Pi splits in two: minimalist coding agent branches out Pi Durable for long-running agent runtimes

solyarisoftware · x · 2026-10-02

Pi 1.0 splits the project in two directions: Pi stays a minimalist coding agent, while the complex long-running agent runtime becomes a separate branch called Pi Durable.

Pi 1.0 updates:

Codemode default context slimmed from 5,300 to 3,300 tokens without losing capability
MCP moves toward stability with OAuth, credentials, and an Auth Server, paired with Tool Search and Deferred Tools so models don't need to see every tool
Radius model router is now integrated into /login, with optional Radius MCP setup

Pi Durable design highlights:

Persistent tasks: state and checkpoints survive sleep, container restarts, and crashes; tools are classified by side effects—read-only ops like search can be re-run, while side-effectful ops like sending email or deploying are never re-executed
Multiple concurrent conversations per runtime, each with its own model, tools, context, and state; a new conversation doubles as a subagent
Background compaction: old context is summarized ahead of time without blocking the main task, with original history kept in storage
Terminal decoupled from the agent: interactive coding stays in Pi; long-lived work moves to Pi Durable

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Pi splits in two: minimalist coding agent branches out Pi Durable for long-running agent runtimes

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