Module history 

History + HistoryBuilder + the report type compact_if_needed returns.

Structs

CompactionReport

Reports what History::compact_if_needed did when it ran. Returned wrapped in Option: None means compaction was not needed (history fits within max_tokens).

History

Owns the message vector backing a single conversation, plus the budget and pin mask that govern how compaction reduces it.

HistoryBuilder

Configuration for a History.