Pi 1.0 adds native MCP support, routing tool calls through Codemode sandbox scripts

说不用 MCP 的人把 MCP 发进了核心：协议靠降级存活

Pi 1.0 ships native MCP support and by default calls tools through Codemode sandbox scripts, moving intermediate data handling and composition out of the main model context. The piece traces creator's shift from rejecting MCP to accepting it, arguing the protocol should shrink to a tool catalog and discovery mechanism while code handles execution and data processing. Pi Durable, released the same day, adds checkpoint recovery, history branching and mid-run intervention, but is labeled experimental: checkpoints don't cover VM or container state, and storage doesn't support concurrent writes across processes.

Why it matters: Pi hands MCP tool calls to sandbox scripts by default, splitting tool discovery from data handling so less intermediate data lands in the model context.