{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ToolCallNode",
  "title": "ToolCallNode",
  "properties": {
    "name": {
      "type": "string",
      "title": "Name",
      "description": "The name of the child tool to invoke next."
    },
    "args": {
      "anyOf": [
        {
          "additionalProperties": true,
          "type": "object"
        },
        {
          "type": "null"
        }
      ],
      "title": "Args",
      "description": "Optional prefilled arguments for this child tool. Keys must match the tool's parameter names and values must satisfy the tool's JSON schema. Supports partial prefill; non-overlapping parameters are left to the model."
    }
  },
  "type": "object",
  "required": [
    "name"
  ],
  "description": "Typed child override for prefilled arguments.\n\nWhen used in a ChildToolRule, if this child is selected next, its `args` will be\napplied as prefilled arguments (overriding overlapping LLM-provided values)."
}