Use Antigravity’s browser subagent to check real pages
The /browser command can inspect live sites and local frontends; logged-in access and automation limits still need explicit checks.
Google Antigravity has a /browser command that launches a browser subagent for live page interactions. Google describes navigation, DOM inspection, screenshots, and frontend verification, with Chrome DevTools integration in Antigravity 2.0. This makes it useful for connecting code changes to what actually appears in a browser.
A creator reports especially smooth browser work with Gemini 3.8 Flash and an existing Chrome session. That is a useful personal observation, not a guarantee about every site or profile. Google’s documentation calls the browser environment sandboxed and its codelab shows a permission step before starting a Chrome debugging session. Verify which profile and accounts the agent can access in your own installation.
Close the frontend feedback loop
After editing a component, ask /browser to open the local page, follow the key interaction, inspect the result, and check the console. Use its findings to fix a specific issue, then rerun the same flow. A screenshot and clear pass condition make the result easier to review.
Keep posting under your control
For research or drafting on a social platform, let the subagent gather permitted material and prepare a draft. Review the wording, audience, and destination yourself before any final submission. An existing login does not by itself authorize posting or broad access to everything in the profile.
Do not assume a bypass
Using Chrome does not promise to avoid reauthentication, CAPTCHAs, rate limits, or bot defenses. The site can still restrict automation, and account state may differ from the normal browser. Work within each site’s terms and verify permissions rather than treating the browser agent as an invisibility layer.
Copy a focused browser check
This prompt asks for observable evidence and a review point before any external action.
/browser Open the local page at [URL]. Check [specific interaction] at desktop and mobile widths, inspect the browser console for errors, and capture the result. Report the exact behavior and any issue you can reproduce. If a code fix is needed, return the evidence to the main coding task, make a scoped change, and repeat the same browser check. Do not submit forms, publish posts, or change external account settings without my explicit instruction.