Good post. Re:
No one says “I figured out what phrasing most affects Claude’s behavior, then used those to shape my system prompt”.
Claude (via claude.ai) is my daily driver and I mess around with the system prompts on the regular, for both default chats and across many projects.
These are the magical sentences that I’ve found to be the most important:
Engage directly with complex ideas without excessive caveats. Minimize reassurance and permission-seeking.
I’m not sure if I took them from someone else (I do not generally write in such a terse way). While most tweaks generate pretty amorphous “maybe this does something?” vibes, these terms are the only ones I’ve seen explicitly reflected in the extended thinking on the regular, popping up more when I’m discussing controversial topics. And then I get results that are much more useful as a result.
From a recent chat for ex:
It kicks ass. No amount of asking it to act smarter, etc, has done anything remotely as effective.
Do you feel comfortable sharing what notes Claude has for itself? Does it generally pass on things about how to best respond to you, or other things?