Pi coding agent pulls a 180 and adds MCP support
To maintain minimalism, a new harness layer has been folded into a separate component
On Thursday, the Pi coding agent achieved its 1.0 milestone while undergoing treatment for whiplash. Earendil, the company that acquired Pi in April 2026, revealed a significant addition: Model Context Protocol (MCP) support. Initially dismissed by Pi creator Mario Zechner, MCP has since been enhanced by the developers. This decision, according to Earendil, was driven by the fact that things change.
The improvements in MCP have also facilitated the integration of other capabilities, such as Jev decision model integration. Pi's design, described as a "hardened, minimal, extensible agent harness," sets it apart from a Python web framework like Django. Recent features include Codemode, extension support for virtual models, and a new default full-screen mode.
Additionally, Earendil has introduced Pi Durable, a new substrate designed for building long-running agentic applications. Pi Durable acts as a separate layer from the Pi coding agent, handling conversation management and storage via SQLite and JSONL. Together, Pi and Pi Durable share a commitment to minimalism and malleability.
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