AI Agents & ML Architecture
Deep-dive articles on building production AI agent systems from scratch — architecture decisions, LLM orchestration patterns, adaptive learning loops, and how to keep your system provider-agnostic.
Building an AI Agent for Invoice Processing: Architecture Deep Dive
How I designed a multi-layer, LLM-powered invoice automation system with an acting pipeline, investigation layer, and adaptive learning framework — without RAG, without LangChain, and without vendor lock-in.
learning/ai-agents-ml-architects/invoice-processing-agent-architecture
From Plain LLM to Context Graph: The Evolution of AI Knowledge Retrieval
A progressive deep-dive through four generations of AI knowledge architecture — from standalone LLMs, through RAG and GraphRAG, all the way to Context Graphs — with diagrams, real tools, and honest trade-offs at each stage.
learning/ai-agents-ml-architects/from-llm-to-context-graph