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Native Pi with a visual workspace, run controls, recovery, and agent teams.

Pi Coding Agent ⊂ Pi-Harness

Download · Create a custom skin · Screenshots

Pi-Harness brings Pi Coding Agent into a desktop workspace for macOS, Windows, and Linux. Manage conversations, projects, files, Git, models, and Skills in one place, with tools to inspect runs, control budgets, recover work, and coordinate agent teams.

Native Pi runs the agent. Your Pi sessions, configuration, tools, Skills, and extensions remain compatible with Pi, and you can continue using Pi outside the desktop app.

Pi-Harness is the operational superset of Pi Coding Agent: native Pi capabilities form the foundation, with observation, control, recovery, orchestration, and a visual workspace added around them.

Start a standalone chat or open a project and resume a Pi session. Follow streaming replies, thinking, tool calls, images, and changed files; choose the model, thinking level, and tools, or compact the conversation. Workspace Tools gives you access to Harness and Agents while preserving your conversation and draft.

Browse and search files, preview media and documents, and edit readable text with syntax highlighting, line numbers, find, undo/redo, explicit save, and external-change conflict protection. The lightweight editor keeps file editing focused. Git provides diffs, history, activity graphs, commits, optional AI commit messages, and worktrees.

Configure Pi-compatible providers with presets or custom endpoints, manage credentials, discover models where supported, test connections, and choose your chat model. Use supported image models for text-to-image or image editing, then download the results.

Browse built-in and local Skills, edit them, and manage Pi packages and extensions from Capabilities. Type @ in the composer to search and invoke an installed Skill. Connect MCP through supported packages. Optional add-ons such as Superpowers and Odai can be installed, updated, or removed when you choose.

Inspect Runs, Trace, Replay, timelines, and tool activity. Compare runs, follow forks and retries in the Run Tree, review tokens, cost, and duration, and browse artifacts and project statistics.

Set tool policies and per-run budgets, create checkpoints, and resume, fork, or retry work. Evaluation, Diagnostics, and regression baselines help you check results and investigate failures using recorded run evidence.

Coordinate Pi agents with reusable teams and templates. Assign tasks with dependencies and priorities, schedule them manually, sequentially, or in parallel, pass results and artifacts to the next task, and use review gates. Worktrees keep agent changes separate; budgets, conflict hints, and pause, resume, abort, retry, skip, and reassign controls help you manage the work.

Browse Claude Code, Codex (including desktop and archived conversations), Cursor, Cursor Agent, Gemini CLI, OpenCode, and Pi history together. Search, filter by source, project, or date range, and add custom history folders.

View the original conversation in read-only mode, preview a handoff, and edit the next instruction before continuing in a new Pi chat under the same project. Browsing, local previews, and scan retries use no model tokens. Optional AI summaries use your configured model only when requested.

Open Architecture in Workspace to explore modules, dependencies, entrypoints, and source references. Filter by package, focus on a module, browse map pages, zoom, or use fullscreen. Save analysis snapshots, see when source changes make them stale, and export JSON, offline HTML, or the current view as PNG.

Local analysis uses no model tokens; AI descriptions are optional. JavaScript, TypeScript, and Vue import relationships are analyzed locally, while other supported languages have a file-level index. The analysis shows its coverage and limitations.

Choose classic palettes, Ming themes, Starship Cockpit, macOS 27 backgrounds, or an imported custom skin. New installations start in Dark. Customize chat display names, app icons, local background images, window and screen glow, and the input flame effect. Startup animation accompanies the environment check; mascot-free builds retain the general appearance controls.

Check Node.js, npm, PATH, Pi Coding Agent, and the active configuration. Install, update, or repair Pi where supported, inspect environment diagnostics, manage configuration backups, and check for app updates. The interface is available in eight languages.

Use the Pi-Harness Custom Skin Starter to create the visual style you want.

1. Use the starter repository as a template or download it.
2. Open it with your coding agent and describe your preferred style using the included prompt.
3. Import the completed project from Settings → Theme → Import Skin.

The multilingual starter includes guidance for colors, previews, wallpapers, and optional character artwork. Keep your skin in its own repository to update and share it independently.

Product screenshots are grouped by theme. Browse the complete screenshot index for additional views.

Download a published installer from GitHub Releases and choose the file for your platform.

Packaged users do not need to clone the repository or install pnpm. Pi-Harness can help set up Pi and its environment where supported.

macOS community builds may be unsigned. If the first launch is blocked, use System Settings → Privacy & Security → Open Anyway.

1. Launch Pi-Harness and check the environment in Overview.
2. Configure a provider, test the connection, and select a model.
3. Start a standalone chat or open a project.
4. Start or resume a Pi session, then work with conversations, files, and Git.
5. Open Workspace Tools for Harness controls or agent teams.

The desktop app supports macOS Apple Silicon, macOS Intel, Windows x64, and Linux x64. Pi Coding Agent can be installed or repaired from the app where supported. Running from source requires Node.js ≥ 22.22.2 and pnpm 9.12.1.

• Screenshot index
• Changelog

Pi-Harness is built around the official Pi Coding Agent and Pi Agent Harness.

Created and maintained by wangmiao · [email protected].

Pi-Harness is licensed under the GNU Affero General Public License v3.0 only (AGPL-3.0-only).

Copyright © 2026 wangmiao.