feat: EU AI Act compliance plugin for agent risk assessment and audit trail generation

[ascender1729]

Summary

Enterprise Semantic Kernel deployments in the EU will need EU AI Act compliance (enforcement August 2, 2026). A compliance plugin would enable:

1. Agent identity via W3C DIDs attached to each AI service
2. Risk classification metadata on kernel functions and plugins
3. Conformity assessment tracking (Article 43)
4. Hash-chained audit trails for all kernel invocations (Article 12)
5. Annex V Declaration of Conformity generation
6. Compliance status as verifiable credentials (W3C VC format)

Proposed Architecture

Semantic Kernel already supports MCP via its connector system. A compliance MCP server would integrate as a plugin:

// Register compliance MCP server as a plugin
var compliancePlugin = kernel.ImportMcpServer("attestix", 
    new McpServerConfig { Command = "attestix-mcp" });

// Before kernel invocation, check compliance
var status = await compliancePlugin.InvokeAsync("get_compliance_status", 
    new { agent_id = agentId });

The MCP integration means zero changes to existing kernel code. The compliance layer wraps around existing invocations.

Existing Implementation

Available as open-source MCP server: pip install attestix

• 47 MCP tools, 13 EU AI Act articles, W3C VC 1.1, Ed25519 signatures
• Semantic Kernel has native MCP support (Python, .NET, Java)
• 291 tests, Apache 2.0

GitHub: https://github.com/VibeTensor/attestix
Docs: https://attestix.io/docs