{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://coding-agent-skills.local/schemas/skill-manifest.schema.json",
  "title": "Coding Agent Skill Manifest",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "name",
    "version",
    "mode",
    "evidenceContract",
    "commandPolicy",
    "adapterSchema",
    "adapterCompatibility"
  ],
  "properties": {
    "name": {"type": "string", "pattern": "^[a-z0-9]+(?:-[a-z0-9]+)*$"},
    "version": {"type": "string", "pattern": "^[0-9]+\\.[0-9]+\\.[0-9]+$"},
    "mode": {"type": "string", "enum": ["audit-only", "action-capable"]},
    "evidenceContract": {"type": "string", "minLength": 1},
    "commandPolicy": {"type": "string", "minLength": 1},
    "adapterSchema": {"type": "string", "minLength": 1},
    "adapterCompatibility": {
      "type": "object",
      "additionalProperties": false,
      "required": ["contractVersion", "compatibleAdapterVersions"],
      "properties": {
        "contractVersion": {"type": "string", "const": "1.0.0"},
        "compatibleAdapterVersions": {
          "type": "array",
          "minItems": 1,
          "uniqueItems": true,
          "items": {"type": "string", "const": "1.0.0"}
        }
      }
    },
    "adapterInterface": {"type": ["string", "null"]},
    "description": {"type": "string"}
  }
}