# LibTmux.Mcp.EnvironmentEntry

- **Module:** LibTmux.Mcp
- **Package:** LibTmux.Mcp
- **Language:** .NET
- **Kind:** struct
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/320dc64f4b8b7815842471327a5e6b84a1499bf8/src/LibTmux.Mcp/Tools/ReadTools.Inspect.cs#L217
- **Page:** https://libtmux.org/en/dotnet/latest/mcp/reference/libtmux-mcp-environmententry/

One variable in tmux's environment.

The tmux server environment is server-wide and outlives every session on
the socket, so it is where exported API keys accumulate. A listing answers
<see cref="HasValue" /> rather than values, and a value asked for by name
is still withheld when the name reads as a credential.