Dev Machine Guard

StepSecurity Dev Machine Guard

Scan your dev machine for AI agents, MCP servers, IDE extensions, suspicious files, and risky package-manager configs — in seconds.

Why Dev Machine Guard?

Developer machines are the new attack surface. They hold high-value assets — GitHub tokens, cloud credentials, SSH keys — and routinely execute untrusted code through dependencies and AI-powered tools. Recent supply chain attacks have shown that malicious VS Code extensions can steal credentials, rogue MCP servers can access your codebase, and compromised npm packages can exfiltrate secrets.

EDR and traditional MDM solutions monitor device posture and compliance, but they have zero visibility into the developer tooling layer:

Capability	EDR / MDM	Dev Machine Guard
IDE extension audit		Yes
AI agent & tool inventory		Yes
MCP server config audit		Yes
Package scanning (Node.js, Homebrew, Python, system)		Yes
Package-manager config audit (registry, cooldown, auth)		Yes
Suspicious file / IOC detection		Yes
Cross-platform (macOS, Windows, Linux)	Yes	Yes
Device posture & compliance	Yes
Malware / virus detection	Yes

Dev Machine Guard is complementary to EDR/MDM — not a replacement. Deploy it alongside your existing tools via MDM (Jamf, Kandji, Intune) or run it standalone.

Quick Start

The steps below install the binary directly and are intended for community users evaluating Dev Machine Guard on a single machine.

Enterprise customers should not install the binary manually. Deploy Dev Machine Guard across your fleet using the loader script through your MDM or EDR tooling. See the Installation Script documentation for the supported, auto-updating deployment flow.

Install from release (community)

Download the latest binary for your platform from GitHub Releases. Release asset filenames embed the version (for example, stepsecurity-dev-machine-guard-1.17.0-darwin), so the snippets below resolve the latest tag first rather than hardcoding a version.

macOS (universal binary — Apple Silicon and Intel)

VERSION=$(curl -fsSL https://api.github.com/repos/step-security/dev-machine-guard/releases/latest | grep '"tag_name"' | cut -d'"' -f4 | sed 's/^v//')
curl -fsSL "https://github.com/step-security/dev-machine-guard/releases/download/v${VERSION}/stepsecurity-dev-machine-guard-${VERSION}-darwin" -o stepsecurity-dev-machine-guard
chmod +x stepsecurity-dev-machine-guard

# Run the scan
./stepsecurity-dev-machine-guard

Windows (PowerShell)

$version = (Invoke-RestMethod https://api.github.com/repos/step-security/dev-machine-guard/releases/latest).tag_name.TrimStart('v')
$arch = if ($env:PROCESSOR_ARCHITECTURE -eq 'ARM64') { 'arm64' } else { 'amd64' }
Invoke-WebRequest -Uri "https://github.com/step-security/dev-machine-guard/releases/download/v$version/stepsecurity-dev-machine-guard-$version-windows_$arch.exe" -OutFile "stepsecurity-dev-machine-guard.exe"