{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "endpoint-descriptor.schema.json",
  "title": "Custom Endpoint Descriptor",
  "description": "Defines a custom HTTP endpoint that executes server-side JavaScript code.",
  "markdownDescription": "AI guidance: use custom endpoints for model-owned actions and lightweight APIs. `name` must be unique. `route` should start with `/api/` and must not conflict with another route/method. Use `{id}` style path parameters when needed. Scripts can access request data through the endpoint context and return HTTP results with helpers such as `context.ok(value)`, `context.created(value)`, and `context.noContent()` where available. Require authentication by default and add `requiredPermissions` for protected operations.",
  "type": "object",
  "properties": {
    "$schema": {
      "type": "string",
      "description": "Optional schema reference used when this descriptor is stored as a model descriptor file."
    },
    "name": {
      "type": "string",
      "description": "Unique endpoint identifier used by designer/model health. Prefer PascalCase or kebab-case, for example 'SearchCustomers'.",
      "minLength": 1
    },
    "route": {
      "type": "string",
      "description": "URL route pattern. Must start with '/' and should use an application-specific prefix such as '/api/low-code/events/{id}'. Route parameters use ASP.NET style braces, for example '{id}'.",
      "minLength": 1,
      "pattern": "^/"
    },
    "method": {
      "type": "string",
      "description": "HTTP method. GET should be read-only; POST/PUT/PATCH/DELETE may mutate state.",
      "enum": ["GET", "POST", "PUT", "DELETE", "PATCH"],
      "default": "GET"
    },
    "javascript": {
      "type": "string",
      "description": "JavaScript code to execute. Use context request/response helpers and services exposed by the host, such as db, currentUser/currentTenant, authorization, emailSender, config, http, event bus, background jobs, and logging helpers.",
      "minLength": 1
    },
    "requireAuthentication": {
      "type": "boolean",
      "description": "Whether authentication is required. Keep true unless this endpoint is intentionally public.",
      "default": true
    },
    "requiredPermissions": {
      "type": "array",
      "description": "Permission names required to access the endpoint. Checked only when authentication is required. Values should reference custom permissions or known static permissions.",
      "items": {
        "type": "string"
      }
    },
    "description": {
      "type": "string",
      "description": "Optional human-readable description for designer documentation and model health context."
    }
  },
  "required": ["name", "route", "javascript"],
  "additionalProperties": false,
  "examples": [
    {
      "name": "SearchCustomers",
      "route": "/api/low-code/customers/search",
      "method": "GET",
      "requireAuthentication": true,
      "requiredPermissions": ["Acme.Customers.View"],
      "javascript": "var q = context.request.query.q || ''; var table = await db.query('Acme.Crm.Customer'); var rows = await table.where(c => c.Name.toLowerCase().includes(q.toLowerCase())).take(10).toList(); return context.ok(rows);"
    }
  ]
}