/**
 * Agent stream wire format — ADR 0039 P0.
 * Eve-aligned event vocabulary for Host NDJSON streams and Console consumers.
 */
/** Response / stream header for the active run handle (distinct from continuationToken). */
export declare const ZHIN_SESSION_ID_HEADER = "x-zhin-session-id";
export declare const AGENT_STREAM_MEDIA_TYPE = "application/x-ndjson; charset=utf-8";
/** Stable session API prefix (not Eve `/eve/v1`). */
export declare const ZHIN_AGENT_SESSION_API_PREFIX = "/zhin/v1";
export declare const AgentStreamEventType: {
    readonly SESSION_STARTED: "session.started";
    readonly SESSION_WAITING: "session.waiting";
    readonly SESSION_COMPLETED: "session.completed";
    readonly SESSION_FAILED: "session.failed";
    readonly TURN_STARTED: "turn.started";
    readonly TURN_COMPLETED: "turn.completed";
    readonly TURN_FAILED: "turn.failed";
    readonly MESSAGE_RECEIVED: "message.received";
    readonly MESSAGE_APPENDED: "message.appended";
    readonly MESSAGE_COMPLETED: "message.completed";
    readonly ACTIONS_REQUESTED: "actions.requested";
    readonly ACTION_RESULT: "action.result";
    readonly REASONING_APPENDED: "reasoning.appended";
    readonly SUBAGENT_CALLED: "subagent.called";
    readonly SUBAGENT_COMPLETED: "subagent.completed";
    readonly INPUT_REQUESTED: "input.requested";
    readonly INPUT_COMPLETED: "input.completed";
    readonly AUTHORIZATION_REQUIRED: "authorization.required";
    readonly AUTHORIZATION_COMPLETED: "authorization.completed";
    readonly STEP_STARTED: "step.started";
    readonly STEP_COMPLETED: "step.completed";
    readonly STEP_INTERRUPTED: "step.interrupted";
};
export type AgentStreamEventTypeName = (typeof AgentStreamEventType)[keyof typeof AgentStreamEventType];
export type AgentStreamEvent = {
    type: AgentStreamEventTypeName | (string & {});
    data?: Record<string, unknown>;
    timestamp?: number;
};
export type StartAgentSessionResponse = {
    ok: true;
    sessionId: string;
    continuationToken: string;
};
export type ContinueAgentSessionBody = {
    continuationToken: string;
    message: string;
};
export type ContinueAgentSessionResponse = {
    ok: true;
    sessionId: string;
    continuationToken: string;
};
/** One NDJSON line (includes trailing newline). */
export declare function formatAgentStreamNdjsonLine(event: AgentStreamEvent): string;
/**
 * Minimal reducer state for Console / SDK clients consuming NDJSON streams.
 */
export type AgentStreamPendingInput = {
    requestId: string;
    kind: string;
    toolName?: string;
    args?: Record<string, unknown>;
    prompt?: string;
};
export type AgentStreamPendingAuthorization = {
    requestId: string;
    connection: string;
    authUrl?: string;
    scope?: string;
};
export type AgentStreamReduceState = {
    assistantText: string;
    lastEventType: string | null;
    waiting: boolean;
    failed: boolean;
    pendingInputs: AgentStreamPendingInput[];
    pendingAuthorizations: AgentStreamPendingAuthorization[];
};
export declare function createAgentStreamReduceState(): AgentStreamReduceState;
export declare function reduceAgentStreamEvent(state: AgentStreamReduceState, event: AgentStreamEvent): AgentStreamReduceState;
//# sourceMappingURL=agent-stream.d.ts.map