lsp-mcp

VS Code extension that exposes language server features as MCP tools. It hooks into whatever language servers VS Code already has running — no configuration needed.

Install

git clone https://github.com/TheAllenChou/lsp-mcp.git
cd lsp-mcp
npm install
npm run package
code --install-extension lsp-mcp-1.0.0.vsix

After restarting VS Code, the extension registers as an MCP server definition provider, making its tools available to any MCP client connected to VS Code — including GitHub Copilot and Claude Code.

Available Tools

| Tool | Description | |-------------------------|----------------------------------------------------------| | lsp_definition | Go to the definition of a symbol at a given position. | | lsp_references | Find all references to a symbol at a given position. | | lsp_type_definition | Go to the type definition of a symbol. | | lsp_hover | Get hover/type information for a symbol. | | lsp_document_symbols | List all symbols in a file. | | lsp_workspace_symbols | Search for symbols across the workspace. | | lsp_diagnostics | Get errors and warnings for a file. | | lsp_completions | Get completion suggestions at a position. | | lsp_implementations | Find implementations of an interface or abstract symbol. |

All position-based tools use zero-based line and character numbers.