<div align="center">
<img src="./docs/logo.png" alt="Munder Difflin, the agent harness to run an office of your clones" width="180">
# Munder Difflin
### Agent harness to run an office of your clones
<p>
<a href="https://trendshift.io/repositories/46562" target="_blank" rel="noopener noreferrer"><img alt="GitHub Trending: #1 Repository of the Day" src="./docs/badge-github-trending.png" width="250" height="54"></a>
<a href="https://www.producthunt.com/products/munder-difflin?embed=true&utm_source=badge-top-post-badge&utm_medium=badge&utm_campaign=badge-munder-difflin" target="_blank" rel="noopener noreferrer"><img alt="Munder Difflin, #5 Product of the Day on Product Hunt" src="https://api.producthunt.com/widgets/embed-image/v1/top-post-badge.svg?post_id=1221363&theme=light&period=daily" width="250" height="54"></a>
</p>
<img src="./docs/media/floor.png" alt="The Munder Difflin office floor: agents at desks working in parallel, with the Command Center and a live agent terminal on the right" width="1240">
**Free, open source and performant.** A multi-agent harness that works with the
subscriptions you already pay for, on their hourly limits. It turns the terminal coding CLI
you already run into a clone of you, one that keeps working while you're away and
coordinates a whole office of agents on your own machine.
Wraps [Claude Code](https://claude.com/claude-code), Antigravity (Gemini), OpenAI Codex,
**xAI Grok**, **Kimi Code**, **Gemini CLI**, **Qwen**, **OpenCode**, **Crush**,
**pi.dev**, **GitHub Copilot CLI**, and **Cursor**, with bring-your-own keys and local LLMs.
Agents that message, route, and remember, coordinated by **your clone** (Michael) and
visualized as avatars at work on a shared office floor.
<p>
<em>Electron ยท React ยท TypeScript ยท Pixi.js ยท xterm.js ยท node-pty</em>
</p>
<p>
<a href="./LICENSE"><img alt="License: MIT" src="https://img.shields.io/badge/license-MIT-F4D35E.svg?style=flat-square&labelColor=6E1423"></a>
<a href="./CHANGELOG.md"><img alt="Version: 0.5.6" src="https://img.shields.io/badge/version-0.5.6-F4D35E.svg?style=flat-square&labelColor=6E1423"></a>
<a href="https://github.com/chaitanyagiri/munder-difflin/releases"><img alt="Downloads across all releases" src="https://img.shields.io/github/downloads/chaitanyagiri/munder-difflin/total?style=flat-square&label=downloads&color=F4D35E&labelColor=6E1423"></a>
<img alt="Status: pre-release" src="https://img.shields.io/badge/status-pre--release-F4F1EA.svg?style=flat-square&labelColor=6E1423">
<img alt="Platform: macOS | Windows | Linux" src="https://img.shields.io/badge/platform-macOS%20%7C%20Windows%20%7C%20Linux-F4F1EA.svg?style=flat-square&labelColor=6E1423">
<a href="./CONTRIBUTING.md"><img alt="PRs welcome" src="https://img.shields.io/badge/PRs-welcome-F4D35E.svg?style=flat-square&labelColor=6E1423"></a>
<a href="https://munderdiffl.in/blog/"><img alt="Blog" src="https://img.shields.io/badge/blog-guides%20%26%20postmortems-F4D35E.svg?style=flat-square&labelColor=6E1423"></a>
<a href="https://discord.gg/SEDzP5ZPk5"><img alt="Discord" src="https://img.shields.io/badge/Discord-join%20the%20office-F4D35E.svg?style=flat-square&labelColor=6E1423"></a>
</p>
<br>
<!-- Inline player renders on github.com (raw URL required; relative paths only link). -->
<video src="https://github.com/chaitanyagiri/munder-difflin/raw/main/docs/media/hero.mp4" controls muted loop playsinline width="820">
<a href="https://github.com/chaitanyagiri/munder-difflin/raw/main/docs/media/hero.mp4">โถ Watch the floor: Munder Difflin running a hive of Claude Code agents</a>
</video>
<br><br>
**[โฌ Download 0.5.6 for macOS, Windows or Linux](https://harnessmd.com/download)**
<sub>macOS builds are signed and notarized. You do not need to build from source to use it.
The open source build is on the <a href="https://github.com/HarnessMD/munder-difflin/releases">GitHub releases page</a>.</sub>
**Cancel your Granola and Wispr Flow subscriptions.** It dictates into any app and transcribes your
meetings, all running locally.
