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用 System One/Two 分层搭 harness 的 Jev 模糊 linter 实践

把不需要推理的规则交给 Jev 这类 System One 模型判断,System Two 模型控制整体流程,作者认为这是更省钱的 agent harness 搭建思路。

elvis
@omarsar02026.09.28收录原推发布于 2026.09.28
elvis @omarsar0原推发布于 2026.09.28
在 X 上打开原推

This is brilliant. Recommended reading. It's a great example of how you could potentially build more effective harnesses using System One and System Two models. It explores Jev's potential as a fuzzy linter. Before you dismiss it, check out the setup. I like this post because it provides a few details of a good setup for testing these ideas. It scopes the problem well, like filtering out rules that are easy to judge (i.e., don't require extra context/resoning). That's important because System One models like Jev aren't built for reasoning-heavy tasks. But it doesn't mean that they aren't more deterministic operations where Jev could help scale efficiency and performance. You just have to look closer at the harness. In the harness, a System Two model typically controls all the components and decisions that you could potentially offload to a System One model. It's aligned with what ideas I shared here: https://academy.dair.ai/resources/jev-decisions-in-a-pi-sdk-harness It's becoming extremely obvious that you don't need frontier models for everything. You are likely paying a premium for something you don't need. I really hope we get more evals and benchmarks to measure these things because there is a thread worth pulling here.

这条是引用着另一条写的:「把 Jev 当 agent 编辑后的模糊 linter」

x.com/omarsar0/status/2104248143739015190采集于 2026.09.28 10:01