https://www.richardpallangyo.com/ Data and AI engineer based in Seattle. Data science, data engineering, and AI engineering, building production systems and the products around them. en-us Wed, 15 Apr 2026 00:00:00 GMT https://www.richardpallangyo.com//writing/low-code-pivot https://www.richardpallangyo.com//writing/low-code-pivot Wed, 15 Apr 2026 00:00:00 GMT A pivot story from SSA Marine. I prototyped an AI agent in Microsoft Copilot Studio, hit a wall on the human-in-the-loop email approval flow, and made the costly call to rebuild from scratch with LangGraph and FastAPI. The lesson I took: always prototype the hardest workflow first, not the easiest one. AI production decisions LangGraph https://www.richardpallangyo.com//writing/grounding https://www.richardpallangyo.com//writing/grounding Fri, 20 Mar 2026 00:00:00 GMT When I built the conversational agent for Ubunifu Madness, my NCAA prediction platform, I had a specific problem. The model knew enough about basketball to fabricate plausible-sounding facts. The fix was structural rather than prompted. Every claim had to be backed by a tool call, and if the tool didn't exist, the agent had to say so. AI hallucination agents Claude https://www.richardpallangyo.com//writing/claude-code https://www.richardpallangyo.com//writing/claude-code Tue, 10 Feb 2026 00:00:00 GMT A measured account of what working with AI coding tools at scale actually looks like. It covers the collaboration shape, what makes a draft good or bad, where the discipline goes, and the productivity questions I can and can't honestly answer. AI-assisted development Claude Code patterns