Server cannot start with Claude Desktop

[alex-mextner]

Claude logs:

2025-07-04T16:10:21.866Z [language-server-df-studio-hitl2] [info] Initializing server... { metadata: undefined }
2025-07-04T16:10:21.888Z [language-server-df-studio-hitl2] [info] Using MCP server command: /Users/ultra/go/bin/mcp-language-server with args and path: {
  metadata: {
    args: [
      '--workspace',
      '/Users/ultra/work/v2v/web/hitl',
      '--lsp',
      'typescript-language-server',
      '--',
      '--stdio',
      [length]: 6
    ],
    paths: [
      '/usr/local/bin',
      '/opt/homebrew/bin',
      '/usr/bin',
      '/usr/bin',
      '/bin',
      '/usr/sbin',
      '/sbin',
      '/usr/local/bin',
      [length]: 8
    ]
  }
} %o
2025-07-04T16:10:21.889Z [language-server-df-studio-hitl2] [info] Server started and connected successfully { metadata: undefined }
2025-07-04T16:10:21.892Z [language-server-df-studio-hitl2] [info] Message from client: {"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"claude-ai","version":"0.1.0"}},"jsonrpc":"2.0","id":0} { metadata: undefined }
2025/07/04 18:10:21.907199 [INFO][core] MCP Language Server starting
2025/07/04 18:10:21.909658 [FATAL][core] LSP command not found: typescript-language-server
2025-07-04T16:10:21.910Z [language-server-df-studio-hitl2] [info] Server transport closed { metadata: undefined }
2025-07-04T16:10:21.911Z [language-server-df-studio-hitl2] [info] Client transport closed { metadata: undefined }
2025-07-04T16:10:21.911Z [language-server-df-studio-hitl2] [info] Server transport closed unexpectedly, this is likely due to the process exiting early. If you are developing this MCP server you can add output to stderr (i.e. `console.error('...')` in JavaScript, `print('...', file=sys.stderr)` in python) and it will appear in this log. { metadata: undefined }
2025-07-04T16:10:21.911Z [language-server-df-studio-hitl2] [error] Server disconnected. For troubleshooting guidance, please visit our [debugging documentation](https://modelcontextprotocol.io/docs/tools/debugging) { metadata: { context: 'connection', stack: undefined } }
2025-07-04T16:10:21.911Z [language-server-df-studio-hitl2] [info] Client transport closed { metadata: undefined }

CLI logs (looks okay):

~/xp ❯ mcp-language-server --workspace /Users/ultra/work/v2v/web/hitl --lsp typescript-language-server -- --stdio    
2025/07/04 18:04:59.654485 [INFO][core] MCP Language Server starting
2025/07/04 18:04:59.950835 [INFO][lsp] Initializing TypeScript language server with workspace: /Users/ultra/work/v2v/web/hitl
2025/07/04 18:04:59.950846 [INFO][lsp] Opening all TypeScript files in workspace: /Users/ultra/work/v2v/web/hitl
2025/07/04 18:05:00.072844 [INFO][lsp] Opened 564 TypeScript files
2025/07/04 18:05:00.074989 [INFO][watcher] Initialized gitignore matcher for /Users/ultra/work/v2v/web/hitl
2025/07/04 18:05:01.074265 [INFO][core] Successfully registered all MCP tools
2025/07/04 18:05:05.008804 [INFO][lsp] Received diagnostics for file:///Users/ultra/work/v2v/web/hitl/app/components/announcement-bar/announcement-bar.tsx: 0 items
2025/07/04 18:05:05.186577 [INFO][lsp] Received diagnostics for file:///Users/ultra/work/v2v/web/hitl/app/components/announcement-bar/announcement-bar.tsx: 0 items
2025/07/04 18:05:05.201759 [INFO][lsp] Received diagnostics for file:///Users/ultra/work/v2v/web/hitl/app/components/date-ago.tsx: 0 items
2025/07/04 18:05:05.202620 [INFO][lsp] Received diagnostics for file:///Users/ultra/work/v2v/web/hitl/app/components/date-ago.stories.tsx: 0 items
2025/07/04 18:05:05.278518 [INFO][lsp] Received diagnostics for file:///Users/ultra/work/v2v/web/hitl/app/components/date-ago.tsx: 0 items
2025/07/04 18:05:05.301700 [INFO][lsp] Received diagnostics for file:///Users/ultra/work/v2v/web/hitl/app/components/editor/ad-editor.tsx: 0 items
2025/07/04 18:05:05.301713 [INFO][lsp] Received diagnostics for file:///Users/ultra/work/v2v/web/hitl/app/components/diff/diff.tsx: 0 items