{
  "openapi": "3.1.0",
  "info": {
    "title": "Heliox OS Public Metadata API",
    "version": "1.0.0",
    "description": "Read-only public metadata and documentation MCP. No endpoint controls a user's computer or local Heliox daemon."
  },
  "servers": [{ "url": "https://www.helioxos.dev" }],
  "paths": {
    "/capabilities.json": {
      "get": {
        "operationId": "getCapabilities",
        "summary": "Get generated capability metadata",
        "responses": {
          "200": {
            "description": "Capability catalog",
            "content": { "application/json": { "schema": { "type": "object" } } }
          }
        }
      }
    },
    "/releases.json": {
      "get": {
        "operationId": "getReleases",
        "summary": "Get structured releases",
        "responses": {
          "200": {
            "description": "Release catalog",
            "content": { "application/json": { "schema": { "type": "object" } } }
          }
        }
      }
    },
    "/api/mcp": {
      "get": {
        "operationId": "getMcpServerCard",
        "summary": "Get the read-only MCP server card",
        "responses": { "200": { "description": "MCP endpoint metadata" } }
      },
      "post": {
        "operationId": "callDocumentationMcp",
        "summary": "Send a JSON-RPC request to the read-only documentation MCP",
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "required": ["jsonrpc", "method"],
                "properties": {
                  "jsonrpc": { "const": "2.0" },
                  "id": {},
                  "method": { "type": "string" },
                  "params": { "type": "object" }
                }
              }
            }
          }
        },
        "responses": {
          "200": { "description": "JSON-RPC response" },
          "202": { "description": "Notification accepted" },
          "403": { "description": "Invalid browser Origin" }
        }
      }
    }
  }
}