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Published on 23.12.2025
TLDR: The ZTRON team built a vertical AI agent for financial advisors and found that their initial complex architecture, using trendy technologies like multi-index RAG and MCP, created a slow and unstable application. They achieved stability, performance, and scalability by simplifying their stack, replacing agentic RAG with Context-Aware Generation (CAG) for many tasks, and using durable workflows for background processing.
Link: We Killed RAG, MCP, and Agentic Loops. Here's What Happened.