I build software companies for a living — and write down everything that works. Four published books on AI agents.
Field notes, not theory. Three more on the way.
Inner Circle members read them before anyone else — early chapters, launch pricing, and free ebook editions. Join free →
Integrations are the most underrated growth channel in software. This is the playbook for building them the right way — the partnerships, the engineering, and the distribution physics that make your product the one customers can't rip out.
Move from prompting Claude to delegating complete, connected, governed business jobs.
Turn ChatGPT from a chatbot into a personal and company-wide business operating layer.
"I don't write theory. I write down what worked, what broke, and what I'd do differently — while the bruises are still fresh."
Justin Brian Smith is the founder and CEO of Contractor+, the operating system for build and service contractors — and the author of four business books written from inside the arena.
His books aren't recycled frameworks. Agentic Software came from shipping AI agents into production. Cookie-Led Growth came from discovering that delighting humans converts better than cold outreach. The Perpetual Raise came from running fundraising like a pipeline instead of a panic. The High-Growth Contractor came from serving thousands of contractors and noticing what the winners do differently.
Next up: Impossible To Say No — integrations as a growth strategy — plus Claude AI for Business: The 10X Playbook and ChatGPT for Business: The 10X Playbook, a practical pair for turning AI from a chatbot into a business operating layer.
Everything in the books gets pressure-tested here first.
The OS for build & service contractors — estimates, invoicing, payments, scheduling, and growth in one app.
SaaS · Field ServicesA free tool for individuals and couples to mood-journal and process thoughts and feelings — better thinking, better life.
AI · Mental WellnessGenetically appropriate meals the whole family will actually eat — optionally powered by your labs and DNA methylation results.
AI · NutritionA fully autonomous content engine for high-growth startups — research, writing, visuals, and SEO from a single keyword.
AI · ContentPhysical-mail one-time passwords for high-trust identity verification — postcards as an out-of-band auth factor.
Security · IdentityAI-powered insurance coverage intelligence — turning dense policy language into clear decisions.
AI · InsuranceEarly access to launches, free ebook editions, first-chapter drops, and behind-the-scenes notes from building and writing. No noise — I only write when it matters.
