Before GhostMark, I kept writing things like move the button near the top-right below the banner and hoping the agent understood the same element I meant.
For a one-arrow change, text feels like the wrong interface. It gets worse when the feedback is really a user flow rather than a single location.
Paste a screenshot in Claude Code, draw the arrows, circles, or user flow you mean, then press Enter. GhostMark sends the marked image back to the prompt. Free, local, open-source, and Apple-notarized for macOS.
