Crypto Skill Creator

The definitive guide for creating agent skills for the CryptoSkills directory. Every skill in this directory follows the same enriched pattern — this skill teaches you exactly how to replicate it.

CryptoSkills follows the agentskills.io spec. Skills are agent-agnostic and work with Claude Code, Cursor, Cline, Codex, and any compatible AI coding agent.

What You Probably Got Wrong

• "A skill is just a markdown file" → An enriched skill is 10+ files across 5 directories: SKILL.md, 4 examples, docs, resources, and a starter template. The SKILL.md alone is 300-1500 lines.
• "Any markdown format works" → YAML frontmatter with specific required fields is mandatory. Categories and chains are validated against a whitelist — freeform values fail validation.
• "Examples are optional nice-to-haves" → Exactly 4 examples per skill, each in its own directory with a README.md. Every code block must be copy-paste ready and independently runnable.
• "I can organize sections however I want" → Section order is fixed. "What You Probably Got Wrong" must come before Quick Start. Contract Addresses need "Last verified" dates. The structure is enforced for consistency across 95+ skills.
• "Just add it to the repo" → Skills must be registered in .claude-plugin/marketplace.json (alphabetical order) and pass validate-marketplace.ts with 0 errors before merging.

Skill Anatomy

Every enriched skill produces exactly this structure: