import type { TrazumConfig } from './config-schema.js';
import type { PricingCatalogue } from './pricing.js';
/**
 * Finding and reading `trazum.config.json`.
 *
 * Split from the schema in `config-schema.ts` because this is the only half
 * that touches the filesystem, and the split is load-bearing: `apps/web`
 * bundles `@trazum/core` for the browser, where a single `node:fs` import
 * anywhere in the graph fails the build. Reachable only through
 * `@trazum/core/node`, which the CLI imports and the web app does not.
 */
export interface LoadedConfig {
    config: TrazumConfig;
    /** Absolute path the config came from, or null when none was found. */
    path: string | null;
    /**
     * Prices to work from: the bundled catalogue, with the config's `pricing`
     * overlay applied if it named one. Always present, so a caller never has to
     * decide which of two sources to use.
     */
    pricing: PricingCatalogue;
    /** Absolute path the overlay came from, or null when there was none. */
    pricingPath: string | null;
}
export interface LoadConfigOptions {
    /** Directory to start the upward search from. Defaults to the process cwd. */
    from?: string;
    /**
     * An explicit path. Given one, no search happens and a missing file is an
     * error: somebody who names a config file is not asking for defaults.
     */
    explicit?: string;
}
/**
 * Finds and reads the nearest config file.
 *
 * The search walks **upward from the working directory**, which is what makes
 * `cd packages/thing && trazum check prompt.txt` pick up the repository's
 * config. It stops at the first hit, at a directory containing `.git`, or after
 * `MAX_CONFIG_SEARCH_DEPTH` levels — a bound rather than an unlimited climb to
 * the filesystem root.
 *
 * Finding nothing is not an error: the tool is useful with no config at all,
 * and returning `{config: {}, path: null}` lets the caller say so.
 */
export declare function loadConfig(options?: LoadConfigOptions): Promise<LoadedConfig>;
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