Engineering notes
Articles for people who
ship the stack
Rewrites on React, Node.js, TypeScript and AI. A translated body is shown when it exists. If it does not, you see the English text and a note that says so.
Tagged: react-agent
A LangChain Trading Agent Backed by Live EODHD Market Data, Step by Step
Why LLM trading agents fail without real data, how the ReAct loop works, and how to build a three-tool LangChain agent on EODHD prices, fundamentals and RSI.
8 min readReAct from scratch: thought, action, pause, observation without a framework
A tiny ReAct loop built by hand on Groq: thought, action, pause, observation, manual first, then regex tool calls, so LLM agent frameworks make sense.
6 min read
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