Techniques
XML Tags Are the New Markdown: Why Closed Delimiters Beat Free-Form Prompts
The delimiter strategy that Claude, GPT, and Gemini all respond to better than plain English sections
Brian Gagne
TechniquesStop Copy-Pasting Prompts Between Models: Format-Native Prompting for Claude Opus 4.7, GPT-5.5, and Gemini 3.1
Each frontier model parses structure differently: XML, JSON, or markdown. Match the format, and output quality jumps measurably.
Brian Gagne