | 74K stars Verified outcomes are shown on each skill page |
| Freshness | Jun 2, 2024 | Jun 18, 2026 | Jun 29, 2026 | Jun 22, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | TypeScript, Blockchain, Claude Code | TypeScript, Blockchain, Claude Code | TypeScript, Blockchain, Claude Code | Rust, Blockchain, 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 | 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 | RAG and knowledge 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 starkscan/starkscan-verifier | $ npx skills add ethers-io/ethers.js | $ npx skills add NomicFoundation/hardhat | $ npx skills add unionlabs/union |