https://wintechhq.com/blog/ Field notes on building production AI agents and LLM applications. en-us https://wintechhq.com/blog/production-ai-agent-checklist/ https://wintechhq.com/blog/production-ai-agent-checklist/ A demo agent needs a prompt and a model. A production agent needs a scope, narrow tools, approval gates, evals, tracing and a budget. Here is the checklist we use before anything goes live. Wed, 14 Oct 2026 12:00:00 GMT AI agents Engineering https://wintechhq.com/blog/rag-vs-fine-tuning/ https://wintechhq.com/blog/rag-vs-fine-tuning/ If the goal is answering from your own documents, start with retrieval. Fine-tuning changes how a model behaves, not what it knows today. A practical guide to choosing — and combining — the two. Wed, 14 Oct 2026 12:00:00 GMT RAG LLM engineering https://wintechhq.com/blog/ecommerce-competitor-price-monitoring/ https://wintechhq.com/blog/ecommerce-competitor-price-monitoring/ What to track, how often to check, and how to turn competitor moves into decisions — without drowning in alerts or starting a price war you can't win. Wed, 14 Oct 2026 12:00:00 GMT E-commerce Rivyx