import type { ContextContainer } from "#context/container.js";
import type { UnstampedMessageStreamEvent } from "#protocol/message.js";
import type { RouteContext } from "#public/definitions/channel.js";
export declare const LEGACY_REMOTE_AGENT_PROTOCOL_VERSION = 1;
/** A session created by a protocol-1 caller. */
export interface LegacyRemoteAgentCaller {
    /**
     * The caller's background task; its questions and sign-ins are forwarded
     * only with one. Captured at create: a 0.66–0.68 caller's model-called
     * agents start in a task, and those callers never check it against later turns.
     */
    readonly taskId?: string;
}
/**
 * Removes the `callback.taskId` a protocol-1 caller adds when it delegates
 * from a background task. Current callers don't send it. The task id is
 * returned so the session can name it back to the caller. The caller's
 * `activityObserver` needs no removal: eve ignores that field from any caller.
 */
export declare function splitLegacyTaskFields(input: Record<string, unknown>): {
    readonly payload: Record<string, unknown>;
    readonly taskId?: string;
};
/**
 * Sends a question, approval, or sign-in to a protocol-1 caller in the
 * `task.*` callback it expects. Returns whether the event was forwarded and
 * must stay off this session's own channel.
 */
export declare function forwardLegacySessionInput(ctx: ContextContainer, caller: LegacyRemoteAgentCaller, event: UnstampedMessageStreamEvent): Promise<boolean>;
/**
 * Renames a `task.*` callback that a remote agent sends a protocol-1 caller to
 * the payload kind the caller's session reads. The callback URL resolves to the
 * caller's newest deployment, while the session waiting on it may still run on
 * an eve 0.66–0.68 build; both read the renamed kinds. The caller still
 * validates the result.
 */
export declare function renameLegacyTaskCallback(body: unknown): unknown;
/** Route a protocol-1 caller posts its answers to a remote agent's question or approval. */
export declare const legacyTaskInputRoute: {
    readonly handler: typeof handleLegacyTaskInputRequest;
    readonly path: "/eve/v1/task-input/:token";
};
/**
 * Delivers a protocol-1 caller's answers. The token is the capability the
 * caller derived from this session's create-once continuation token, so it
 * authorizes the request on its own, as it did in protocol 1.
 */
declare function handleLegacyTaskInputRequest(request: Request, ctx: RouteContext): Promise<Response>;
export {};