

A practical 2026 guide to building AI agents that survive production. Opinionated framework comparison (Pydantic AI, LangGraph, build-your-own, Helix), two worked examples in code and in markdown, the harness, environment, store, and evaluation patterns.
Read moreAn opinionated 2026 decision framework for choosing between retrieval-augmented generation (RAG), fine-tuning, and hybrid approaches for LLM applications. Decision tree, comparison table, and named tooling.
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