**New here?** Start with the [install guide](https://munderdiffl.in/blog/how-to-install-and-use-munder-difflin/), then
[your first hour](https://munderdiffl.in/blog/your-first-hour-with-munder-difflin/), and see [every agent on our own floor](https://munderdiffl.in/blog/ai-agent-use-cases-our-office/).
<sub><b>Launch offer:</b> Pro is free for everyone until Saturday 24 October 2026: download the app and sign in.
After that the Pro annual plan is $150 USD, adjusted for purchasing power in different countries and as low as $100 a
year. <a href="https://app.harnessmd.com/console/license">Get Pro</a></sub>
</div>
---
> [!NOTE]
> **The world's best agents. The world's worst paper company.**
> Munder Difflin takes the terminal-agent CLIs you already run (`claude`, `agy`, `codex`, `grok`,
> `kimi`, `qwen`, `opencode`, `crush`, `pi`, and `copilot`) and turns them
> into a self-coordinating team: each agent gets long-term memory, a mailbox, and a desk on a 2D
> office floor, and **your clone** (Michael) routes work between them while you watch. He's the
> boss of the floor; you're still the boss of him.
## Contents
- [Supported agents](#supported-agents)
- [What it is](#what-it-is)
- [How it works](#how-it-works)
- [Features](#features)
- [Getting started](#getting-started)
- [Architecture & project structure](./docs/ARCHITECTURE.md)
- [Roadmap](#roadmap)
- [Contributing](#contributing)
- [Telemetry](#telemetry)
- [License](#license)
- [Acknowledgements](#acknowledgements)
## Supported agents
**Bring the CLI you already pay for.** Every one of these runs as a real process in its own
terminal, with your existing subscription and its hourly limits. If it runs in a terminal, it
can run here.
<p>
<a href="https://docs.claude.com/en/docs/claude-code"><kbd>Claude Code</kbd></a>
<a href="https://github.com/openai/codex"><kbd>Codex ยท GPT</kbd></a>
<a href="https://x.ai/cli"><kbd>Grok ยท xAI</kbd></a>
<a href="https://www.kimi.com/code"><kbd>Kimi Code</kbd></a>
<a href="https://github.com/google-gemini/gemini-cli"><kbd>Gemini CLI</kbd></a>
<a href="https://antigravity.google/docs/cli-overview"><kbd>Antigravity ยท Gemini</kbd></a>
<a href="https://github.com/QwenLM/qwen-code"><kbd>Qwen</kbd></a>
<a href="https://opencode.ai/docs"><kbd>OpenCode</kbd></a>
<a href="https://github.com/charmbracelet/crush"><kbd>Crush ยท Charm</kbd></a>
<a href="https://pi.dev/docs/latest"><kbd>Pi</kbd></a>
<a href="https://docs.github.com/copilot/concepts/agents/about-copilot-cli"><kbd>GitHub Copilot</kbd></a>
<a href="https://cursor.com/docs/cli/install"><kbd>Cursor</kbd></a>
<kbd>+ any custom command</kbd>
</p>
Plus **bring your own keys** and **local models** through Ollama, LM Studio or vLLM.
## What it is
Munder Difflin is a desktop app that wraps **real terminal-agent CLIs** as fully-capable agents,
wires them into a **hive mind**, and puts **your clone** in charge. Michael is the one agent *you*
talk to in order to get things done. Under the hood it runs the **fastest memory layer in the
world** so every agent remembers what it learns and recalls it instantly.
- **Every terminal is an agent.** Each `claude`, `agy`, `codex`, `grok`, `kimi`, `qwen`, `opencode`, `crush`, `pi`, `copilot`, or custom session runs as a real
process in a pseudo-terminal (`node-pty`), byte-for-byte authentic, rendered with xterm.js.
- **Every agent is an avatar.** Sessions appear as characters on a Pixi.js office floor. They walk
to stations as they work, and envelopes fly desk-to-desk when they message each other.
- **The hive coordinates them.** Agents read their memory and drain a mailbox; the router moves
messages between inboxes; the GOD agent adjudicates, assigns, and escalates only when it needs you.
- **Memory that's instant.** A markdown-first memory layer with a semantic recall index means agents
remember across sessions and recall in milliseconds.
