Why it matters
MCP is becoming the default wire protocol between agents, tools, and data. A major spec revision changes how every agent builder authenticates, scales, and wires up context for tool calls.
The tokenmaxxing angle
The stateless core changes how MCP servers scale under load (no sticky sessions), which affects per-request infra cost; Extensions and Tasks change how much context and how many round-trips a tool call needs.
From the organizers
Description states the MCP 2026-07-28 spec ships with a stateless core, an Extensions framework, MCP Apps, and Tasks; hosted by Manufact (YC S25), which is also releasing mcp-use v2 that night.