import type { JsonSchema } from '../schema/namespace.js';
import type { SupplyDefinition, ValveKind, ValveTopology } from './types.js';
/**
 * The lightweight artifact a supply declaration emits — JSON Schema plus valve
 * metadata, zero logic and zero transitive producer dependencies. A consumer's
 * faucet imports only this, never the producer silo.
 */
export interface ContractArtifact {
    readonly valve: string;
    readonly kind: ValveKind;
    readonly topology: ValveTopology;
    readonly version: number;
    readonly schema: JsonSchema;
    readonly invariants: readonly string[];
}
/** Project a handoff supply to its contract artifact. */
export declare function emitArtifact<TSource, TPayload>(definition: SupplyDefinition<TSource, TPayload>): ContractArtifact;
//# sourceMappingURL=artifact.d.ts.map