Dev Browser Skill

Name: Dev Browser Skill
Brand: AgentVolt
Price: 49.00 USD
Availability: InStock

Gives Claude a real browser it can click, type into, and log in with, for testing and interacting with live web apps.

Development / Browser Automationdevelopmentbrowser-automation

by AgentVoltv1.0.0Published 1y ago2 installs

Free to sign up · every skill included with AgentVolt Pro

Before & after

Same prompt, same agent — the only difference is the skill.

Prompt“Test my login flow across Chrome, Safari, and Firefox simultaneously.”

Beforegeneric AI agent

Testing your login flow across different browsers is a good idea to ensure compatibility. You'll need to access each browser and test the flow manually. Each browser has slightly different behavior so it's important to test thoroughly. You could go through the login steps in each one and see if there are any differences. Keep notes on what works and what doesn't. You might find issues with cookies or session handling. Testing takes time but helps catch problems before users encounter them.

Afterwith Dev Browser Skill

DEV BROWSER SKILL: CROSS-BROWSER LOGIN TEST

SETUP (3 concurrent browser instances):
Target app: app.example.com/login
Test account: testuser@example.com / TestPass123
Goal: Verify login flow, session persistence, redirect landing page

BROWSER 1: Chrome
→ Navigate to /login page
→ Fill email field (click, type)
→ Fill password field (click, type)
→ Click 'Sign In' button
→ Wait for redirect to dashboard (timeout: 5s)
→ Screenshot: 'Chrome login success'
→ Verify: localStorage has auth_token
→ Log: 'PASS: Chrome login completed in 2.3s'

BROWSER 2: Safari (parallel)
→ Same steps, concurrent execution
→ Screenshot: 'Safari login success'
→ Verify: sessionStorage (Safari different cookie handling)
→ Log: 'PASS: Safari login completed in 2.1s'

BROWSER 3: Firefox (parallel)
→ Same steps, concurrent
→ Screenshot: 'Firefox login success'
→ Verify: IndexedDB for auth cache (Firefox preference)
→ Log: 'PASS: Firefox login completed in 2.4s'

DIFFERENCE DETECTION:
Compare screenshots (pixel difference analysis)
→ Chrome button appears 2px higher (layout shift, non-critical)
→ Safari: Input field missing bottom border (CSS bug, critical)
→ Firefox: Form shows password hints (UX difference, not bug)

SESSION PERSISTENCE TEST (after login on all 3):
Close browser → reopen → navigate to /dashboard
Expected: Auto-logged-in (auth token valid)
Chrome: PASS (token persists)
Safari: FAIL (requires re-login, token cleared on close)
Firefox: PASS (token persists)

REPORT SUMMARY:
Login UX working on 2/3 browsers
Bug filed: Safari session handling (priority: medium, affects 15% of users)

Test execution time: 3min (parallel) vs 9min (sequential)
Live testing workflow prevents manual browser-hopping

About this skill

name: dev-browser-skill description: Use when Gives Claude a real browser it can click, type into, and log in with, for testing and interacting with live web apps.

Dev Browser Skill

Dev Browser equips Claude with real browser control so it can navigate, click, fill forms, and log into live sites as part of a coding or testing workflow, rather than only reading static code.

What you get

Public GitHub repo with the skill/tool definition and install instructions.

Customize your output

Point it at any site or app under test
combine with other skills for end-to-end test flows.

Example output

Live browser interaction demoed in the video's ranked skill rundown.

Best for

Developers who need Claude to test or operate real web apps.

SKILL.md preview

SKILL.md

---
name: dev-browser-skill
description: Use this skill when a coding or testing task needs Claude to actually click, type into, and log in to a live web app instead of only reading static code.
version: 1.0.0
category: Development / Browser Automation
author: AgentVolt
license: proprietary
tags:
  - development
  - browser-automation
  - standard
---

# Dev Browser Skill

Gives Claude a real, controllable browser so it can drive a live web app as part of development or testing, rather than reasoning about code in the abstract.

## When to use

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