/**
 * How a gateway-executed server-tool exchange is written onto the OpenAI chat
 * transcript so Anthropic, Google, and Responses lossless metadata survives
 * the synthetic tool turn. Loop orchestration lives in `server-tool-loop.ts`.
 */
import type { Reasoning } from "@velum-labs/routekit-contracts/protocol-ir";
import { type ResponsesReasoningState } from "./openai-chat-wire.js";
export type ServerToolTranscriptCall = {
    providerIndex?: number;
    id?: string;
    name?: string;
    arguments?: string;
};
export type ServerToolTranscriptToolCall = {
    id: string;
    type: "function";
    function: {
        name: string;
        arguments: string;
    };
};
export declare function canonicalServerToolReasoning(details: readonly Reasoning[] | undefined): Reasoning[];
export declare function nativeAnthropicServerToolReasoning(canonical: readonly Reasoning[]): Reasoning[];
export declare function serverToolAssistantMessage(input: {
    calls: readonly ServerToolTranscriptCall[];
    stepContent: string | undefined;
    reasoningDetails?: readonly Reasoning[];
    responsesReasoning?: ResponsesReasoningState;
}): {
    assistant: Record<string, unknown>;
    toolCalls: ServerToolTranscriptToolCall[];
};