claude-skill-registry/schema/skill.schema.json at main · majiayu000/claude-skill-registry · GitHub

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{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Claude Agent Skill Schema",
  "description": "JSON Schema for validating SKILL.md frontmatter",
  "type": "object",
  "required": ["name", "description"],
  "properties": {
    "name": {
      "type": "string",
      "pattern": "^[a-z0-9][a-z0-9-]{0,63}$",
      "description": "Skill name (lowercase, alphanumeric, hyphens only, max 64 chars)"
    },
    "description": {
      "type": "string",
      "minLength": 10,
      "maxLength": 500,
      "description": "Brief description of what the skill does"
    },
    "version": {
      "type": "string",
      "pattern": "^\\d+\\.\\d+\\.\\d+$",
      "description": "Semantic version (e.g., 1.0.0)"
    },
    "author": {
      "type": "string",
      "maxLength": 100,
      "description": "Author name or GitHub username"
    },
    "license": {
      "type": "string",
      "description": "Software license (any SPDX license or custom text)"
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^[a-z0-9-]+$",
        "maxLength": 30
      },
      "maxItems": 10,
      "uniqueItems": true,
      "description": "Tags for categorization"
    },
    "category": {
      "type": "string",
      "enum": [
        "development", "testing", "data", "design",
        "documents", "productivity", "devops", "security",
        "marketing", "product", "communication", "creative"
      ],
      "description": "Primary category"
    },
    "model": {
      "type": "string",
      "enum": ["sonnet", "opus", "haiku"],
      "description": "Recommended Claude model"
    },
    "tools": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": [
          "read", "write", "edit", "bash", "grep", "glob",
          "webfetch", "websearch", "ask", "lsp"
        ]
      },
      "maxItems": 20,
      "uniqueItems": true,
      "description": "Required tools/capabilities"
    },
    "requires_network": {
      "type": "boolean",
      "description": "Whether skill needs network access"
    },
    "requires_approval": {
      "type": "boolean",
      "description": "Whether operations need user approval"
    },
    "homepage": {
      "type": "string",
      "format": "uri",
      "maxLength": 500,
      "description": "Project homepage URL"
    },
    "repository": {
      "type": "string",
      "pattern": "^https://github\\.com/[a-zA-Z0-9_-]+/[a-zA-Z0-9_.-]+$",
      "description": "GitHub repository URL"
    },
    "keywords": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 50
      },
      "maxItems": 15,
      "uniqueItems": true
    }
  },
  "additionalProperties": true
}