import type { SpecShieldConfig } from "./config.js";
import type { Logger } from "./logger.js";
export interface ApiClientOptions {
    /** Total attempts including the first (retries = maxAttempts - 1). */
    maxAttempts?: number;
    /** Base backoff in ms; delay grows linearly per attempt. 0 disables sleeping (tests). */
    baseDelayMs?: number;
    /** Injectable fetch + sleep for tests. */
    fetchImpl?: typeof fetch;
    sleepImpl?: (ms: number) => Promise<void>;
}
/**
 * Thin HTTP adapter over the SpecShield backend `/api/intelligence/**` endpoints.
 * It holds NO diff/risk logic — every result comes from the backend.
 *
 * Contract:
 *  - sends `X-Api-Key` on every request;
 *  - retries only transient 429 / 5xx / network / timeout, up to `maxAttempts`;
 *  - never retries 4xx validation/auth errors;
 *  - enforces `SPECSHIELD_TIMEOUT_MS`;
 *  - throws {@link SpecShieldError} whose message never contains the spec, the
 *    API key, or the request body.
 */
export declare class SpecShieldApiClient {
    private readonly config;
    private readonly logger;
    private readonly maxAttempts;
    private readonly baseDelayMs;
    private readonly fetchImpl;
    private readonly sleep;
    constructor(config: SpecShieldConfig, logger: Logger, options?: ApiClientOptions);
    /** POST a JSON body and return the parsed JSON response. */
    post<T>(path: string, body: unknown): Promise<T>;
    private backoff;
}