protocols
4 posts — newest first.
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You've Been Governing the Agents You Run. Here Come the Ones You Don't.
Sierra and Meta propose a front door for agents acting on a customer's behalf. The hard questions are the ones the spec has not answered yet.
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MCP 2026-07-28 shipped: the stateless core is the headline, header routing is the story
The final MCP spec deletes sessions, mirrors requests into HTTP headers, and turns elicitation into multi-round-trip calls. What breaks, and what to audit.
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MCP is the hands, A2A is the handshake: the two-layer agent protocol stack
A2A hit v1.0 with 150+ orgs behind it. MCP connects agents to tools; A2A connects agents to each other. What the two-layer stack means for platform teams.
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How TCP/IP Actually Works — and Why the Handshake Still Bites You
Every API call and model request rides on TCP/IP. The three-way handshake, flow control, and why round-trips and TIME_WAIT shape your latency.