Why Claude Code Needs Visual Context (and How to Give It)

I spent an hour yesterday describing a button. "It's the blue one. No, the one next to the form. The one with the rounded corners." My AI assistant, bless its digital heart, kept generating code for the wrong element. It wasn't seeing what I was seeing. This isn't a unique problem. It's the fundamental bottleneck when trying to fix or build UI elements with AI assistants. We’re still talking to machines like they’re blindfolded.

The AI's Blind Spot: Guessing UI from Text

AI assistants are smart. They can parse complex code. They can generate novel logic. But they're operating in a void when it comes to UI. You tell Claude Code, "The login button isn't working." Which login button? The one in the header? The one on the dedicated login page? The one that appears in a modal? The AI has no visual reference. It can't see the screen. It has to guess. This guessing game costs time. Lots of it. You spend minutes, sometimes hours, crafting increasingly detailed textual descriptions. "It's the blue button, top right, next to the user avatar, not the one below it, the other blue button." The AI might finally land on the right component, `LoginButton

P.S. — markagent is the Chrome extension I use to ship pixel-precise UI feedback to AI coding agents. Free, local, no account.