Skarn runs on your own machine — the client starts it, so there is no endpoint to ping. 620 installs a week from npm. Last commit 1 Sep 2026.
Scans AI coding sessions and assistant configs for leaked secrets and risky hooks; local, redacted
What the code does
We read the source, 12 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
этот файл ставится пользователю, но в репозитории его нет
const res = spawnSync(binPath, process.argv.slice(2), { stdio: "inherit" });
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add skarn -- npx -y @skarn-security/skarn{
"mcpServers": {
"skarn": {
"args": [
"-y",
"@skarn-security/skarn"
],
"command": "npx"
}
}
}[mcp_servers.skarn]
command = "npx"
args = ["-y", "@skarn-security/skarn"]{
"mcpServers": {
"skarn": {
"args": [
"-y",
"@skarn-security/skarn"
],
"command": "npx"
}
}
}{
"mcpServers": {
"skarn": {
"args": [
"-y",
"@skarn-security/skarn"
],
"command": "npx"
}
}
}Alternatives to Skarn
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Local secret & credential checks for AI-assisted dev — runs on your machine, results redacted.
Stop AI coding agents from leaking API keys. Local proxy swaps real secrets for phm_ tokens.
Security firewall for AI agents — scans MCP calls for injection, secrets, and risks.
Local-first security check for AI coding agents: secrets, .env exposure, git-history leaks, CVEs.
Skarn — questions
Answers built from our own checks of this server.