Build your own agent harness from scratch: a minimal three-module guide

Researcher Elvis Saravia shared a beginner's guide to building an agent harness from scratch. He recommends implementing a minimal version yourself in TypeScript or Python—covering the LLM module, tools module, and main loop—starting from the ReAct paper rather than relying on existing frameworks.

2026-09-15 ~ 2026-09-15 · 3 related posts

• How to build an agent harness from scratch: LLM module, tools module, and the ReAct route — ryunuck · 2026-09-15
• A short guide to building an AI agent harness from scratch in three modules — omarsar0 · 2026-09-15

1 near-duplicate retellings: omarsar0