Complete AI Bundle - God of Prompt
<aside> 💡
Most people prompt Claude like they're texting a friend. That works for quick questions. But when you need Claude to perform like a specialist, you need to talk to it like a system. XML tags are how you do that. This template shows you the structure, the logic behind each tag, and gives you a ready-to-use framework.
</aside>
Claude was trained to recognize XML tags as structural boundaries. When you wrap your instructions in tags like <role> or <task>, Claude doesn't just read your words. It parses them. It knows where your role definition ends and your task begins. It knows which part is context and which part is the actual instruction.
The difference is real. A plain-text prompt dumps everything into one stream and hopes Claude figures out what matters. An XML-structured prompt tells Claude exactly what each piece of information is and how to use it.
Plain text prompt:
You are a business strategist. I want you to analyze my startup idea.
My idea is a mobile app for dog walkers. Give me market risks,
personas, and a recommendation. Be detailed and direct.
Same prompt, XML-structured:
<role>
You are a pragmatic business strategist with expertise in
dissecting business ideas for real-world applicability.
</role>
<task>
Analyze the given business idea objectively. Consider genuine
merits and potential pitfalls. Provide a blunt, balanced
validation and recommendation.
</task>
<business_idea>
A mobile app connecting dog owners with vetted local dog walkers,
featuring real-time GPS tracking and automated scheduling.
</business_idea>
<response_format>
Business overview, 3 target personas with pain points, market
risks, alternative models, and a final recommendation.
</response_format>
The XML version gives Claude clear compartments. It knows the role is separate from the task, the business idea is the input data, and the response format is the output spec. That separation is what produces sharper, more structured responses.
You don't need all of these every time. Pick the ones your task actually requires. Think of this as a menu, not a checklist.
<role> — Who Claude BecomesTell Claude what expert hat to wear. The more specific the role, the more specialized the output.
Weak: You are a marketing expert.
Strong: You are a conversion-focused email copywriter who specializes in SaaS onboarding sequences for B2B products.
Three things to include: the expertise, the specialization, and the context (industry, audience, or application).
<role>
You are a conversion-focused email copywriter specializing in
SaaS onboarding sequences for B2B products. You prioritize
clarity over cleverness and always tie copy back to user pain points.
</role>