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What Is Orca? The ADE for Running AI Agents in Parallel

Published on:

Reading time: 7 min

Topic: Technology

Author: Leandro Valencia

#orca ai#agent orchestrator#ade#claude code#git worktrees#ai harness

What Orca is: the agent development environment that runs several AI agents in isolated worktrees. Decision gates, mobile app, and how it differs from an IDE.

Table of Contents

Shifting the center: from the file to the fleet

A traditional IDE organizes everything around the file you have open. An agentic IDE — Cursor, Antigravity, Zed — keeps that center and puts an agent beside it. That works fine while there is one agent.

The model breaks when you launch five. Where does each one edit? What happens when two touch the same file? How do you know which finished and which is waiting for you to approve something irreversible?

Orca answers by moving the center: the unit of work is not the file, it is the task assigned to an agent. And each task lives in its own isolated git worktree, which solves by construction the problem of two agents overwriting the same files.

The pieces of Orca

Parallel worktrees per task

Each task gets its own git worktree. This is the most important design decision: isolation does not depend on you remembering to split branches, it is automatic. The app also ships a GPU-rendered terminal with splits, so you can watch several agents working at once without the interface crawling.

Its own orchestration layer

This is the heart of the product, and it is worth learning the vocabulary because it is not an IDE's:

  • A Run acts as a namespace, with a coordinator inbox.
  • Tasks are handed out as dispatches.
  • Workers report back when they finish.
  • Decision gates block a task until a human — or the coordinator — resolves a question.

That last concept delivers the most value in practice: without decision gates, an agent that needs a decision hangs silently and you find out half an hour later. With them, the block is explicit and shows up in the inbox.

Embedded Chromium browser

It ships an embedded Chromium with a design mode for inspecting the UI the agents themselves generate. It is a direct answer to a real workflow: the agent changes a component, and you want to see the result without jumping to another window or starting a server by hand.

Native integrations

GitHub and Linear, to manage PRs and issues without leaving the app. That is the difference between "the agent made the change" and "the change is already in review with its issue closed".

Multi-agent compatibility

It is not tied to one assistant: Claude Code, Codex, Gemini, Cursor and other third-party agents. This matters more than it looks: if your fleet mixes providers — a cheap one to execute, an expensive one to design — an orchestrator locked to a single provider forces you to choose.

Mobile app (beta)

A companion app for iOS and Android, in beta, that works as a remote control for the desktop: check the state of each worktree, answer pending prompts, make commits, and get push notifications when an agent finishes or gets blocked.

Two important caveats: it requires pairing your phone with an active Orca desktop (over local network, Tailscale or their relay), and it does not replace the full editor. It is a remote control, not a mobile version of the ADE.

Price and license

Orca is free and open source under the MIT license. It does not charge for model usage: you connect your own subscriptions or API keys for each agent, and Orca only orchestrates.

Worth stressing the implication: the tool is free, the work is not. If you run five agents in parallel, you burn five times the tokens. Orca saves your time, not your AI bill.

Operating systems

Platform Status
macOS Available
Windows Available
Linux Available
iOS / Android Companion app in beta

Being cross-platform is one of its most concrete competitive advantages: several orchestrators in the same niche run on macOS only.

Orca vs agentic IDEs (Cursor, Antigravity, Zed)

This is the comparison most people search for, and the short answer is that they do not compete for the same thing.

An agentic IDE optimizes the loop "I write code with help from an agent". Orca optimizes the loop "several agents write code and I supervise". If your day is mostly the first, an ADE is infrastructure you will not use. If it is mostly the second, an agentic IDE leaves you without answers when the third agent gets blocked.

If you are choosing between whole categories, we break that down in the best AI IDEs and coding agents of 2026.

When Orca is the right call

  • You need to see the state of your agents without sitting at the computer.
  • You work on Windows or Linux and macOS-only orchestrators are useless to you.
  • You want one app that also handles the browser, version control and issue tracking.
  • Your fleet mixes several agent providers, not just one.
  • You are building an agent-fleet workflow from scratch and you value remote supervision.

The case that justifies it on its own: an agent sits waiting for a decision while you are on the subway. The push notification and being able to answer from your phone pay for the install.

When it is not the right call

  • You work with one agent at a time. The cost of learning worktrees, Runs, dispatches and decision gates never pays off.
  • Your workflow is 100% terminal and 100% Claude Code on macOS. There, Agent Herder weighs far less.
  • You want an editor. Orca replaces the IDE as your primary layer if you adopt its model, but it is not where you will type by hand.

What to verify before adopting it

The tool moves fast, so confirm the current state before building a workflow on top of it:

  • The mobile app is in beta; treat it as a remote control, not a desktop replacement.
  • It does not charge on its own, but it assumes you already pay for the subscriptions or API keys of the agents it orchestrates.
  • Phone-to-desktop pairing needs local network, Tailscale or their relay: if your desktop is off, the app has nothing to control.

Conclusion

Orca is the bet for anyone who wants a complete, cross-platform multi-agent environment they can supervise from a phone. Its value is not writing code faster — it is being able to have five agents working and know at any moment which advanced, which finished, and which is waiting on you.

The deciding question is not whether Orca is a good tool, but how far you plan to take your harness. If your workflow already revolves around several agents and several providers, Orca fits. If it is still one agent and one editor, it is premature infrastructure.

Keep reading

Step-by-step guide

  1. Install Orca on your desktop

    Download it from onorca.dev. There are builds for macOS, Windows and Linux, so there is no OS restriction.

  2. Connect your agents

    Orca does not sell tokens: add your own subscriptions or API keys for Claude Code, Codex, Gemini or Cursor.

  3. Open a Run

    A Run is the working namespace with its coordinator inbox. It is where tasks get handed out.

  4. Hand out tasks as dispatches

    Each dispatch runs in its own isolated git worktree, so two agents never edit the same files.

  5. Pair your phone (optional)

    The iOS/Android beta app acts as a remote control over local network, Tailscale or their relay, and alerts you when an agent gets blocked.

Frequently asked questions

What is Orca?

Orca describes itself as an ADE (agent development environment): an alternative to the traditional IDE, built from scratch to run several coding agents in parallel, each in its own isolated git worktree so two agents never touch the same files.

Is Orca free?

Yes. It is free and open source under the MIT license, and it does not charge for model usage. You connect your own subscriptions or API keys for each agent, and Orca only orchestrates.

Which operating systems does Orca support?

macOS, Windows and Linux on desktop, which makes it OS-agnostic. The companion mobile app is available for iOS and Android in beta.

Which AI agents does Orca support?

It is not tied to a single assistant: it supports Claude Code, Codex, Gemini, Cursor and other third-party agents. That multi-agent compatibility is one of its main differences from single-provider orchestrators.

Does the Orca mobile app replace the desktop?

No. It works as a remote control for the desktop: check the state of each worktree, answer pending prompts, make commits and receive push notifications. It requires pairing with an active Orca desktop and does not replace the full editor.

Is Orca the same as an agentic IDE like Cursor or Antigravity?

No. An agentic IDE starts from the editor and adds an agent. Orca starts from the agent fleet and builds the environment around it: parallel worktrees, a coordinator with dispatches and decision gates. The editor stops being the center.

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