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Cover of Claude Code: Building Production Agents That Actually Scale by Thomas De Vos

Claude Code book is live on Amazon Kindle

Claude Code: Building Production Agents That Actually Scale is now live on Amazon Kindle. Here is who it is for and why I wrote it.

Claude Code rollback envelope diagram showing scope, agent change, and rollback path

Claude Code Rollback Plans Belong in the Prompt

If a Claude Code agent can change production-shaped code, the prompt should say how to undo the work. Rollback is not paperwork after the diff. It is part of the task boundary.

Claude Code agent cost loop diagram showing vague tasks, broad tools, repeated exploration, and no stop rule

Claude Code Agent Cost Loops Start as Workflow Bugs

Claude Code cost problems usually start before the model call: vague tasks, wide-open tools, repeated repo exploration, and no stop rule. Treat spend as a workflow bug, not just a pricing problem.

Claude Code evaluation loop showing capture, reduce, test, and change steps for failed agent runs

Claude Code Evals Should Start With Bad Runs

Production Claude Code evals should not begin with abstract benchmarks. Start with the agent runs that scared you, reduce them into replayable cases, and use them to tune permissions, prompts, tools, and review gates.

Claude Code permissions blast-radius diagram showing agent workspace, repo files, CI deploy, secrets, and production data

Claude Code Permissions: The Production Mistake That Bites Later

Claude Code permission modes can look safer than they are. The real production risk lives in tool scope: paths, network access, secrets, deploy files, and what reviewers actually approve.