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.
npx skills add samhvw8/dot-claude --skill chrome-devtoolsgit clone --depth 1 https://github.com/samhvw8/dot-claudeWrote 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.
[](https://agentmods.dev/skills/samhvw8/dot-claude/chrome-devtools)<a href="https://agentmods.dev/skills/samhvw8/dot-claude/chrome-devtools"><img src="https://agentmods.dev/badge/skills/samhvw8/dot-claude/chrome-devtools/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.
<a href="https://agentmods.dev/skills/samhvw8/dot-claude/chrome-devtools"><img src="https://agentmods.dev/badge/skills/samhvw8/dot-claude/chrome-devtools.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00143 | $0.01692 |
| Opus 5.5 | $0.00057 | $0.00677 |
| Sonnet 5.5 | $0.00029 | $0.00338 |
| Haiku 4.5 | $0.00014 | $0.00169 |
Grade B, and why
chrome-devtools scanned grade B with 1 finding 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 1mo 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- Manual install: `sudo apt-get install -y libnss3 libnspr4 libasound2t64 libatk1.0-0 libatk-bridge2.0-0 libcups2 libdrm2 libxkbcommon0 libxcomposite1 libxdamage1 libxfixes3 libxrandr2 libgbm1` The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
21 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.
- references/cdp-domains.md 17 KB
- references/performance-guide.md 21 KB
- references/puppeteer-reference.md 19 KB
- scripts/__tests__/selector.test.js 6.4 KB runs code
- scripts/.gitignore 12 B
- scripts/click.js 1.6 KB runs code
- scripts/console.js 1.7 KB runs code
- scripts/evaluate.js 1.1 KB runs code
- scripts/fill.js 1.4 KB runs code
- scripts/install-deps.sh 4.3 KB runs code
- scripts/install.sh 2.1 KB runs code
- scripts/lib/browser.js 2.4 KB runs code
- scripts/lib/selector.js 5.3 KB runs code
- scripts/navigate.js 994 B runs code
- scripts/network.js 2.7 KB runs code
- scripts/package-lock.json 42 KB
- scripts/package.json 321 B
- scripts/performance.js 3.8 KB runs code
- scripts/README.md 2.5 KB
- scripts/screenshot.js 1.6 KB runs code
- scripts/snapshot.js 3.4 KB runs code
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.
- 1mo ago First seen · 223 lines · 143 tokens per session scan B f47aeae5a59f
chrome-devtools is a skill published in the GitHub repository samhvw8/dot-claude (11 stars, last pushed 10mo ago), with no licence file. It adds 143 tokens to every session and 1,692 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
debug-optimize-lcp
Guides debugging and optimizing Largest Contentful Paint (LCP) using Chrome DevTools MCP tools. Use this skill whenever the user asks about LCP performance, slow page loads, Core Web Vitals optimization, or wants to understand why their page's main content takes too long to appear. Also use when the user mentions…
interactive-login
Log a CLI in with a browser/device-code flow (aws sso, gh, glab, gcloud, …) and save the result to the keychain so later commands can request it through execute.credentials.
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.
azure-messaging-webpubsub-java
Build real-time web applications with Azure Web PubSub SDK for Java. Use when implementing WebSocket-based messaging, live updates, chat applications, or server-to-client push notifications.
cua-driver
Use Cua Driver for desktop or browser tasks that are awkward or unavailable through Bash/APIs, or when the user explicitly wants GUI interaction: app testing, visual bug reproduction, form filling, calendar entry, screenshots, and demo recording. Also covers Cua setup; not OpenAI Codex Computer Use or web research.
open-design-browser
Inspect and exercise local HTML design artifacts with the existing agent-browser CLI, including screenshots and keyboard or interaction checks. Use when rendered evidence helps author or review a design; excludes browser installation, remote services, and unrelated browser automation.