Dynamic load or unload mcp tools #599

Is your feature request related to a problem? Please describe.
Depends on LLM context window size, too many mcp tools will hit the limitation.

Describe the solution you'd like
Provide api to dynamic register/unregister mcp tools, etc

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.