Sometimes the session is polluted
If the model keeps violating the same rule after correction, the session may be losing the attention battle. More reminders can make the window larger without improving behavior. The recovery pattern is capture, reset, reload, continue.
Capture before reset
Before clearing or restarting, write the live truth into a durable note: live rules with source, current state, and any failed-attempts that explain a real gotcha. The reset deletes session memory; the captured note becomes the seed for the new session.
Do not preserve poison out of sentiment
Old failed attempts are useful if they explain the bug. They are poison if they merely repeat the wrong instruction. Keep evidence, not noise. The temptation to 'preserve everything in case it helps' is exactly what makes the next session also rot.
When a session is polluted, more prompting can be the problem, not the cure.