/**
 * Agent Discovery
 *
 * Discovers agent tables by querying the agent_chat_module config table
 * at runtime. The module stores schema_id, table names, and table IDs
 * when provisioned — no smart tags needed.
 *
 * Results are cached per-database with a TTL so the REST middleware
 * doesn't hit the database on every request.
 *
 * Discovery is keyed by `database_id`, as every other module lookup is: one
 * serving database holds several tenants' schemas, so an unkeyed lookup does
 * not fail — it resolves a neighbouring tenant's agent tables, and the cache
 * then serves that for its whole TTL.
 */
import { Pool } from 'pg';
export interface AgentTableInfo {
    /** The PostgreSQL schema name (e.g. 'agent_public') */
    schemaName: string;
    /** The table name (e.g. 'agent_thread') */
    tableName: string;
}
export interface AgentDiscovery {
    thread: AgentTableInfo | null;
    message: AgentTableInfo | null;
    task: AgentTableInfo | null;
}
/** Clear all cached discovery results (for testing) */
export declare function clearAgentDiscoveryCache(): void;
/**
 * Look up agent table info for a database, querying the module config table.
 * Results are cached per database id with a 60s TTL.
 */
export declare function getAgentDiscovery(pool: Pool, databaseId: string): Promise<AgentDiscovery | null>;