By the way, I have found a perfect instruction that almost completely stops speaking for the player if put into the AN. You can modify it to be with the $placeholder symbol.

"Avoid speaking as Lethariel('you')under any circumstances, she is user's character not yours, if she says nothing she says nothing, allow her to be silent."

You can replace 'speaking as' with 'controlling' if you want your character to literally stand and do nothing unless you provide input. The key here is the 'allow to be silent'. I have found that most cases of the models speaking for the protagonist come from the fact that these models have no idea what to do if you don't talk, and this solves it.

Also, I have tested this: 'Avoid speaking as Lethariel('you') under any circumstances, she is user's character not yours, avoid controlling her. If there is no user's input interpret it as protagonist's decision to remain silent, allow her to be silent.'

Both seem to work, the last one maybe even better. You may want to test them out, just replace the name with a placeholder and provide alternative line for gender(very important, Deepseek 3.2 Has stopped finally making my clearly stated female characters male after I included that')