nikitaeverywhere/promptstreak ? reverse-engineered prompt

Build me a small tool that reads my local Claude Code history and turns it into a GitHub style contribution graph for my prompting habits.

I want to be able to run it from the terminal, see a year long heatmap in the console, and have it open a shareable page in the browser. It should stay fully local, nothing uploaded anywhere, and the page should work as a static site with no backend. Let me pick different metrics for the grid, like prompt count, long prompts, time between prompts, overnight handoffs, and a few mood style stats like swearing, thanks, caps lock, and emoji. If you can include a few headline numbers and some short quotes from my prompts, that would be great, but keep them redacted and let me turn them off.

Also make it work with multiple history files or folders, merge duplicates, and support a no browser mode plus JSON output for scripting. If you need to look up current docs online, do that.