mcp.server.serverFromEnvironment

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mcp.server.serverFromEnvironment ( environment : : Readonly<Record<string, string | undefined>> = process.env ) → Server function [source] ¶ function [source] ¶ mcp.server.serverFromEnvironment

The tmux server this process was pointed at.

An MCP client launches this with an environment and a command line, and nothing else, so the environment is the only place a socket can come from. The library itself never reads these — a library that picks up ambient configuration is a library that surprises its caller — which is why the reading happens out here, at the edge that has a process to belong to.

Discussed in TypeScript MCP API