AgentDB Memory Patterns

Implement persistent memory patterns for AI agents using AgentDB. Includes session memory, long-term storage, pattern learning, and context management. Use when building stateful agents, chat systems, or intelligent assistants.

What This Skill Does

Provides memory management patterns for AI agents using AgentDB's persistent storage and ReasoningBank integration. Enables agents to remember conversations, learn from interactions, and maintain context across sessions.

Performance: 150x-12,500x faster than traditional solutions with 100% backward compatibility.

Prerequisites

Node.js 18+
AgentDB v1.0.7+ (via agentic-flow or standalone)
Understanding of agent architectures

Quick Start with CLI

Initialize AgentDB

# Initialize vector database
npx agentdb@latest init ./agents.db

# Or with custom dimensions
npx agentdb@latest init ./agents.db --dimension 768

# Use preset configurations
npx agentdb@latest init ./agents.db --preset large

# In-memory database for testing
npx agentdb@latest init ./memory.db --in-memory

Start MCP Server for Claude Code

# Start MCP server (integrates with Claude Code)
npx agentdb@latest mcp

# Add to Claude Code (one-time setup)
claude mcp add agentdb npx agentdb@latest mcp

Create Learning Plugin

# Interactive plugin wizard
npx agentdb@latest create-plugin

# Use template directly
npx agentdb@latest create-plugin -t decision-transformer -n my-agent

# Available templates:
# - decision-transformer (sequence modeling RL)
# - q-learning (value-based learning)
# - sarsa (on-policy TD learning)
# - actor-critic (policy gradient)
# - curiosity-driven (exploration-based)

Quick Start with API

import { createAgentDBAdapter } from 'agentic-flow/reasoningbank';

// Initialize with default configuration
const adapter = await createAgentDBAdapter({
  dbPath: '.agentdb/reasoningbank.db',
  enableLearning: true,      // Enable learning plugins
  enableReasoning: true,      // Enable reasoning agents
  quantizationType: 'scalar', // binary | scalar | product | none
  cacheSize: 1000,            // In-memory cache
});

// Store interaction memory
const patternId = await adapter.insertPattern({
  id: '',
  type: 'pattern',
  domain: 'conversation',
  pattern_data: JSON.stringify({
    embedding: await computeEmbedding('What is the capital of France?'),
    pattern: {
      user: 'What is the capital of France?',
      assistant: 'The capital of France is Paris.',
      timestamp: Date.now()
    }
  }),
  confidence: 0.95,
  usage_count: 1,
  success_count: 1,
  created_at: Date.now(),
  last_used: Date.now(),
});

// Retrieve context with reasoning
const context = await adapter.retrieveWithReasoning(queryEmbedding, {
  domain: 'conversation',
  k: 10,
  useMMR: true,              // Maximal Marginal Relevance
  synthesizeContext: true,    // Generate rich context
});

Memory Patterns

1. Session Memory

class SessionMemory {
  async storeMessage(role: string, content: string) {
    return await db.storeMemory({
      sessionId: this.sessionId,
      role,
      content,
      timestamp: Date.now()
    });
  }

  async getSessionHistory(limit = 20) {
    return await db.query({
      filters: { sessionId: this.sessionId },
      orderBy: 'timestamp',
      limit
    });
  }
}

2. Long-Term Memory

// Store important facts
await db.storeFact({
  category: 'user_preference',
  key: 'language',
  value: 'English',
  confidence: 1.0,
  source: 'explicit'
});

// Retrieve facts
const prefs = await db.getFacts({
  category: 'user_preference'
});

3. Pattern Learning

// Learn from successful interactions
await db.storePattern({
  trigger: 'user_asks_time',
  response: 'provide_formatted_time',
  success: true,
  context: { timezone: 'UTC' }
});

// Apply learned patterns
const pattern = await db.matchPattern(currentContext);

Advanced Patterns

Hierarchical Memory

// Organize memory in hierarchy
await memory.organize({
  immediate: recentMessages,    // Last 10 messages
  shortTerm: sessionContext,    // Current session
  longTerm: importantFacts,     // Persistent facts
  semantic: embeddedKnowledge   // Vector search
});

