Library · topic
Protocols
The wire-level standards agents build on — MCP and its evolution, agent-to-agent communication, and what protocol changes mean for architectures already in production. Read these when a spec revision lands, before it lands on you.
- Deep diveverified 2026-08-25
Should you write an Agent Skill or build an MCP server?
An MCP server gives an agent reach it does not have — a connection, a credential, a running process. An Agent Skill gives it judgment about tools it c…
- Deep diveverified 2026-08-16
What is the A2A protocol and when should you use it?
A2A (Agent-to-Agent) is the Linux Foundation open protocol for cross-vendor agent interop: JSON-RPC over HTTP with Agent Cards for discovery, task lif…
- Deep diveverified 2026-07-28
MCP went stateless: the 2026-07-28 spec revision
The largest MCP revision since launch makes the protocol stateless: the initialize handshake and sessions are gone, every tool call is a self-containe…