/**
 * LSP Client — connects to workspace language servers for diagnostics.
 */
export interface LSPServerConfig {
    command: string;
    args: string[];
}
export interface Diagnostic {
    file: string;
    line: number;
    column: number;
    severity: "error" | "warning" | "info" | "hint";
    message: string;
    source?: string;
}
export interface LSPClientConfig {
    enabled: boolean;
    servers?: Record<string, LSPServerConfig>;
}
export declare const DEFAULT_LSP_CONFIG: LSPClientConfig;
/**
 * Auto-detect which language servers might be available.
 */
export declare function detectLanguageServers(cwd: string): Record<string, LSPServerConfig>;
/**
 * Simple LSP client that can request diagnostics.
 * Uses JSON-RPC 2.0 over stdio.
 */
export declare class LSPClient {
    private process;
    private serverName;
    private config;
    private nextId;
    private buffer;
    private pendingRequests;
    constructor(name: string, config: LSPServerConfig);
    get name(): string;
    connect(rootUri: string): Promise<void>;
    disconnect(): Promise<void>;
    private sendNotification;
    private sendRequest;
    private handleData;
}
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