How to Build an AI Agent from Scratch (It's Just a While Loop)

A developer has published a walkthrough for building an AI agent from scratch in TypeScript using only a model API and a while loop, covering tool calling, parallel tool calls, and a bug that no existing framework can fix. The writeup argues that the core agent loop is simpler than the surrounding tooling suggests.

Build an AI agent from scratch in TypeScript with only a model API and a loop. Covers tool calling, parallel tool calls, and a bug no framework can fix. For further actions, you may consider blocking this person and/or reporting abuse We're a place where coders share, stay up-to-date and grow their careers.