await mcp.connect

[tmokmss]

Motivation and Context

We must await mcp.connect function to wait for conection to complete.

https://github.com/modelcontextprotocol/typescript-sdk/blob/784012946dbc28f69708061863da6733f91c6696/src/client/index.ts#L127

How Has This Been Tested?

I got errors without await in some mcp servers (e.g. fetch).

  | Traceback (most recent call last):
  |   File "/Users/m/.cache/uv/archive-v0/_oiyv-egAw4swx8quh7R3/lib/python3.12/site-packages/mcp/shared/session.py", line 338, in _receive_loop
  |     await self._received_request(responder)
  |   File "/Users/m/.cache/uv/archive-v0/_oiyv-egAw4swx8quh7R3/lib/python3.12/site-packages/mcp/server/session.py", line 148, in _received_request
  |     raise RuntimeError(
  | RuntimeError: Received request before initialization was complete
  +------------------------------------

Breaking Changes

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context