Checktrail runs on your own machine — the client starts it, so there is no endpoint to ping. 533 installs a week from npm. Last commit 6 Nov 2026.
Local code validation with explicit execution trust and evidence of what actually ran.
What the code does
We read the source, 22 h ago · rules 995398eba69f
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.
fwrite(STDOUT,json_encode(['schemaVersion'=>2,'versions'=>['php'=>PHP_VERSION,...$pins['versions']],'entryCount'=>array_sum($counts),'counts'=>$counts,'clock'=>$config['clock'],'models'=>$config['models'],'runtime'=>['schemaVersion'=>1,'format'=>'runtime-inventory','producer'=>[…
const output = path.join(snapshot, file);
const child = spawn(executable, args, {
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 checktrail -- npx -y @stsepelin/checktrail{
"mcpServers": {
"checktrail": {
"command": "npx",
"args": [
"-y",
"@stsepelin/checktrail"
]
}
}
}[mcp_servers.checktrail]
command = "npx"
args = ["-y", "@stsepelin/checktrail"]{
"mcpServers": {
"checktrail": {
"command": "npx",
"args": [
"-y",
"@stsepelin/checktrail"
]
}
}
}{
"servers": {
"checktrail": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@stsepelin/checktrail"
]
}
}
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Checktrail — questions
Answers built from our own checks of this server.