Pi
Pi is a minimal agent harness designed to adapt to your workflow. Its core stays small; extensions, skills, prompt templates, and themes provide customization.
Features
Section titled “Features”- Extensibility: TypeScript extensions add tools, commands, and interface behavior. Bundle extensions, skills, prompts, and themes as packages distributed through npm or Git.
- Model choice: Supports providers including Anthropic, OpenAI, Google, OpenRouter, and Ollama, with model switching during a session.
- Session history: Conversations form a tree that can be revisited and branched; sessions can be exported to HTML.
- Integration: Interactive terminal interface, print/JSON output, RPC over standard input/output, and an SDK for embedding in applications.
- Minimal defaults: Subagents, plan mode, and permission prompts are left to extensions or custom workflows. MCP is built in.
Getting started
Section titled “Getting started”npm install -g --ignore-scripts @earendil-works/pi-coding-agentpiRelated
Section titled “Related”- Agent Harness — the layer that turns a model into an agent.
- Oh My Pi — a coding agent forked from Pi with additional built-in capabilities.
Sources
Section titled “Sources”- Pi website — features, installation, and customization (accessed 2026-10-09).