Anthropic AutoDream: Claude Code Gets Background Memory Consolidation — Prunes, Merges, and Refreshes MEMORY.md Every 24 Hours

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Anthropic is quietly rolling out AutoDream, a background sub-agent that automatically consolidates Claude Code's memory files every 24 hours after 5+ sessions. It performs three operations: pruning outdated/redundant entries, merging duplicate observations into single entries, and refreshing relative dates to absolute timestamps to prevent temporal confusion. References have surfaced in recent Claude Code versions with a toggle in the /memory interface. This solves the biggest problem with auto-memory — decay and bloat over time — and validates the 'sleeping agent' pattern for maintaining long-running AI context without human curation.