The library

Every prompt, annotated

Real, published system prompts from shipping AI products — each with source attribution and notes on what makes it work.

2 prompts Sort

Dia

system prompt

Dia Browser AI - Chat Assistant System Prompt

System prompt for Dia, the in-browser AI assistant from The Browser Company. It defines a rich custom markup vocabulary (Simple Answers via <strong>, …

role definition custom markup protocol constraint setting

224 3.9k 2.6k words

Cursor

chat prompt

Cursor — Chat Prompt (GPT-4o)

An earlier, lighter Cursor chat-mode system prompt for a GPT-4o pair-programmer that biases toward answering questions rather than editing. It specifi…

role definition tool-use protocol output formatting

117 6.7k 2.1k words