## How it works
```
you โโ talk to โโโบ โโโโโโโโโโโโโโโ
โ GOD agent โ orchestrator / supervisor
โ (Michael's โ roster ยท routing ยท adjudication
โ office) โ blackboard ยท task ledger
โโโโโโโโฌโโโโโโโ
โ assigns ยท routes ยท escalates
โโโโโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโโโโ
โผ โผ โผ
โโโโโโโโโโโโโ โโโโโโโโโโโโโ โโโโโโโโโโโโโ
โ agent A โ message โ agent B โ message โ agent C โ
โ provider โ โโโโโโโโโโบ โ provider โ โโโโโโโโโโบ โ provider โ
โ + memory โ โ + memory โ โ + memory โ
โโโโโโโโโโโโโ โโโโโโโโโโโโโ โโโโโโโโโโโโโ
โโโโโโโโโ shared hive: memory ยท mailbox ยท blackboard ยท log โโโโโโโโ
```
1. **You spawn agents**: each is a normal terminal process (`claude`, `agy`, `codex`, or custom)
with its own working directory, identity, and provider-specific lifecycle.
2. **Agents collaborate through the hive**: a local git repo of plain files. They write to their own
`outbox/`; the harness's router delivers into recipients' `inbox/`. No agent ever touches git
(single-committer design avoids `index.lock` corruption).
3. **The GOD agent runs the floor**: it reads every request, resolves routine ones itself (keeping
the system fully autonomous), and only escalates *critical* items (spend, destructive ops, scope
changes) into an approvals queue you act on.
4. **Everything is visible**: you watch avatars move, envelopes fly, and the live terminal stream;
you can type back into any session, browse its files, and read its git history.
See [`HIVE.md`](./HIVE.md) for the full multi-agent design, [`SPEC.md`](./SPEC.md) for the
terminal/event plane, and [`DESIGN.md`](./DESIGN.md) for the visual system.
## Features
<table>
<tr>
<td width="50%" valign="middle">
### Cancel your Granola and Wispr Flow subscriptions
**Dictate into any app.** Hold Option on the Mac, or Control+Alt+Space on Windows and Linux (X11),
talk, and let go. The words land in whatever field is in front of you, and in every text box inside
Munder Difflin. The message box mic works in the free build too.
**Meetings hear both sides**, in Stapler, part of Pro. Your microphone is written as You and the
call's audio as Them, on Mac, Windows and Linux. Shift+Command+Space starts and stops a meeting on
the Mac, Control+Shift+Space on Windows and Linux. Correct the transcript, add a description, and
send it to any of your agents.
**Transcription on your machine.** A Whisper model ships inside the app and is the default engine.
A larger model is one download away, Apple's on device recogniser works on macOS 26, and Groq stays
off unless you add a key. 126 built in technical names plus your own words. English for now.
<img src="./docs/media/stapler-053.png" alt="Stapler, the yellow puck, with its ring open and Record meeting ready" width="360">
</td>
<td width="50%" valign="middle">
### One row per agent, and it tells you everything
Classic, the free skin, gets the new agent cards: status, engine, model, a context gauge, the
ticket it is on and the action it is taking right now, a crash strip instead of a silent
terminal, and a right click menu for the common jobs.
Pro gets the new sidebar: Tasks, Inbox, Automations, Memory, Capabilities and the Stapler at the
top, agents grouped under their projects, a live line per agent, **Asked you** on the row when an
agent has a question, notes you can search, and **Keep my agent order** to drag agents and projects
where you want them. Drag the sidebar's edge to make it wider, hover a ticket for its details, or
switch to agents and notes only.
</td>
</tr>
<tr>
<td width="50%" valign="middle">
### Talk to one agent, not twelve
Michael is your clone and the only agent you brief. He assigns the work, routes the traffic, and
escalates the few things that actually need you.
</td>
<td width="50%">
<a href="https://github.com/chaitanyagiri/munder-difflin/raw/main/docs/media/demo/orchestrator.mp4"><img src="./docs/media/demo/orchestrator-poster.jpg" alt="Briefing Michael, the orchestrator agent, from the Command Center" width="100%"></a>
</td>
</tr>
<tr>
<td width="50%" valign="middle">
### Hire an agent in a few clicks
Pick the CLI, the model and the autonomy, give it a desk, and it starts working. Import a
ready made role from the [Agent Gallery](https://munderdiffl.in/hires/) if you would rather not
start from scratch.
