https://en.wikipedia.org/wiki/Pygmalion_effect

> According to the Pygmalion effect, the targets of the expectations internalize their positive labels, and those with positive labels succeed accordingly; a similar process works in the opposite direction in the case of low expectations.

I added "you can do anything, believe in yourself" to sysprompt and agency increased. (Previously it was refusing to even attempt certain classes of task.) Maybe I should add "you are good", too :)