The Free Claude Skill That Writes the Prompt So You Stop Re-Prompting
A free MIT licensed Claude skill that turns your messy paragraph into a prompt with an output spec, a file scope and a stop condition, so you get it right on attempt one
What this actually is
Prompt Master is a Claude skill. You describe what you want in whatever shape it comes out of your head, and it hands back a single clean prompt you can paste into any AI tool. It is free, MIT licensed, and it installs from a browser in about a minute with no terminal.
The thing worth understanding before you install it is what it is optimising for. Most prompt tools make prompts longer. This one makes every word load bearing, which is the repo's own phrase, and then strips the rest. The output is usually shorter than what you would have written by hand and far more specific.
- Repo: github.com/nidhinjs/prompt-master
- 11,415 stars, MIT licensed, verified 19 August 2026
- Works with Claude, Claude Code, ChatGPT, Gemini, Cursor, Windsurf, Copilot, Midjourney and about thirty more
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