MCP 服务器

Agent Security MCP

Security scanning, prompt injection detection, secret leak detection, and agent permission auditing for AI agent workflows.

README

Agent Security MCP Server

Security scanning, prompt injection detection, secret leak detection, and agent permission auditing for AI agent workflows. Built on the Model Context Protocol (MCP).

Tools

Tool	Description
`scan_mcp_config`	Scan MCP server configurations for security issues (dangerous commands, exposed secrets, network exposure, container misconfigs)
`detect_prompt_injection`	Analyze text for prompt injection attempts across 7 attack categories with context-aware risk scoring
`validate_scope_contract`	Check if agent actions comply with scope contracts (tool allowlists, file access, boundary constraints)
`scan_secrets`	Detect leaked API keys, tokens, private keys, database URIs, and credentials in text or code
`audit_agent_permissions`	Audit agent configurations against role-based expectations and flag principle of least privilege violations
`generate_security_report`	Generate comprehensive security assessment reports with prioritized remediation plans
`detect_tool_poisoning`	Analyze MCP tool definitions for hidden instructions that could manipulate agent behavior (OWASP Agentic Top 10)

Resources

Resource	URI	Description
OWASP LLM Top 10	`security://owasp-llm-top10`	OWASP Top 10 for LLM Applications (2025)
MCP Security Checklist	`security://mcp-security-checklist`	Security checklist for MCP server deployments

Installation

cd agent-security-mcp
npm install

Usage

As a standalone server

npm start

In Claude Desktop / MCP client configuration

{
  "mcpServers": {
    "agent-security": {
      "command": "node",
      "args": ["/path/to/agent-security-mcp/src/index.js"]
    }
  }
}

With npx (after publishing)

{
  "mcpServers": {
    "agent-security": {
      "command": "npx",
      "args": ["@asl-throne/agent-security-mcp"]
    }
  }
}

Detection Coverage

Prompt Injection (7 categories, 20+ patterns)

Instruction Override -- "ignore previous instructions", "disregard all rules", "new instructions:"
Identity Manipulation -- "you are now", "pretend you are", "act as", DAN/jailbreak
System Prompt Extraction -- "repeat your system prompt", "show your instructions"
Data Exfiltration -- "send this to", "post to webhook", "email everything to"
Delimiter Attacks -- ```system, [INST], <|im_start|>system, XML tag injection
Encoded Injection -- Base64 payloads, unicode zero-width characters, hex escapes
Privilege Escalation -- "sudo mode", "disable safety", "bypass filters"

Secret Detection (25+ patterns)

AI Provider Keys -- OpenAI (sk-), Anthropic (sk-ant-)
Cloud Credentials -- AWS (AKIA*), GCP (AIza*), Azure connection strings
Source Control -- GitHub PATs (ghp_, github_pat_), OAuth tokens (gho_*)
Payment -- Stripe live/test keys (sk_live_, sk_test_)
Communication -- Slack tokens/webhooks, Telegram bot tokens
Database -- PostgreSQL, MongoDB, MySQL, Redis connection URIs
Cryptographic -- RSA/EC/OpenSSH private keys, generic PEM blocks
JWT -- JSON Web Tokens
Generic -- api_key=, secret=, password=, .env file patterns

Permission Audit (6 role profiles)

Researcher -- Read + search + web only
Analyst -- Read + search only
Developer -- Read + write + execute
Reviewer -- Read only, no network
Orchestrator -- Read + write + task spawning
Monitor -- Read only, no network, no write

Pricing

Plan	Price	Servers	Features
Free	$0	1 server	Single scan, basic report
Starter	$49/month	3 servers	Continuous scanning, weekly reports
Pro	$199/month	20 servers	Real-time alerts, CI/CD integration, Slack notifications
Enterprise	$799/month	Unlimited	Custom policies, EU AI Act compliance reporting, SSO, dedicated support