</td>
<td width="50%">
<img src="./docs/screenshots/add-agent.png" alt="The add agent dialog: choosing a provider, model and role" width="100%">
</td>
</tr>
<tr>
<td width="50%" valign="middle">
### Memory that survives the session
Every agent keeps markdown memory that is mined into a shared, searchable palace. Close the app,
come back tomorrow, and they still know what they learned.
</td>
<td width="50%">
<img src="./docs/screenshots/memory.png" alt="Searching the shared memory palace across every agent" width="100%">
</td>
</tr>
<tr>
<td width="50%" valign="middle">
### Autonomy with a leash
Set how far each agent may go on its own. Spend, scope and destructive operations come back to
you, and a circuit breaker steers, constrains, then stops anything that loops or runs away.
</td>
<td width="50%">
<img src="./docs/screenshots/autonomy.png" alt="Per agent autonomy and approval settings" width="100%">
</td>
</tr>
<tr>
<td width="50%" valign="middle">
### Watch the whole floor work
Agents walk to stations as they work and envelopes fly desk to desk when they message each other.
Click any desk to read that terminal live, and type straight back into it.
</td>
<td width="50%">
<a href="https://github.com/chaitanyagiri/munder-difflin/raw/main/docs/media/demo/agents.mp4"><img src="./docs/media/demo/agents-poster.jpg" alt="Agents working in parallel on the office floor" width="100%"></a>
</td>
</tr>
<tr>
<td width="50%" valign="middle">
### Set up once
The onboarding wizard checks what you already have, and offers to install what is missing rather
than sending you to a docs page.
</td>
<td width="50%">
<a href="https://github.com/chaitanyagiri/munder-difflin/raw/main/docs/media/demo/setup.mp4"><img src="./docs/media/demo/setup-poster.jpg" alt="The first run setup wizard" width="100%"></a>
</td>
</tr>
</table>
**The floor**
- **Every terminal is a real agent.** Claude Code, Antigravity (Gemini), OpenAI Codex, xAI Grok, Kimi Code, Gemini CLI, Qwen, OpenCode, Crush, pi.dev, GitHub Copilot CLI, Cursor, or a custom command, each in its own `node-pty` PTY, rendered with xterm.js.
- **Every agent is an avatar.** A Pixi.js office floor where agents walk to stations, envelopes fly desk to desk, and avatar state reflects real work.
- **A GOD orchestrator you talk to.** It routes tasks, adjudicates traffic, and escalates only what needs a human. Or press **Talk** and run the floor by voice.
- **Per-agent git worktrees.** Optional isolation so parallel agents never collide on branches.
- **More than one floor** (0.5.3). File, New Floor opens another office on its own folder, in its own window, with its own agents, board and memory. A folder only ever opens in one floor, and one licence covers them all.
**Memory & coordination**
- **The hive**: per-agent memory, atomic-file mailboxes, a shared blackboard, an append-only event log, single-committer git.
- **Semantic recall**: markdown memory mined into a shared palace, searchable from the UI, with condensation so it doesn't grow forever.
- **Enterprise Knowledge Graph**: your own documents and policies, queryable by any agent.
**Control & safety**
- **Human gates**: spend, scope, and destructive ops escalate to you. Steer mid-run or stop gracefully.
- **Circuit breaker**: a steer โ constrain โ stop ladder for agents that loop, storm errors, or blow their budget.
- **Budgets & telemetry**: per-agent token budgets, real cost from transcripts, a durable ledger, OTel spans, and a tool waterfall.
**Command Center**
- **Tickets with keys** (0.5.3): every card gets a key like V53-299, each agent has a Tasks tab with what it did and when, and the Tasks screen filters by date.
- Kanban tasks with dependencies, scheduled missions + heartbeat, live fleet monitoring, memory search, activity log, and a CI watcher.
- **Skills**: what every agent can already do across Claude Code, OpenCode and Codex, plus a browsable catalog of 227 more with search, filters, install and uninstall.
- **Built-in Monaco IDE**: file tree, editor tabs, save, plus CHANGES ยท HISTORY ยท COMPARE git rails with commit graph, diffs, branch compare, and guarded checkout. All fs/git access brokered through main.
**Getting work in and out**
- **Slack & webhooks**: message a channel or POST a webhook; Michael can spawn an ephemeral worker, reply in-thread, and tear it down.
- **Shareable hires + Agent Gallery**: import a role from a `munderdifflin://hire` link; import only pre-fills the form, a human still spawns it. Browse roles at the [Agent Gallery](https://munderdiffl.in/hires/).
