/**
 * Trace Compression — Compress and decompress traces for storage.
 *
 * @example
 * ```bash
 * agentprobe trace compress traces/ --output traces.gz
 * agentprobe trace decompress traces.gz --output traces/
 * ```
 */
import type { AgentTrace } from './types';
export interface CompressedArchive {
    version: 1;
    count: number;
    traces: CompressedEntry[];
}
export interface CompressedEntry {
    filename: string;
    data: string;
}
export interface CompressionStats {
    fileCount: number;
    originalBytes: number;
    compressedBytes: number;
    ratio: number;
}
/**
 * Compress a single trace to a gzipped buffer.
 */
export declare function compressTrace(trace: AgentTrace): Buffer;
/**
 * Decompress a gzipped buffer back to a trace.
 */
export declare function decompressTrace(compressed: Buffer): AgentTrace;
/**
 * Compress a directory of trace JSON files into a single archive.
 */
export declare function compressDirectory(inputDir: string): {
    archive: Buffer;
    stats: CompressionStats;
};
/**
 * Decompress an archive back to individual trace files in a directory.
 */
export declare function decompressDirectory(archiveBuffer: Buffer, outputDir: string): CompressionStats;
/**
 * Strip embedding vectors from trace data to reduce size.
 */
export declare function stripEmbeddings(trace: AgentTrace): AgentTrace;
/**
 * Deduplicate identical tool responses across steps.
 */
export declare function deduplicateResponses(trace: AgentTrace): AgentTrace;
/**
 * Apply all compression optimizations to a trace.
 */
export declare function optimizeTrace(trace: AgentTrace): AgentTrace;
/**
 * Compress a directory with optimization (dedup + strip + gzip).
 */
export declare function compressDirectoryOptimized(inputDir: string): {
    archive: Buffer;
    stats: CompressionStats;
};
/**
 * Format compression stats for display.
 */
export declare function formatCompressionStats(stats: CompressionStats): string;
/**
 * Compress a directory and write to output file.
 */
export declare function compressToFile(inputDir: string, outputPath: string): CompressionStats;
/**
 * Decompress from a file to a directory.
 */
export declare function decompressFromFile(archivePath: string, outputDir: string): CompressionStats;
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