Pi Extensions for the Pi Coding Agent

Pi Extensions is an open-source TypeScript monorepo maintained by narumiruna that provides independently installable extensions and reusable libraries for the Pi Coding Agent. Every package is published separately under the @narumitw npm scope, so users install only what they need. The project is licensed under MIT and hosted on GitHub, where it has accumulated 370 stars and 65 forks as of mid-2026.

What It Is

Pi Extensions is a collection of plug-in packages that extend the capabilities of the Pi Coding Agent — a terminal-based AI coding assistant. Rather than shipping a monolithic feature set, the project organizes extensions into focused, composable units across five functional areas: coding and delegation, browser and research, task and workspace workflows, accounts and data, and status and observability. Each extension is a standalone npm package that can be installed permanently with pi install or tried temporarily with pi -e.

Extension Categories and Highlights

The repository groups its stable extensions into well-defined categories:

• Coding and delegation: pi-lsp brings language-server diagnostics and code actions for JavaScript, TypeScript, Python, Rust, Go, Ruby, C/C++, JVM, .NET, Swift, shell, and infrastructure formats. pi-subagents enables delegating isolated work in single, parallel, or chained execution modes. pi-plan-mode adds a read-only /plan collaboration step before implementation begins.
• Browser and research: pi-chrome-devtools connects to Chrome via the DevTools Protocol to inspect tabs, navigate pages, evaluate JavaScript, and capture screenshots. pi-firecrawl integrates Firecrawl for page scraping, site crawling, URL discovery, and web search.
• Task and workspace workflows: pi-goal keeps the agent working until a goal is verified complete, with an optional ordered queue. pi-worktree manages Git worktrees while carrying the Pi session into another workspace. pi-caffeinate prevents system sleep during long-running prompts.
• Accounts and data: pi-accounts switches named OpenAI Codex, Anthropic, and GitHub Copilot OAuth accounts. pi-sync syncs Pi settings and optional sessions through Cloudflare R2 or S3-compatible storage.
• Status and observability: pi-statusline shows model, tools, Git state, context usage, tokens, cost, and time in a configurable footer. pi-langfuse sends agent runs, token usage, costs, and tool activity to Langfuse. pi-github-pr surfaces pull request checks, reviews, and comment counts via the gh CLI.

Architecture and Development Model

The repository is a TypeScript monorepo using npm workspaces. Each active package contains its own package.json, README.md, LICENSE, tsconfig.json, and TypeScript source under src/. Stable extensions expose a thin src/index.ts Pi entrypoint; reusable libraries publish built ESM and type declarations from dist/. The pi-tui-kit library provides reusable navigation helpers and declarative UI flows for extension authors. Versioning is managed through Changesets, with packages versioned independently and published with npm provenance. The release workflow creates package-specific tags and GitHub releases such as @narumitw/pi-goal@0.50.0.

Experimental Extensions

Several extensions are published and installable but carry an explicit experimental lifecycle warning, meaning their interaction models and APIs may change between releases. These include pi-analytics for private local metrics, pi-chat for ephemeral peer-to-peer chat rooms, pi-file-context for attaching file snapshots with Git provenance to prompts, pi-fleet for managing multiple Pi processes in Ghostty splits, pi-recall for saving and quoting messages across sessions, and pi-workflow for an integrated Plan-to-Goal handoff combining pi-plan-mode and pi-goal.

Update: @narumitw/pi-workflow@0.4.0

The latest release as of August 19, 2026 is @narumitw/pi-workflow@0.4.0, reflecting active development across the monorepo. The repository was last pushed on August 19, 2026, and the project shows consistent release cadence with independent package versioning. Several earlier packages — including pi-biome-lsp, pi-python-lsp, pi-codex-accounts, pi-codex-usage, and pi-retry — have been deprecated and replaced by more capable successors, signaling ongoing architectural refinement.