{
  "name": "Serverless Function",
  "description": "Hierarchical structure of a serverless function deployed on scalable PaaS platforms including Vercel, Netlify, Cloudflare Workers, Heroku, Fly.io, Railway, and Render.",
  "fields": [
    {
      "name": "id",
      "type": "string",
      "description": "Platform-assigned unique function identifier.",
      "required": false
    },
    {
      "name": "name",
      "type": "string",
      "description": "Function name used in deployment and URL routing.",
      "required": true
    },
    {
      "name": "platform",
      "type": "string",
      "description": "Hosting platform (vercel, netlify, cloudflare-workers, heroku, fly-io, railway, render, northflank).",
      "required": false
    },
    {
      "name": "runtime",
      "type": "string",
      "description": "Execution runtime (nodejs18, nodejs20, python3.12, go1.21, deno, bun, edge-runtime, workerd).",
      "required": true
    },
    {
      "name": "handler",
      "type": "string",
      "description": "Entry point file path or exported function name.",
      "required": true
    },
    {
      "name": "route",
      "type": "string",
      "description": "URL path pattern that routes requests to this function.",
      "required": false
    },
    {
      "name": "region",
      "type": "string",
      "description": "Deployment region or 'edge' for global distribution.",
      "required": false,
      "default": "edge"
    },
    {
      "name": "memoryMB",
      "type": "integer",
      "description": "Memory allocation in megabytes.",
      "required": false,
      "default": 256
    },
    {
      "name": "timeoutSeconds",
      "type": "integer",
      "description": "Maximum execution time in seconds before termination.",
      "required": false,
      "default": 30
    },
    {
      "name": "maxConcurrency",
      "type": "integer",
      "description": "Maximum concurrent function invocations.",
      "required": false
    },
    {
      "name": "scaleToZero",
      "type": "boolean",
      "description": "Whether the function scales to zero between invocations.",
      "required": false,
      "default": true
    },
    {
      "name": "environment",
      "type": "object",
      "description": "Runtime environment variables.",
      "required": false
    },
    {
      "name": "triggers",
      "type": "array",
      "description": "Invocation triggers (http, cron, queue, event, webhook).",
      "required": false,
      "items": {
        "type": "object",
        "fields": [
          {"name": "type", "type": "string", "description": "Trigger type (http, cron, queue, event, webhook).", "required": true},
          {"name": "schedule", "type": "string", "description": "Cron schedule expression."},
          {"name": "method", "type": "string", "description": "HTTP method (GET, POST, PUT, PATCH, DELETE, ANY)."}
        ]
      }
    },
    {
      "name": "deployedAt",
      "type": "string",
      "description": "Timestamp of the most recent deployment.",
      "required": false,
      "format": "date-time"
    },
    {
      "name": "status",
      "type": "string",
      "description": "Current function status (active, deploying, failed, paused).",
      "required": false,
      "default": "active"
    }
  ]
}