/**
 * postgres-mcp - MCP Server Wrapper
 *
 * Wraps the MCP SDK server with database adapter integration,
 * tool filtering, logging capabilities, and graceful shutdown support.
 */
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import type { DatabaseAdapter } from "../adapters/database-adapter.js";
import type { ToolFilterConfig } from "../types/index.js";
import type { InstructionLevel } from "../constants/server-instructions.js";
import type { AuditConfig } from "../audit/index.js";
export interface ServerConfig {
    name: string;
    version: string;
    adapter: DatabaseAdapter;
    toolFilter?: string | undefined;
    instructionLevel?: InstructionLevel | undefined;
    auditConfig?: AuditConfig | undefined;
}
/**
 * PostgreSQL MCP Server
 */
export declare class PostgresMcpServer {
    private mcpServer;
    private adapter;
    private filterConfig;
    private transport;
    private auditLogger;
    private backupManager;
    constructor(config: ServerConfig);
    /**
     * Register all tools, resources, and prompts
     */
    registerComponents(): void;
    /**
     * Register postgres://help resources for on-demand reference documentation.
     * Always registers postgres://help (gotchas). Group-specific help is filtered
     * by the tool filter configuration.
     */
    private registerHelpResources;
    /**
     * Start the server with stdio transport
     */
    start(): Promise<void>;
    /**
     * Gracefully stop the server
     */
    stop(): Promise<void>;
    /**
     * Get the underlying MCP server instance
     */
    getMcpServer(): McpServer;
    /**
     * Get the database adapter
     */
    getAdapter(): DatabaseAdapter;
    /**
     * Get filter configuration
     */
    getFilterConfig(): ToolFilterConfig;
    /**
     * Register the postgres://audit resource for agent-readable audit trail.
     * Returns recent audit entries with a session summary including token
     * consumption when audit is enabled, or a disabled message.
     */
    private registerAuditResource;
}
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