Developer Tools

Every web developer uses Chrome DevTools. We inspect elements, read console logs, watch network requests, throttle CPU, emulate mobile screens, record performance traces, check storage, debug JavaScript, and capture screenshots. Most of that feels like a browser UI. Under the hood, there is a protocol. That protocol is Chrome DevTools Protocol, usually shortened to CDP. CDP is the browser debugging API that lets tools instrument, inspect, debug, and profile Chrome, Chromium, and other Blink-based browsers. Chrome DevTools itself uses this protocol. Many automation and debugging tools also build on it directly or indirectly. ...

Coding agents are useful when they can read code, edit files, run tests, and explain errors. But web development has a problem that does not fit neatly inside the file system: the real bug often lives in the browser. A React component may look fine in code but overflow on mobile. An API call may fail only after a specific login state. A button may be present in the DOM but not clickable. A performance issue may come from layout shifts, long tasks, font loading, image decoding, or network waterfalls. A console error may point to bundled JavaScript that needs source maps to be useful. ...

When I use Claude Code, I am not just using a model that generates text. I am using a tool-driven coding environment that can inspect files, search code, edit content, run shell commands, and delegate work to subagents. That tool layer is the real reason Claude Code feels different to me from a normal chat UI. Instead of asking: Can the model explain my code? I can ask: Can the model inspect the repo, find the bug, patch the file, and run the command needed to verify the fix? ...