Latest from the Newsletter
Recent posts from my Substack — the "Build Your Own AI OS" series and more.
Build Your Own AI OS, Part 12: Turn a Folder of Markdown Into an App
A few weeks ago you ran a prompt that made the AI describe your folder structure and tell you, politely but honestly, where it would lose information. Since then, one prompt at a time, you’ve added…
Build Your Own AI OS, Part 11: See Your Data as Tables and Boards
There’s a gap between having structured data and being able to use it. You spent the last few weeks turning your notes into typed records such as clients with fields, deals with stages, contacts…
Build Your Own AI OS, Part 10: The Hook That Won't Let the AI Cut Corners
There’s a gap between a system that starts right and one that stays right. Templates close the first gap. By part nine you have clean templates, typed records, and a folder structure the AI can…
Build Your Own AI OS, Part 9: Make Every Record Start Complete
The previous prompt gave your records a schema: a declared set of fields that every note of a given type must carry. A meeting note must have a date, attendees, and a status. A client record must…
Build Your Own AI OS, Part 8: The Field Form You Might Not Need
The previous prompt gave you YAML schemas: machine-readable definitions that tell your system exactly what goes in each field, what values are allowed, and which fields are required. The AI reads…
Build Your Own AI OS, Part 7: Define Each Record Once, in YAML
By now you have a working folder structure, a way to query it, templates for the records you keep, and a workspace to look at it all. What you don’t yet have is a single, authoritative definition of…
The first six prompts — your AI OS foundation, in one place
A quick roundup. This series runs a prompt at a time on the site through the week; once a week I gather them here so you’re not chasing links. Here’s the first batch — six prompts, and by the end of…
Build Your Own AI OS, Part 6: Never Re-Paste Your Business Again
Part 1 was mostly about thinking. You described your business to the AI, codified the structure, got the conventions into writing. Good. Useful. Necessary. But none of that runs automatically. Every…
Build Your Own AI OS, Part 5: Turn a Skill Into a Process That Runs Itself
There’s a meaningful difference between an AI that can answer questions well and one that can run a process. The first is impressive. The second is useful in the way a reliable colleague is useful —…
Build Your Own AI OS, Part 3: One File the AI Reads Before It Does Anything
If you’ve run the first two prompts, you have a map of your system and a routing table that tells the AI where things belong. That’s real progress. But there’s a problem neither of those fixes on…
Build Your Own AI OS, Part 4: Stop Re-Explaining the Same Task to Your AI
There is a task you explain to the AI every single time you need it done. Maybe it’s how you draft a certain kind of email. Maybe it’s how you prepare a client meeting, or how you structure a…
Build Your Own AI OS, Part 2: Turn Your Notes Into Records You Can Query
If you ran last week’s prompt, you have a system map: an honest, slightly uncomfortable picture of your current setup. Folders that mean different things on different days. Meeting notes in three…
Build Your Own AI OS, Part 1: Make the AI Describe What You Already Have
There’s a temptation, the moment you decide to get serious about AI, to start adding things. A better prompt. A new folder structure. Some tool a video told you about. Don’t. Before you add…
You Don't Take a Course to Hire an Employee
There’s a wave of cohorts right now promising to teach you to build “AI employees” with Claude Code. Two weeks of calls, a community, a monthly membership. The thinking behind them isn’t wrong. But…
ThirdBrain BOB is skilled up and ready !
ThirdBrain BOB is now public Join the free ThirdBrain Skool community here: skool.com/thirdbrain-tech-3102/about Thanks for reading! Subscribe for free to receive new posts and support my work…
Recipes vs. the Kitchen
Nate Jones’ “Open Skills” is a genuinely good piece of thinking about AI-agent design. It’s also a catalog of things you have to build yourself, sold under a word that promises things you can…
Your AI runs your business. Do you see what it's doing?
Your AI runs your business this week. Can you see what it's doing? You hire a human assistant — they reorganise a folder, add deals to your pipeline, send a few emails, draft an invoice. At the end…
I Did a Deep Side-by-Side of Anthropic's SMB Plugin vs ThirdBrain BOB. Here's What It Reveals About Two Very Different Bets on AI for Business.
Anthropic just shipped a small-business AI toolkit. It's well-made, honest about its scope, and built on a set of assumptions that will work beautifully for some businesses — and completely miss…
The Resurrection Test
Most AI agents wouldn’t survive Easter. Not theologically — structurally. The resurrection story is, at its core, a verification problem. Something is claimed to have happened. The evidence is…
Your AI remembers everything. That's the problem.
Everyone in AI is racing to build better memory. Bigger context windows. More vectors. Fatter knowledge graphs. The assumption is simple: more memory = smarter agent. But here’s what nobody’s…
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