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Rationale is an AI workspace for product teams. You bring your Figma designs and PRD together in one place, and Rationale audits the gap between what was specced and what was designed — surfacing missing states, edge cases, and contradictions before they become engineering surprises. When everything checks out, export a clean handoff doc in one click.

Quick Start

Create your first project and run your first audit in under five minutes.

Core Features

Explore the AI audit, design canvas, version control, and handoff export.

Workflows

Choose the right workflow: watch for drift, generate a PRD, or brief your designer.

Integrations

Connect Figma, Notion, Linear, and Slack to your workspace.

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How Rationale works

Rationale gives product teams three ways to work, depending on where you are in the process:
1

Bring your sources

Import your designs from Figma and your spec from Notion, a file upload, or a URL. Rationale reads both.
2

Run an audit

Rationale cross-references your PRD text against your Figma screens pixel by pixel, flagging gaps, missing logic, edge cases, and contradictions in plain language.
3

Act on findings

Accept or dismiss each finding. Push confirmed gaps to Linear as issues, leave comments in Figma, or send a summary to Slack.
4

Export the handoff

Once the audit passes, export a clean Word document with requirements, resolved gaps, and acceptance criteria that engineering can build from.

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Pick your workflow

Watch for drift

Link a Figma file and a PRD. Rationale re-audits every time Figma is saved.

Designs → PRD

Drop a Figma file and let Rationale write the requirements doc for you.

PRD → Brief

Paste your spec and get a screen-by-screen design brief, ready for your designer.