chrome-devtools

A browser inspection and automation tool based on Chrome DevTools, the built-in toolkit for examining web pages. It can interact with pages, inspect errors and requests, capture screenshots, and examine performance.

In plain words
What is it for?
Use it to navigate sites, fill in forms, inspect console and network activity, take screenshots, and find page-performance bottlenecks.
Why use it?
It brings common browser testing and debugging work into an agent workflow, so you can investigate problems without switching between many manual DevTools panels.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/boshi-xixixi/traeskill/chrome-devtools
Any agent
npx skills add boshi-xixixi/TraeSkill --skill chrome-devtools
Clone the repo
git clone --depth 1 https://github.com/boshi-xixixi/TraeSkill

Made for: Claude Code, Codex.

Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 929 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00038 $0.00929
Opus 5 $0.00019 $0.00464
Sonnet 5 $0.00008 $0.00186
Haiku 4.5 $0.00004 $0.00093

Measured 3d ago against content hash e85ec55f6831, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

chrome-devtools 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 3d 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:

.trae/Skills/.agents/skills/chrome-devtools/SKILL.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Chrome DevTools Agent

Overview

A specialized skill for controlling and inspecting a live Chrome browser. This skill leverages the chrome-devtools MCP server to perform a wide range of browser-related tasks, from simple navigation to complex performance profiling.

When to Use

Use this skill when:

  • Browser Automation: Navigating pages, clicking elements, filling forms, and handling dialogs.
  • Visual Inspection: Taking screenshots or text snapshots of web pages.
  • Debugging: Inspecting console messages, evaluating JavaScript in the page context, and analyzing network requests.
  • Performance Analysis: Recording and analyzing performance traces to identify bottlenecks and Core Web Vital issues.
  • Emulation: Resizing the viewport or emulating network/CPU conditions.

Tool Categories

1. Navigation & Page Management

  • new_page: Open a new tab/page.
  • navigate_page: Go to a specific URL, reload, or navigate history.
  • select_page: Switch context between open pages.
  • list_pages: See all open pages and their IDs.
  • close_page: Close a specific page.
  • wait_for: Wait for specific text to appear on the page.

2. Input & Interaction

  • click: Click on an element (use uid from snapshot).
  • fill / fill_form: Type text into inputs or fill multiple fields at once.
  • hover: Move the mouse over an element.
  • press_key: Send keyboard shortcuts or special keys (e.g., "Enter", "Control+C").
  • drag: Drag and drop elements.
  • handle_dialog: Accept or dismiss browser alerts/prompts.
  • upload_file: Upload a file through a file input.

3. Debugging & Inspection

  • take_snapshot: Get a text-based accessibility tree (best for identifying elements).
  • take_screenshot: Capture a visual representation of the page or a specific element.
  • list_console_messages / get_console_message: Inspect the page's console output.
  • evaluate_script: Run custom JavaScript in the page context.
  • list_network_requests / get_network_request: Analyze network traffic and request details.

Read the full file on GitHub · 98 lines

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.

  1. 3d ago First seen · 98 lines · 38 tokens per session scan A e85ec55f6831

Subscribe to this mod's changes

chrome-devtools is a skill published in the GitHub repository boshi-xixixi/TraeSkill (259 stars, last pushed 3mo ago), licensed MIT. It adds 38 tokens to every session and 929 once invoked, about $0.0002 per session on Opus 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.

Related

Other skills, from other repositories

electron

Automate Electron desktop apps (VS Code, Slack, Discord, Figma, Notion, Spotify, etc.) using agent-browser via Chrome DevTools Protocol. Use when the user needs to interact with an Electron app, automate a desktop app, connect to a running app, control a native app, or test an Electron application. Triggers include…

vercel-labs/agent-browser · 112 tokens

use-agent-browser-for-airi

Test AIRI display-model imports with agent-browser across stage-tamagotchi Electron, stage-web, and stage-pocket mobile web layouts. Use when uploading and verifying contributor-supplied Live2D ZIP, VRM, or MMD ZIP/PMX/PMD files through AIRI's model selector, including onboarding bypass, format-specific import…

moeru-ai/airi · 87 tokens

opencli-sitemap-author

Use when creating or maintaining OpenCLI site sitemaps: agent-facing navigation, page-state, action, workflow, API-reference, pitfall, and fallback knowledge for a website. Use after browser exploration discovers durable site context, when a sitemap is stale, or when promoting local site knowledge into the repo.

jackwener/OpenCLI · 67 tokens

playwright

Use when the task requires automating a real browser from the terminal (navigation, form filling, snapshots, screenshots, data extraction, UI-flow debugging) via playwright-cli or the bundled wrapper script.

XiaomiMiMo/MiMo-Code · 45 tokens

pinchtab-mcp

Use this skill when a task requires browser automation through PinchTab's MCP server connected to a remote browser instance. Covers navigation, element interaction, data extraction, form filling, multi-step flows, and session management via MCP tools.

pinchtab/pinchtab · 52 tokens

peekaboo

Capture and automate macOS UI with the Peekaboo CLI.

the-open-agent/openagent · 17 tokens