ETIENNE SEAN//BUILD LIBRARY//FOUNDATION // VIBE CODING
FOUNDATION // VIBE CODING

What is vibe coding?
Speed needs direction.

Vibe coding is a way of building software through natural-language collaboration with AI. The useful question is not whether AI can produce code. It is whether the project can stay coherent while the code changes quickly.

Updated Sep 19, 2026Save Our StartupPractical field guide

Vibe coding, without the hype

In a vibe-coding workflow, you describe what you want in natural language and use an AI coding system to help translate that intent into software. The AI may generate components, routes, database changes, tests, fixes or deployment instructions.

The advantage is obvious: the distance between an idea and a working prototype can shrink dramatically. A founder who is not a traditional software engineer can participate much more directly in product creation.

The tradeoff: generation becomes cheap, but project judgment does not. Someone still has to decide what should be built, what should not change, what is currently true and whether the latest result actually works.

Why fast builds drift

AI works from the context available to it. When decisions live across old chats, screenshots, half-finished branches and changing prompts, the model can solve the immediate request while accidentally weakening the whole product.

  • Context drift: an earlier product decision disappears from the working context.
  • Architecture drift: a local fix creates a second pattern instead of extending the established one.
  • Scope drift: every new idea becomes a feature before the core flow is finished.
  • Verification drift: “the code changed” is mistaken for “the product works.”

The stronger loop: intent → decision → proof

A disciplined vibe-coding workflow does not remove the vibe. It gives the creative energy a build sequence.

01Intent: describe the outcome, not only the interface you imagine.
02Decision: state the chosen user flow, constraints and architecture before implementation.
03Increment: build the smallest coherent change that moves the product forward.
04Proof: verify behavior in the rendered product, not only in source code.
05Preserve: record what is now approved so the next AI session starts from truth.

Where vibe coding is especially useful

It works particularly well when the builder can describe the desired behavior clearly and can inspect the result: landing pages, internal tools, prototypes, workflow software, dashboards, directories, small SaaS products and customer-facing web experiences.

Higher-risk systems still need the appropriate human expertise. Security, privacy, legal compliance, financial controls, safety-critical behavior and production deployment approval should never be delegated blindly to generated code.

A better first prompt

Instead of beginning with “build me an app,” establish the project frame first.

PROJECT STARTETIENNE METHOD
I want to build [project].

Before writing implementation code:
1. define the outcome,
2. identify the primary user,
3. map the critical user flow,
4. identify dependencies and risks,
5. propose the smallest useful first increment,
6. define how we will verify that increment works.

Preserve approved decisions before advancing.

That single change moves the AI from improvising a whole product toward managing a sequence of verifiable build decisions.