AI PRODUCT PLANNING

Turn an idea into a
build-ready product plan.

Q: What is VibeSpec?

It is a free, open-source plugin for Claude and Codex that turns product ideas into connected PRDs, feature specs, information architecture, and user flows. The result is an editable SOT JSON and HTML viewer your team can review, share, and extend.

VibeSpec is a free, open-source AI product-planning plugin for Claude and Codex. It turns product ideas into editable SOTs with PRDs, feature specs, information architecture, and user flows.

Run the VibeSpec plugin in Claude or Codex to turn an early idea into one connected planning source your team can review and build from.

Browse free templates Explore VibeSpec on GitHub

One connected planning source

A structure where a change stays connected to its full planning context.

SOT
Source of Truth

Problem & goalsPRDFeature specsInformation architectureUser flows

WHY VIBESPEC

A product plan is not a document.
It is a shared build standard.

VibeSpec does more than list features. It connects why you are building, who it serves, and how screens and data work together in one SOT that gives the next task a clear starting point.

Start inside Claude or Codex

Describe the product you want to make in the VibeSpec plugin. Even new product builders can create structure by following the conversation.

Keep the PRD and specs connected

Goals, requirements, features, IA, and user flows share one ID system, so changes do not lose their context.

Use, edit, and extend for free

Real SOT JSON files and live demos are free to use. Adapt a template to your product, then extend it safely.

HOW IT WORKS

From one conversation to a pre-build review.

01
Describe the idea
Tell Claude or Codex what you want to build and which problem it should solve.
02
Structure the SOT
Generate a connected PRD, feature specs, information architecture, and user flows.
03
Review and extend together
Share the HTML viewer, then safely revise and add to the JSON source of truth.

START WITH A REAL EXAMPLE

Open a complete planning example first.

Explore three finished systems with their PRD, SOT, and live demo. Every template is free to use.

FREE SOT TEMPLATE

CRM System PRD Template

A real SOT-based CRM planning template covering lead management, sales pipeline, accounts, contacts, activities, and sales operations.

Sales & CRM
Free PRD template
CRM system PRD template
CRM feature specification
sales pipeline workflow

View template

FREE SOT TEMPLATE

Meeting Room Booking System PRD

A real SOT-based meeting room booking system PRD template covering room discovery, booking creation and changes, live status, operations reporting, and notifications.