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# Munder Difflin ### Agent harness to run an office of your clones **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**, **Qwen**, **OpenCode**, **Crush**, **pi.dev**, and **GitHub Copilot CLI** — 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.

Electron · React · TypeScript · Pixi.js · xterm.js · node-pty

[!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

• What it is
• How it works
• Features
• Getting started
• Architecture
• Project structure
• Design system
• Roadmap
• Contributing
• Telemetry
• License
• Acknowledgements

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, 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 ── talk to ──► ┌─────────────┐ │ GOD agent │ orchestrator / supervisor │ (Michael's │ roster · routing · adjudication │ office) │ blackboard · task ledger └──────┬──────┘ │ assigns · routes · escalates ┌────────────────────────┼────────────────────────┐ ▼ ▼ ▼ ┌───────────┐ ┌───────────┐ ┌───────────┐ │ agent A │ message │ agent B │ message │ agent C │ │ provider │ ─────────► │ provider │ ─────────► │ provider │ │ + memory │ │ + memory │ │ + memory │ └───────────┘ └───────────┘ └───────────┘ └──────── shared hive: memory · mailbox · blackboard · log ───────┘

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 for the full multi-agent design, SPEC.md for the terminal/event plane, and DESIGN.md for the visual system.

Features

The floor - Every terminal is a real agent. Claude Code, Antigravity (Gemini), OpenAI Codex, xAI Grok, Kimi Code, Qwen, OpenCode, Crush, pi.dev, GitHub Copilot CLI, 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.

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 → constrain → 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 - 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 · HISTORY · 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. - BYOK keys + local LLMs — per-provider keys in a write-only secret broker, plus Ollama / LM Studio / vLLM base URLs. Guides: open models · Mac Mini. - Auto-update — new releases download in the background; you click restart, and the notes arrive as a designed page rather than a version number. - 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: v0.4.4 — Windows agents can finally talk to each other. On Windows, agents were never told they could message one another: the protocol reaches them as a multi-line command line, and cmd.exe cut it at the first newline. They started, looked healthy, and ignored each other forever. If you tried Munder Difflin on Windows and your team just sat there, that was this bug. Also fixed: a fresh install now starts its own message router instead of waiting for a restart, the setup wizard can be finished, and dark mode is rebuilt for readability. New in this release: Skills, Prerequisites, and release notes that carry their own page. 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 releases page.

Getting started

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 — Claude Code (claude, the default), Antigravity (agy), OpenAI Codex (codex), xAI Grok (grok), Kimi Code (kimi), Qwen (qwen), OpenCode (opencode), Crush (crush), pi.dev (pi), or GitHub Copilot (copilot). 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 → 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:

┌───────────────────────────────────────────────────────────────┐ │ Electron Renderer (React) │ │ ┌──────────────────┐ ┌──────────────────────────────┐ │ │ │ Office Floor │ │ Terminal + Command Bar │ │ │ │ (Pixi.js) │ │ Files + Git tabs (xterm.js) │ │ │ └─────────▲────────┘ └────────────▲─────────────────┘ │ │ │ avatar state │ pty bytes / fs / git │ └─────────────┼──────────────────────────┼───────────────────────┘ │ IPC (contextBridge: window.cth) ┌──────┴──────────┐ ┌──────┴─────────────┐ │ Event Plane │ │ Terminal Plane │ │ hooks / hive │ │ node-pty PTYs │ │ router + GOD │ │ + fs + git │ └────────▲────────┘ └──────▲─────────────┘ │ hook payloads │ stdin / stdout └─────────┬──────────────┘ ┌──────┴──────────────┐ │ claude / agy / codex│ └─────────────────────┘

• Terminal plane. The main process owns a PtyManager that spawns each agent as a node-pty process and streams output over per-id IPC (pty:data:<id>). The renderer talks only through a typed window.cth bridge (src/preload/index.ts), which also exposes sandboxed filesystem and git helpers.
• Hive / event plane. hive.ts is the on-disk multi-agent layer; hooks.ts runs the hook server that provider bridges POST lifecycle payloads to (cth-hook for Claude Code, agy-hook for Antigravity). memory.ts wraps the semantic memory CLI. The router delivers messages, drains provider outboxes, the GOD agent adjudicates, and idle/inbox wakeups keep workers draining mail.

