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Better Harness: A Recipe for Harness Hill-Climbing with Evals

BACKGROUND
1 SIGNALFIRST DETECTED 8 April 2026
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Other feeds and industry voices
25 Apr
The Last Harness You'll Ever Build

arXiv:2604.21003v1 Announce Type: new Abstract: AI agents are increasingly deployed on complex, domain-specific workflows -- navigating enterprise web applications that require

REPORT · WHAT · ArXiv CS.AIOPEN STORY
22 Apr
the model alone is not the agent. The harness plus the model is the agent.

<p>An agentic harness is the orchestration and control layer wrapped around a base language model that transforms it from a stateless text predictor into an agent capable of

REPORT · WHAT · Dev.toOPEN STORY
12 Jun
HarnessBridge: Learnable Bidirectional Controller for LLM Agent Harness

arXiv:2606.12882v1 Announce Type: new Abstract: Large language models are increasingly deployed as agents for long-horizon tasks, yet their performance is shaped not only by model

REPORT · WHAT · ArXiv CS.AIOPEN STORY
26 Mar
How we build evals for Deep Agents

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REPORT · HOW · LangChain BlogOPEN STORY
7 Apr
How to setup Anthropic Style Harness?

<!-- SC_OFF --><div class="md"><p>I read the latest Anthropic blog post with great interest. How can I setup a similar harness?</p> <p><a

OPINION · HOW · LocalLLaMAOPEN STORY
23 May
Towards Direct Evaluation of Harness Optimizers via Priority Ranking

arXiv:2605.22505v1 Announce Type: new Abstract: Harness optimization enables automated agent creation by having an optimizer agent iteratively update the harness of target agents.

REPORT · HOW · ArXiv CS.AIOPEN STORY
19 Oct
Harness Engineering 101: The LLM is the brain, the harness is the body

<a href="https://news.ycombinator.com/item?id=50151390">Comments</a>

REPORT · WHAT · Hacker News Best (RSS)OPEN STORY
7 Sept
What Does Multi-Harness RL Learn? Credit Assignment and Portability in Coding Agents

arXiv:2609.04518v1 Announce Type: new Abstract: Agent reinforcement learning (RL) increasingly runs through full execution harnesses, and a multi-harness recipe mixes two choices:

REPORT · WHAT · ArXiv CS.AIOPEN STORY
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