michaelw9999/antigravity-cli — reverse-engineered prompt

Build me a small Python command line tool for working with Google Antigravity task files on my computer. It should be unofficial and local only, reading the task folders under ~/.gemini/antigravity/brain/.

I want to list all tasks with a readable number, name, version, date, and GUID. Then I should be able to open a task by number or GUID, see its checklist, see the status of completed, in progress, and todo items, and view older versions of task artifacts like the task, implementation plan, and walkthrough.

Please also let me create a new task, update a subtask status, update artifact metadata with a summary and timestamp, save a workspace file into a task as a versioned artifact, and print a specific backup version when I need to recover something.

Make it easy to run from the terminal, with clear help text, friendly error messages, and safe handling so it does not overwrite old artifact versions without making backups.