import type { Build } from "../../knowledge/transcript/schema.js";
import type { RecordEnvelope } from "../../knowledge/transcript/wire.js";
import type { NativeBase, NativeEntry, NativeHistory } from "./native.js";
export declare function parseCodexHistory(text: string | Uint8Array): NativeHistory;
/** The writer build the rollout's own header names. The recorder writes one
 * `cli_version` per rollout and no build hash, so the version stands alone. */
export declare function codexWriterBuild(history: NativeHistory): Build;
export declare function codexBase(history: NativeHistory): NativeBase | null;
export declare function validateCodexBase(history: NativeHistory, base: NativeBase): void;
export declare function codexNativeId(history: NativeHistory): string;
export declare function normalizeCodex(entry: NativeEntry, conversationId: string): RecordEnvelope;
//# sourceMappingURL=codex.d.ts.map