krzemienski/claude-code-builder ? reverse-engineered prompt

Build me a Python CLI tool that can take a plain markdown product spec and turn it into a real software project with minimal hand holding.

I want it to read a spec file, figure out the requirements, plan the work, generate the code, create tests, and leave me with a usable project in an output folder. It should also have commands to analyze a spec without building, validate a spec, initialize a new project, check the setup, and resume a build if something stops halfway through.

Please make it show clear progress while it runs, keep track of costs and token usage, and save checkpoints so it can continue later. It should work well with Claude’s official SDK and support the kind of file and memory integrations that help an AI agent keep context across a big build.

If you need to look up current docs online while wiring things up, go ahead.