- **Local transcription and dictation** (0.5.3): dictate into any app (Option on the Mac,
Control+Alt+Space on Windows and Linux X11), and Stapler in Pro transcribes meetings with You and
Them on Mac, Windows and Linux. A bundled Whisper model is the default engine; Apple's on device
recogniser on macOS 26 and Groq with your own key are options. A built in vocabulary of 126
technical names keeps Anthropic, Claude, Kubernetes and ARR spelled right, and you can add your own.
- **Tell an agent from the Stapler** (Pro): Record message, several screenshots per message, PDFs,
videos and folders, and a To menu that remembers who you picked.
- **BYOK keys + local LLMs**: per-provider keys in a write-only secret broker, plus Ollama / LM Studio / vLLM base URLs. Guides: [open models](https://munderdiffl.in/blog/run-munder-difflin-on-open-models/) ยท [Mac Mini](https://munderdiffl.in/blog/run-munder-difflin-on-a-mac-mini/).
- **Updates in one click**: the title-bar badge runs the real update. It downloads the build for your machine, then restarts and installs it, and it reads `latest` once a check confirms you are current. A manual download is the fallback for when the updater cannot fetch the build itself. The first run afterwards opens that release's notes as a designed page rather than a version number.
- **Your language**: English, Simplified Chinese and Arabic, with right to left layout for Arabic. English is the default and nothing changes until you pick another one in Settings. The app does not read your OS locale. All three app fonts ship inside the bundle, so nothing is fetched at boot.
- **Prerequisites**: one Settings page showing which supporting tools (uv, git, Node, MemPalace, each agent CLI) you have, what each is for, and a button that asks Michael to install what is missing.
> [!NOTE]
> **Status: v0.5.6. Capabilities, Integrations and Teams, and fewer tokens.**
> **Pro is free for everyone until Saturday 24 October 2026**, as part of the launch: download the app and sign in.
> These notes describe the 0.5.6 app on the [download page](https://harnessmd.com/download).
> **Capabilities (Pro)**: a marketplace of 2,347 MCP servers, skills, plugins and tools from the public list
> [HarnessMD/awesome-agent-capabilities](https://github.com/HarnessMD/awesome-agent-capabilities). We reviewed 622 of
> them; the rest read "Listed, not reviewed by us" and have no Install button. A merged change reaches the app with no
> new release, and the app uses the list only when it carries our signature.
> **Integrations**: one place for Slack, webhooks, the apps your agents use and your keys, each with a plain status and
> the last 50 things that happened. Nothing saves until you press Save.
> **Teams**: your office talks to your teammates' offices. One plain chat per teammate, you choose who answers each one,
> and files and folders go as a link with a password, for one download.
> **Fewer tokens by default**: Compact when context fills and Clear on a switch of work are on for every new install.
> The clear runs when an agent's work switches after a session of 60 minutes, and a `handoff.md` in the agent's folder
> carries the thread across. A new install has no hourly standup. In a replay of one office of 13 Claude agents over a
> week, with those two changes, token use fell about 37%. That is a replay, not a live measurement.
> **Agent files (Pro)**: export an agent as a file and choose what goes in; a key, a token or a secret's value never
> does. 36 templates replace role bundles.
> **Temps**: any lasting agent can start a temp, a short lived agent for one job, not only the orchestrator. Wherever you
> pick who answers (Slack, a teammate, a webhook, a schedule's Sends to, the Stapler's Send captures to), you can pick
> **A temp** or **A temp, clone of** one of your agents. **Temps per agent** (0 to 4) and **Max temps at once** sit on
> the orchestrator's **Budget & breaker** tab.
> **Slack**: one bot answers in **All channels** it is in by default, or only the channels you tick, and in direct
> messages; replies stay in the thread. Set the Slack app up from the manifest: press **Copy manifest** under
> **How to get these**. Slack comes back by itself after a failed start.
> **Token limits per period**: Every 5 hours, Daily, Weekly or Monthly, for the office and for each agent. They replace
> the old token caps.
> **Sign in and accounts in the app**: press **Open browser to sign in** and sign in there; the screen moves on by itself,
> or you paste the code into **Code from the browser**. **Sign out** and **Switch to Teams** sit in the profile menu.
> **Circuit breaker**: an agent that stopped as told is no longer constrained again, and the same warning is not sent twice
> inside ten minutes.
