import { EventEmitter } from 'events';
import { WebSocket } from 'ws';
export interface ExtensionMcpTool {
    name: string;
    title?: string;
    description?: string;
    inputSchema: Record<string, unknown>;
    outputSchema?: Record<string, unknown>;
    annotations?: Record<string, unknown>;
    _meta?: Record<string, unknown>;
}
export interface ExtensionMcpServerState {
    server: string;
    displayName?: string;
    extensionId: string;
    extensionVersion?: string;
    connectedAt: number;
    lastSeenAt: number;
    tools: ExtensionMcpTool[];
}
declare class ExtensionMcpRegistry extends EventEmitter {
    private servers;
    register(input: {
        server: string;
        displayName?: string;
        extensionId: string;
        extensionVersion?: string;
        tools: ExtensionMcpTool[];
        ws: WebSocket;
    }): void;
    unregisterSocket(ws: WebSocket): void;
    has(server: string): boolean;
    listServers(): ExtensionMcpServerState[];
    listTools(server: string): ExtensionMcpTool[];
    touchSocket(ws: WebSocket): void;
    callTool(server: string, tool: string, args: Record<string, unknown>): Promise<unknown>;
    resolveResponse(ws: WebSocket, raw: {
        id?: unknown;
        result?: unknown;
        error?: {
            message?: unknown;
        };
    }): boolean;
    private emitChangedIfNeeded;
}
export declare const extensionMcpRegistry: ExtensionMcpRegistry;
export {};