/**
 * Worker Result Compactor — compacts oversized structured payloads and enforces
 * the serialized egress byte boundary to prevent OOM and hard payload failures.
 */
import type { SandboxResult } from '../types.js';
/**
 * Automatically compacts oversized structured result payloads (objects and collections)
 * so that queries returning large datasets (e.g. 50 entries with markdown content)
 * do not fail outright when exceeding the egress limit.
 *
 * Primitive strings and numbers are deliberately left uncompacted so that raw
 * string contract tests reject properly with structured aggregation guidance.
 */
export declare function compactOversizedResult(val: unknown, limitBytes: number, depth?: number, seen?: WeakSet<object>): unknown;
/**
 * Enforces the egress byte limit during JSON serialization and applies
 * `compactOversizedResult` fallback when an object/array exceeds the boundary.
 */
export declare function serializeAndEnforceEgress(result: SandboxResult, maxResultSize?: number): void;
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