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What you can do with Big Arrow on the Screen

big-arrow-on-the-screen (bigarrow) is a macOS command-line tool and skill for Claude Code and Codex that draws arrows, boxes and text signs over any window without taking focus or capturing the screen.

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Authorization notice. This tool is dual-use. Only use it on software, sites and systems you own or have explicit permission to test, and follow the relevant licenses and terms of service.

What do you want to do?

4 use cases

  • Point a human at the Allow button an agent cannot press

    An agent draws an arrow and sign at the permission button so the human clicks it.

    View prompt
    Use the bigarrow CLI from the repo franzenzenhofer/big-arrow-on-the-screen to point at the button labelled <button label> in the app <app name> with the sign text "<sign text>". Expected output: a JSON result from `bigarrow point ... --json` with an exit code of 0. Verify the exit code is 0, and if it is 4 run `bigarrow doctor` and report which app needs Accessibility.

  • Walk someone through an app one control at a time

    Chain several arrows so a person learns each step of an app's interface.

    View prompt
    Use the bigarrow CLI from franzenzenhofer/big-arrow-on-the-screen to show three steps in <app name>, using the element labels <label 1>, <label 2> and <label 3> with the sign texts "1. <text 1>", "2. <text 2>" and "3. <text 3>". Expected output: three `bigarrow start` runs that each return at once. Verify each run exits with code 0 and that `bigarrow stop --all` clears the arrows afterwards.

  • Point at the right browser tab out of many

    Raise a Chrome window and point at one tab by its title.

    View prompt
    Use the bigarrow CLI from franzenzenhofer/big-arrow-on-the-screen to raise the Google Chrome tab titled "<tab title>" and point at it with the sign "<sign text>". Expected output: the tab is selected and the command exits with code 0. Verify the exit code and report the tab title that was selected.

  • Show a code on a sign that the person can copy and paste

    Put a PIN or code on a sign with a copy button and point at the field to paste it into.

    View prompt
    Use the bigarrow CLI from franzenzenhofer/big-arrow-on-the-screen to point at the text field <field label> in <app name>:<window title> and show the sign "<sign text with {{<code>}}>". Expected output: a sign with a copy button and an exit code of 0. Verify the exit code and do not repeat the code in any other output.

How to use Big Arrow on the Screen

  1. Check you have what it needs: A Mac running macOS 14 or later; Homebrew to run `brew install franzenzenhofer/tap/bigarrow`; Claude Code or Codex if you want the agent skill.
  2. Open franzenzenhofer/big-arrow-on-the-screen on GitHub and read the README and license.
  3. Install the tool with brew install franzenzenhofer/tap/bigarrow.
  4. Teach your agents the skill with bigarrow install-skill.
  5. Point at the button with bigarrow point --element "Allow" --app "System Settings" --text "Franz, click Allow".
  6. If the command exits with code 4, run bigarrow doctor and grant Accessibility to the app that started bigarrow (for example Terminal or Claude).

These steps come from our top use case, Point a human at the Allow button an agent cannot press, which also has a copy-paste agent prompt.

Big Arrow on the Screen alternatives · Best AI repos for Work and operations

About this repo

Requirements

  • A Mac running macOS 14 or later
  • Homebrew to run `brew install franzenzenhofer/tap/bigarrow`
  • Claude Code or Codex if you want the agent skill
  • Accessibility permission for the app that starts bigarrow, only for --element and --app App:title targets
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Questions about Big Arrow on the Screen

What is Big Arrow on the Screen?

big-arrow-on-the-screen (bigarrow) is a macOS command-line tool and skill for Claude Code and Codex that draws arrows, boxes and text signs over any window without taking focus or capturing the screen. It is an open-source project on GitHub: https://github.com/franzenzenhofer/big-arrow-on-the-screen.

Who is Big Arrow on the Screen for?

Mac users and developers who run AI agents on their Mac and need to point a human at the one button, tab or field the agent cannot press or should not press.

What can I do with Big Arrow on the Screen?

4 use cases so far, for example: Point a human at the Allow button an agent cannot press; Walk someone through an app one control at a time; Point at the right browser tab out of many. Each has steps and a copy-paste agent prompt.

What do I need to run Big Arrow on the Screen?

A Mac running macOS 14 or later; Homebrew to run `brew install franzenzenhofer/tap/bigarrow`; Claude Code or Codex if you want the agent skill; Accessibility permission for the app that starts bigarrow, only for --element and --app App:title targets.

What are alternatives to Big Arrow on the Screen?

Other hot AI repos in Work and operations: AI Job Search, Solidcraft, Fastbrowse, Awesome AI Agent Platforms, Nautilo.

Is Big Arrow on the Screen safe to run?

Deduped does not own, audit or vouch for it. Read the README and license, run it on your own systems first and review every command before you run it.