Unverified50% confidenceOpinionExact time
In legacy system scenarios, the criterion for judging LLM output quality should not be how new the code is, but whether it respects the system's existing behavioral contract.
1
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50%
Confidence
Long-term
Relevance
11/2/2026
First Seen
Sources
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Related Claims
UnverifiedThere is a mismatch between the LLM's objective function and the goals of legacy system maintenance: LLMs are trained to generate typical good code, whereas legacy systems require conservative changes to keep things as they are.72% similarUnverifiedFor most LLM applications, output length is essentially a product decision, not a question of model capability.72% similarUnverifiedTrue LLM reproducibility should be expressed through behavioral contracts, that is, downstream metrics of output hashes on a given corpus (pass rate, keyword hit rate, structured JSON parsability) should remain statistically stable rather than byte-for-byte identical.69% similarUnverifiedLLM 的判别能力（判断输出质量）通常优于其生成能力（直接产出完美结果），因此多轮迭代可逐步缩小两者差距69% similarUnverifiedThe evaluation criteria of an LLM judge drift as model versions are updated, business rules are adjusted, and user behavior changes, and the drift itself does not proactively raise errors.69% similar
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