Auto-Dream Consolidation Pattern overview

Memory consolidation pattern where a background subagent periodically reviews accumulated memories and rewrites them into a coherent, pruned form. The process reads all existing memory files, identifies contradicted facts (deletes them), duplicate entries (merges them), stale observations (prunes them), and valid facts (keeps them), then rewrites the memory directory with a clean, organized structure. Claude Code implements this as the auto-dream cycle — a forked subagent with restricted tool surface (read-only Bash, scoped Write) that fires after a configurable number of sessions. The consolidation lock prevents concurrent dream processes from corrupting memory files.