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llmx/llmx-rs/stdio-to-uds
Sebastian Krüger c493ea1347 Phase 5: Configuration & Documentation
Updated all documentation and configuration files:

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Files changed: 51 files (559 insertions, 559 deletions)

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-11 14:45:40 +01:00
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llmx-stdio-to-uds

Traditionally, there are two transport mechanisms for an MCP server: stdio and HTTP.

This crate helps enable a third, which is UNIX domain socket, because it has the advantages that:

  • The UDS can be attached to long-running process, like an HTTP server.
  • The UDS can leverage UNIX file permissions to restrict access.

To that end, this crate provides an adapter between a UDS and stdio. The idea is that someone could start an MCP server that communicates over /tmp/mcp.sock. Then the user could specify this on the fly like so:

llmx --config mcp_servers.example={command="llmx-stdio-to-uds",args=["/tmp/mcp.sock"]}

Unfortunately, the Rust standard library does not provide support for UNIX domain sockets on Windows today even though support was added in October 2018 in Windows 10:

https://github.com/rust-lang/rust/issues/56533

As a workaround, this crate leverages https://crates.io/crates/uds_windows as a dependency on Windows.