{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://mda.sno.dev/spec/v1.0/schemas/_defs/metadata-namespaces.schema.json",
  "title": "metadata vendor namespaces",
  "description": "Reserved keys under top-level `metadata`. The full registry lives in REGISTRY.md (governed by spec §04).",
  "type": "object",
  "properties": {
    "mda": { "$ref": "mda-extended.schema.json" },
    "claude-code": {
      "type": "object",
      "description": "Anthropic Claude Code namespace.",
      "additionalProperties": true
    },
    "codex": {
      "type": "object",
      "description": "OpenAI Codex namespace.",
      "additionalProperties": true
    },
    "hermes": {
      "type": "object",
      "description": "Nous Research Hermes Agent namespace.",
      "additionalProperties": true
    },
    "opencode": {
      "type": "object",
      "description": "OpenCode namespace.",
      "additionalProperties": true
    },
    "openclaw": {
      "type": "object",
      "description": "OpenClaw namespace.",
      "additionalProperties": true
    },
    "skills-sh": {
      "type": "object",
      "description": "skills.sh / Skills Directory registry namespace.",
      "additionalProperties": true
    }
  },
  "patternProperties": {
    "^[a-z0-9]+(-[a-z0-9]+)*$": {
      "type": "object",
      "description": "Any other vendor namespace; key MUST be a kebab-case identifier and SHOULD be registered in REGISTRY.md.",
      "additionalProperties": true
    }
  },
  "additionalProperties": false
}