/**
 * Handles `session.compacted` — writes a compaction block to the session .md file.
 *
 * REQ-C6-01: Extracted from EventCapture god module. This handler
 * processes session.compacted events with event payload summary
 * and message history fallback.
 *
 * @module session-tracker/capture/handlers/session-compacted-handler
 */
import type { HandlerDeps } from "./types.js";
export declare class SessionCompactedHandler {
    private deps;
    constructor(deps: HandlerDeps);
    handle(sessionID: string, event: Record<string, unknown> | undefined): Promise<void>;
}
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