/**
 * Encoding a tool result as the message that answers its call.
 *
 * Deliberately its own module with **type-only** imports: the tool loop uses
 * this encoder, and `./dispatch` imports zod at runtime for schema conversion.
 * Folding the two together would pull zod into the module graph of every host
 * that imports only `@juno-ai/bind/loop`, which today needs none of it.
 */
import type OpenAI from "openai";
import type { ToolResult } from "./tool.js";
/**
 * Encode a {@link ToolResult} as the `role:"tool"` message that answers a call.
 *
 * This is the encoding the loop itself synthesizes for a failed or refused
 * call, exported so a host's own results are shaped identically — a model that
 * sees `{"success":false,"kind":…,"error":…}` from the harness and something
 * else from the host has to learn two error formats in one transcript.
 *
 * `contentParts` and `suspend` are deliberately omitted: both are control
 * signals for the host, not text for the model. A host relaying multimodal
 * parts attaches them alongside this message.
 */
export declare function toolResultMessage(toolCallId: string, result: ToolResult<unknown>): OpenAI.ChatCompletionToolMessageParam;