Agent Harnesses 与 Agent Frameworks 的区别

If you've been hearing "agent framework" and "agent harness" thrown around and can't tell the difference, this is for you. The terms sound interchangeable but they're not. I worked at @crewAIInc, which is an agent framework, so I have a sense of where the boundaries are.

如果你一直听到别人提起 "agent framework" 和 "agent harness"，却分不清它们的区别，这篇文章就是为你写的。这些术语听起来可以互换，但实际上并非如此。我曾在 @crewAIInc 工作，那是一个 agent framework，所以我对它们的界限有一定的了解。

Agent frameworks and agent harnesses sit at different points on a spectrum of opinionation. Understanding where they sit matters if you're building agents, because it changes what you're responsible for and what the tool handles for you.

代理框架和代理 harness 位于意见化程度的谱系不同位置。理解它们的位置很重要，如果你是在构建代理，因为这改变了你负责什么以及工具为你处理什么。

If you put agent development on a line, raw code with no abstractions sits on the far left. You're calling APIs directly, managing state yourself, building every piece from scratch. Total flexibility, total responsibility.

如果你把代理开发放在一条线上，没有抽象的原始代码位于最左侧。你直接调用 API，自己管理状态，从零构建每个部分。完全灵活，完全责任。

Agent frameworks sit in the middle. They give you structure and abstractions, but you still make a lot of decisions. You pick the memory system, you configure the tools, you define the orchestration logic. The framework has opinions about how things should connect, but it's modular. You can swap components.

Agent frameworks 处于中间位置。它们为你提供 structure 和 abstractions，但你仍然需要做出很多 decisions。你选择 memory system，配置 tools，定义 orchestration logic。Framework 对事物如何连接有 opinions，但它是 modular 的。你可以 swap components。

Agent harnesses sit on the far right. They're maximally opinionated. Everything is baked in. You add your API keys, maybe point it at a few tools, and it runs. Memory, context management, the agent loop, safety checks. All of that is decided for you.

Agent harnesses 位于最右侧。它们是最大程度 opinionated 的。一切都已 baked in。你添加你的 API keys，或许指向几个 tools，它就会运行。Memory、context management、agent loop、safety checks，所有这些都已为你决定。

A framework gives you abstractions for building agents. You define roles, tasks, tools. You specify how agents coordinate, w...