mark

macOS 14+

Point at anything.
Your agent sees it.

Press ⌃⌥M, click anything on your screen, type a note. Your agent gets the element, the window, the text, and a screenshot — tied to one short code: ⟦mark:45T993⟧

Download Source on GitHub
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Demo

Demo video — coming soon
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How it works

1

⌃⌥M

A highlight follows your mouse, in any app.

2

Click

Anything — a button, a bug, a design.

3

Type a note

Say what you want, in your own words.

4

⌃⌥S send

Your agent gets all of it, one code per note.

Works with Pi, Claude Desktop, Cursor — and any tool that speaks MCP.
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Download

mark.dmg

Signed & notarized. macOS 14+. Drag to /Applications.

Download mark.dmg

Build from source

Free and open source.

git clone https://github.com/butttons/mark-cli
cd mark-cli && swift build
.build/debug/markd &    # that's it
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Remote agents

Agent on another machine? Pair once — your sends land on a relay, and you paste the code into the remote chat. It resolves the note and screenshots there. Uploads expire after 24 hours. 

mark hub https://hub.getmark.dev   # public, for trying it out
# or deploy your own (keeps annotations private): see README
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Permissions

  • AccessibilityRequired — so mark can see what you click.
  • Screen RecordingFor the close-up screenshots. Skipped, never black, without it.