Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
Build Kits & Pro
Everything your coding agent needs to build a better version of a top app
Turn an app idea into a plan you can build: understand the evidence, choose what to improve, and give your coding tool a clear specification and build steps.
Start with a free quick prompt for a smaller experiment, or use a Build Kit for a complete project brief. Preview a sample below before choosing.
What's in a kit
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Differentiate and validate
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
- prompts/
- EVIDENCE collects what the store page, screenshots and reviews show is working, and what users complain about.
- SPEC and BUILD_PLAN turn that into features and a phased plan an agent can execute, one phase at a time.
- DIFFERENTIATION is the part that makes the app yours: positioning questions and the angle the original misses.
- screens/ and skills/ cover each screen, monetization, UI style and shipping.
- prompts/ holds the Rork, Vibecode, v0 and Cursor prompts for chat-first builders.
Usage: mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
How it works
- Open any app page and scroll to the Build Kit section.
- Verify your email once with a one-time link. No password; this browser stays signed in.
- Your first Build Kit is free. Unlock it, watch it generate, and it downloads on its own.
- Unzip it, open the folder in your agent, paste the kickoff line from START_HERE.md, and answer the positioning questions.
Make the idea your own
Add an optional note to any kit to tell your coding agent what you would change. Or use Remix to combine features from your favorite apps, with a separately chosen design direction.
Explore the Remix builder and preview your app brief for free. An active Pro plan includes Remix downloads: two ready source kits bundled with your feature selections, design references, and optional note. Your coding agent reconciles them into one build plan.
Free kit unlocks cover individual kits. Downloading a Remix requires active Pro even if you previously unlocked all selected source kits free.
Explore RemixContinue with your AI
Pro includes the entire MCP connection: search apps, continue saved Remix drafts, and read Build Kit files and Remix exports directly in Claude Code or Codex CLI. Active Pro is required for all MCP features.
Connect your AI >Plans
Free
$0
- Every chart, revenue estimate and app evidence page.
- Clone prompt previews for every app.
- Explore Remix and preview your feature selections for free.
- With a verified email: full clone prompts for Rork, Cursor, v0 and Vibecode.
- 1 free Build Kit, once. Re-downloading it later is free.
Pro PRO
$19/month
- Every Build Kit, on every app, as many as you like within the daily generation capacity.
- Remix downloads: combine multiple source kits into a brief for your own app.
- Re-download any kit from your account, with the platform prompts inside.
- MCP access for Claude Code and Codex CLI, including discovery, shared Remix drafts and kit files.
- Follows your verified email: sign in on another device and Pro comes with you.
- Cancel any time in the Stripe billing portal. Access continues through the period you paid for.
Sign in with your email, then continue to secure checkout. Billed monthly by Stripe; no pro-rated refunds for partial months. Paid plan terms · Pro FAQ.
Works with
- Cursor, Claude Code, Codex: open the folder; the agent reads AGENTS.md and BUILD_PLAN.md and asks the positioning questions before writing code.
- Rork, Vibecode, v0: paste
prompts/<tool>.mdas your first message, then BUILD_PLAN.md one phase at a time.
Questions? See the FAQ or email [email protected].