StemLab — timing and loops for Shorts runs on your own machine — the client starts it, so there is no endpoint to ping. 2 836 installs a week from pypi. Last commit 5 Nov 2026.
Music and stem analysis, timing and loopable Shorts. https://kieransimkin.co.uk/
What the code does
We read the source, 2 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.
subprocess.run(["taskkill", "/PID", str(proc.pid), "/T", "/F"],
<script src="https://cdn.socket.io/4.8.1/socket.io.min.js"></script>
files = sorted(p for p in origin.rglob('*') if p.is_file()) if origin.is_dir() else [origin]
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.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add stemlab -e 'STEMLAB_CODEX_WORKSPACE=<STEMLAB_CODEX_WORKSPACE>' -- uvx danceflow-stemlab{
"mcpServers": {
"stemlab": {
"command": "uvx",
"args": [
"danceflow-stemlab"
],
"env": {
"STEMLAB_CODEX_WORKSPACE": "<STEMLAB_CODEX_WORKSPACE>"
}
}
}
}[mcp_servers.stemlab]
command = "uvx"
args = ["danceflow-stemlab"]
env = { STEMLAB_CODEX_WORKSPACE = "<STEMLAB_CODEX_WORKSPACE>" }{
"mcpServers": {
"stemlab": {
"command": "uvx",
"args": [
"danceflow-stemlab"
],
"env": {
"STEMLAB_CODEX_WORKSPACE": "<STEMLAB_CODEX_WORKSPACE>"
}
}
}
}{
"servers": {
"stemlab": {
"type": "stdio",
"command": "uvx",
"args": [
"danceflow-stemlab"
],
"env": {
"STEMLAB_CODEX_WORKSPACE": "<STEMLAB_CODEX_WORKSPACE>"
}
}
}
}Put your own value in place of
<STEMLAB_CODEX_WORKSPACE> (Absolute, existing local directory containing authorised audio and results. Never use a filesystem root).
The author’s registry entry marks it as required.
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StemLab — timing and loops for Shorts — questions
Answers built from our own checks of this server.