charmbracelet/crush ? reverse-engineered prompt

Build me a command-line tool that acts as my personal AI coding assistant. I want it to run right in my terminal, letting me chat with different AI models. I should be able to plug in my own API keys from places like OpenAI, Anthropic, or Groq, and ideally even switch between them mid-conversation without losing my context.

The most important feature is that it needs to be aware of my project. It can't just be a generic chatbot; it needs to understand my actual code to give smart, relevant answers, maybe using the same kind of language intelligence that a code editor does. I'll also need to manage multiple, separate chat sessions for different tasks or projects. The interface should be a really polished and user-friendly TUI that works on Mac, Linux, and Windows.