https://xiongpin.dev/tags/mcp/ Recent content in Mcp on Pin Xiong Hugo -- gohugo.io en © 2026 Pin Xiong Sun, 01 Nov 2026 00:00:00 +0000 https://xiongpin.dev/posts/agentcore-a2a-multi-agent-registry/ Sun, 01 Nov 2026 00:00:00 +0000 https://xiongpin.dev/posts/agentcore-a2a-multi-agent-registry/ <p>Four protocols walk into one project. An orchestrator that speaks AG-UI streams its answers as server-sent events, two specialists answer A2A tasks — one of them for 115 seconds past any synchronous read timeout — and a billing tool server answers MCP calls on EC2 instance types I chose myself. On top of the fleet sits a catalog: the Agent Registry, shared across accounts through RAM, whose semantic search finds the record named billing when asked for payment processing. Every number below was measured in one account, <code>us-east-1</code>.</p>