pls add proper documentation for mcp. I cant find any api docs that highlight all parameters, or code snippets for SSE, or the input schema

I want to use google adk/genai/a2a with a mcp that i deployed to docker.
I get the tools, but then the question emerges: "what kind of schema is this using?".
There are no api docs for mcp toolkit. I tried this with sse, but then pydantic throws an error because mcp toolset passes variables that pydantic cant work with, but theres also no error handling for this.
I tried to parse the tools manually and create a proper schema after i received them from the mcp. But then again i have no idea what kind of schema you are using besides docstrings.

## Please Provide
- the schema you are using (openai/anthropic/your own)
- api docs for mcp toolkit
- api docs for sse
- code snippets for sse
- error handling for mcp toolkit
- proper documentation for types module
- api docs for using mcp with a2a, especially with sse transport

## why?
i really want to work with google but the documentation drives me insane and i always have to dig into your code