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Claude Code automatically compacts long sessions, losing detail

By PulseAugur Editorial · [1 sources] ·

Claude Code, a specialized version of Anthropic's AI model, automatically compacts long sessions after approximately 54 minutes of inactivity. This compaction process, which occurs before the one-hour prompt cache expires, summarizes the conversation and results in a loss of detail. Users can disable this feature by setting "idleCompaction": false in their settings.json file. AI

IMPACT This feature impacts how users interact with long coding sessions, potentially affecting workflow and data retention.

RANK_REASON Product feature announcement for a specialized AI tool.

Read on Mastodon — mastodon.social →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude Code automatically compacts long sessions, losing detail

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14 / 100
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Tool
Product feature announcement for a specialized AI tool.
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Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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product
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High
Clearly on-topic for AI-industry coverage.
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Breaking (< 6h)
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Full methodology in our editorial standards.

COVERAGE [1]

  1. Mastodon — mastodon.social TIER_1 English(EN) · shellonline ·

    Leave a 200K+ token Claude Code session idle for about 54 minutes and it now compacts itself, just before the one-hour prompt cache expires (2.1.299). Your next

    Leave a 200K+ token Claude Code session idle for about 54 minutes and it now compacts itself, just before the one-hour prompt cache expires (2.1.299). Your next message skips reprocessing the full history, but a compaction is a summary and detail is lost. "idleCompaction": false …

    LINKS code.claude.com/…/changelog shell.online

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