Stop Writing Prompts. Start Writing Specs.

Microsoft Developer explains why treating AI interactions as “specs” (with clear requirements and tests) is more reliable than ad-hoc prompting, and how to structure inputs and evaluation so LLM-powered features behave predictably in real applications.

Overview

The video argues for shifting from one-off prompt writing to writing clear, testable specifications for LLM behavior. It focuses on making AI features more predictable by defining requirements, constraints, and success criteria up front, then validating outputs against those criteria.