Changes made to the MCP tool registration service

[Koolsiddude]

Summary

This PR updates Agent Framework integration code to align with the latest Python API changes where chat message store abstractions were replaced by history providers and several import/parameter names were normalized.

Why this change

ChatMessageStoreProtocol is no longer available in newer Agent Framework releases, and some API parameter/import names have changed (including chat_client to client). Without this migration, imports and chat-history forwarding code can fail at runtime.

What changed

1) Import migration

• Replaced ChatMessageStoreProtocol import with BaseHistoryProvider.

2) Method signature migration

• Updated send_chat_history_from_store(...) to accept:
  • history_provider: BaseHistoryProvider
  • session_id: Optional[str] = None

3) Message retrieval migration

• Replaced old async store call:
  • await chat_message_store.list_messages()
• With new history-provider API:
  • history_provider.get_messages(session_id=session_id)

4) Validation/messages/docs alignment

• Updated input validation error text from chat_message_store to history_provider.
• Updated method docstring text and example to reflect history-provider usage.

5) Additional import/parameter rename alignment

• Updated other import/parameter usages to match current SDK naming.
• Aligned references for agent and message where required by updated signatures/types.
• Renamed chat_client references to client.

File changed

• libraries\microsoft-agents-a365-tooling-extensions-agentframework\microsoft_agents_a365\tooling\extensions\agentframework\services\mcp_tool_registration_service.py

Backward compatibility notes

• This change is source-compatible only for callers already using the new Agent Framework history-provider model.
• Any external callers still passing old chat-message-store objects must be updated to pass a BaseHistoryProvider and optional session_id.
• Any external callers still using older parameter names (for example chat_client) must be updated to the current names (for example client).

Validation performed

• Imported updated module successfully:
  • microsoft_agents_a365.tooling.extensions.agentframework.services.mcp_tool_registration_service

Risk assessment

• Low to medium risk.
• Scope is limited to one service method and related typing/docs.
• Main risk is external call sites outside this workspace still using old parameter names or type/shape.

Suggested reviewer checklist

• Confirm BaseHistoryProvider is the intended abstraction for current Agent Framework version.
• Confirm session_id propagation is correct for your session model.
• Confirm there are no external call sites still passing old store protocol instances.
• Confirm there are no external call sites still using old import/parameter names (agent, message, chat_client) where newer names/signatures are expected.
• Run end-to-end chat flow to verify chat-history forwarding behavior in MCP threat-protection path.

[Koolsiddude]

@microsoft-github-policy-service agree

[nikhilNava]

Update the dependency to the latest on the root *.toml file