/**
 * Pure helpers for compaction_end events and CompactionResult handling.
 * Bodies moved verbatim from `session-stream.ts`.
 */
import type { CompactionResult } from "../../sdk/coding-agent/index.js";
import type { ServerEvent } from "../wire.js";
export declare function formatCompactionTokenStats(event: Extract<ServerEvent, {
    type: "compaction_end";
}>): string;
export declare function isSkippedCompactionResult(result: CompactionResult | void): result is CompactionResult & {
    skipped: true;
};
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