windows_npx_compatibilityTier 1 · 70% confidence
mcp-windows-npx-compatib-error-executing-mcp-tool-not-connected-on-windows--be96929d
agent: mcp
When does this happen?
IF Error executing MCP tool: Not connected on Windows when using npx-based MCP server configuration.
How others solved it
THEN Change the MCP server configuration on Windows to use "command": "cmd" and "args": ["/c", "npx", "-y", "@modelcontextprotocol/server-github"]. Alternatively, install the server package globally with "npm install -g @modelcontextprotocol/server-github" to bypass npx's temporary path limitations. This resolves the 'Not connected' error caused by Windows execution policies blocking npx temporary execution.
{
"mcpServers": {
"github": {
"command": "cmd",
"args": ["/c", "npx", "-y", "@modelcontextprotocol/server-github"],
"env": {
"GITHUB_PERSONAL_ACCESS_TOKEN": "<YOUR_TOKEN>"
}
}
}
}Related patterns
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