/**
 * The Claude Code session file: one JSON object per line.
 *
 * The store holds ten entry types (C-3). This module reads the few that carry turns and writes
 * exactly two, `user` and `assistant` (C-9) — fewer types, fewer ways to corrupt the store.
 */
export declare const ENTRY_TYPE_USER = "user";
export declare const ENTRY_TYPE_ASSISTANT = "assistant";
export declare const ENTRY_TYPE_SUMMARY = "summary";
/** The only entry types `serialize` writes (C-9). */
export declare const WRITTEN_ENTRY_TYPES: readonly string[];
export type RawEntry = Record<string, unknown>;
export interface JsonlParse {
    entries: RawEntry[];
    /** Set when a line is not a complete entry — the file is cut mid-entry. */
    unreadable: string | null;
}
export interface ActiveEntryPath {
    entries: RawEntry[];
    unreadable: string | null;
}
/** Parse a session file. A line that is not a complete entry makes the whole file unreadable. */
export declare function parseJsonl(text: string): JsonlParse;
/** Follow the last non-sidechain UUID record to the root of Claude's active transcript. */
export declare function resolveActiveEntryPath(entries: RawEntry[]): ActiveEntryPath;
export declare function asString(value: unknown): string | null;
export declare function asObject(value: unknown): Record<string, unknown> | null;
export declare function asArray(value: unknown): unknown[] | null;
/** ISO-8601 UTC, the vocabulary every timestamp of the canonical model uses. */
export declare function toIsoUtc(value: unknown): string | null;