[KongchangAI]
Conceptcontext constructor

Context Builder

A code layer responsible for assembling, formatting, and filtering input content before it is passed to a model. It determines the information the model ultimately receives and is one of the most frequently overlooked sources of behavioral change in LLM systems during routine testing.

Timeline (last 90 days)

Oct 12

A context constructor is the code layer responsible for assembling, formatting, and filtering inputs before data is fed into the model; changes to it do not affect model weights or prompt templates but can alter the premises of model reasoning.

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Oct 12

The root cause of the incident was a modification to the context constructor, while the team's evaluations were only triggered by changes to the model or prompt templates, and modifications to the context constructor never triggered an evaluation.

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