[BUG] LSP plugins installed and enabled but "No LSP server available for file type: .js"

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

LSP plugins are installed and enabled (vtsls and typescript-lsp) but when using the LSP tool, Claude Code returns "No LSP server available for file type: .js"

Environment:

• Claude Code version: 2.0.76
• Platform: Windows 11
• Plugins installed: vtsls (claude-code-lsps), typescript-lsp (claude-plugins-official)

Verification done:

• vtsls binary is in PATH (where vtsls returns valid path)
• jsconfig.json exists in project root with proper configuration
• Both plugins show as enabled in claude plugin list

Steps to reproduce:

1. Install vtsls globally: npm install -g @vtsls/language-server
2. Enable the vtsls plugin in Claude Code
3. Open a project with a jsconfig.json
4. Try to use any LSP operation on a .js file

LSP call example:

LSP operation: documentSymbol
filePath: src/volt.js
line: 1
character: 1

Result: "No LSP server available for file type: .js"

What Should Happen?

The LSP tool should connect to the installed and enabled vtsls language server and return valid results for JavaScript files, such as document symbols, hover information, go-to-definition, etc.

Error Messages/Logs

Steps to Reproduce

1. Install vtsls globally: npm install -g @vtsls/language-server
2. Enable vtsls plugin in Claude Code: claude plugin enable vtsls
3. Verify installation: where vtsls (should return valid path)
4. Create a project with jsconfig.json:

``json
{
"compilerOptions": {
"target": "ES2020",
"module": "ESNext",
"allowJs": true
},
"include": ["src/**/*"]
}
``

1. Create a JS file in src/
2. Try any LSP operation via Claude Code on that JS file
3. Observe: "No LSP server available for file type: .js"

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.76 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Plugin installation output from claude plugin list:

claude-code-lsps
❯ ◉ vtsls user, v1.0.0

claude-plugins-official
  ◉ typescript-lsp user, v1.0.0

vtsls binary location:
C:\Users\...\AppData\Roaming\npm\vtsls

jsconfig.json contents:

{
  "compilerOptions": {
    "target": "ES2020",
    "module": "ESNext",
    "moduleResolution": "node",
    "checkJs": false,
    "allowJs": true,
    "strict": false,
    "noEmit": true,
    "baseUrl": ".",
    "paths": { "*": ["*"] }
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules"]
}

The issue appears to be that Claude Code doesn't recognize/connect to the LSP server even though the plugin is installed and enabled.