browser-testing-with-devtools SKILL.md skillB
browser-testing-with-devtools from gastonchevarria/god-mode is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add gastonchevarria/god-mode/browser-testing-with-devtools@git:20261014.522e28aPins git:20261014.522e28a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- gastonchevarria/god-mode
- Path
plugins/god-mode-dev/skills/browser-testing-with-devtools/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261014.522e28a, committed Oct 14, 2026
- First version recorded
- Sep 26, 2026
- Size
- 14,398 bytes
- Repository stars
- 3
- License
- MIT
Tests pages in real Chrome via the chrome-devtools MCP: DOM, console errors, network, performance traces, screenshots. Use for 'check it in the browser' or 'inspect the network call'.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Browser Testing with DevTools
## Overview
Use Chrome DevTools MCP to give your agent eyes into the browser. This bridges the gap between static code analysis and live browser execution — the agent can see what the user sees, inspect the DOM, read console logs, analyze network requests, and capture performance data. Instead of guessing what's happening at runtime, verify it.
## When to Use
- Building or modifying anything that renders in a browser
- Debugging UI issues (layout, styling, interaction)
- Diagnosing console errors or warnings
- Analyzing network requests and API responses
- Profiling performance (Core Web Vitals, paint timing, layout shifts)
- Verifying that a fix actually works in the browser
- Automated UI testing through the agent
**When NOT to use:** Backend-only changes, CLI tools, or code that doesn't run in a browser.
## Setting Up Chrome DevTools MCP
### Installation
Add the following to your project's `.mcp.json` or Claude Code settings:
```json
{
"mcpServers": {
"chrome-devtools": {
"command": "npx",
"args": ["-y", "chrome-devtools-mcp@latest", "--isolated"]
}
}
}
```
…Read the whole file at its exact version.
How to install
mdr add gastonchevarria/god-mode/browser-testing-with-devtools@sha256:e19676469c092d60The line at the top of this page pins the label git:20261014.522e28a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_sk2djxhhofkuly2t)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 26, 2026 and Oct 14, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.522e28a latest | 2026-10-14 | 522e28a | 14,398 B | B | view · diff |
| git:20260926.2e7e5db | 2026-09-26 | 2e7e5db | 14,492 B | B | view · diff |
| git:20260926.941aa31 | 2026-09-26 | 941aa31 | 14,539 B | B | view |
Audit of the latest version
- fail: No prompt-injection phrasing (matched: Ignore previous instructions)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (14398 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
gastonchevarria/god-mode · 3 stars · license MIT · pushed 2026-10-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sk2djxhhofkuly2t GET https://markdownregistry.com/api/v1/resolve?ref=gastonchevarria/god-mode/browser-testing-with-devtools GET https://markdownregistry.com/api/v1/blob/e19676469c092d609f94d3f7cbb17a6e994be0d3854f6cef5ebecc3bb0ac3c02
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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