Memory Consolidation

// Periodically consolidate memories
await memory.consolidate({
  strategy: 'importance',       // Keep important memories
  maxSize: 10000,              // Size limit
  minScore: 0.5                // Relevance threshold
});

CLI Operations

Query Database

# Query with vector embedding
npx agentdb@latest query ./agents.db "[0.1,0.2,0.3,...]"

# Top-k results
npx agentdb@latest query ./agents.db "[0.1,0.2,0.3]" -k 10

# With similarity threshold
npx agentdb@latest query ./agents.db "0.1 0.2 0.3" -t 0.75

# JSON output
npx agentdb@latest query ./agents.db "[...]" -f json

Import/Export Data

# Export vectors to file
npx agentdb@latest export ./agents.db ./backup.json

# Import vectors from file
npx agentdb@latest import ./backup.json

# Get database statistics
npx agentdb@latest stats ./agents.db

Performance Benchmarks

# Run performance benchmarks
npx agentdb@latest benchmark

# Results show:
# - Pattern Search: 150x faster (100µs vs 15ms)
# - Batch Insert: 500x faster (2ms vs 1s)
# - Large-scale Query: 12,500x faster (8ms vs 100s)

Integration with ReasoningBank

import { createAgentDBAdapter, migrateToAgentDB } from 'agentic-flow/reasoningbank';

// Migrate from legacy ReasoningBank
const result = await migrateToAgentDB(
  '.swarm/memory.db',           // Source (legacy)
  '.agentdb/reasoningbank.db'   // Destination (AgentDB)
);

console.log(`✅ Migrated ${result.patternsMigrated} patterns`);

// Train learning model
const adapter = await createAgentDBAdapter({
  enableLearning: true,
});

await adapter.train({
  epochs: 50,
  batchSize: 32,
});

// Get optimal strategy with reasoning
const result = await adapter.retrieveWithReasoning(queryEmbedding, {
  domain: 'task-planning',
  synthesizeContext: true,
  optimizeMemory: true,
});

Learning Plugins

Available Algorithms (9 Total)

Decision Transformer - Sequence modeling RL (recommended)
Q-Learning - Value-based learning
SARSA - On-policy TD learning
Actor-Critic - Policy gradient with baseline
Active Learning - Query selection
Adversarial Training - Robustness
Curriculum Learning - Progressive difficulty
Federated Learning - Distributed learning
Multi-task Learning - Transfer learning

List and Manage Plugins

# List available plugins
npx agentdb@latest list-plugins

# List plugin templates
npx agentdb@latest list-templates

# Get plugin info
npx agentdb@latest plugin-info <name>

Reasoning Agents (4 Modules)

PatternMatcher - Find similar patterns with HNSW indexing
ContextSynthesizer - Generate rich context from multiple sources
MemoryOptimizer - Consolidate similar patterns, prune low-quality
ExperienceCurator - Quality-based experience filtering

Best Practices

Enable quantization: Use scalar/binary for 4-32x memory reduction
Use caching: 1000 pattern cache for <1ms retrieval
Batch operations: 500x faster than individual inserts
Train regularly: Update learning models with new experiences
Enable reasoning: Automatic context synthesis and optimization
Monitor metrics: Use stats command to track performance

Troubleshooting

Issue: Memory growing too large

# Check database size
npx agentdb@latest stats ./agents.db

# Enable quantization
# Use 'binary' (32x smaller) or 'scalar' (4x smaller)

Issue: Slow search performance

# Enable HNSW indexing and caching
# Results: <100µs search time

Issue: Migration from legacy ReasoningBank

# Automatic migration with validation
npx agentdb@latest migrate --source .swarm/memory.db

Performance Characteristics

Vector Search: <100µs (HNSW indexing)
Pattern Retrieval: <1ms (with cache)
Batch Insert: 2ms for 100 patterns
Memory Efficiency: 4-32x reduction with quantization
Backward Compatibility: 100% compatible with ReasoningBank API