import type { Flow } from '../../types/flow.js';
import type { FlowDefinition } from './types.js';
export declare function flowDigest(def: FlowDefinition): Promise<string>;
/**
 * Digest of a live `Flow` for pinning onto a run.
 *
 * Rehydrated flows (`origin: 'definition'`) hash their stashed definition via
 * `flowDigest`. A definition-origin Flow with no stash is corrupted — throw,
 * do not silently fall back. Code-authored flows use the stable marker
 * `code:<flow.name>`: they change only with a deploy, and the digest guard is
 * about STORED redefinition (`addDynamicFlows` replace / catalog publish).
 *
 * sha256 is computed once per Flow object.
 */
export declare function digestForLiveFlow(flow: Flow): Promise<string>;