AI Memory (File)

Stores AI conversation memories persistently in a JSON file. Memories survive Node-RED restarts.

Inputs

payload object | string

The message to store in memory

topic string

Memory operation: "store", "search", "count", or empty for get-all

Outputs

payload object | string

Original message with memory context applied

aimemory object

Memory context for AI Agent: {context: [...], maxItems}

Details

File Memory persists conversation history to disk, allowing the AI to remember context across sessions.

Configuration

Filename

JSON file name (stored in Node-RED user directory). Default: ai-memories.json

Usage with AI Agent

Connect this node before AI Agent to provide conversation context:

[Input] → [Memory File] → [AI Agent] → [Output]

Operations

Store (topic: "store")

Saves the message to the file

Search (topic: "search")

Searches memories by content

Count (topic: "count")

Returns memory count

Get All (no topic)

Returns all stored memories

Examples

Store Memory:

msg.topic = "store";
msg.payload = {
  content: "User prefers morning appointments",
  type: "preference"
};

Best Practices

• Use for long-term conversation context
• Implement cleanup logic to prevent unbounded growth
• Consider privacy implications of stored data
• Back up memory files for production