/**
 * If `dir` is the root of a linked git worktree, return the main checkout
 * root; otherwise null. Pure lookup — never throws (any read/parse failure
 * yields null).
 */
export declare function resolveWorktreeMain(dir: string): string | null;
export declare function resolveProjectRoot(argv: string[], env: Record<string, string | undefined>, cwd: string): string;
//# sourceMappingURL=project-root.d.ts.map