Claude Code, Plugin
Chrome Devtools Mcp
Control and inspect a live Chrome browser from your coding agent.
Compatibility: Portable across standard formats.
Grade D
Two or more Medium findings, or a High finding. Only try it in a sandbox.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit bf8c6d9bc70d.
NETWORK_HOST_FROM_INPUT INSTALL_LIFECYCLE_HOOK SECRETS_PATH_CREDENTIAL
Why this grade
- NETWORK_HOST_FROM_INPUT High
A file takes a URL or endpoint as input and has no fixed host list.
scripts/verify-server-json-version.ts, line 45
const downloadCmd = `curl -L "${downloadUrl}" | tar xz -C "${tmpDir}" ${binName}`; - INSTALL_LIFECYCLE_HOOK Medium
A package install hook (preinstall, install, postinstall or prepare) runs a script.
package.json, line 30
prepare - SECRETS_PATH_CREDENTIAL Medium
Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).
src/bin/check-latest-version.ts, line 17
// honors .npmrc files at every scope and respects npm_config_registry,
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Concern
can delete files.
PERMISSION_DELETE_FILES
scripts/post-build.ts, line 29
fs.unlinkSync(devtoolsTs);
scripts/verify-server-json-version.ts, line 76
fs.rmSync(tmpDir, {recursive: true, force: true});
src/daemon/client.ts, line 137
fs.unlinkSync(pidFilePath);
Show more
src/daemon/client.ts, line 230
fs.rmSync(pidFilePath, {force: true});
src/daemon/client.ts, line 240
fs.unlinkSync(pidFilePath);
src/daemon/daemon.ts, line 228
fs.unlinkSync(socketPath);
src/daemon/daemon.ts, line 295
fs.unlinkSync(socketPath);
src/daemon/daemon.ts, line 302
fs.unlinkSync(pidFilePath);
src/utils/check-for-updates.ts, line 85
const child = child_process.spawn(
Install and update
Concern
runs a script at install time.
INSTALL_LIFECYCLE_HOOK
package.json, line 30
prepare
Network
Serious
accepts a host from input, with no fixed list in this file. can reach a host that is not written as a fixed address.
NETWORK_HOST_FROM_INPUT NETWORK_NO_FIXED_HOST
scripts/verify-server-json-version.ts, line 45
const downloadCmd = `curl -L "${downloadUrl}" | tar xz -C "${tmpDir}" ${binName}`;
scripts/eval_scenarios/cookie_debugging_test.ts, line 20
fetch('/api/user', {
scripts/eval_scenarios/network_test.ts, line 19
fetch('/network_test.html'); // Self fetch to ensure at least one request
Show more
scripts/profile/inspector.ts, line 43
const webSocket = new WebSocket(url);
src/McpContext.ts, line 1249
const response = await fetch(currentUrl, {redirect: 'manual'});
src/bin/check-latest-version.ts, line 41
const response = await fetch(`${getRegistry()}/chrome-devtools-mcp/latest`);
src/config/cli-options.ts, line 403
> document.title` or `async () => await fetch("example.com")`.\nExample with arguments
src/telemetry/watchdog/ClearcutSender.ts, line 203
const response = await fetch(this.#clearcutEndpoint, {
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV
scripts/count_tokens.ts, line 12
const ai = new GoogleGenAI({apiKey: process.env.GEMINI_API_KEY});
scripts/eval_gemini.ts, line 181
const apiKey = process.env.GEMINI_API_KEY;
src/bin/check-latest-version.ts, line 17
// honors .npmrc files at every scope and respects npm_config_registry,
Show more
src/config/ServerConfig.ts, line 186
const env = options?.env ?? process.env;
.gitignore, line 78
# dotenv environment variable files
.gitignore, line 79
.env
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
package-lock.json, line 1
{
src/third_party/lighthouse-devtools-mcp-bundle.js, line 1
/**
tests/fixtures/example.heapsnapshot, line 1
{"snapshot":{"meta":{"node_fields":["type","name","id","self_size","edge_count","detachedness"],"node_types":[["hidden","array","string","object","code","closure","regexp","number"
Show more
tests/fixtures/heap-1.heapsnapshot, line 1
{"snapshot":{"meta":{"node_fields":["type","name","id","self_size","edge_count","detachedness"],"node_types":[["hidden","array","string","object","code","closure","regexp","number"
tests/fixtures/heap-2.heapsnapshot, line 1
{"snapshot":{"meta":{"node_fields":["type","name","id","self_size","edge_count","detachedness"],"node_types":[["hidden","array","string","object","code","closure","regexp","number"
tests/fixtures/heap-3.heapsnapshot, line 1
{"snapshot":{"meta":{"node_fields":["type","name","id","self_size","edge_count","detachedness"],"node_types":[["hidden","array","string","object","code","closure","regexp","number"
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit bf8c6d9bc70d. can delete files. runs a script at install time. accepts a host from input, with no fixed list in this file. 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.
Date and source
Date checked:
github.com
Commit graded: bf8c6d9bc70d24523c353f43775a6542a45e8c56
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