Lab · Prompt Builder

Build a better prompt in 60 seconds.

Fill in the blocks and watch a structured Claude prompt assemble itself, scored live against the habits that consistently produce better answers.

Open the builder

Build

Guidelines
Prompt score0/100

    Your prompt

    				
    
				
    
		
    
				
    
					
    What you’ll learn
    Why this structure works.
    Role
    Set the expertise
    A role primes vocabulary, depth and judgment for the whole answer.
    Tags
    Separate data from instructions
    XML-style tags stop the model confusing your material with your request.
    Format
    Define done
    A clear output shape removes guesswork and makes results reusable.
    Guardrails
    Reduce hallucinations
    Permission to say “I don’t know” and quoting sources keep answers honest.
    				
    
				
    
		
    
				
    
					
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