Why Spec-Centered Development with LLMs?

The fundamental rationale behind prioritizing specifications when using AI for code generation. Explains the benefits compared to purely code-centric or ad-hoc AI usage.

Key Points:

  • Specifications as the stable, human-readable source of truth that transcends specific code implementations.
  • How a clear spec reduces ambiguity and potential LLM “hallucinations” or misinterpretations before code is generated.
  • Improving alignment and communication between different roles (Product, Design, QA, Engineering) by centering discussions on the spec.
  • LLMs as a powerful translation layer between structured human language (specifications) and code.
  • How this approach supports better maintainability and reduces technical debt compared to generating code without a clear, verifiable source.
  • Separation of concerns
  • Managing human+AI collaboration
  • Reducing technical debt early