Template pack 01
Add Stripe Payments to Your Vibe-Coded App
Prompts, agent rules and a launch checklist to add Stripe Checkout and webhooks to an AI-built app without the usual traps.
$15 USD
One-time. Digital download (zip of Markdown files). 14-day refund policy.
What is inside
- A master agent prompt that walks your AI tool through Stripe step by step: Payment Links vs Checkout Sessions, products and prices, checkout, success and cancel pages, webhooks with signature checks and idempotency, test cards and the Stripe CLI, and a going-live checklist
- A fill-in-the-blanks paste template (stack, framework, host, product, price, mode)
- 8 smaller copy-paste prompts: decide, scaffold Checkout, webhook, fulfillment, idempotency, test, go-live, recovery
- Agent rules for Cursor, Claude Code (CLAUDE.md) and generic AGENTS.md
- A pre-launch checklist (test mode to live mode) and a troubleshooting guide for the most common failures
- A test protocol and the results log from the simulated run, so you can see exactly what has and has not been verified
Who it is for
You built an app with an AI tool and want to charge for something using Stripe Checkout, and you can run a terminal command.
Who it is not for
You want a no-code storefront (use a Payment Link or Gumroad), or you need tax handled for you (look at a merchant of record).
The path
01
Decide & plan
Payment Link or Checkout Session? Your agent asks about your stack, product and who is the seller before any code is written.
02
Keys, safely
Env vars, restricted keys, and a hard rule: your agent never asks you to paste a secret into chat.
03
Checkout
Server-side Checkout Session with the price taken from your own catalog, plus success and cancel pages that grant nothing on their own.
04
Webhook that holds up
Raw-body signature check, handling both completed and async-paid events, idempotent fulfilment that survives retries and duplicates.
05
Test locally
Stripe CLI, test cards, and a signed replay script so you can prove fulfilment works before a real customer does.
06
Go live
A test-to-live checklist and a review prompt that hunts for leaked keys, client-trusted prices and unguarded downloads.
Test status
What was run: Simulated run only: an AI agent followed the prompts as a buyer would, with no AI coding tool, against stripe-mock and locally signed webhook events (no real Stripe account).
Pack version: Pack content v0.3
Date: 2026-10-23
Sample tasks 1 and 2 passed 26/26 and 23/23 harness checks in the simulation; task 3 (production readiness review) passed with weak evidence. NOT yet run inside Cursor, Claude Code or similar, and NOT run against real Stripe checkout. Stripe facts were checked against current docs on 2026-10-23. The full log is in the download.
FAQ
What exactly do I get?
A zip of Markdown files: a master agent prompt, a fill-in paste template, 8 smaller prompts, rules files for Cursor, Claude Code and AGENTS.md, a go-live checklist, a troubleshooting table, and the test log. You paste them into the AI coding tool you already use.
Has it been tested?
Partly, and we say exactly how. On 2026-10-23 an AI agent followed the prompts as a buyer would and built a Next.js sample app against stripe-mock and locally signed webhook events: 26 of 26 checks on the checkout task and 23 of 23 on the replay and duplicates task. That run found and fixed 9 problems. It was not run inside Cursor, Claude Code or similar, and not against real Stripe checkout. The full log ships in the download.
Which tools and stacks does it fit?
The reference code is TypeScript with the stripe npm package, written for Next.js App Router. The prompts tell your agent to adapt to Express, Remix, Astro, SvelteKit, edge runtimes, Supabase, and the built-in Stripe flows in Lovable and Bolt, but only the Next.js path has been exercised.
Is it a Stripe integration I can drop in?
No. It is prompts and rules that make your AI tool build the integration properly in your own codebase, then check it. You still run the app, use the Stripe sandbox, and approve the changes.
What about sales tax and VAT?
You are the seller unless you choose a merchant of record or Stripe Tax. The pack explains the options and when to look at a merchant of record instead. It does not give tax advice.
How do I get it after paying?
Stripe sends you to a download page right after checkout, and your Stripe receipt goes to the email you paid with. If anything goes wrong, email loadoutkit@outlook.com with your receipt.
Refunds?
If the pack does not work as described in its test log, email within 14 days for a full refund. See the refund policy.