Essays by Jason Draper on LLM reliability, AI agent orchestration, and building audit-grade automation for regulated industries.https://vuca.dev/en-ushttps://vuca.dev/writing/excel-agent-architecture/https://vuca.dev/writing/excel-agent-architecture/Microsoft owns the format, the app, the models, and the telemetry — and still lost Excel-agent benchmarks. The reasons distill down to two fundamentals in agent design.Tue, 28 Jul 2026 00:00:00 GMTAI agentsagent designaudit automationLLMshttps://vuca.dev/writing/why-llms-struggle-with-financial-documents/https://vuca.dev/writing/why-llms-struggle-with-financial-documents/Why large language models struggle with complex document analysis, told through an analogy involving a library and an army of Einsteins.Sun, 28 Dec 2025 00:00:00 GMTLLMsaudit automationAI reliabilityagents