If you're working on something where you want to keep the fine details, before you leave your seat, either instruct what to keep with /compact focus on ... or add "idl to settings.json

If you're working on something where you want to keep the fine details, before you leave your seat, either instruct what to keep with /compact focus on ... or add "idleCompaction": false to settings.json (this works in v2.1.290 and later). Long sessions, leaving your seat with them still open—doesn't that happen a lot? https://code.claude.com/docs/en/settings-reference#idlecompaction