Find and fix the issues that matter in your code (SAST)
Fix vulnerabilities in open source dependencies and block malware
Find and fix hardcoded secrets with semantic analysis
Scan and fix AI-generated code the moment it's written
Combine AI reasoning with rule-based analysis for detection, triage, and remediation
Automate, manage, and enforce security across your organization
Build and deploy security pipelines that combine static analysis with AI at scale
Protect against software supply chain attacks
Increase security while accelerating development
Prevent the most critical web application security risks
Protect Your Code with Secure Guardrails
Mitigate software supply chain risks
Increase security while accelerating development
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Semgrep Guardian
A plugin for securing ai generated codeCoding agents install malicious packages, hardcode secrets, and write vulnerable patterns. Guardian stops each one at generation time, so your developers ship AI-written code without shipping the risk.
Prevent agents from making security mistakes, in realtime
Your agent will make security mistakes. Guardian stops them.
Anyone can code now. And that means anyone can make a mistake.
Guardian can find and fix security issues before code leaves their laptop.
How Guardian stops them
Blocks Malicious Dependencies
Your agent can't tell a real dependency from a malicious one.
Guardian's firewall blocks malware before install, at the network layer, before it ever touches a developer's laptop.
Prevents Hardcoded Credentials
Every leaked secret in your commit history is a breach waiting to happen.
Guardian catches credentials before they're committed and sets environment variables automatically.
Secure Code By Default
Guardian scans for unsafe patterns at generation, the cheapest time to catch a vulnerability.
Insecure practices are caught as it's written, not in production.
Remove human review without increasing security risk
You set the rules
Guardian enforces them
Block hallucinated and malicious dependencies before they install. Keep API keys and cloud credentials out of version control. Hold every agent to the same coding standards, no matter which IDE your developers pick. These are the guardrails security teams have always wanted and could not enforce at scale, until now.
Guardian enforces them
The policies you have carried in your head for years become rules that fire automatically the moment an agent writes code. OWASP violations, leaked secrets, and suspicious packages get caught and fixed before they reach a pull request, without a ticket, without a backlog, and without asking developers to change how they work.
The agent asks Semgrep and Semgrep answers. The MCP server exposes Semgrep's scanning capabilities as tools the agent can call directly.
Consistent scanning that your team can rely on. Hooks fire on every file write, ensuring a scan regardless of what the agent does.
Go company-wide, in an afternoon
Gain instant visibility into whose code is secure.
Guardian supports all major coding agents
Your organization's dedicated Claude Code security reviewer.
Download in Claude MarketplaceThe always-on security layer that Cursor was missing.
Download in Cursor MarketplaceYour organization's built-in security layer for Windsurf.
Semgrep Guardian + WindsurfGuardian for Regulated Industries
Keeps secrets, hardcoded credentials, and vulnerable patterns out of code the moment an agent writes it
Supports the pre-production review and secure-development expectations
Security teams set policy once and see every scan in one place, giving them an audit-ready record of what agents generated and what Guardian caught, without slowing developers down
Reviews agent-generated code at the point of creation, matching PCI DSS 4.0's pre-production code review requirement
Flags common coding vulnerabilities like injection and weak cryptography before they reach a pull request
Catches hardcoded secrets, insecure data handling, and vulnerable dependencies as code is generated, reducing the chance an agent opens a path to a data exposure
Centralized reporting helps demonstrate that safeguards are consistently applied across teams
Stops supply-chain risk at generation time, before a compromised action or typosquatted package reaches an operational pipeline
Directly addresses the single most common finding in real usage: unpinned third-party GitHub Actions and malicious or hallucinated packages
Vets the dependencies and CI actions that coding agents pull in without review
Single governance layer enforces consistent policy across every agent and IDE, so modernization does not outpace security review
Protects large volumes of personal and financial data across sprawling, legacy-heavy codebases
Fleet-wide visibility into what agents generate helps manage risk as AI adoption scales
Semgrep Guardian
Your developers are already generating code with AI. Talk to us about putting Guardian in front of it, so the malicious packages, hardcoded secrets, and vulnerable patterns get caught before they reach a pull request.