Earendil ships Pi 1.0 and experimental Pi Durable

Pi 1.0

Earendil released Pi 1.0, a minimal, extensible agent framework, plus Pi Durable, an experimental package for building long-running agent applications. Pi 1.0 adds native MCP support in Codemode, virtual model extensions, deferred tool loading, Anthropic model cache warming and mid-conversation system messages, and updates TUI themes with fullscreen mode on by default.

Why it matters: Earendil keeps long-running agent support in a separate experimental package so Pi stays minimal for coding and terminal use.