applyCompaction

function applyCompaction(
   messages,
   cut,
   summary
): ChatMessage[];

Defined in: core/src/context.ts:143

Fold messages into […system, summary, …tail].

The summary arrives as a user turn rather than a system one: a system message added mid-conversation reads to the model as a new instruction, and several providers require the system block to be first and singular anyway.

Parameters

Parameter	Type
messages	readonly ChatMessage[]
cut	number
summary	string

Returns

ChatMessage[]