Castella A2A Protocol Integration

A2A (Agent-to-Agent) is an open protocol for AI agent communication and discovery. Castella provides a client for connecting to A2A agents and displaying their information.

When to use: "connect to A2A agent", "A2AClient", "agent card", "send message to agent", "list agent skills", "A2A protocol", "stream agent response"

Quick Start

Connect to an A2A agent:

from castella.a2a import A2AClient

client = A2AClient("http://agent.example.com")
print(f"Connected to: {client.name}")
print(f"Skills: {[s.name for s in client.skills]}")