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obsidian-vault/OpenClaw/Memory System.md

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OpenClaw Memory System OpenClaw Architecture/Documentation active 2026-02-16 2026-02-23 memory_system_architecture.md
openclaw
memory
architecture
system-design
data-flow
sqlite

OpenClaw Memory System

Source of truth for how information flows and persists

Original File: memory_system_architecture.md
Created: Evening of major OpenClaw upgrade (2026-02-16)


Overview

┌─────────────────────────────────────────────────────────────────────────────┐
│                         INFORMATION FLOW                                     │
└─────────────────────────────────────────────────────────────────────────────┘

    User Conversation
           │
           ▼
┌─────────────────────┐     ┌─────────────────────┐     ┌─────────────────────┐
│   ME (Main Agent)   │────▶│   Memory Worker     │────▶│   SQLite Database   │
│   (Real-time)       │     │   (Daily 3 AM)      │     │   (Structured)      │
└─────────────────────┘     └─────────────────────┘     └─────────────────────┘
           │                           │                           │
           │                           │                           │
           ▼                           ▼                           ▼
┌─────────────────────┐     ┌─────────────────────┐     ┌─────────────────────┐
│   Daily Notes       │     │   Query Interface   │     │   Stats/Search      │
│   (memory/*.md)     │◄────│   (On Demand)      │◄────│   (SQL/FTS)        │
└─────────────────────┘     └─────────────────────┘     └─────────────────────┘
           │
           ▼
┌─────────────────────┐
│   MEMORY.md         │
│   (Curated)         │
└─────────────────────┘
           │
           ▼
┌─────────────────────┐
│   Supermemory.ai    │
│   (Cloud Backup)    │
└─────────────────────┘

Storage Layers (6 Total)

Layer Speed Persistence Purpose
1. Session RAM Fastest Minutes-hours Working conversation context
2. Workspace Context 📝 Fast ~24 hours Session bridge between channels
3. Daily Notes 📄 Medium 30-90 days Raw daily activity
4. MEMORY.md 🧠 Slow Permanent Curated important info
5. SQLite DB 📊 Query Permanent Structured data with FTS
6. Supermemory.ai 🌐 Cloud Permanent Full cloud backup

Key Components

1. Session RAM

  • What: Current conversation context
  • Writes: Real-time
  • Survives: Crash Restart
  • Size: ~100K-250K tokens
  • Risk: Lost on compaction

2. Daily Notes (memory/*.md)

  • What: Raw daily activity, decisions, errors
  • Writes: Pre-compaction flush
  • Survives: Everything
  • Retention: 30-90 days

3. MEMORY.md

  • What: Curated long-term memory
  • Writes: Manual review
  • Survives: Everything
  • Retention: Permanent

4. SQLite Database (~/.openclaw/memory.db)

  • What: Structured tasks, decisions, facts
  • Writes: Daily 3 AM (Memory Worker cron)
  • Schema:
    memory_cells: id, scene, cell_type, salience, content, source_file, created_at
    scenes: scene, summary, item_count, updated_at
    memory_fts: full-text search index
    
  • Survives: File-based
  • Retention: Permanent

5. Supermemory.ai

  • What: Full cloud backup
  • Writes: Daily 2 AM (Python script)
  • Survives: Disk failure
  • Retention: Cloud dependent

6. Workspace Context (workspace-context.md)

  • What: Current conversation bridge
  • Writes: Continuous
  • Survives: Channel switch
  • Cleared: Nightly (~11 PM)

Cron Jobs (Memory System)

Job Time Purpose
Supermemory Backup 2:00 AM Cloud backup of all memory files
Cron Cleanup 3:00 AM Remove finished one-shot jobs
Memory Worker 3:04 AM Extract to SQLite database

Key Principles

  1. Text > Brain — Files persist, sessions don't
  2. Daily notes = raw, MEMORY.md = curated — Filter noise from signal
  3. Worker = automated structuring — Don't manually organize everything
  4. Hybrid = best of both — Human-readable + machine-queryable
  5. Multiple backups — Local + cloud + structured

Access Patterns

Main Agent Reads:

  • MEMORY.md — Every session (core identity, prefs)
  • USER.md — Every session (who Corey is)
  • SOUL.md — Every session (how to behave)
  • workspace-context.md — Every session (current state)
  • memory/*.md — During heartbeats (recent context)
  • SQLite DB — On demand (structured queries)

Memory Worker Reads:

  • IDENTITY.md — Daily 3 AM
  • SOUL.md — Daily 3 AM
  • HEARTBEAT.md — Daily 3 AM (instructions)
  • memory/YYYY-MM-DD.md — Daily 3 AM (content to extract)
  • Writes to SQLite DB

Failure Recovery

Scenario Survives Lost Recovery
Session Crash Files Session RAM Read files, reconstruct
Gateway Restart All files Session/cron state Restart, verify jobs
Disk Failure Supermemory Local files + DB Restore from cloud

File Locations

File Location
MEMORY.md ~/.openclaw/workspace/MEMORY.md
Daily Notes ~/.openclaw/workspace/memory/YYYY-MM-DD.md
SQLite DB ~/.openclaw/memory.db
Workspace Context ~/.openclaw/workspace/workspace-context.md
Architecture Doc Projects/Memory System/Memory System Architecture.md (Obsidian)


This is the source of truth for Corey's OpenClaw memory system.
Created: 2026-02-16 | Last Updated: 2026-02-23