Video Library

Project-based video training & tutorials for building with AI.
I want to like Google Antigravity, but...
I was genuinely excited about Google Antigravity's fresh ideas for the agentic IDE—multi-project management, multi-agent orchestration, and that clever screen recording review process. But when I actually tried to build with it... Well, you'll see...
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Using Claude GitHub Actions as a cloud coding agent
Here's a great way to tackle your backlog of GitHub issues by simply mentioning Claude in your GitHub comments. Watch me do this on the builder methods site using the Claude GitHub actions integration.
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Pro
Claude Opus 4.5 vs. Google Gemini 3: Design & build an app
Let's compare Claude Opus 4.5 and Google Gemini 3 to see how they stack up when it comes to planning, designing frontend and backend for a new app! Plus how I evaluate new frontier models when they drop...
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Comparing Multiple Agents' Work with Git Worktrees & Cursor
I demonstrate my workflow for running multiple AI coding agents (Claude Sonnet 4.5 and Cursor's Composer 1) in parallel on the same feature, then comparing their work to choose the best implementation. The focus is on solving the practical challenges of reviewing agent work in git worktrees by using a branch-based approach that makes testing, debugging, and merging much more manageable.
Pro
3 New Features in Claude Code 2.0 I use DAILY
Claude Code 2.0 dropped with Sonnet 4.5, a VS Code extension, and new features. But I've been testing these updates in production for weeks to see what's actually useful for professional developers—not just demos. In this video, I share my honest impressions of what matters for building real products. I'll...
Best Practices for Managing and Customizing Agent OS Standards
In this video, I share a best practice for managing and customizing your standards in AgentOS, which simplifies the process of updating to the latest version (it was 2.0.5 at the time of this recording). I demonstrate how I commit my base installation to a private GitHub repo for easy...
Pro
Claude Code Multitasking Made EASY
Claude Code is excellent as an autonomous coding agent. So the obvious next step is to run multiple Claude Code agents in paralell. Simple, right? This video shows you how to use Git Worktrees and my method for automating the workflow for spinning up new worktrees to run multiple Claude Code agents simultaneously.
Cursor Keyboard Shortcuts for POWER Users
As professionals, we have to master our tools. My daily driver for coding and building with AI? Cursor (a fork of VS Code). So I'm sharing all most frequently used Cursor keyboard shortcuts, how I've customized them and how you can customize your shortcuts in Cursor (or VS Code).
Builder Methods

Training & community for pro software developers building with AI.

Created by Brian Casel (that's me). I'm a career software developer, founder, and creator of Builder Methods and Agent OS, the system for spec-driven development with AI.

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