/**
 * The stale-generation and compatibility refusal gates
 * `WorkflowCatalog.activateCandidate()` checks before ever attempting its
 * CAS write — split out of `workflow-catalog.ts` to protect that file's
 * size against the repository's 500-line implementation-file ceiling,
 * mirroring how `storage-io.ts`/`codec.ts`/`removal.ts` already sit
 * alongside it rather than inline.
 *
 * @module core/catalog/activation-guards
 */
import { type WorkflowCompatibilityPolicy } from '../contract/compatibility.ts';
import type { WorkflowRevisionManifest } from '../contract/types.ts';
import type { WorkflowCatalogActivationResult, WorkflowCatalogActivePointer, WorkflowRevisionRecord } from './types.ts';
/** Options accepted by {@link import('./workflow-catalog.ts').WorkflowCatalog.activateCandidate}. */
export type ActivateCandidateOptions = {
    /** The generation this caller last observed; refused with `stale-generation` if it disagrees with the durable pointer. */
    expectedGeneration?: number;
    /** Compatibility policy; defaults to {@link DEFAULT_WORKFLOW_COMPATIBILITY_POLICY}. */
    policy?: WorkflowCompatibilityPolicy;
};
/**
 * The stale-generation and compatibility gates `activateCandidate` checks
 * before ever attempting a write. Returns the refusal result when the
 * candidate should be rejected, or `undefined` when it may proceed to the
 * CAS write. `resolveEntry` is threaded through rather than a `WorkflowCatalog`
 * instance, so this module never needs to import the class itself.
 */
export declare function refuseIncompatibleOrStaleCandidate(resolveEntry: (name: string, revision: string) => Promise<WorkflowRevisionRecord | undefined>, name: string, candidateManifest: WorkflowRevisionManifest, currentPointer: WorkflowCatalogActivePointer | null, options?: ActivateCandidateOptions): Promise<WorkflowCatalogActivationResult | undefined>;