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Justin McKelvey | Fractional CTO & AI Consultant

Fractional CTO in Austin — 15 years, 50+ products shipped. Every Tuesday, The AI Leader's Weekly Playbook sends one practical AI play for your business: real builds, real numbers, what actually worked. No hype, no "10 ChatGPT prompts" filler. If you want AI doing real work in your company, this is your Tuesday edge.

Three stages, in order. Skip one and you fall. — The AI Leader's Weekly Playbook
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Three stages, in order. Skip one and you fall.

The 3-stage decision matrix non-technical founders need. Hi there, You're a non-technical founder with an idea. You need to ship something. The order matters. If you skip a stage, the next one breaks. 1. Vibe-code the prototype. Use Lovable, Bolt, Replit — whatever's fastest. Don't hire a developer yet. The point is to learn whether the idea has legs, not whether the code is good. Spend $20–200 here, not $20,000. 2. Hire a developer to ship v1. Once the prototype proves people want this...

ChatGPT isn't the only game — The AI Leader's Weekly Playbook

10 AI tools I actually keep open. Most aren't ChatGPT. Hi there, ChatGPT is the default. It's not the answer to every question. On a normal workday I have at least 4 AI tools open. None of them is just ChatGPT. Here's where each wins: Claude — writing, analysis, anything where I need a clean first draft. Better prose than ChatGPT. Stays in voice. Cursor or Claude Code — coding. ChatGPT is fine for one-off scripts. For actual codebases, you want a tool that has the whole repo in context....

I turned my $4,500 install into a $397 playbook — The AI Leader's Weekly Playbook

The same Business Brain system I install by hand — now a build-it-yourself playbook. $397 until the walkthrough videos ship. Hi Reader, For the past couple of months I have been installing Claude for Small Business setups by hand — the 4-layer Business Brain, the connectors, the skills that draft customer replies and Monday-morning reports in the owner’s actual voice. Done-for-you, $4,500 and up. Today I published the playbook I use to do it. Not a lite version — the same system, written out...

Three AI questions I get every week (and the answers) - The AI Leader's Weekly Playbook

Should you build a custom AI agent? Is your industry about to be disrupted? Is it ethical to use AI on client work? Quick answers. Hi there, Format change-up this week. Three questions I keep getting, three answers. 1. "Should we build a custom AI agent for our business?" Almost certainly not yet. Custom agents are expensive to build, expensive to maintain, and almost always replace something a ChatGPT prompt could do for $20/month. The exceptions: you have a workflow that runs hundreds of...

The $43K AI agent that should've been a $20 prompt — The AI Leader's Weekly Playbook

A client built custom infrastructure for something ChatGPT does in 4 seconds. Hi there, Got a story for you. A founder I know spent $43,000 building a custom AI agent for their business. Six months of dev time, a contracted AI engineer, a vector database, "agent orchestration framework," the works. You know what the agent did? It categorized customer support emails into eight buckets and routed them to the right person. That's it. I tested the same task in ChatGPT — paste an email, ask which...

20 checks I run on every AI-written codebase before it touches real users — and the three most teams skip.

Three of the points will surprise you. Most teams miss all three. Hi there, Your team shipped code an AI wrote. Did they check it? Not "does it work." That's table stakes. I mean: did anyone check whether it'll get you sued, breached, or shut down? I just built a 20-point security checklist specifically for codebases where AI did the writing. Cursor, Claude Code, Lovable, Replit, Bolt — doesn't matter which tool. The mistakes rhyme. Three of the points that surprise people the most: 1. API...

The 5 types of business owners using AI — The AI Leader's Weekly Playbook

I've watched all five hire me — usually too late. Hi there, Five types of business owners using AI. I've watched all five hire me — usually one rung too late. There are patterns. Five, specifically. 1. The Tourist. Tried ChatGPT once. Said "neat" and went back to email. No system, no curiosity, no urgency. 2. The Tinkerer. Has 14 AI tools. Uses three. Can't articulate which one made them money this month. Mistakes activity for progress. 3. The Embedded Operator. Picked one tool, made it part...