import type { ExecOptions } from 'node:child_process';
type ExecAsyncOptions = ExecOptions;
export declare function readStdin(timeoutMs?: number): Promise<string>;
export declare function findProjectRoot(startDir?: string): Promise<string>;
export interface PackageManager {
    name: 'npm' | 'yarn' | 'pnpm';
    exec: string;
    run: string;
    test: string;
}
export declare function detectPackageManager(dir: string): Promise<PackageManager>;
export interface ExecResult {
    stdout: string;
    stderr: string;
    exitCode: number;
    timedOut?: boolean;
    signal?: string | null;
    killed?: boolean;
    durationMs?: number;
}
export declare function getExecOptions(options?: ExecAsyncOptions, command?: string): ExecAsyncOptions;
export declare function execCommand(command: string, args?: string[], options?: {
    cwd?: string;
    timeout?: number;
}): Promise<ExecResult>;
export declare function formatError(title: string, details: string, instructions: string[]): string;
export declare function checkToolAvailable(tool: string, configFile: string, projectRoot: string): Promise<boolean>;
export declare function executeCommand(command: string, cwd?: string): Promise<{
    stdout: string;
    stderr: string;
}>;
export declare function fileExists(filePath: string): Promise<boolean>;
export declare function readJsonFile<T = unknown>(filePath: string): Promise<T>;
export declare function writeJsonFile(filePath: string, data: unknown): Promise<void>;
export declare function findFiles(pattern: string, directory: string): Promise<string[]>;
export declare function getFileModTime(filePath: string): Promise<Date>;
export declare function ensureDirectory(dirPath: string): Promise<void>;
export declare function parseStdinPayload(): Promise<unknown>;
export declare function extractFilePaths(payload: unknown): string[];
export declare function formatDuration(ms: number): string;
export declare function formatTypeScriptErrors(result: ExecResult, command?: string): string;
export declare function formatESLintErrors(result: ExecResult): string;
export declare function formatBiomeErrors(result: ExecResult): string;
export declare function formatTestErrors(result: ExecResult): string;
export interface ExtensionConfigurable {
    extensions?: string[] | undefined;
}
export declare function createExtensionPattern(extensions: string[]): RegExp;
export declare function shouldProcessFileByExtension(filePath: string | undefined, config: ExtensionConfigurable, defaultExtensions?: string[]): boolean;
export {};
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