This document outlines security considerations and best practices for the Multi-LLM application, with special attention to Model Context Protocol (MCP) security.

• Agents only access required tools
• Tools only access necessary MCPs
• MCPs only access authorized resources
• Regular permission audits

• Multiple security layers
• Redundant validations
• Fallback mechanisms
• Security monitoring

• All inputs validated
• All operations approved
• All access authenticated
• All actions logged

{
  "mcpServers": {
    "filesystem": {
      "disabled": false,
      "autoApprove": [],
      "allowedPaths": [
        "allowed/path/1",
        "allowed/path/2"
      ],
      "permissions": [
        "read",
        "write"
      ]
    }
  }
}

1. Agent requests MCP operation
2. System checks operation against permissions
3. User prompted if approval required
4. Operation executed or rejected
5. Action logged for audit

• Read: View resources
• Write: Modify resources
• Execute: Run commands
• Admin: Configure MCPs

• LLM API key management
• MCP access tokens
• Session management
• Token rotation

• Role-based access
• Tool permissions
• MCP operation limits
• Resource quotas

• Input sanitization
• Output validation
• Type checking
• Schema enforcement

• Sandboxed execution
• Memory limits
• Timeout controls
• Error boundaries

• Request validation
• Response sanitization
• Rate limiting
• Error handling

• Command whitelisting
• Argument sanitization
• Resource limits
• Output buffering

• Encryption at rest
• Secure backups
• Access controls
• Data lifecycle

• TLS encryption
• Secure protocols
• Certificate validation
• Connection limits

• Memory sanitization
• Secure computation
• Resource isolation
• Error handling

interface SecurityLog {
  timestamp: number;
  actor: string;
  action: string;
  resource: string;
  result: 'success' | 'failure';
  details: Record<string, unknown>;
}

• Real-time alerts
• Usage patterns
• Error rates
• Resource utilization

• Log retention
• Access records
• Change tracking
• Incident reports

• Security testing
• Code reviews
• Dependency scanning
• Regular updates

• Secure configuration
• Environment isolation
• Version control
• Backup strategy

• Access monitoring
• Performance tracking
• Error handling
• Incident response

• Security patches
• Configuration reviews
• Permission audits
• Documentation updates

• Automated monitoring
• Alert thresholds
• Pattern recognition
• User reports

• Impact assessment
• Root cause analysis
• Scope determination
• Risk evaluation

• Immediate mitigation
• System isolation
• Evidence collection
• Stakeholder notification

• System restoration
• Data verification
• Security hardening
• Process improvement

• Monitor access logs
• Check error rates
• Verify MCP health
• Review alerts

• Audit permissions
• Check configurations
• Update documentation
• Review incidents

• Security assessment
• Update dependencies
• Review policies
• Test recovery

• Penetration testing
• Policy review
• Training updates
• System audit