Build what you mean,
not what you type.

Kestral gives Claude Code a complete blueprint before it writes a single line. Map your screens, schema, and services visually — then hit build.

Coming Soon macOS

Claude Code detected automatically on install.

Kestral app — wireframe canvas showing screen layouts and component annotations

The problem

Claude Code is powerful.
But it builds what you say,
not what you see in your head.

Vague prompts, vague output

Describing a complex app in a chat message loses 80% of the detail that matters.

Constant back and forth

Every wrong assumption means another round of corrections, re-runs, and lost context.

No shared ground truth

Claude sees words. You see screens, schemas, and data flows. That gap costs hours.

How it works

Map your frontend

Draw your screens on a wireframe canvas. Label components, annotate interactions, define the flow between screens.

Define your backend

Describe your data models in DBML — the same language dbdiagram.io uses. Watch your schema visualise in real time as you type.

Pick your services

Toggle on Railway, Clerk, Supabase, Stripe, S3 and more. Kestral knows how to wire each one up — no extra prompting needed.

<!-- blueprint.context.xml — auto-generated · 2.4kb -->

<project name="elysium-booking" stack="next+node">
  <goals>
    <primary>short-stay booking marketplace</primary>
    <audience>hosts + travelers</audience>
  </goals>

  <wireframe screens="7">
    <screen id="landing">
      nav · hero · 3-card-grid · footer
    </screen>
    <screen id="listing-detail" />
    <screen id="checkout" />
  </wireframe>

  <backend>
    <model name="User" fields="5" />
    <model name="Booking" fields="6" />
    <model name="Listing" fields="6" />
    <route method="POST" path="/api/bookings" />
    <!-- + 6 more routes -->
  </backend>

  <services>
    <use name="Clerk" for="auth" />
    <use name="Supabase" for="db" />
  </services>
</project>

This is what Claude Code receives. Not a prompt — a spec.

What you get

Wireframe canvas

Draw screens, not sentences. Excalidraw-powered.

Live schema editor

DBML with real-time relationship diagram.

Services registry

12+ integrations with pre-built wiring context.

Blueprint compiler

Everything compiles to a structured XML spec.

Local execution

Claude Code runs on your machine. Your API key, your code.

Git-ready output

Full project scaffolded, ready to push.

Build what you mean,not what you type.

Claude Code is powerful.But it builds what you say,not what you see in your head.