Event-Driven Agent Core

Overview

Event-Driven Agent Core is an architectural pattern where agents respond to events (messages, state changes, external triggers) rather than continuously polling or running in loops.

Key Characteristics

• Agents sleep until events arrive
• Asynchronous message passing
• Reactive rather than proactive execution
• Resource-efficient
• Scalable to many agents

AG2 Implementation

AG2's v0.4 rewrite features an event-driven core with:

• Async-first execution model
• Event bus for agent communication
• Pluggable orchestration strategies
• Non-blocking operations

Benefits

• Efficiency: Agents don't waste CPU when idle
• Scalability: Support thousands of concurrent agents
• Responsiveness: React immediately to events
• Composability: Easy to add new event handlers
• Debugging: Clear event traces

Comparison to Traditional

Polling-Based

• Agents run in loops
• High CPU usage even when idle
• Harder to coordinate
• Simpler to understand

Event-Driven

• Agents react to events
• Low CPU when idle
• Better coordination
• Requires async programming

Use Cases

• Multi-agent systems
• Microservices architectures
• Real-time applications
• High-concurrency systems

Pricing

Architectural pattern, implemented in AG2.