What is tabz-browser?

A skill for controlling Chrome through TabzChrome's MCP tools, which let an agent interact with browser pages. It covers screenshots, forms, responsive-device testing, network capture, console logs, and text-to-speech.

It is for taking screenshots, filling forms, testing mobile layouts, inspecting failed requests, checking browser errors, and sending audio notifications.

It provides repeatable procedures for browser tasks and for finding visual, network, and JavaScript problems.

How GGPrompts/TabzChrome configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to GGPrompts/TabzChrome. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/GGPrompts/TabzChrome/main/.claude/skills/tabz-browser/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/GGPrompts/TabzChrome

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ggprompts/tabzchrome/tabz-browser/github.svg)](https://agentmods.dev/skills/ggprompts/tabzchrome/tabz-browser)

Your own site

<a href="https://agentmods.dev/skills/ggprompts/tabzchrome/tabz-browser"><img src="https://agentmods.dev/badge/skills/ggprompts/tabzchrome/tabz-browser/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ggprompts/tabzchrome/tabz-browser"><img src="https://agentmods.dev/badge/skills/ggprompts/tabzchrome/tabz-browser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 776 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00038	$0.00776
Opus 5.5	$0.00015	$0.00310
Sonnet 5.5	$0.00008	$0.00155
Haiku 4.5	$0.00004	$0.00078

Measured 2mo ago against content hash f7a8bc44b0cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tabz-browser scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

browser — 88% identical, 16 lines differ

.claude/skills/tabz-browser/SKILL.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

TabzChrome Browser Automation

Control Chrome via MCP tools for screenshots, interaction, debugging, and notifications.

Quick Start

Use mcp-cli to discover and call tools:

# Get tool schema (REQUIRED before calling)
mcp-cli info tabz/tabz_screenshot

# Call tool
mcp-cli call tabz/tabz_screenshot '{}'

Core Workflows

Screenshot a Page

# Get current tab info
mcp-cli call tabz/tabz_get_page_info '{}'

# Take screenshot
mcp-cli call tabz/tabz_screenshot '{}'
# Returns file path - use Read tool to view

Debug Network/API Issues

# 1. Enable capture BEFORE triggering action
mcp-cli call tabz/tabz_enable_network_capture '{}'

# 2. Trigger the action on page

# 3. Get failed requests (status >= 400)
mcp-cli call tabz/tabz_get_network_requests '{"statusMin": 400}'

# 4. Check console for JS errors
mcp-cli call tabz/tabz_get_console_logs '{"level": "error"}'

Test Responsive Design

# Emulate device
mcp-cli call tabz/tabz_emulate_device '{"device": "iPhone 14"}'

# Take screenshot
mcp-cli call tabz/tabz_screenshot '{}'

# Clear emulation
mcp-cli call tabz/tabz_emulate_clear '{}'

Fill and Submit Form

mcp-cli call tabz/tabz_fill '{"selector": "#email", "value": "[email protected]"}'
mcp-cli call tabz/tabz_click '{"selector": "button[type=submit]"}'

Notify User (TTS)

mcp-cli call tabz/tabz_speak '{"text": "Task complete"}'

Performance Profiling

mcp-cli call tabz/tabz_profile_performance '{}'
# Returns: DOM nodes, JS heap, event listeners, timing

DOM Tree Inspection

mcp-cli call tabz/tabz_get_dom_tree '{"maxDepth": 3}'

Tool Categories

Category	Count	Key Tools
Screenshots	2	screenshot, screenshot_full
Interaction	4	click, fill, get_element
Network	3	enable_network_capture, get_network_requests
DOM/Debug	4	get_dom_tree, get_console_logs, profile_performance
Emulation	6	emulate_device, emulate_geolocation
Audio/TTS	3	speak, list_voices, play_audio
Tabs	5	list_tabs, open_url, switch_tab
Cookies	5	cookies_get, cookies_list

Read the full file on GitHub · 116 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 116 lines · 38 tokens per session scan A f7a8bc44b0cf

Subscribe to this mod's changes

tabz-browser is a skill published in the GitHub repository GGPrompts/TabzChrome (149 stars, last pushed 1mo ago), licensed MIT. It adds 38 tokens to every session and 776 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Browser automation E2E testing Testing

tabz-browser next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
tabz-browserGGPrompts/TabzChrome	Skill	149	1mo ago	MIT	A	38	Claude Code
browsegarrytan/gstack	Skill	140k	yesterday	MIT	B	32	Claude Code
cua-driverdavidondrej/skills	Skill	4.3k	3d ago	MIT	A	68	Claude Code, Codex
create-verification-skillget-bb/bb	Skill	4.9k	yesterday	MIT	A	57	Claude Code, Codex
browser-qahashgraph-online/awesome-codex-plugins	Skill	1.5k	yesterday	Apache-2.0	A	58	Claude Code, Codex
webapp-testinganthropics/skills	Skill	188k	9d ago	none	A	35	Claude Code
test-electron-appPostHog/posthog-foss	Skill	728	yesterday	MIT	A	112	Claude Code

TabzChrome: Skill for Claude Code