https://ryrenz.com/tags/claude-code/ Recent content in Claude-Code on David Zhang | AI Engineering, Careers & Industry Deep-Dives Hugo -- 0.155.3 en-US Wed, 20 May 2026 03:00:00 -0400 https://ryrenz.com/ai/second-brain-needs-qmd/ Wed, 20 May 2026 03:00:00 -0400 https://ryrenz.com/ai/second-brain-needs-qmd/ Most Obsidian-as-second-brain tutorials skip the part where it breaks: once the vault gets big, Claude Code’s index-based search starts to fall apart. QMD, a local RAG tool by Shopify CEO Tobi Lütke, fixes exactly that gap — hybrid retrieval (BM25 + vector), fully local, free, and a 96% drop in token use. This post covers when to install it and the one prompt that gets it running. https://ryrenz.com/ai/harness-engineering-ai-efficiency/ Fri, 15 May 2026 14:07:23 -0400 https://ryrenz.com/ai/harness-engineering-ai-efficiency/ Raw models are no longer enough for serious engineering work. What actually separates mediocre results from great ones is the Harness built around the model: context management, tool execution, task orchestration, feedback loops, and architectural guardrails. https://ryrenz.com/ai/industrial-grade-skill-five-principles/ Sun, 03 May 2026 23:18:42 -0400 https://ryrenz.com/ai/industrial-grade-skill-five-principles/ A Skill isn’t a longer prompt — it’s a triggerable, executable, testable, maintainable workflow. From what a Skill actually is, to on-demand loading, tool boundaries, model selection, progressive disclosure, validation loops, and how to share it with other people — the full playbook for writing industrial-grade Skills. https://ryrenz.com/ai/claude-code-beginner-guide/ Sun, 12 Apr 2026 10:00:00 -0400 https://ryrenz.com/ai/claude-code-beginner-guide/ After a year with Claude Code, I distilled my workflow into 7 reusable principles. The biggest beginner mistake isn’t lack of skill — it’s treating Claude Code like ChatGPT. Used right, it’s your super-engineer. Used wrong, it’s a hallucinating, lying slacker.