Claude Code Four-Layer Memory Architecture: CLAUDE.md + Auto Memory + Session Memory + AutoDream Consolidation

Particula Tech·high signal

Analysis of the Claude Code source leak (March 31, v2.1.88) reveals a four-layer cognitive memory architecture: CLAUDE.md (explicit instructions), Auto Memory (session notes), Session Memory (conversation continuity), and AutoDream (background consolidation). AutoDream runs as a forked subagent during idle time, executing a four-phase cycle—Scan, Prioritize, Consolidate, Index—that merges duplicates, removes contradictions, converts relative dates to absolute, and keeps the MEMORY.md index under 200 lines. One observed run consolidated 913 sessions in 8-9 minutes. Activate via /memory command and look for 'Auto-dream: on'.