Borrowing it
Nothing to install: this file belongs to Pantheon-Security/chrome-mcp-secure. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Pantheon-Security/chrome-mcp-secure/main/CLAUDE.mdgit clone --depth 1 https://github.com/Pantheon-Security/chrome-mcp-secureWrote 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/instructions/pantheon-security/chrome-mcp-secure/claude-md)<a href="https://agentmods.dev/instructions/pantheon-security/chrome-mcp-secure/claude-md"><img src="https://agentmods.dev/badge/instructions/pantheon-security/chrome-mcp-secure/claude-md.svg" alt="Measured on agentmods" 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 | $0.01339 | $0.01339 |
| Opus 5 | $0.00669 | $0.00669 |
| Sonnet 5 | $0.00268 | $0.00268 |
| Haiku 4.5 | $0.00134 | $0.00134 |
Grade A, and why
chrome-mcp-secure CLAUDE.md scanned grade A 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 7d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl http://localhost:9222/json How it starts
The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Chrome MCP Server - Claude Code Integration
Version: 2.1.0 Purpose: Secure Chrome DevTools Protocol automation with encrypted credential vault
Quick Start
# One-command setup (installs, builds, starts Chrome)
./setup.sh
# Verify connection
mcp__chrome-mcp-secure__health()
Available Tools
Connection & Status
health- Check Chrome connection and versionget_vault_status- Check credential vault encryption status
Navigation
navigate(url)- Navigate to URLbypass_cert_and_navigate(url)- Navigate with HTTPS cert bypassget_tabs()- List all Chrome tabs
Element Interaction
click_element(selector)- Click element by CSS selectorclick(x, y)- Click at coordinatestype(text)- Type text at cursor focusfill(selector, value)- Fill form field (clears first)
Data Extraction
get_text(selector)- Get element text contentget_page_info()- Get URL, title, interactive elementsget_page_state()- Get scroll position, viewport size
Page Actions
scroll(x, y)- Scroll to coordinatesscreenshot(fullPage?)- Capture screenshotwait_for_element(selector, timeout?)- Wait for element
Advanced
evaluate(expression)- Execute JavaScript
Secure Credential Tools
store_credential(name, type, email, password, domain)- Store encrypted credentialslist_credentials(type?, domain?)- List stored credentials (no passwords shown)get_credential(id)- Get credential metadatadelete_credential(id)- Remove a stored credentialupdate_credential(id, ...)- Update an existing credentialsecure_login(credentialId, ...)- Auto-fill login forms using stored credentials
Usage Examples
Basic Navigation and Inspection
// Check connection first
mcp__chrome-mcp-secure__health()
// Navigate to page
mcp__chrome-mcp-secure__navigate({ url: "https://example.com" })
// Get page info
mcp__chrome-mcp-secure__get_page_info()
// Take screenshot
mcp__chrome-mcp-secure__screenshot()
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.
- 7d ago First seen · 214 lines · 1,339 tokens per session scan A ff4074042421
chrome-mcp-secure CLAUDE.md is an instructions file published in the GitHub repository Pantheon-Security/chrome-mcp-secure (8 stars, last pushed 7mo ago), licensed MIT. It adds 1,339 tokens to every session, about $0.0067 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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