/**
 * PostgreSQL pg_stat_kcache - Query Analysis Tools
 *
 * Query stats, top CPU, and top I/O tools.
 */
import type { PostgresAdapter } from "../../postgres-adapter.js";
import { type ToolDefinition } from "../../../../types/index.js";
/**
 * Query stats with CPU/IO metrics joined from pg_stat_statements
 */
export declare function createKcacheQueryStatsTool(adapter: PostgresAdapter): ToolDefinition;
/**
 * Top CPU-consuming queries
 */
export declare function createKcacheTopCpuTool(adapter: PostgresAdapter): ToolDefinition;
/**
 * Top I/O-consuming queries
 */
export declare function createKcacheTopIoTool(adapter: PostgresAdapter): ToolDefinition;
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