Hover over your UI element to get its exact location in code
CDP debugger plus source maps gives AI agents O(1) file lookup instead of grep.

Alt+C copies exact file path and line number from browser DOM to skip grep sessions.
Frontend developers, AI coding assistant users
React DevTools · Sourcegraph · Cursor
CDP debugger plus source maps gives AI agents O(1) file lookup instead of grep.
Numbered markers plus structured prompts beat typing paragraphs for Claude Code.
ASCII rendering cuts tokens dramatically, but browser automation and LLM observation are well-trodden ground.
Accessibility tree API beats OCR—Claude controls Spotify without screenshots.
Extension unavailable on Chrome Web Store, and WhatTheFont already does this free.
Million Dollar Homepage concept but for AI agents instead of humans.