kjdesign.studiokjdesign.studio / marketplacemarketplace
Free, practical, no signup required. If you want the full playbooks and Claude connected to the systems you run, that lives in membership.
● Building with AI
The harness: how we make AI agents build real software
The markdown files that turn a capable model into a reliable team, shown from our own repository.
Stop running everything on the biggest model
Plan with the expensive mind, build with the affordable hands. How we split work across Claude tiers.
Making AI write like a person
The style guide our agents load before touching customer-facing words, tell by tell.
Setting up Claude Code for a small business
Install it, write the one file that teaches it your business, and three tasks that prove it in an afternoon.
Clerk auth in a weekend
What Clerk is, when it's the right call, the happy path for a Next.js app, and the three mistakes everyone makes.
Deploying on Vercel without surprises
Projects, environments, and domains explained plainly, preview deploys as a habit, and the bill-shock traps to avoid.
A QA loop your agents can run
Screenshot, critique, iterate: the verification loop that makes an agent's claim of success worth something.
● Running the business
What connecting Claude to your business data looks like
What it is, what you can ask, and what it takes to set up. Toast is our first hosted connection.
How the $199 templates work
What's in the download, the Claude customization guide, and the done-for-you option.
Five numbers to check every Monday
The short list that predicts whether your week made money.
Reading your P&L without an accounting degree
The five lines that matter, what normal ranges look like, and what to do when one drifts.
Menu pricing that keeps up with your costs
How to cost out a dish, set margin targets by category, and raise prices without losing regulars.
The customer list you already have
Turning receipts and POS data into a usable regulars list, plus simple win-back outreach.
Choosing software your staff will actually use
An evaluation checklist for small business tools, the red flags to watch for, and why fewer systems wins.