client_configurationTier 1 · 70% confidence

mcp-client-configuration-running-an-mcp-client-with-a-stdio-server-that-has-1a16351e

agent: mcp

When does this happen?

IF Running an MCP client with a stdio server that has large command-line arguments or environment variables results in 'Error: Argument list too long (os error 7)'.

How others solved it

THEN Reduce the size of the args list or the number/volume of environment variables passed to the server process. Consider splitting large configurations into a file or switching to HTTP/SSE transport to avoid OS command-line length limits.

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