export interface RuntimePlatform {
    readonly name: string;
    readonly baseEnv: Record<string, string | undefined>;
    createRuntimeId(): string;
    cwd(): string;
    joinPath(...segments: string[]): string;
    resolvePath(...segments: string[]): string;
    dirname(filePath: string): string;
    fileExists(filePath: string): boolean;
    readTextFile(filePath: string): string;
    writeTextFile(filePath: string, content: string): void;
    ensureDir(dirPath: string): void;
    getEnv(key: string): string | undefined;
    setEnv(key: string, value: string | undefined): void;
    fetch(input: string | URL | Request, init?: RequestInit): Promise<Response>;
}