import type Anthropic from '@anthropic-ai/sdk';
import { type ContentPart, type ToolModelOutput } from '@use-crux/core';
export type AnthropicToolResultContent = string | Array<Anthropic.TextBlockParam | Anthropic.ImageBlockParam | Anthropic.DocumentBlockParam>;
/** Render Crux tool model output into Anthropic `tool_result` content. */
export declare function anthropicToolResultContent(modelOutput: ToolModelOutput | undefined, fallback: string): AnthropicToolResultContent;
type AnthropicContentBlockParam = Anthropic.TextBlockParam | Anthropic.ImageBlockParam | Anthropic.DocumentBlockParam;
/** Encode canonical content parts into Anthropic content blocks. */
export declare function anthropicContentBlocks(parts: readonly ContentPart[]): AnthropicContentBlockParam[];
export {};