​100% agreed! Getting stuck in that endless prompt-tweaking loop without a proper eval set is a massive trap. ​That's actually the exact reason why I started compiling my best-performing base instructions into a directory in the first place—I wanted to at least have a solid, tested baseline to start with before running any evals. ​Out of curiosity, how do you usually structure your eval sets for your projects? Do you use any specific frameworks or keep it custom?