[nachocoll]

This is genuinely good advice, and the TDD approach is underrated in vibe coding contexts. Tests give the AI agent a deterministic verification loop — it can self-correct against actual specifications rather than guessing from prompts. TypeScript's type system doing the same for the frontend is the same instinct.

Both approaches map to a principle from the Agile Vibe Coding Manifesto (https://agilevibecoding.org): "Systems remain deterministic and verifiable — software behaves predictably and is verified through tests." The manifesto extends Agile principles to AI-assisted environments, and this pair — typed frontend + TDD backend — is about as robust a foundation for vibe coding as you can get.

The other piece worth adding: the fact that you're writing the tests (expressing intent) and letting the bot implement to green is exactly right. Traceable intent is what separates maintainable vibe-coded projects from ones that collapse after a few iterations.