fizzbee logo fizzbee
The AI Requirements Engineer between your idea and your coding agent

Your coding agent builds what you tell it.

FizzBee helps you tell it what you mean.

Start with your idea → See a sample project →
Two ways to build with coding agents. Left column, KEEP PROMPTING: try a longer prompt, add more context, tell it what NOT to do, switch to a more expensive model, open a new chat and try again. Right column, USE FIZZBEE: answer a few questions, then prompt once.
How it works
Your idea
(prompt)
Requirements Engineering
Elicitation
Answer key questions
FizzBee uncovers the decisions your prompt leaves unspecified.
Analysis
Review contradictions and gaps
FizzBee uses formal verification to uncover contradictions and requirement gaps.
Validation
Explore important scenarios
FizzBee generates key scenarios to confirm the specification matches your expectations.
  • Precise
  • Verified
Product
Specification
Coding Agent
Why it works

Not another AI planner.

Formal verification catches contradictions.

FizzBee uses formal verification to systematically uncover contradictions and requirement gaps before any code is written.

What isn't specified gets guessed.

Every prompt leaves decisions unmade — and your agent will make them silently. You ship a working app; not the one you wanted. FizzBee helps you decide before that happens.

Even simple apps have hidden decisions.

Terminate a manager — who takes their team, and their pending leaves? Delete a wiki note — what happens to notes that linked to it? Remove someone from a shared expense when their balance isn't zero? FizzBee found these — before code was written.

The spec is for your coding agent, not you.

No 30-page PRD to review. You answer the questions; your agent reads the specification; you get the code.

See it in action

See how one prompt became a verified specification.

Every question FizzBee asked. Every requirement gap it uncovered. Every decision the founder made.

Open the sample project →
Specification Driven Development

Most Specification-Driven Development tools generate documents for humans. FizzBee generates specifications for machines to analyze and coding agents to build from. Same formal verification technology behind fizzbee.io. Requirements engineering is the first stage of Specification-Driven Development.

Ship the right thing. First try.

One sentence in. A verified specification out. Then prompt once.

Get started →