SPARQ Figma MCP implements a secure embedded bridge architecture that eliminates external network exposure and provides enterprise-grade security for AI-assisted Figma design operations.

graph TB
    A[Cursor IDE MCP Client] --> B[SPARQ MCP Server]
    B --> C[Embedded Communication Bridge]
    C --> D[Figma Plugin via IPC]
    B --> E[Security Layer]
    E --> F[Input Validation]
    E --> G[Error Boundaries]
    E --> H[Audit Logging]
    
    subgraph "Zero Network Exposure"
        I[No External Ports]
        J[No WebSocket Servers]
        K[No Network Dependencies]
    end
    
    style B fill:#e8f5e8
    style C fill:#e1f5fe
    style E fill:#ffebee

• ✅ Zero Network Exposure: No external ports, WebSocket servers, or network dependencies
• ✅ Embedded IPC Communication: Secure inter-process communication channels
• ✅ Input Validation: Zod schema validation for all 40+ design tools
• ✅ Error Boundaries: Comprehensive error handling and safe failure modes
• ✅ Process Isolation: Single-process architecture with contained execution
• ✅ Audit Logging: Security event tracking and monitoring

• No External Ports: Eliminates port scanning vulnerabilities
• No WebSocket Servers: Removes network-based attack vectors
• Localhost-Only Operations: All communication occurs within local process boundaries

// All MCP tools use Zod validation
server.tool(
  "create_frame",
  "Creates a new frame in Figma",
  {
    x: z.number().describe("X position"),
    y: z.number().describe("Y position"),
    width: z.number().positive().describe("Frame width"),
    height: z.number().positive().describe("Frame height"),
    name: z.string().optional().describe("Frame name"),
  },
  async (params) => {
    // Input automatically validated before execution
    return await executeSecureCommand("create_frame", params);
  }
);

• Graceful Degradation: Safe failure modes that don't expose sensitive information
• Security Boundaries: Error containment to prevent information leakage
• Audit Trail: Security events logged for monitoring and analysis

• Single Process Architecture: Embedded communication eliminates multi-process vulnerabilities
• Resource Isolation: Contained execution environment with controlled resource access
• Secure Session Management: Session-based communication with proper lifecycle management

# Verify no external ports are listening
$suspiciousPorts = netstat -ano | Where-Object { $_ -match ":[3-4][0-9][0-9][0-9]" }
if ($suspiciousPorts.Count -gt 0) {
    Write-Error "🚨 Security violation: External ports detected"
}

# Confirm single process architecture
$processes = Get-Process "*sparq*" -ErrorAction SilentlyContinue
Write-Host "✅ SPARQ processes: $($processes.Count)"

# Run security test suite
bun test tests/unit/security

• Zero external network ports listening
• All inputs validated through Zod schemas
• Error boundaries implemented for all operations
• Security audit tests passing
• Process isolation confirmed
• Audit logging operational

• Code Review: All security-related changes require review
• Dependency Scanning: Regular security audits of npm dependencies
• Input Validation: Never trust user input, always validate through schemas
• Error Handling: Implement secure error boundaries and logging

• Environment Isolation: Use production-specific configurations
• Access Controls: Implement proper authentication and authorization
• Monitoring: Enable security event logging and monitoring
• Updates: Keep dependencies and runtime environments current

Architecture Security:    ✅ PASS (Zero Network Exposure)
Input Validation:         ✅ PASS (40+ Tools Validated)
Error Boundaries:         ✅ PASS (Comprehensive Coverage)
Process Isolation:        ✅ PASS (Single Process Design)
Audit Capabilities:       ✅ PASS (Security Event Logging)

• Network Security: No external ports detected
• Input Security: All tools validate inputs via Zod schemas
• Process Security: Single process architecture confirmed
• Error Security: Secure failure modes implemented
• Communication Security: IPC channels secured and isolated

{
  "security": {
    "validation": {
      "enabled": true,
      "strict": true,
      "schemas": "zod"
    },
    "communication": {
      "type": "embedded",
      "encryption": "ipc",
      "isolation": true
    },
    "logging": {
      "security_events": true,
      "audit_trail": true,
      "error_boundaries": true
    }
  }
}

# Monitor security status
Get-Process -Name "*sparq*" | Select-Object Id, Name, CPU, WorkingSet
netstat -ano | Where-Object { $_ -match "LISTENING" }

# Security audit
npm audit --audit-level moderate
bun test tests/unit/security --verbose

1. Immediate Assessment: Determine scope and impact
2. Containment: Isolate affected components
3. Investigation: Analyze security logs and audit trails
4. Remediation: Apply security patches and updates
5. Recovery: Restore secure operations
6. Post-Incident: Update security measures and documentation

For security issues, please:

1. DO NOT create public GitHub issues for security vulnerabilities
2. DO contact the maintainers privately through secure channels
3. DO provide detailed reproduction steps and environmental information
4. DO allow reasonable time for security patch development and testing

• Weekly: Security audit of dependencies (npm audit)
• Monthly: Security testing and validation
• Quarterly: Architecture security review
• Annually: Comprehensive security assessment

• Critical: Applied immediately upon discovery
• High: Applied within 48 hours
• Medium: Applied within weekly maintenance window
• Low: Applied during regular update cycles

SPARQ Figma MCP implements enterprise-grade security through zero network exposure, comprehensive input validation, secure error handling, and embedded communication architecture.

• Zero Attack Surface: No external network dependencies
• Input Security: 40+ tools with Zod validation
• Process Security: Single process embedded architecture
• Communication Security: Encrypted IPC channels
• Monitoring: Comprehensive security event logging

🔒 Security Verified: Enterprise-grade protection with zero network vulnerabilities.