Support for the `_meta` in MCP inputs and outputs

[anirbanbasu]

Is your feature request related to a problem? Please describe.
Is it possible to support the specification and the display of the _meta tag in the inputs to and the outputs from a MCP server, respectively?

Describe the solution you'd like

• A mechanism to specify the _meta for a MCP call.
• A mechanism to parse the _meta from the output of a MCP call.

Describe alternatives you've considered
MCP clients, in Python, can show the full MCP content. Thus, parsing them from there is easy. However, this request is for this visual inspector to be able to specify (for inputs) and parse (for outputs) of the _meta tag.

Additional context
See specification details for _meta.

[anirbanbasu]

It appears that _meta is visible in both the inputs and the outputs but is there a way to specify/modify _meta before the MCP call?