import type { ContextBuildRequest, ContextResult, ContextType } from '../types/context.js';
import { ContextContractService } from './context-contract-service.js';
import type { ContextFetcher } from '../context/fetchers/fetcher.js';
/**
 * ContextPolicyEngine — Ticket 010
 *
 * Assembles a ContextResult for a build request by:
 *  1. Loading the ContextContract from the contract service.
 *  2. Calling registered fetchers for each required + optional requirement.
 *  3. Scoring each block.
 *  4. Applying the contract's ordering policy.
 *  5. Enforcing the token budget via the truncation policy.
 *  6. Computing a deterministic fingerprint.
 */
export declare class ContextPolicyEngine {
    private readonly contractService;
    private readonly fetchers;
    constructor(contractService: ContextContractService, fetchers: Map<ContextType, ContextFetcher>);
    /**
     * Build a context result for the given request.
     *
     * @throws {NovelError} with code CONTEXT_CONTRACT_NOT_FOUND when the
     *   contractId does not resolve to a known contract.
     */
    buildContext(request: ContextBuildRequest): Promise<ContextResult>;
}
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