anthropics/claude-code ? reverse-engineered prompt

I want to build an AI coding assistant that runs in my terminal. The idea is that it should be aware of my entire codebase so it has context for my requests. I want to be able to talk to it in natural language to get things done, kind of like an agent.

For example, I should be able to ask it to explain a complex function, run the tests for a specific file, or handle my git workflow by staging files and writing a good commit message for me. It should be able to figure out the commands and execute them. It should also have a way to add plugins to extend its functionality with new commands.

Please make it easy to install on Mac, Windows, and Linux, ideally with a simple curl or powershell script. Something like the Claude Code tool is a good reference.