---
# claudbg-d3aj
title: Session statistics computation
status: todo
type: task
created_at: 2026-03-27T19:39:15Z
updated_at: 2026-03-27T19:39:15Z
parent: claudbg-mztt
---

Given a parsed list of SessionEntries, compute: total input/output/cache tokens (sum across all assistant message usage fields), tool call counts keyed by tool name, session duration (sum of durationMs from system messages with subtype=turn_duration), model (from first assistant message). Return a SessionStats struct.