cclsp MCP Server: Setup for Claude Code, Cursor and Other Apps

• Jumps to where a function or class is defined

  Finds where a named symbol is defined in a file. You give a name and optionally its kind, so the assistant does not have to guess line and column numbers.

  Try: “Where is parseConfig defined in src/config.ts?”

  Files · find_definition

• Finds every use of a symbol in the project

  Lists all places a symbol is used across the workspace, with or without its declaration.

  Try: “Find every place that calls sendEmail.”

  Files · find_references

• Finds the code that implements an interface

  Returns the locations that implement an interface or abstract method.

  Try: “Which classes implement the Storage interface?”

  Files · find_implementation

• Searches symbols by name across the project

  Searches every file in the workspace for symbols that match a name.

  Try: “Find all symbols named Router.”

  Files · find_workspace_symbols

• Shows the type and docs for a symbol

  Returns the documentation and type information the language server shows when you hover on a symbol at a given position.

  Try: “What type does the value on line 42 of api.ts have?”

  Files · get_hover

• Lists errors and warnings in a file

  Returns the errors, warnings and hints the language server reports for one file.

  Try: “Are there any type errors in src/server.ts?”

  Files · get_diagnostics

• Lists the functions that call a function

  Finds every function or method that calls the one at a position. It needs prepare_call_hierarchy first.

  Try: “Who calls handleRequest?”

  Files · get_incoming_calls

• Lists the functions a function calls

  Finds every function or method that the one at a position calls. It needs prepare_call_hierarchy first.

  Try: “What does handleRequest call?”

  Files · get_outgoing_calls

• Renames a symbol across all files

  Renames a symbol by name and applies the change to every affected file by default. It saves a .bak copy of each file first. Set dry run to preview. If several symbols match, it returns the candidates instead.

  Try: “Rename getUser to fetchUser everywhere, but preview first.”

  Write · rename_symbol

• Renames the symbol at an exact position

  Renames the symbol at a line and character you give, for when a name matches several symbols. It applies the change by default, and dry run previews it.

  Try: “Rename the symbol at line 12, column 5 of utils.ts to total.”

  Write · rename_symbol_strict

• Restarts the language servers

  Restarts the language servers for chosen file types, or all of them. Use it when answers look stale.

  Try: “Restart the TypeScript language server.”

  Runs code · restart_server

• Used by the assistant behind the scenes

  Marks a function so you can trace its calls

  Gets the call-hierarchy item at a position. Run it first, then ask for incoming or outgoing calls.

  Try: “Prepare the call tree for handleRequest.”

  Files · prepare_call_hierarchy

Watch out for

• Renames edit your files by default

  Both rename tools change every affected file unless dry run is set. They save .bak copies, so check your version control before approving. github.com

• It starts programs from your config file

  The config lists commands for language servers, and cclsp runs them. Only use a config you wrote or reviewed. github.com

• Restart tool stops and restarts servers

  It restarts language servers you pick, or all of them. It does not touch your files. github.com

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