import type { Api } from "../../../api.js";
/**
 * When the proxy token baked into the running harness stops being safe to
 * reuse.
 *
 * The server re-arms the token on every proxy call, so the clock runs from
 * the last turn that reached Anthropic rather than from when it was minted.
 * Anchoring it to mint time instead would tear down a conversation that is
 * still going — a cold start, a replayed history preamble and the loss of
 * Claude Code's in-session memory, for a token that had not expired.
 *
 * Exported for tests.
 */
export declare function proxyTokenDeadlineMs(input: {
    mintedAtMs: number;
    lastUsedAtMs: number | undefined;
    ttlMs: number;
}): number;
/**
 * The result of trying to take the chat for one local turn. `busy` is an
 * answer rather than a failure — another session is mid-turn — so it does not
 * end the session the way a transport error does.
 */
export type ChatTurnClaim = {
    outcome: "claimed";
} | {
    outcome: "busy";
} | {
    outcome: "unavailable";
    error: unknown;
};
/**
 * Take the chat for one local turn.
 *
 * Exported for tests.
 */
export declare function claimChatTurn(api: Api, chatUuid: string, ownerId: string): Promise<ChatTurnClaim>;
/**
 * Report an API failure the way every other call in the CLI does, and exit.
 * Never returns: `handleApiCall` exits on a recognised API error, and anything
 * else is rethrown for the top-level handler.
 */
export declare function reportApiFailure(error: unknown): Promise<never>;
/**
 * Hand the chat back after a turn.
 *
 * Recording the turn already does this, but a turn that spent nothing has
 * nothing to record — a stall, an expired token, a workspace out of credits —
 * and the claim would sit there until it expired, telling the next process the
 * chat was busy.
 *
 * Best effort: the TTL is the backstop, and a reply the user has already read
 * must not fail on the way out.
 */
export declare function releaseChatTurn(api: Api, chatUuid: string, ownerId: string): Promise<void>;
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