Ishu Agrawal(@ishuagra02):Great change! Just remember that compaction still consumes usage by reading your ENTIRE chat context, which can be expensive if near the 1M context. I found it better to start new sessions since Opus 5.5 is so good at refetching context.

Ishu Agrawal

@ishuagra02

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参加 December 2016

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Ishu Agrawal@ishuagra02

2026.10.14 22:31

Great change! Just remember that compaction still consumes usage by reading your ENTIRE chat context, which can be expensive if near the 1M context. I found it better to start new sessions since Opus 5.5 is so good at refetching context.

Lydia Hallie ✨@lydiahallie

2026.10.14 21:36

We recently added idle compaction to Claude Code! It now compacts long idle sessions right before the prompt cache expires (~1h). If you come back to it later, it only has to reprocess the summary instead of the entire conversation, which saves you some usage.