Pi 1.0 keeps its AI coding agent small while adding codemode, deferred tools, virtual model routing, cache warming, and transcript-aware changes. The experimental Pi Durable package extends the same ideas to long-running agentic applications.
Pi’s shift from rejecting MCP to building it in reflects a deeper design change: let MCP standardize tool access while codemode handles discovery, composition, and filtering. The result keeps large tool catalogs and noisy intermediate data away from the model’s context.
Stateless MCP (spec dated 2026-07-28) removes the legacy initialize handshake and session IDs, moving needed context into every request. Here’s how that simplifies deployments, plus practical ways to probe servers with mcp-explorer and power Datasette via datasette-mcp.