import type { RuntimeManifestIdentity, VerifiedRuntimeManifest } from './runtime-manifest.js';
import type { RuntimePromotionFilesystemCapabilityState } from './runtime-promotion-filesystem-authority.js';
import type { StablePromotionDirectory } from './runtime-promotion-filesystem-io.js';
/** Validate one optional manifest identity against its journal projection. */
export declare function assertRollbackIdentity(recorded: RuntimeManifestIdentity | null, expected: RuntimeManifestIdentity | null, description: string): void;
/** Remove an operation-created runtime stage after proving its exact ownership. */
export declare function removeCreatedParentStage(state: RuntimePromotionFilesystemCapabilityState, parent: StablePromotionDirectory, expected: RuntimeManifestIdentity | null): boolean;
/** Remove an installed runtime exactly once and settle its rollback marker. */
export declare function rollbackInstalledState(state: RuntimePromotionFilesystemCapabilityState, parent: StablePromotionDirectory, installed: RuntimeManifestIdentity, backup: RuntimeManifestIdentity | null): boolean;
/** Restore or validate the exact pre-install destination backup. */
export declare function restoreDestinationBackup(state: RuntimePromotionFilesystemCapabilityState, parent: StablePromotionDirectory, expected: RuntimeManifestIdentity): {
    readonly restored: VerifiedRuntimeManifest;
    readonly changed: boolean;
};
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