Codex getting browser DevTools access is the right direction.
AI coding agents should not guess at UI bugs from screenshots. They need console logs, network traces, DOM state, and perf profiles.
Vibecoding only works when the agent can inspect the mess.
Introducing developer mode for browser use in Chrome and the Codex in-app browser.
Codex can use the Chrome DevTools Protocol (CDP) to debug browser issues by profiling JavaScript performance and inspecting console output, network traffic, and page state.