Reverse Spec
From vibe-coded prototype to documented product
A prototype that works is not a product you can grow. The difference is documentation — and recovering it from what you built is now a workflow, not a slog.
Working isn't the same as maintainable
A vibe-coded prototype that runs feels like the finish line. It isn't. The moment you want to bring in a collaborator, plan the next phase, or fix something without breaking three others, you hit the wall: there's no map of how it works.
The prototype proved the idea. Turning it into a product you can grow needs the documentation you skipped to move fast.
Recovering the docs from the build
Reverse Spec reconstructs the missing documentation from your built product: how it actually works as a flow, the user stories it implies grouped into epics, test cases to verify each, and a complete as-built PRD. Your source stays on your machine — it works from a capability map you generate locally.
You go from “it works and only I understand it” to “it's documented and someone else could pick it up.”
The fast path stays fast
This doesn't punish you for moving fast — it lets you keep doing it. Prototype quickly with AI, then document it in a pass when it's worth growing, instead of either skipping docs forever or slowing down to write them upfront.
- A working prototype isn't a maintainable, growable product.
- Reverse Spec recovers the flow, stories, tests, and PRD from what you built.
- You keep the fast build and add the docs when it's worth it.
Document what you built
Cadenly's Reverse Spec turns a working prototype into a documented product you can grow.
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