Nelson MCP — LibreOffice runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 3 Nov 2026.
An MCP server inside LibreOffice: agents read and edit your open Writer and Calc documents.
What the code does
We read the source, 4 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
self.proc = subprocess.Popen(
exec(compile(check_expr, "<dep-check>", "exec"),
return os.path.join(ext_dir, "plugin", "modules", dir_name)
shell=True,
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
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Nelson MCP — LibreOffice — questions
Answers built from our own checks of this server.