Will MCP server support showing tools based on user identity/roles to mcp client?

[venkybirla]

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Discussion Topic

Will MCP server support showing tools based on user identity/roles to mcp client?
Lets say 2 users(user1 and user2) are connecting to same mcp server . user 1 and user 2 should get different set of tool list . For example - user 1 should get tool1 and tool2 as tool list while user 2 should get tool1 and tool2 as tool list.

[rsteinhauer-seeburger]

I'm currently also investigating how to solve this issue or if we use the server implementation incorrectly.

My current approach would probably be to fork and and extend the toolsListRequestHandler with a filter with some custom logic that can be provided from the outside.

java-sdk/mcp-core/src/main/java/io/modelcontextprotocol/server/McpStatelessAsyncServer.java

Line 386 in 12292ab

.map(McpStatelessServerFeatures.AsyncToolSpecification::tool)

My worst idea is it to just intercept the "response" and filter the tools that shouldn't be visible for the user.

[chemicL]

This is the subject of #578