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At Google I/O Connect Berlin, Google demos building Chrome extensions with Antigravity

June 25, 2026 at 10:26 EDT

AI Agents
Software Dev & Coding
Foundation Models

On June 25, 2026, at Google I/O Connect Berlin, Chrome Extensions DevRel Lead Sebastian Benz demonstrated and explained how to customize Chrome to your exact needs using the AI agent development environment "Antigravity" and "Chrome DevTools for Agents."

June 25, 2026 · Google I/O Connect Berlin

Agents Take the Wheel: Building Chrome Extensions in Minutes

Google's agentic platform Antigravity, paired with Chrome DevTools for Agents, lets AI agents autonomously drive the browser to plan, build, verify and debug extensions — shifting from code-completion to "agent-first" development.

$200

Paid extension rebuilt from scratch in minutes

~10 min

To solve niche problems like cross-profile data sharing

Free

For personal use (with rate limits)

The Agent-Driven Build Loop

A `/browser` slash command launches a sub-agent that controls Chrome via the MCP server.

PLAN

Agent plans the task

→

EXECUTE

Build & drive Chrome

→

INSPECT

DOM, console, storage, network

→

VERIFY

Auto-fix UI bugs

▲ What developers praise

Creating extensions is dramatically faster
Niche problems solved in ~10 minutes
UI bugs fixed autonomously via browser control
Crawl a rival product and reproduce features

▼ Where the tooling struggles

Low click accuracy — repeated wrong clicks
Heavy RAM usage and sluggish operation
Fast quota consumption, frequent agent termination
Slow navigation and screenshot actions

The verdict

The agents are highly capable — but the stability and performance of the underlying tooling remain a challenge.

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