Is your feature request related to a problem? Please describe.

• Currently there seems to be no official MCP conformance test suite.
• There are some internal tests for different implementations, e.g. fastmcp but no official testsuite.
• It would be cool if we offer a automated (ci based) MCP conformance testsuite.
• Ideally the tests should refer to the chapters/requirements in the specification.

Describe the solution you'd like
We do not have to start a point zero because there are already:

• MCP Inspector / Explorer (reference client)
• internal testsuites of different MCP implementations e.g. fastmcp
  based on these testsuites, it could be possible to implement a official testsuite.

Describe alternatives you've considered
na

Additional context

• the MCP community can work together, using the existing testsuites and
• assemble a official MCP conformance testsuite

Possible test:

• Server startup
• Capability discovery
• Tool schema correctness
• Tool invocation round-trips
• Resource listing & fetching
• Prompt exposure
• JSON-RPC framing
• Error propagation
• Streaming responses
• Cancellation handling