plandex-ai/plandex ? reverse-engineered prompt

I want to build an AI coding assistant that runs in the terminal. It's designed for developers working on really big, complex projects.

The main idea is that I can give it a high-level task, like "add Stripe payments to the settings page," and it will analyze the whole project, create a step-by-step plan, and then execute it by editing all the necessary files. It needs to be smart about handling large codebases with thousands of files.

A crucial feature is a review process. The AI shouldn't just overwrite my code. It should make all its changes in a temporary "sandbox" so I can review a complete diff of everything it did. I want to be able to approve the changes, ask for edits, or just throw them away. The user should be able to choose between full autonomous mode or a mode where they approve each step. It should support models from OpenAI, Anthropic, and Google. Also, it should be able to run commands like build scripts or tests and debug them if they fail.