Project structure

src/ main/ Electron main process (Node) index.ts window, IPC handlers, quit guard pty.ts node-pty manager (spawn/write/resize/kill/stream) hive.ts on-disk multi-agent layer (memory, mailboxes, router) hooks.ts hook server + provider hook shims (`cth-hook`, `agy-hook`) memory.ts semantic memory layer (CLI wrapper, degrade-to-noop) config.ts harness config persistence + home setup transcript.ts reads ~/.claude/projects/ JSONL transcripts for real token/cost telemetry telemetry.ts live OTel collector + usage/cost feed for observability usage.ts / pricing.ts UsageProvider seam + per-model cost attribution breaker.ts / control.ts cost/runaway circuit breaker (steer/constrain/stop) + HITL gate / steer / stop reflect.ts MemoryReflector — memory condensation db.ts SQLite durable store (window bounds + history) + durable cost ledger github.ts GitHub issue + CI run ingestion via the gh CLI shellEnv.ts resolve PATH and shell env for child processes fs.ts / git.ts sandboxed filesystem + git bridges preload/ contextBridge → typed window.cth API renderer/src/ App.tsx top-level layout + wiring design/ tokens.css / tokens.ts / global.css (design source of truth) components/ PixelPanel, AgentDetailPanel, CommandBar, ApprovalsPanel, MemoryPanel, … CommandCenterPanel, Michael's control surface (Terminal/Floor/Memory/Activity/Tasks/Triggers/Handbook tabs) ToolWaterfall, per-agent tool-span waterfall for the observability view TasksKanban, dependency-aware kanban board (Tasks tab) ThreadsPanel, hive message conversation viewer (Messages tab) MessageQueueComposer, park messages for a busy agent scene/office/ Pixi office floor: OfficeFloor, Character, Camera, cast, pathfinding, … store/ · hooks/ zustand store, event loop, PTY parser, typewriter assets/ tilesets, maps, character sheets (see ATTRIBUTION.md) docs/ `logo.png`, `banner.png`, landing page (GitHub Pages → munderdiffl.in) docs/media/ `og.png` (social previews) + rendered Remotion clips landing-remotion/ Remotion project that renders the landing page's "how it works" clips HIVE.md · SPEC.md · DESIGN.md multi-agent · terminal/event · visual design docs/message-queue.md who may type into an agent's terminal, and when

Design system

The aesthetic is Animal Crossing × Earthbound × SNES menu UI — pixel-snapped, chunky, friendly. DESIGN.md is canonical; every component derives from its tokens. The Munder Difflin brand layers a Dunder-Mifflin maroon (#6E1423) and gold (#F4D35E) on top for logo and chrome. The 15 avatars are the cast of The Office, differentiated by hair/skin/shirt recipes.

Roadmap

Shipped through v0.4.3 — ten agent engines with BYOK keys and local LLMs, voice orchestration, the hive (memory · mailboxes · blackboard · event log), Command Center with kanban and 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, and working auto-update. Full history in 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.

Contributing

Contributions are welcome — this is an early prototype with a lot of surface area. Start with CONTRIBUTING.md. The short version: fork, npm install && npm run dev, keep npm run typecheck green, and derive any new UI from DESIGN.md tokens. Good first areas: wiring real hook events, the add-agent flow, the config drawer, and cross-platform work.

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.

License

[!IMPORTANT] Asset licensing. The bundled pixel art (tilesets, maps, and the base character sheets the Office cast is recolored from) comes from LimeZu via shahar061/the-office under the LimeZu FREE VERSION license — non-commercial use only. The recolored sprites inherit that restriction. See src/renderer/src/assets/ATTRIBUTION.md. To commercialize, replace these assets or obtain a paid LimeZu license.

The source code is licensed under the MIT License — see LICENSE. The MIT grant covers the code only; the non-commercial asset restriction above is carved out in the LICENSE scope note. Munder Difflin is an affectionate parody and is not affiliated with NBC's The Office or Dunder Mifflin.

Acknowledgements

• LimeZu — pixel-art tilesets and character base sheets.
• shahar061/the-office — office tileset/map vendoring.
• Pixi.js · xterm.js · node-pty · electron-vite · CodeMirror — the libraries this is built on.
• Remotion — the landing page's animated "how it works" clips (landing-remotion/).
• The Office (US) — for Munder Difflin, Inc.