Self-Improving Agent Harnesses with Small Models: CMU's 6-Step Optimization Loop
A practical breakdown of CMU research where a 4B model out-edited its 35B teacher: a 6-step loop to evolve agent harnesses without modifying the underlying task
#HarnessEngineering
TAU-HOME.COM stories tagged HarnessEngineering.
Hugging Face's Multi-Harness RL Architecture: Preventing Agent Overfitting Across Coding Interfaces
How Hugging Face and Liquid AI use OpenEnv, Harbor, and TRL to train models across Claude Code, Codex, OpenCode, and Mini-SWE-Agent without single-harness overf
Understanding Harness Engineering for AI Agents: A 48-Page Architecture Design Handbook
Based on the foundational 'Agent = Model + Harness' principle, this 48-page technical handbook breaks down the control systems surrounding AI models—covering AC
Learn Harness Engineering: 14 Lectures and Hands-on Guide to Building Reliable Coding Agent Harnesses
An open-source harness engineering course designed to help AI coding agents like Codex and Claude Code persist state across sessions and enforce independent ver
Same Model, Same Prompt — Why 'Harness Engineering' Decides Success or Failure
The same LLM model and prompt can fail or ship depending on harness design. A guide to the five harness subsystems — instructions, tools, environment, state, fe
Building Production Agent Harnesses with Claude Code: 1-Hour Masterclass Tips
Key takeaways from an Anthropic engineer's 1-hour Claude Code masterclass: harness execution loops, CLAUDE.md, Plan Mode, reusable skills, and self-recovering A