/**
 * mcpBridgeManager.ts
 *
 * 负责管理与本地外部 Stdio MCP 进程（如 npx -y doc-processor-mcp）的长连接通信，
 * 发现工具、代理工具执行，并提供快捷的文档提取转换能力。
 */
export interface McpServerConfig {
    command: string;
    args: string[];
    cwd?: string;
    env?: Record<string, string>;
}
export interface McpToolDefinition {
    serverName: string;
    name: string;
    description: string;
    parameters: Record<string, unknown>;
}
export declare function getMcpBaseDir(): string;
export declare function getMcpUploadsDir(): string;
export declare function getMcpOutputsDir(): string;
export declare function getMcpTempDir(): string;
declare class McpBridgeManager {
    private static instance;
    private clients;
    private toolCache;
    private isConnecting;
    private constructor();
    static getInstance(): McpBridgeManager;
    /**
     * 获取 doc-processor 运行配置:
     * "doc-processor": {
     *   "command": "npx",
     *   "args": ["-y", "doc-processor-mcp"]
     * }
     */
    private getDocProcessorConfig;
    /**
     * 初始化并连接指定的 MCP 服务
     */
    ensureServerConnected(serverName: string): Promise<boolean>;
    /**
     * 获取所有已挂载 Stdio MCP 服务的工具定义（格式适配为 OpenAI Tool Schema）
     */
    getAllTools(): Promise<Array<{
        type: 'function';
        function: {
            name: string;
            description: string;
            parameters: Record<string, unknown>;
        };
    }>>;
    /**
     * 执行指定工具
     */
    callTool(toolName: string, args: Record<string, unknown>): Promise<any>;
    /**
     * 文档快捷解析：利用 doc-processor 的工具将文件解析为 Markdown 格式文本
     */
    parseDocumentToMarkdown(filePath: string, originalName: string): Promise<string>;
}
export default McpBridgeManager;
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