Databricks launched Omnigent, an open-source 'meta-harness' layer on top of the agentic stack to make agents effective at scale.
“we call it a meta harness of harnesses, if you know what an agent harness is.”
agent-harness
8 tracked signals on agent-harness.
Models absorbing harness capabilities into weights is reshaping agent architecture toward human-attention scaffolding
“The change last winter, last Christmas — it's a little hard to pin down. I mean, the harness changed and a little post-training changed and then new pre-trained models came… but it felt like a big jump which is not that easy to pin down what did it.”
Agent harness architecture drives double-digit benchmark swings independent of model choice
“Harness design alone can account for double-digit swings in benchmark results and significant differences in token cost”
Databricks open-sourced Omnigent, a meta-harness that routes queries across multiple agent harnesses through one runner.
“So, Databricks open-sourced a fix, Omnigen. It's a meta harness. One layer that sits above every harness.”
OpenAI's Codex agent harness is open source, MIT/Apache 2 licensed, and written in Rust.
“the Codex harness and everything I'm showing you is actually open source. Uh it's MIT it's Apache 2 license and the harness is written in Rust.”
NVIDIA proposes adding specialized deep research skills to agent harnesses like Claude Code
An agent harness is the surrounding engineering scaffolding built around the core model-and-tool-calling loop.
“Harness is sort of the surrounding support that we add onto that core model and tool-calling loop.”
Microsoft Foundry lets developers deploy advanced code-based agents via a layered runtime, intelligence, and collaboration stack.
“you can kind of choose the level of simplicity or control that you want for your agents”