I haven't come across a case where it has used the LSP yet.

Opus 4.5 is fairly consistent in running QA at proper times. Lint checks and all are already incorporated into a standard & native processes outside of IDE. I think lookup can be useful when definitions are hidden deep in hard to reach places on my disk... hasn't been a problem though the agent usually finds what it needs.

Anyway, here is what it stated it could do:

    > Do you have access to an lsp tool?

     Yes, I have an LSP tool with these operations:

    - goToDefinition - Find where a symbol is defined
    - findReferences - Find all references to a symbol
    - hover - Get documentation/type info for a symbol
    - documentSymbol - Get all symbols in a file
    - workspaceSymbol - Search for symbols across the workspace
    - goToImplementation - Find implementations of an interface/abstract method
    - prepareCallHierarchy - Get call hierarchy item at a position
    - incomingCalls - Find what calls a function
    - outgoingCalls - Find what a function calls