import { type LlmMutatorConfig } from '../config';
/**
 * Stryker's supported config file names, in probe order, mirroring
 * `@stryker-mutator/core`'s `SUPPORTED_CONFIG_FILE_NAMES`
 * (`{'',  '.'} × {.conf, .config} × {json, js, mjs, cjs}`). Kept as a local
 * constant rather than deep-imported so the reader does not pull Stryker core
 * (which is Node-only and would break `bun test`).
 */
export declare const SUPPORTED_CONFIG_FILE_NAMES: readonly string[];
/** The outcome of {@link readTargetConfig}: the parsed config + its source file. */
export interface ReadTargetConfigResult {
    /** The fully-defaulted, parsed `llmMutator` block. */
    config: LlmMutatorConfig;
    /**
     * The absolute path to the config file that was read, or `undefined` when no
     * config file was found (then `config` is the all-defaults parse of `{}`).
     * The driver forwards this to Stryker as `configFile`.
     */
    configFilePath?: string;
    /**
     * The target's own `excludedMutations` list, verbatim, when the config file
     * carries an array of strings under that key; omitted otherwise (absent key,
     * any other shape, or no config file). `plan.ts` decides what to do with it.
     */
    excludedMutations?: readonly string[];
}
/**
 * Locate the target stryker config file within `projectDir`, honoring an explicit
 * override. Returns the absolute path, or `undefined` if none exists.
 *
 * @param projectDir The project root to probe.
 * @param configFileOverride An explicit `--config-file` path (relative paths
 *   resolve against `projectDir`).
 */
export declare function resolveConfigFilePath(projectDir: string, configFileOverride?: string): Promise<string | undefined>;
/**
 * Read and parse the target's `llmMutator` config block.
 *
 * Locates the config file (or uses the override), loads its options object,
 * extracts `options.llmMutator ?? {}`, and parses it with
 * `llmMutatorConfigSchema`. When NO config file is found, returns the all-defaults
 * parse of `{}` (heuristics-on / dynamicLLM-off) with no `configFilePath`.
 *
 * @param projectDir The project root.
 * @param configFileOverride An explicit `--config-file` path (optional).
 * @returns The parsed config and the resolved config file path (if any).
 */
export declare function readTargetConfig(projectDir: string, configFileOverride?: string): Promise<ReadTargetConfigResult>;