Mema Brain (Centralized Memory)

Standardized memory system providing a Metadata Index (SQLite) and Short-Term Context (Redis).

Core Components

1. Document Index (SQLite)

• Primary Path: ~/.openclaw/memory/main.sqlite
• Capability: Stores file paths, titles, and tags.
• Note: This is a Metadata Index only. It does not ingest or provide full-text search of file contents.

2. Short-Term Memory (Redis)

• Key Prefix: mema:mental:*
• Purpose: Ephemeral state management and cross-session context passing.
• TTL: Default 6 hours (21600 seconds).

Core Workflows

Indexing Knowledge

Record a file's location and tags in the local database.

• Usage: python3 $WORKSPACE/skills/mema/scripts/mema.py index [--tag ]

Searching Index

List indexed paths filtered by tag or recency.

• Usage: python3 $WORKSPACE/skills/mema/scripts/mema.py list [--tag ]

Mental State (Redis)

Manage key-value pairs in the mema:mental namespace.

• Set: python3 $WORKSPACE/skills/mema/scripts/mema.py mental set [--ttl N]
• Get: python3 $WORKSPACE/skills/mema/scripts/mema.py mental get

Setup

1. Copy env.example.txt to .env.
2. Configure REDIS_HOST and REDIS_PORT (defaults: localhost:6379).
3. Initialize the SQLite schema:

python3 $WORKSPACE/skills/mema/scripts/mema.py init

Reliability & Security

• Data Privacy: All data is stored locally.
• Network Safety: Only point REDIS_HOST to trusted instances.
• Path Isolation: Database operations are confined to the ~/.openclaw/memory directory.