Tag

protocols

Covered in Agents & Protocols, where the background and the sources for this subject live.

Agents & ProtocolsSep 14, 2026

Does MCP verify tool definitions the way it verifies skills?

SEP-2640 reached Final status and landed in the MCP docs on 13 September 2026. It requires hosts to verify every skill file against a SHA-256 digest and byte size, and binds approval to that manifest so one changed file revokes it. The tools primitive specifies none of this. MCP now has two content surfaces with opposite integrity models.

3 min read

Agents & ProtocolsAug 19, 2026Updated Sep 14, 2026

How does the Model Context Protocol actually work?

The Model Context Protocol is a JSON-RPC 2.0 layer that lets an AI client discover and call capabilities exposed by separate servers. It defines three primitives: tools, resources and prompts. Since revision 2026-07-28 it is stateless, negotiating per request rather than per session. It standardises transport and discovery. Authorisation stays your job.

6 min read