GuardToolCallDecision

type GuardToolCallDecision = 
  | void
  | undefined
  | null
  | {
  result: unknown;
  type: "skip";
}
  | {
  reason?: string;
  type: "abort";
};

Defined in: packages/ai/src/activities/chat/middleware/types.ts:484

Decision returned from onGuardToolCall. A guard cannot change the args.

• undefined/void: allow the call. The next guard runs.
• { type: 'skip', result }: deny the call. The tool does not run, and the model gets result, as for an onBeforeToolCall skip.
• { type: 'abort', reason }: abort the entire chat run