/**
 * session_search agent tool — FTS5-backed cross-session recall.
 *
 * Three calling shapes (auto-detected):
 *   1. Discovery   — { query }           → search all sessions, return top hits with snippet + bookends
 *   2. Browse      — { }                 → list recent sessions chronologically
 *   3. Source filter — { query, sources } → limit to tui / gateway-reasoning / gateway-chat
 */
import type { ToolDefinition } from "./extensions/types.ts";
export declare function createSessionSearchToolDefinition(agentDir?: string): ToolDefinition;
//# sourceMappingURL=session-search-tool.d.ts.map