Claude Code compacts long idle sessions before prompt cache expires
Overview
Anthropic says Claude Code now compacts long idle sessions just before the roughly one-hour prompt cache expires.
When a user resumes such a session, only the summary is reprocessed instead of the full conversation, according to the company's ClaudeDevs account on X.
On Pro and Max plans, resuming a very long conversation that would use a large share of the 5-hour usage limit now shows a warning first, Anthropic says.
Written by AI from the articles below · updated Nov 3, 12:45 PM ET
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ClaudeDevs@ClaudeDevsOfficialClaude Code compacts idle sessions to cut resume usageAIAnthropic says Claude Code now compacts long idle sessions just before the roughly one-hour prompt cache expires, so resuming reprocesses only the summary instead of the full conversation. On Pro and Max plans, resuming a very long conversation that would use a large share of the 5-hour limit now shows a warning first.
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