@mastra/core/dist/loop/workflows/stream.d.ts

Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.

import { ReadableStream } from 'node:stream/web';
import type { ToolSet } from 'ai-v5';
import type { OutputSchema } from '../../stream/base/schema.js';
import type { ChunkType } from '../../stream/types.js';
import type { LoopRun } from '../types.js';
/**
 * Check if a ReadableStreamDefaultController is open and can accept data.
 *
 * Note: While the ReadableStream spec indicates desiredSize can be:
 * - positive (ready), 0 (full but open), or null (closed/errored),
 * our empirical testing shows that after controller.close(), desiredSize becomes 0.
 * Therefore, we treat both 0 and null as closed states to prevent
 * "Invalid state: Controller is already closed" errors.
 *
 * @param controller - The ReadableStreamDefaultController to check
 * @returns true if the controller is open and can accept data
 */
export declare function isControllerOpen(controller: ReadableStreamDefaultController<any>): boolean;
export declare function workflowLoopStream<Tools extends ToolSet = ToolSet, OUTPUT extends OutputSchema | undefined = undefined>({ resumeContext, requireToolApproval, telemetry_settings, models, toolChoice, modelSettings, _internal, modelStreamSpan, messageId, runId, messageList, startTimestamp, streamState, agentId, toolCallId, ...rest }: LoopRun<Tools, OUTPUT>): ReadableStream<ChunkType<OUTPUT>>;
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