Crook for Herdr
AI coding agents on the go
Free · Designed for iPad. Not verified for macOS.
New: notifications even when Crook is in the background — no Apple key on your Mac needed. No account; Crook connects only to your own Mac.
Your agent is waiting for an answer, and you're not at your desk. Crook lets you watch and steer the agents running in Herdr on your Mac, from your iPhone or iPad.
Agents waiting for you come first, and you answer their prompts with one tap. Open the real terminal when you need it.
No account and no SSH setup. Crook connects only to your own Mac.
EVERY AGENT AT A GLANCE
Agents that need you come first: waiting for input, done, working, idle. The same marks as Herdr and the same tab names (1:claude).
THE REAL TERMINAL
Open any pane to see the live, colored terminal. A row of extra keys gives you esc, tab, arrows, ctrl and ^C.
ANSWER PROMPTS
When an agent asks for permission, tap the choice it offers — Yes, Allow once, and so on — right from the list.
SEND INSTRUCTIONS
Type or dictate (speech is turned into text on the device), attach photos, pick files with @ and run / commands. Start a new workspace with Claude Code or Codex.
NOTIFICATIONS
Get notified when an agent is waiting for you or has finished, even when Crook is in the background. By default, notifications arrive when you're away from your Mac; you can change this in Settings. Quiet hours and per-workspace mute.
USAGE AND MODELS
See context, tokens, 5-hour and weekly limits and cost, and switch models and effort for Claude Code, Codex and OpenCode.
IPAD
Spaces and agents on the left, the session on the right — like Herdr on the Mac. Keyboard and Stage Manager friendly.
CONNECTS ONLY TO YOUR MAC
Crook tries Tailscale, then the same Wi‑Fi, then an encrypted relay. On Wi‑Fi and the relay, everything is end‑to‑end encrypted with your Mac's key. No account, no analytics, no ads.
Recommended: Tailscale on your Mac and iPhone — Crook then connects directly from anywhere, with no time or data limit. Without it, the relay works for up to 120 minutes and 200 MB per Mac per day.
WHAT YOU NEED
• A Mac running Herdr 0.9 or later and Node.js 23.6 or later
• The Crook plugin on the Mac: herdr plugin install algorist-dev/herdr-crook (github.com/algorist-dev/herdr-crook)
Then press prefix+m in Herdr and scan the QR code.
Supported agents: Claude Code, Codex, OpenCode, GitHub Copilot CLI, Gemini CLI (with an API key), Pi and Hermes, plus any terminal pane. Hermes notifies you only when it's waiting for approval; working and done aren't shown.
Crook is made by Algorist and is not affiliated with the Herdr project.
Questions: support@algorist.jp
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
You can now switch Hermes models from your iPhone.
When the plugin on your Mac is out of date, tap "Update on Mac" on the Mac screen to update it from your iPhone.
Crook now notices a dropped connection sooner and reconnects.
These need plugin 1.2.0 on your Mac. Tap "Update on Mac", or run herdr plugin update on your Mac and restart Herdr.
The developer, Yuki Imai, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yuki Imai
- Size
- 5.5 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 10 more
- English, French, German, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Turkish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Algorist