Module history_pruner 

Structs

HistoryPrunerConfig

PruneStats

PrunedOrphans

Outcome of a single remove_orphaned_tool_messages pass. The caller is responsible for logging — that’s where the agent/channel/session context lives.

Functions

prune_history

remove_orphaned_tool_messages

Remove tool-role messages whose tool_call_id has no matching tool_use / tool_calls entry in a preceding assistant message.