Hacklone/lazy-spec-kit ? reverse-engineered prompt

Build me a simple command line tool that sets up a spec driven coding workflow for an AI assistant.

I want one install script that works on macOS, Linux, and Windows Git Bash, and puts a lazyspeckit command on the path. After setup, it should be able to initialize a project in the current folder, ask for a short project constitution if one does not exist, and then help me use a single prompt like /LazySpecKit build this feature to kick off the full flow.

The tool should handle the boring parts for me, like planning, implementation, validation, and a final review step that checks the code from different angles and fixes obvious problems automatically. It should also support a hands off mode that auto answers clarification questions when it is confident, and an option to skip the review if I want it faster.

Please include clear setup docs, sensible defaults, and make it easy to use with common AI coding tools like Copilot or Claude Code. If you need to check current docs or best practices online, go ahead and do that.