AI tool: Pi 1.0

Pi 1.0 | Earendil

Core Release: Pi 1.0

Earendil has officially shipped Pi 1.0, a hardened, minimal, and extensible agent harness designed to serve as a stable coding agent and substrate for agentic applications.

Key new features in Pi 1.0 include:

• Codemode: Native support for MCP, non-LLM models (e.g., Jev), and image models.
  
  
• Model Extensions: Support for virtual models and deferred tool loading.
  
  
• Performance: Cache warming for Anthropic models.
  
  
• Dynamic Control: Mid-conversation system messages for transcript-aware prompt and tool adjustments.
  
  
• UI Updates: Full-screen mode enabled by default and a new TUI theme.
  
  

Experimental Project: Pi Durable

Alongside Pi 1.0, Earendil introduced Pi Durable, an experimental package designed for long-running agentic applications outside the terminal. It provides a flexible architecture for longer-running tasks and multi-surface interactions while retaining Pi’s core principles of minimalism and super malleability.

Availability

• License: MIT License.
  
  
• Documentation & Code: Available at pi.dev and GitHub.
  
  
• Installation: Available via terminal install script (curl -fsSL [https://pi.dev/install.sh](https://pi.dev/install.sh) | sh) or npm package (npm install @earendil-works/pi-durable).