# Verify In Browser

Proves a Voyager change on the live host page and shows the evidence as screenshots.

- Repository: https://github.com/voyager-crew/voyager (20524 stars)
- Category: Design
- License: GPL-3.0
- Last updated: 2026-11-01
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add voyager-crew/voyager --skill verify-in-browser -g -a claude-code -y`
Codex: `npx skills add voyager-crew/voyager --skill verify-in-browser -g -a codex -y`
Cursor: `npx skills add voyager-crew/voyager --skill verify-in-browser -g -a cursor -y`
Gemini CLI: `npx skills add voyager-crew/voyager --skill verify-in-browser -g -a gemini-cli -y`

## Description

Proves a Voyager change on the live host page and shows the evidence as screenshots. Use after changing content scripts, injected CSS, MAIN-world scripts or plugin site code, when a check needs a setting or plugin switched (the dev build flips it without the popup), and when someone reports a feature missing or still old in their browser.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Verify a change in the live browser

Unit fixtures prove the fixture, not today's host DOM. Run the whole loop yourself: build, load, drive the page, capture, show. The person only steps in for what no tool can do (signing in, 2FA, a CAPTCHA); say which one and why.

Copy this checklist and tick it off:

```
- [ ] Build loaded: the tab shows a marker or behavior from this change
- [ ] Workflow driven on each changed site
- [ ] Crops saved: changed element, light and dark when CSS changed
- [ ] Evidence shown: paths, or one published page when several crops
- [ ] Test residue listed; own tabs closed
```

## 1. Load the build

Pick the build by what the check proves:

The rest: https://github.com/voyager-crew/voyager/blob/HEAD/.agents/skills/verify-in-browser/SKILL.md