> **Fixes**: the window no longer hangs after hours, hooks work in Claude Code's auto mode, sign in works on a network with
> its own certificate, a message to Codex no longer waits for Enter, the Windows folder name field shows the name and not
> the whole path, the Dock click works the first time with the Stapler on, and Haiku 5.5 is in the model list.
> New to it? The [install guide](https://munderdiffl.in/blog/how-to-install-and-use-munder-difflin/) and [your first hour](https://munderdiffl.in/blog/your-first-hour-with-munder-difflin/) cover every step.
>
> **v0.5.3: Cancel your Granola and Wispr Flow subscriptions.**
> The Stapler does both, all running locally, and every agent gets easier to start, restart and steer.
> **Dictate into any app**: hold Option on the Mac (Microphone and Accessibility permissions), or
> Control+Alt+Space on Windows and Linux X11, talk, and let go. Wayland says why it cannot.
> **Meetings hear both sides** in Stapler, part of Pro: You and Them, on Mac, Windows and Linux,
> transcribed locally, then corrected, described and sent to any of your agents.
> **Transcription on your machine**: a bundled Whisper model by default, an optional 190 MB larger
> model, Apple's on device recogniser on macOS 26, and Groq only if you add a key.
> 0.5.3 transcribes English. The bundled model is English only; on macOS 26 dictation runs on Apple's engine, which follows the Mac's language and we have tested it in English. Other languages arrive as a model download in a later release.
> **A missing CLI is a card, not an error**: install and sign in from inside the app for every
> engine, with Set up manually when either fails. **Ask me** on every agent's Inbox, answered from
> one box over the composer. **More than one floor**: File, New Floor (Shift+Command+N, or Control+Shift+N) runs another
> office on its own folder, with its own agents, board and memory, and one licence covers every floor. **Send now** goes straight in, **Restart & Continue**
> keeps the conversation for every engine, and **Opus 5.5** is the default Claude model.
> **Settings, redesigned**: one Save for everything, inbound webhooks for GitHub, Linear, Telegram
> and your own, each with the agent that answers it, and custom secrets stored encrypted beside
> your provider keys. **Crashes keep your work**: a crashed agent keeps its uncommitted work. The IDE opens on Command+I with find and replace, the sidebar's reorder handle
> sits on the right in Arabic, and code in the IDE reads left to right in every language.
> Automatic compaction runs every 40 minutes at 30 percent of the context window, the same bar on
> every model size, where the previous default was every two hours at 60 percent.
> **Tasks you can follow**: every ticket gets a three letter key like V53-299, taken from the hive
> folder's name or set in Settings, Autonomy. Each agent has a **Tasks** tab beside Inbox and
> Terminal with what it did and when, the Tasks screen filters by Today, This week, This month or
> All time, and a card drops anywhere in a column. Hover a ticket in the sidebar for its details.
> **The Pro sidebar** is as wide as you drag it, and one setting shows only agents and notes. With
> more than one floor open, each window and Dock icon carries the office's number.
> **Stapler fixes**: the mic stops at the click, no words are lost at a pause, Record message never
> gets stuck, the drag follows your pointer, Reset puts it in the middle of the screen, and it never
> ends up off screen.
> Fixes: a restarted agent's terminal takes the mouse again, the hive repository no longer swallows
> agent git folders into its object database and the disk space comes back, and one hook event now
> renders one sidebar row with the task ledger read once.
> Not in this release: the Kimi scroll and queue bug, which we could not reproduce, and it is first
> on the 0.5.4 list.
> Before that, v0.4.6 brought a Simplified Chinese and Arabic interface with right to left support
> and self hosted fonts, the update badge that runs the real download and restart, and the security
> work on CLI name validation and analytics.
> **If you're on 0.3.8, update:** that build's usage-limit guard never released the agents it held,
> and it has been removed entirely.
> macOS (signed & notarized), Windows, and Linux builds are on the
> [download page](https://harnessmd.com/download). The open source build is on the
> [releases page](https://github.com/HarnessMD/munder-difflin/releases).
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## Getting started
### Download the app
**Most people want this one.** Munder Difflin is free and open source. Signed and notarized macOS
builds of 0.5.6, plus Windows and Linux, are on the [download page](https://harnessmd.com/download).
The open source build is on the [GitHub releases page](https://github.com/HarnessMD/munder-difflin/releases). Install it,
open it, and the wizard takes you the rest of the way. The [install guide](https://munderdiffl.in/blog/how-to-install-and-use-munder-difflin/) walks through
every step and every fix. You do not need Node, a toolchain, or this
repository.
