MCP, MCP server
Chrome Devtools Mcp
A Model Context Protocol (MCP) server that provides Chrome DevTools Protocol integration through MCP.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 80f42a58bdf2, unchanged since the check below.
INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED OBFUSCATION_FILE_OVER_READ_CAP
Why this grade
- INSTALL_UNPINNED Low
Dependencies use a range or git URL with no lockfile.
requirements.txt, line 1
mcp>=1.0.0 - NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
test_devtools_server.py, line 270
"expression": "fetch('data:text/plain,test').then(r => r.text())", - SECRETS_PATH_DOTENV Low
Mentions a .env file.
.dxtignore, line 37
.env - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
test_devtools_server.py, line 82
chrome_process = subprocess.Popen(cmd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) - OBFUSCATION_FILE_OVER_READ_CAP Note
A file was over the read cap and was not fully read.
uv.lock, line 1
version = 1
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
test_devtools_server.py, line 82
chrome_process = subprocess.Popen(cmd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
src/tools/chrome_management.py, line 290
process = subprocess.Popen(
Install and update
Concern
dependencies are not pinned.
INSTALL_UNPINNED
requirements.txt, line 1
mcp>=1.0.0
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
test_devtools_server.py, line 270
"expression": "fetch('data:text/plain,test').then(r => r.text())",
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
.dxtignore, line 36
# Development files
.dxtignore, line 37
.env
.dxtignore, line 38
.env.example
Show more
README.md, line 71
# Install with environment file (copy .env.example to .env first)
README.md, line 72
cp .env.example .env
README.md, line 73
# Edit .env with your settings
README.md, line 74
mcp install server.py -n "Chrome DevTools MCP" --with-editable . -f .env
README.md, line 507
- **Environment variables not working**: Verify `.env` file format or `-v` flag syntax
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Note
a file was over the read cap and was not fully read.
OBFUSCATION_FILE_OVER_READ_CAP
uv.lock, line 1
version = 1
docs/browser_protocol.json, line 1
{
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Note
the latest commit is more than 365 days old.
MAINTAINER_STALE
No file path was stored.
2025-10-06T08:44:06+01:00
Note
Hygiene check of commit 80f42a58bdf2. requests shell access. The manifest names this permission. dependencies are not pinned. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read. the latest commit is more than 365 days old.
Date and source
Date checked:
github.com
Commit graded: 80f42a58bdf25c5cf3593ebed56decd1c6ab0bc7
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