/**
 * @license
 * Copyright 2026 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
import type { StreamEvent } from "@workglow/task-graph";
/**
 * Detects an Anthropic safety refusal in a streaming event and emits a
 * first-class refusal (folded into the reserved `refusal` output field).
 *
 * Anthropic signals a refusal via `message_delta` with
 * `delta.stop_reason === "refusal"` — the model declines rather than producing
 * usable content, so there is no separate refusal text. Any partial text the
 * model did emit still flows to the `text` port; this marks the turn as a
 * refusal so callers can detect it.
 */
export declare function maybeEmitAnthropicRefusal<Output = Record<string, any>>(event: unknown, emit: (e: StreamEvent<Output>) => void): void;