Last updated
March 16, 2026
MCP profile
Github ExpertVagabond Guardrails
AI Agent Guardrails MCP server - security layer
Developer ToolsPackageJavaScript/TypeScriptOpen SourceExternal
Visibility
Public
ByRegistry
About This MCP Server
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MCP server for AI agent security guardrails. Provides input validation, prompt injection detection, PII redaction, output filtering, policy enforcement, rate limiting, and comprehensive audit logging.
Capabilities
Prompt Injection Detection -- 12 regex patterns for jailbreak, DAN mode, system prompt overridePII Detection and Redaction -- SSN, credit card, email, phone, IP, API keys, AWS keys, JWT, passwords, private keys, connection stringsMalicious Code Blocking -- eval, exec, subprocess, child_process, shell injectionPolicy Engine -- Block sensitive paths, dangerous tools, unauthenticated destructive ops, URL allowlist, maintenance windowsRate Limiting -- Per-user sliding window (configurable requests/minute)Audit Logging -- Timestamped events with metrics, log rotation, external handler support
Why Use Github ExpertVagabond Guardrails?
- Prompt Injection Detection -- 12 regex patterns for jailbreak, DAN mode, system prompt override
- PII Detection and Redaction -- SSN, credit card, email, phone, IP, API keys, AWS keys, JWT, passwords, private keys, connection strings
- Malicious Code Blocking -- eval, exec, subprocess, child_process, shell injection
- Policy Engine -- Block sensitive paths, dangerous tools, unauthenticated destructive ops, URL allowlist, maintenance windows
- Rate Limiting -- Per-user sliding window (configurable requests/minute)
- Audit Logging -- Timestamped events with metrics, log rotation, external handler support
Specifications
Status
live
Industry
Developer Tools
Category
General
Server type
Package
Language
JavaScript/TypeScript
License
Open Source
Verified
Yes
Hosting
Hosting Options
- Package
API
Integrate this server into your application. Choose a connection method below.
1
Install
Install command
JavaScript/TypeScript
npm install2
Configure
Configuration
json
{
"mcpServers": {
"guardrails": {
"type": "stdio",
"command": "node",
"args": ["/path/to/guardrails-mcp-server/index.js"]
}
}
}Performance
Usage
Quick Reference
- Name
- Github ExpertVagabond Guardrails
- Function
- AI Agent Guardrails MCP server - security layer
- Transport
- Package
- Language
- JavaScript/TypeScript
- Install
- npm install
- Source
- External (Registry)
- License
- Open Source
Get started
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