export interface AcpTimeoutErrorData {
    kind: "acp_timeout";
    method: string;
    id: number | string | null;
    timeoutMs: number;
    exitCode?: number;
    killed?: boolean;
    transportState?: string;
    recentActivity: string[];
}
/**
 * Structured error payload meaning "the session id is not known to the agent" —
 * e.g. a `session/load` / `session/resume` against a session whose on-disk store did
 * not survive a VM teardown. The sidecar normalizes the adapter's native error into
 * this shape so the resume orchestration can distinguish "fall through to a fresh
 * session" from a transport/timeout error (which must propagate). Mirrors the
 * `acp_timeout` convention.
 */
export interface UnknownSessionErrorData {
    kind: "unknown_session";
    /** Optional metadata. The discriminator is `kind` alone — the sidecar's
     * normalized error carries only `kind`, so this stays optional to keep the
     * sidecar and client contracts aligned. */
    sessionId?: string;
}
export type JsonRpcErrorData = AcpTimeoutErrorData | UnknownSessionErrorData | Record<string, unknown>;
export interface JsonRpcRequest {
    jsonrpc: "2.0";
    id: number | string | null;
    method: string;
    params?: unknown;
}
export interface JsonRpcResponse {
    jsonrpc: "2.0";
    id: number | string | null;
    result?: unknown;
    error?: JsonRpcError;
}
export interface JsonRpcError {
    code: number;
    message: string;
    data?: JsonRpcErrorData;
}
export interface JsonRpcNotification {
    jsonrpc: "2.0";
    method: string;
    params?: unknown;
}
export declare function isAcpTimeoutErrorData(value: unknown): value is AcpTimeoutErrorData;
export declare function isUnknownSessionErrorData(value: unknown): value is UnknownSessionErrorData;