/**
 * Observation Hook Handler (PostToolUse)
 *
 * Captures tool usage observations after Claude executes a tool.
 * Stores file reads, writes, commands, and searches for context.
 *
 * @module @agentkits/memory/hooks/observation
 */
import { NormalizedHookInput, HookResult, EventHandler } from './types.js';
import { MemoryHookService } from './service.js';
/**
 * Observation Hook - PostToolUse Event
 *
 * Called after Claude executes a tool.
 * Captures the tool usage for future context.
 */
export declare class ObservationHook implements EventHandler {
    private service;
    private ownsService;
    constructor(service: MemoryHookService, ownsService?: boolean);
    /**
     * Shutdown the hook (closes database if owned)
     */
    shutdown(): Promise<void>;
    /**
     * Execute the observation hook
     */
    execute(input: NormalizedHookInput): Promise<HookResult>;
}
/**
 * Create observation hook handler
 */
export declare function createObservationHook(cwd: string): ObservationHook;
export default ObservationHook;
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