Using Information Types to Build and Evaluate Prompt Structures

This post is the reference handout for my ConVex 2026 presentation, “Evidence-Based Prompt Design for AI Writing Systems,” and a follow-up presentation later this week at Information Energy 2026. If you weren’t in either room, everything here is designed to stand on its own.When an AI system produces a bad answer, most practitioners rewrite the prompt. Sometimes that fixes it. More often, the problem is somewhere else entirely, and without a diagnostic framework, you’re guessing.