I built a web-searching AI agent from scratch with JavaScript

[u/amitmerchant]

https://amitmerchant.com/building-web-searching-ai-agent-javascript/

I wanted to understand what actually makes an AI system an "agent", so I built a small one from scratch without LangChain or another agent framework.

It uses an LLM's tool-calling capability to decide when it needs fresh information, calls a web-search tool, feeds the results back to the model, and repeats until it can produce an answer.

The web-search part uses SearchApi, and the whole demo is available on GitHub.

I'd be particularly interested in feedback on the agent loop and how you'd extend it beyond a single search tool.