Free Tools
Interactive tools for builders. Pulled from 150+ frameworks I built across strategy, risk, and execution. No signup, no paywall.
Builder Pattern Quiz
Which trap are you stuck in? 8 honest questions to identify your pattern — Perpetual Student, Optionality Addict, Feature Factory, or five others — with the specific fix for each.
ValidateBuilder Readiness Assessment
12 honest questions across problem, validation, capability, and sustainability. Find out if you're ready to ship — or if you're about to build the wrong thing at full speed.
ValidateAI ROI Calculator
Current costs vs AI solution costs. 3-year projection with payback period. The math you need to justify the project to yourself or stakeholders.
ShipUnit Economics Calculator
Three numbers on a napkin: cost per user, what you charge, and how many paying users you need. Margin, breakeven, lifetime value, and what it looks like at scale.
BuildLLM Cost Calculator
Compare API costs across 17 models from OpenAI, Anthropic, Google, Meta, and Mistral. Set your volume, see what it actually costs per month.
The AI Product & Engineering Playbook is where the real depth lives. The tools help you run the numbers. The playbook helps you think about whether the numbers are the right ones to run.