/**
 * Claude Code's `AskUserQuestion` — a structured multiple-choice prompt.
 *
 * The native picker cannot run here: `allow-reads` classifies it as readonly,
 * so Claude Code starts it without asking us, then waits on a UI this session
 * does not have. The native tool is withheld for that reason, via session
 * `disallowedTools` — not a settings.json deny of the same name, which would
 * also disable this host replacement. This session implements the tool as a
 * host tool: the questions are shown in Ask's own picker, and the answers are
 * the tool result.
 *
 * The input schema has to name `questions`. The Claude Code bridge turns host
 * tool schemas into a Zod object shape; an empty shape strips every argument,
 * and the picker sees `{}`.
 */
import { jsonSchema } from "ai";
export declare const ASK_USER_QUESTION_TOOL_NAME = "AskUserQuestion";
export declare const ASK_USER_QUESTION_DENIED_REASON = "Nobody is at the terminal to answer. Ask in your reply text instead.";
export declare const ASK_USER_QUESTION_MISSING_INPUT_REASON = "AskUserQuestion requires `questions`: an array of 1\u20134 items, each with `question`, `header`, `options` (each `{ label, description }`), and `multiSelect`. Call it again with those fields filled in.";
type AskUserQuestionHostTool = {
    description: string;
    inputSchema: ReturnType<typeof jsonSchema>;
    execute: (data: unknown) => Promise<unknown>;
};
export type AskUserQuestionAsk = (input: unknown) => Promise<Record<string, string> | undefined>;
type BuiltinToolFiltering = {
    mode: "allow" | "deny";
    toolNames: string[];
};
/**
 * Withhold Claude Code's native `AskUserQuestion` without dropping a host tool
 * of the same name.
 *
 * HarnessAgent `inactiveTools` cannot do this: it also filters the user tool
 * out of `toolSpecs`, so the replacement is never registered. A settings.json
 * deny of `AskUserQuestion` matches the host tool too. Merging a deny into the
 * session's builtin filtering becomes `disallowedTools` for the native tool
 * only; host `execute` still runs.
 */
export declare function denyNativeAskUserQuestion(existing: BuiltinToolFiltering | undefined): BuiltinToolFiltering;
/**
 * Host-side `AskUserQuestion`. Same name as the builtin so the model keeps
 * calling it; HarnessAgent runs `execute` on the host instead of Claude Code.
 */
export declare function buildAskUserQuestionHostTool(getAsk: () => AskUserQuestionAsk | undefined): Record<string, AskUserQuestionHostTool>;
export type AskUserQuestionOption = {
    label: string;
    description: string | undefined;
};
export type AskUserQuestionItem = {
    question: string;
    header: string | undefined;
    options: AskUserQuestionOption[];
    multiSelect: boolean;
};
/**
 * Pull the questions out of a tool input, whether the bridge sent a JSON
 * string or the parsed object.
 */
export declare function readAskUserQuestions(toolInput: unknown): AskUserQuestionItem[] | undefined;
/** First question, for the spinner — not the whole JSON payload. */
export declare function summarizeAskUserQuestion(toolInput: unknown): string | undefined;
/**
 * Told to the model as the denial reason so it can continue with the answers
 * rather than asking again.
 */
export declare function formatAskUserQuestionAnswers(answers: Record<string, string>): string;
export {};
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