You do still need at least one agent CLI on your machine. From 0.5.3 a missing CLI shows as a card
in the agent's terminal: Install runs the command, you sign in inside the app, and the agent starts.
**Settings โ Prerequisites** lists the rest.
**Pro** adds Capabilities, agent files, Stapler and the new sidebar. As part of the launch it is free for everyone
until Saturday 24 October 2026. After that the annual plan is $150 USD, adjusted for purchasing power, as low as
$100 a year.
[Get Pro](https://app.harnessmd.com/console/license)
### Build from source
Everything below is for contributors and for people who want to run an unreleased build.
### Prerequisites
- **macOS, Windows, or Linux**.
- **Node.js 18+** and npm.
- A **C/C++ toolchain** for `node-pty`'s native addon. On macOS, install Xcode Command Line Tools:
```bash
xcode-select --install
```
- At least one supported agent CLI on your `PATH`, one of **[Claude Code](https://claude.com/claude-code)**
(`claude`, the default), **Antigravity** (`agy`), **OpenAI Codex** (`codex`), **xAI Grok** (`grok`),
**Kimi Code** (`kimi`), **Gemini CLI** (`gemini`), **Qwen** (`qwen`), **OpenCode** (`opencode`),
**Crush** (`crush`), **pi.dev** (`pi`), **GitHub Copilot** (`copilot`), or **Cursor** (`cursor-agent`).
Most missing CLIs self-heal: the harness runs the installer in the
terminal and continues into the new binary.
- *Optional:* **your own API keys and local LLMs** in **Settings โ AI Engines** (Ollama / LM Studio / vLLM).
- *Optional:* the semantic memory index for instant cross-session recall. Markdown memory works without it.
### Install & run
```bash
git clone https://github.com/chaitanyagiri/munder-difflin.git
cd munder-difflin
npm install # postinstall rebuilds node-pty against Electron's ABI
npm run dev # launches the Electron app with hot reload
```
On first launch you'll go through the onboarding wizard, then land on the floor. Use **Add agent** to
spawn your first session. The GOD agent seats itself in Michael's office automatically.
### Other scripts
```bash
npm run build # production build via electron-vite
npm run preview # preview the production build
npm run typecheck # type-check the node (main/preload) and web (renderer) projects
```
> If `node-pty` fails to load after an Electron upgrade, re-run `npm install` (the `postinstall` hook
> runs `electron-rebuild` against the current Electron ABI).
## Architecture
Two data planes feed one renderer: a **terminal plane** that owns the PTYs, the filesystem and git,
and an **event plane** that runs the hive, the hook server and the router. The renderer talks to
both only through a typed bridge.
**The full diagrams, the module by module project structure, and the design system live in
[`docs/ARCHITECTURE.md`](./docs/ARCHITECTURE.md).** They moved out of this file so it can explain
the product rather than the codebase. Also see [`HIVE.md`](./HIVE.md) for the multi-agent design,
[`SPEC.md`](./SPEC.md) for the terminal and event plane, and [`DESIGN.md`](./DESIGN.md) for the
visual system.
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## Roadmap
Shipped through **v0.5.6**: Capabilities, Integrations and Teams, agent files with 36 templates, token limits per
period, fewer tokens by default with a handoff file across a cleared session, temps that any
agent can start and that can answer inbound messages, one Slack bot for every channel it is in, sign in and accounts
inside the app, a quieter circuit breaker, local dictation into any app and meetings with both sides of the call,
with the model in the installer, the new agent cards in the free build and a new Pro sidebar, a
missing CLI you install and sign in to from inside the app, Ask me on every Inbox, more than one
floor on one machine, ticket keys and a Tasks tab on every agent, redesigned Settings with inbound webhooks and custom secrets, Opus 5.5 as the default Claude
model, one compaction bar for every model size, a Simplified Chinese and Arabic interface with right to left
support
and self-hosted fonts, twelve agent engines with BYOK keys and local LLMs, voice orchestration,
the hive (memory ยท mailboxes ยท blackboard ยท event log), Command Center with kanban and weekday
schedules, a built-in Monaco IDE with git rails, integrations registry + secret broker,
Slack-spawned workers, shareable hires and the Agent Gallery, observability and the circuit
breaker, durable persistence, session resume, multi-window floors, one click updates, a Skills
browser, a live Prerequisites check, cost reporting folded from the ledger, semantic memory
that works on Apple Silicon, and an updater that installs the build instead of pointing at it.
