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agent-browser

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Drive a real browser with the agent-browser CLI (headless Chromium over CDP). Use for any browser task: verifying a UI change, taking a screenshot, walking a web page, filling a form, extracting page text, reproducing a frontend bug, or attaching UI evidence to a PR, issue, Linear comment, or Slack thread. Starts with a `command -v agent-browser` check and falls back to manual QA on the slim worker image. Screenshots are kept on agent-fs and embedded in GitHub as user attachments. This is the only browser automation tool; do not use qa-use.

templates/skills/agent-browser/SKILL.md

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Network or broad shell
Last checked
Nov 10, 2026

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1,038
Repository last updated
Nov 10, 2026
License
MIT

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# agent-browser

`agent-browser` (vercel-labs) is the swarm's browser-automation CLI. It drives a headless Chromium over CDP and returns accessibility-tree snapshots with compact `@eN` refs. Use it for any browser task: verify a UI change, take a screenshot, walk a page, fill a form, extract page text, reproduce a frontend bug, or attach UI evidence to a PR, issue, Linear comment, or Slack thread.

Do not use `qa-use`. It is not installed in the worker image any more.

## Step 0: check that the CLI is present

The full worker image (`agent-swarm-worker:latest`) ships `agent-browser` and a headless Chromium. The slim image (`:slim`) has neither. The first command of any browser work is:

```bash
command -v agent-browser
```
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