meta-harness-optimization

Installation
SKILL.md

Meta-Harness Optimization

Skill by ara.so — Daily 2026 Skills collection.

Meta-Harness is a framework for automated end-to-end search over model harnesses — the scaffolding code around a fixed base model that controls what the model stores, retrieves, and sees while working on a task. Rather than hand-crafting prompts and memory systems, Meta-Harness proposes, evaluates, and evolves harness implementations automatically.

Paper: Meta-Harness: End-to-End Optimization of Model Harnesses
Homepage: https://yoonholee.com/meta-harness/

Core Concepts

Term Meaning
Harness All code around the base model: memory, retrieval, prompt construction, tool use
Proposer Agent LLM (e.g. Claude Code) that proposes new harness variants
Evaluator Runs proposed harnesses on a benchmark, returns a score
Meta-Loop Iterative propose → evaluate → feedback cycle

Installation

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First Seen
Apr 17, 2026