/**
 * Zoe Server — WebSocket Protocol Handlers
 *
 * All handler functions, safeSend helper, and active connections registry.
 * Extracted from websocket.ts for single-responsibility.
 */
import type { WebSocket, ServerMessage, WebSocketHandlerContext, ConnectionState } from "./ws-types.js";
/**
 * Get the number of currently active WebSocket connections.
 */
export declare function getActiveConnectionCount(): number;
/**
 * Get all connected WS clients (excluding the given one).
 * Used by settings broadcast to notify other connections of changes.
 */
export declare function getOtherClients(excludeWs?: WebSocket): Array<{
    ws: WebSocket;
    state: ConnectionState;
}>;
export declare function safeSend(ws: WebSocket, message: ServerMessage): void;
export declare function handleConnection(ws: WebSocket, req: import("http").IncomingMessage, ctx: WebSocketHandlerContext): void;
/**
 * Create an `approveTool` callback for the server adapter.
 * Sends a `tool_approval_request` to the client and waits for a
 * `tool_approval_response`. Falls back to auto-deny on timeout.
 */
export declare function createServerApproveTool(ws: WebSocket): import("../../core/types.js").ApproveToolFn;
/**
 * Close all active connections and clear the registry.
 * Used by closeWebSocket() during shutdown.
 */
export declare function closeAllConnections(): void;