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How to walk someone through an app one control at a time with Big Arrow on the Screen

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

Authorization notice. Big Arrow on the Screen is dual-use. Only use it on software, sites and systems you own or have explicit permission to test.

Who it is forA presenter or teacher preparing a Keynote how-to, or a helper showing someone the next control to press.

The problemWritten instructions are hard to follow on screen, and describing a control in words is slow when the person is not familiar with the app.

The outcomeEach control gets its own numbered arrow and sign in order, and each arrow removes itself after its time limit.

What you need first

  • 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

Steps

  1. Install the tool with brew install franzenzenhofer/tap/bigarrow.
  2. Point at the first control with bigarrow start --element Animate --app Keynote --role radiobutton --text "1. Click Animate" --from right --style ring --color purple. (inferred, check the README)
  3. Point at the second control with bigarrow start --element "Add an Effect" --app Keynote --text "2. Add an Effect" --from right --style box --corners sharp --color "#FF9F0A" --shape straight. (inferred, check the README)
  4. Point at the third control with bigarrow start --element Play --app Keynote --role button --text "3. Press play. Bask in the applause." --from top --color teal --shape zigzag --size S. (inferred, check the README)
  5. Clear any arrows still showing with bigarrow stop --all. (inferred, check the README)

Prompt for your agent

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.

Caveat. The --element matching depends on the labels the app exposes, so run `bigarrow elements --app <app name>` first to confirm the labels.

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