Role prompting assigns a persona to the AI, which shapes its vocabulary, knowledge focus, and tone.

Examples That Work

• "Act as a senior software architect with 20 years of experience"
• "You are a Harvard professor of economics"
• "Respond as a friendly personal trainer"
• "You are a skeptical venture capitalist reviewing a pitch"

Why It Works

The role activates relevant knowledge and frames how the AI weighs different considerations — a doctor frames advice differently than a fitness influencer.

Reference:

Role prompting guide

https://docs.anthropic.com/en/docs/build-with-claude/prompt-engineering/overview