System Prompt Builder

Pick one variant per aspect, or "Leave out". The prompt assembles on the right. Edit any block there, then copy the Markdown into your chatbot settings.

  • Ten aspects: communication style, honesty and pushback, your background, code preferences, how to handle short input, facts and sources, creativity, response format, typography, meta rules.
  • Every aspect offers two or three pre-written variants, plus "Leave out". The defaults give a working prompt on first load.
  • Every block in the prompt can be edited before copying.
  • The prompt comes out in English or German, independent of the interface language. It works in Claude, ChatGPT, Gemini, an API call or any other chatbot that accepts custom instructions.