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concepts/prompt-to-harness-evolution.md
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title: "Prompt-to-Harness Evolution(三阶段工程演进)"
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created: 2026-05-23
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updated: 2026-05-23
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type: concept
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tags: [agent, evolution, prompt-engineering, context-engineering, harness]
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sources: [raw/papers/agent-harness-engineering-survey-2026.md]
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confidence: high
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---
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# Prompt → Context → Harness Engineering 三阶段演进
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> Agent 工程的约束瓶颈随时间从 Prompt 上移到 Context,再上移到 Harness 层面。每个阶段对前一阶段的包含而非取代。
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## 三阶段
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| 阶段 | 时期 | 约束瓶颈 | 核心问题 |
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|------|------|---------|---------|
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| Prompt Engineering | 2022-2024 | 模型指令遵循能力 | "如何让模型做我想做的事?" |
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| Context Engineering | 2025 | 上下文窗口管理 | "模型应该看到什么才能做出正确决策?" |
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| Harness Engineering | 2026- | 基础设施全栈可靠性 | "整个系统如何在生产环境中可靠运行?" |
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## 包含而非替代
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每一阶段包含前一阶段:
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- Harness Engineering 包含 Context Engineering(上下文是 harness 的 C 层)
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- Context Engineering 包含 Prompt Engineering(prompt 是最基本的上下文)
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最佳理解方式:**边际工程努力的转移**,而非替换序列。
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## 2026 年的三个验证事件
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1. OpenAI 明确采用"harness"术语
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2. Anthropic 发布关于 harness 设计的工程博客系列
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3. Martin Fowler 网站发表 harness engineering 文章(Böckeler, 2026)
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## 相关概念
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- [[binding-constraint-thesis]]
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- [[agent-harness-engineering]]
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- [[context-management]]
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- [[agent-harness-engineering-survey]]
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