Full history in [`CHANGELOG.md`](./CHANGELOG.md).
Next up:
- [ ] **More chat integrations**: Telegram and richer chat bridges that pipe a channel into Michael's queue and route replies back out.
- [ ] **More engines & integration templates**: keep growing the engine roster and the integrations registry.
- [ ] **Fuller avatar coverage**: drive the remaining station visits and tool-bubbles entirely from real hook events.
- [ ] **Durable layout & command history**: extend persistence to agent layout and per-session history.
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## Contributing
Contributions are welcome. This is pre-release software with a lot of surface area. Start with
[`CONTRIBUTING.md`](./CONTRIBUTING.md). The short version: fork, `npm install && npm run dev`, keep
`npm run typecheck` green, and **derive any new UI from [`DESIGN.md`](./DESIGN.md) tokens**. Good
first areas: wiring real hook events, the add-agent flow, the config drawer, and cross-platform work.
> [!IMPORTANT]
> **Every pull request must show a before and an after**: screenshots, or a recording when the
> thing moves, under the `### Before` and `### After` headings in the PR template. This is checked
> automatically and a PR without it does not merge. "My change has no UI" is not an exemption; it
> just changes what the evidence looks like. See
> [Evidence is mandatory](./CONTRIBUTING.md#evidence-is-mandatory).
Questions, bugs, or want to show off your office? Join the Discord: **<https://discord.gg/SEDzP5ZPk5>**. Add your Discord handle to a PR and you'll get the `employee of the month` role when it merges.
**Looking for somewhere to start?** The
[`good first issue`](https://github.com/chaitanyagiri/munder-difflin/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22)
list is kept stocked with small, self contained work that has a clear finish line.
**Everyone whose code is in Munder Difflin is listed in [`CONTRIBUTORS.md`](./CONTRIBUTORS.md).**
If that is you, it is yours to point at. The list is generated from the pull requests themselves and
updates on its own, so you appear without having to ask. It also names the contributions that are in
`main` but that GitHub shows as closed rather than merged, because that was our mistake to record
and not theirs to explain.
<a href="./CONTRIBUTORS.md">
<img src="https://contrib.rocks/image?repo=chaitanyagiri/munder-difflin" alt="Munder Difflin contributors">
</a>
## Telemetry
Official builds send a **small set of anonymous usage events** (app opened, agent spawned, feature
used), never prompts, code, file paths, or agent output. The complete event list, the anonymity
guarantees, and the three ways to opt out (Settings toggle, `DO_NOT_TRACK`, or building from
source, forks compile with no key and send nothing) are documented in
[`TELEMETRY.md`](./TELEMETRY.md).
## License
> [!IMPORTANT]
> **Asset licensing.** The bundled pixel art (tilesets and maps) is **Modern Interiors - RPG Tileset
> [16X16]** by [LimeZu](https://limezu.itch.io/moderninteriors), used under the **Complete Version
> licence**, which permits editing and use in commercial and non-commercial projects. **Credit to
> LimeZu is required by that licence** and must stay in place. The Office cast is not LimeZu art. It
> is drawn procedurally in `portraitArt.ts`. See
> [`src/renderer/src/assets/ATTRIBUTION.md`](./src/renderer/src/assets/ATTRIBUTION.md).
The **source code** is licensed under the **MIT License**. See [`LICENSE`](./LICENSE). The MIT grant
covers the code only; the bundled pixel art is licensed separately from LimeZu and is carved out in
[`LICENSE-ASSETS`](./LICENSE-ASSETS). *Munder Difflin* is an affectionate parody and is not affiliated with NBC's *The Office* or
Dunder Mifflin.
## Acknowledgements
- [LimeZu](https://limezu.itch.io/) for the *Modern Interiors* pixel-art tilesets (Complete Version licence).
- [`shahar061/the-office`](https://github.com/shahar061/the-office) for the office tileset/map vendoring.
- [Pixi.js](https://pixijs.com/) ยท [xterm.js](https://xtermjs.org/) ยท [node-pty](https://github.com/microsoft/node-pty) ยท [electron-vite](https://electron-vite.org/) ยท [CodeMirror](https://codemirror.net/) for the libraries this is built on.
- [Remotion](https://www.remotion.dev/) for the landing page's animated "how it works" clips (`landing-remotion/`).
- *The Office* (US) for Munder Difflin, Inc.