/**
 * Fail-closed readers shared by the application primitives' codecs (WFT-84, WFT-85).
 *
 * Every reader raises `PersistedDataCorruptError` for the key being decoded
 * rather than coercing a damaged value into something plausible. The record
 * codec and the index codec are built from these.
 *
 * @module core/application-primitive-codec
 */
export declare function isRecordObject(value: unknown): value is Record<string, unknown>;
export declare function fail(key: string): never;
export declare function readString(source: Record<string, unknown>, field: string, key: string): string;
export declare function readOptionalString(source: Record<string, unknown>, field: string, key: string): string | undefined;
export declare function readInteger(source: Record<string, unknown>, field: string, key: string): number;
/**
 * Admission requires these to be positive, so a persisted zero is corruption:
 * a zero visibility timeout would hand out a lease that is reclaimable the
 * instant it is granted, and zero attempts would deliver work that is already
 * exhausted.
 */
export declare function readPositiveInteger(source: Record<string, unknown>, field: string, key: string): number;
export declare function readOptionalInteger(source: Record<string, unknown>, field: string, key: string): number | undefined;
export declare function readVersion(source: Record<string, unknown>, key: string, expected?: number): void;
/**
 * Rebuild the key a record's own identity names. Key construction percent-encodes
 * each component and throws a raw `URIError` on an unpaired surrogate; a
 * persisted identity that malformed is corruption and must surface as such.
 */
export declare function ownKey(build: () => string, key: string): string;
/**
 * A persisted command id is handed straight to key construction by `claim()`,
 * `list()`, the waits, and idempotency lookups; an unpaired surrogate or an
 * oversized value there would escape as a raw `URIError` rather than the
 * corruption it is.
 */
export declare function readIdentifier(value: unknown, key: string): string;