feat: EU AI Act compliance extensions for ADK agents - conformity credentials and audit trails

[ascender1729]

Context

ADK agents deployed in the EU will need EU AI Act compliance documentation (enforcement August 2, 2026). ADK already has native MCP and A2A support, making compliance integration straightforward.

Feature Request

1. Agent compliance credentials in Agent Cards: A2A Agent Cards could include a complianceCredentials field with W3C Verifiable Credentials proving EU AI Act conformity
2. MCP-based compliance tools: ADK's MCPToolset can consume compliance MCP servers for risk assessment, audit logging, and declaration generation
3. Compliance-aware workflow agents: SequentialAgent/ParallelAgent could include compliance checkpoints between steps

Integration Example

from google.adk import Agent
from google.adk.tools import MCPToolset

# Compliance via MCP (works with ADK's native MCP support)
compliance_tools = MCPToolset(
    server_params=StdioServerParameters(
        command="python", args=["-m", "attestix.main"]
    )
)

agent = Agent(
    model="gemini-2.0-flash",
    name="compliant-agent",
    tools=[compliance_tools],
)

Available Implementation

Open-source MCP server: pip install attestix

• 47 MCP tools, 13 EU AI Act articles automated
• W3C VC 1.1, W3C DID 1.0, UCAN v0.9.0
• Works with ADK's MCPToolset out of the box
• 291 tests, Apache 2.0

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