Ronacher writes that Pi 1.0 "added MCP support via Codemode." The model gets no MCP tool definitions. It writes JavaScript that runs in the harness, in a QuickJS sandbox inside a WASM runtime with no network, no file system, no timers and…
In the News: October 8, 2026 (Midday)
Pi 1.0 routes MCP through Codemode, so tool calls run as harness-side scripts instead of going through the model's context.
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