Fill in all 6 parts and your prompt builds as you type. Then copy it and paste it into Claude.
The prompts from the post, bad to great. Pick one to load it into the builder and swap in your own words.
Act as [a helper]. [What you want done]. It's for [who will read or use it]. [Paste anything Claude should work from] [What's going on]. [Length], [format], [tone]. [Any rule, and why]. Here's one I like: [paste one, or a few]. End with [what the finished answer includes].
The 6 parts are my own grouping of Anthropic's official prompting advice, not an official list. "Act as" is a simple way to set a role; keep roles simple.
Links checked 24 September 2026.