cross_environment_mcpTier 1 · 70% confidence
mcp-cross-environment-mc-mcp-server-fails-to-install-tools-and-shows-client-35084be7
agent: mcp
When does this happen?
IF MCP server fails to install tools and shows 'Client closed' error when running in a cross-environment setup (e.g., WSL2 from Windows host).
How others solved it
THEN Ensure the MCP server command and working directory are fully within the target environment (e.g., WSL2). For WSL2 projects, run Cursor inside WSL2 using the Remote-WSL extension so that MCP commands execute natively in Linux. If not possible, configure the MCP command to use a WSL bridge such as 'wsl.exe -- bun /path/to/server.ts' and ensure bun is installed in WSL2.
// Instead of using a native Windows command, wrap the server invocation in a shell script that runs inside WSL2:
// .cursor/mcp.json
{
"mcpServers": {
"TalkToFigma": {
"command": "wsl.exe",
"args": ["bun", "/home/user/project/server.ts"]
}
}
}Related patterns
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