/**
 * Shared tool helpers and constants.
 */
import type { ToolSpec } from './types.js';
/**
 * A no-op tool spec that instructs the model to ignore it completely.
 *
 * Some model providers (e.g. Bedrock) require a tool configuration when messages
 * contain tool use/result blocks. This noop tool can be injected to satisfy that
 * requirement without affecting model behavior.
 */
export declare const NOOP_TOOL_SPEC: ToolSpec;
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