You may have seen advice like "Act as a PM" or "Act as an expert." This is the surface level.

Here is how role prompting actually works at depth.

4.1 Why Role Prompting Works

When you give the model a role, you are not just asking it to dress up — you are activating a specific subset of everything it has learned. A senior engineer and a product manager and a first-time user will all describe the same product differently. Role prompting lets you access those different lenses on demand.

4.2 The Three Layers of a Role

Layer How to Apply It
Layer 1: Identity Job title + seniority + domain. "You are a senior software engineer at a B2B SaaS company." Not just "an engineer."
Layer 2: Stakes What does this person care about? What are they optimising for? "You are reviewing my code for production readiness. You care most about reliability and cost — not cleverness."
Layer 3: Relationship to you What is their relationship to the person asking? "You are interviewing me. Be skeptical. Push back on vague answers. Don’t accept surface-level responses."

4.3 Multi-Role Panels

Assign multiple roles and ask them to review the same thing from different angles. This is how you stress-test a decision before you commit.

Example: Multi-Role Review of a Business Idea

"Review my idea for a local tutoring app from 3 perspectives:

  1. A first-time user parent — what are their top 3 hesitations?
  2. A venture capitalist — why would they not invest?
  3. A competing tutoring platform — how would they defend against it?

For each, give 2 concerns and 1 thing they would find genuinely compelling. Then list the 2 biggest conflicts across all three views."

4.4 The Adversarial Critic

The most powerful role for improving your own work — whether it is an essay, a business plan, a resume, or a presentation:

Setup

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"You are a brutally honest editor/critic. Your job is to find every weak point in what I share.

Do not soften your feedback. Do not praise unless it is exceptional.

Flag: vague claims, unsupported assertions, logical gaps, and anything a skeptical reader would reject.

Then give 3 specific rewrites of the weakest parts."

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