Developer Open-Sources 1,200-Line Teaching Agent Harness in Python

Pawel Huryn released Mini Harness, an MIT-licensed 1,200-line Python teaching agent harness with only two dependencies, covering the reasoning loop, memory, permission gating, sub-agents, MCP, and context compression. It even outperformed the official implementation on Terminal-Bench and comes with a step-by-step tutorial series.

2026-11-05 ~ 2026-11-05 · 4 related posts

• Dev builds 1,200-line Mini Harness that beats Claude Code on Terminal-Bench — PawelHuryn · 2026-11-05
• The agent reasoning loop explained: how a harness turns one Q&A into many steps — PawelHuryn · 2026-11-05
• Build your own AI agent harness: memory, permission gates, and subagents — PawelHuryn · 2026-11-05
• mini-harness: a ~1,200-line teaching agent harness with MCP, skills and compaction — PawelHuryn · 2026-11-05