import type { PatchOperation } from "./types";
/** The `notifications/meissa/update` envelope a server pushes over SSE (spec §09-mcp-integration.md §6). */
export interface MeissaUpdateNotification {
    method: "notifications/meissa/update";
    params: {
        target: string;
        patches: PatchOperation[];
    };
}
export interface MeissaStreamHandlers {
    /** Called with merged patches for a target, at most `maxPatchesPerSecond` times per second. */
    onPatch: (target: string, patches: PatchOperation[]) => void;
    onOpen?: () => void;
    onError?: (err: unknown) => void;
}
export interface MeissaStreamOptions {
    /** Caps how often `onPatch` fires per target, coalescing rapid updates. Default 10 (per spec). */
    maxPatchesPerSecond?: number;
}
export interface MeissaStreamConnection {
    close: () => void;
}
/**
 * Subscribe to a Meissa live-update SSE endpoint (see `createUpdateStream` on the
 * server subpath). Buffers rapid patches per target and flushes at `maxPatchesPerSecond`.
 */
export declare function connectMeissaStream(url: string, handlers: MeissaStreamHandlers, options?: MeissaStreamOptions): MeissaStreamConnection;