root@devSoftware engineer. Curious mind. Creative human. Occasionally seen outside VS Code.https://root-dev.vercel.app/enHarness Engineeringhttps://root-dev.vercel.app/harness-engineering/https://root-dev.vercel.app/harness-engineering/What Harness Engineering is and how to prepare your repository to work with AI agents in a safe, predictable and productive way.Thu, 08 Oct 2026 12:00:00 GMTHow to build a second brain with Claude Code and Obsidianhttps://root-dev.vercel.app/second-brain/https://root-dev.vercel.app/second-brain/Context Engineering and your AI agent's knowledge base.Tue, 06 Oct 2026 14:00:00 GMTContext Engineering - Part 3: Spec-Driven Developmenthttps://root-dev.vercel.app/spec-driven-development/https://root-dev.vercel.app/spec-driven-development/Instead of one giant prompt and hoping for the best, markdown specs become the source of truth: PRD, Tech Spec, tasks, review and QA, step by step with Claude Code.Tue, 06 Oct 2026 13:30:00 GMTContext Engineering - Part 2: Rules vs Skillshttps://root-dev.vercel.app/rules-vs-skills/https://root-dev.vercel.app/rules-vs-skills/How to give your AI agent memory and abilities: what always applies becomes a Rule, what only applies to one task becomes a Skill.Tue, 06 Oct 2026 13:00:00 GMTContext Engineering - Part 1: The Context Windowhttps://root-dev.vercel.app/context-window/https://root-dev.vercel.app/context-window/What actually goes to the server when you talk to an AI tool, and why it changes the way you use Claude Code, Cursor or Copilot.Tue, 06 Oct 2026 12:00:00 GMTHello Worldhttps://root-dev.vercel.app/hello-world/https://root-dev.vercel.app/hello-world/The first post on root@dev.Mon, 05 Oct 2026 12:00:00 GMT