The single highest-impact prompting technique

XML Tag Generator

Claude is explicitly trained to recognize XML tags. Using them removes ambiguity, separates context from instructions, and allows you to create complex, multi-step prompts that yield deterministic results.

Fill in your prompt sections

<context>Context

<instructions>Instructions

<constraints>Constraints

<example>Example

<output_format>Output Format

Generated XML

prompt.xml

// Your generated XML will appear here…
// Start filling in the fields on the left.

Why use XML tags?

• Prevents Claude from confusing instructions with injected context code.
• Allows you to reference specific sections later (e.g., "Refer to the variables defined in <context>...").
• Makes complex prompts modular and much easier for humans to read and maintain.

Common Tags