Real browser debugging replay

Watch an agent find the broken checkout click

DevSnoop lets Codex, Claude Code, Cursor, and other local agents use your real Chrome tab. The agent clicks the UI, reads browser failures, and returns the exact evidence you need to fix the bug.

The whole prompt

Assuming the DevSnoop skill is installed

Debug why checkout does not start in Chrome with DevSnoop.
Finds the right Chrome tab, or opens one if needed.
Clicks the relevant UI and reads the browser failure.
Reports selectors, console logs, network errors, and visual state.
No screenshot guessing before the agent acts.
Selectors, HTTP status, and final visual state in one report.
Works against the real Chrome tab you already use.

Browser evidence out

What the agent reports back

Agent report

  • Found button: text "Start checkout", selector button[data-checkout]
  • Clicked button[data-checkout] on the active Chrome tab
  • Network failure: POST /api/checkout returned 401
  • Console: no JavaScript exception after click
  • Visual state: stayed on pricing page; no Stripe redirect
  • Fix target: authenticate before checkout or show login CTA

Why this matters

The agent knows which element it clicked.

It sees the failed browser request without you opening DevTools.

It can tell whether the page changed after the action.

The report gives you the next implementation step.