@yan5xu: https://x.com/yan5xu/status/2059117572826746979
Summary
The article discusses three stages of LLM engineering evolution from Prompt Engineering to Harness Engineering, reflecting the progression of AI engineering practices.
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Cached at: 05/26/26, 05:04 AM
From Prompt to Harness: How to Understand LLM Engineering
Although the history of LLM applications began with the release of ChatGPT in 2022, engineering practices have evolved from Prompt Engineering, through Context Engineering, to today’s Harness Engineering. To fully understand Harness
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This article by yan5xu (former ManusAI) proposes a spiral evolution model for LLM engineering paradigms: from Prompt Engineering (2022-2024) to Context Engineering (2025), then to Harness Engineering (2026-), and discusses the bottlenecks and driving factors at each stage.
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