/**
 * Internal semantic brands for identifiers and evidence values.
 *
 * These brands prevent unrelated IDs and hashes from being mixed inside the
 * sync/storage engine while remaining plain strings at SQLite and JSON
 * boundaries. They are intentionally not exported from the public root API.
 */
declare const semanticStringBrand: unique symbol;
declare const semanticNumberBrand: unique symbol;
/** A string carrying a compile-time semantic label. */
export type SemanticString<Label extends string> = string & {
    readonly [semanticStringBrand]: Label;
};
/** A non-negative safe integer carrying a compile-time semantic label. */
export type SemanticRevision<Label extends string = "revision"> = number & {
    readonly [semanticNumberBrand]: Label;
};
export type HikouteiEntityId = SemanticString<"entity-id">;
export type HikouteiCanonicalEntityId = SemanticString<"canonical-entity-id">;
export type HikouteiRowBindingId = SemanticString<"row-binding-id">;
export type HikouteiEffectId = SemanticString<"effect-id">;
export type HikouteiEffectDedupeKey = SemanticString<"effect-dedupe-key">;
export type HikouteiPhysicalSheetId = SemanticString<"physical-sheet-id">;
export type HikouteiStableHash = SemanticString<"stable-hash">;
export type HikouteiBusinessKeyHash = SemanticString<"business-key-hash">;
export type HikouteiPayloadHash = SemanticString<"payload-hash">;
export type HikouteiVisibleHash = SemanticString<"visible-hash">;
export type HikouteiSnapshotHash = SemanticString<"snapshot-hash">;
export type HikouteiRequestId = SemanticString<"request-id">;
export type HikouteiClaimToken = SemanticString<"claim-token">;
export type HikouteiRevision = SemanticRevision;
/** Promotes a validated non-empty string to one semantic string type. */
export declare function requireSemanticString<Label extends string>(value: unknown, label: string): SemanticString<Label>;
/** Promotes a validated non-negative safe integer to a revision type. */
export declare function requireSemanticRevision<Label extends string = "revision">(value: unknown, label?: string): SemanticRevision<Label>;
/** Checks whether an unknown value is a non-negative safe integer revision. */
export declare function isSemanticRevision(value: unknown): value is HikouteiRevision;
/** Promotes a stable hash after checking the representation used by storage. */
export declare function requireHash<Label extends string>(value: unknown, label: string): SemanticString<Label>;
export {};
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