Shewhart
FreeNot checkedEnables AI agents to perform statistical process control calculations using validated, deterministic tools such as control charts, capability analysis, and tole
About
Enables AI agents to perform statistical process control calculations using validated, deterministic tools such as control charts, capability analysis, and tolerance intervals.
README
An MCP server that exposes shewhart, the statistical process control library for Python, as tools for AI agents.
The reasoning: agents asked about process data tend to generate their own statistics, and generated statistics fail silently. Calculation belongs in a deterministic, versioned, validated tool that the agent calls. The agent interprets; validated code calculates.
Status
In development. This release reserves the package name; the first working server ships shortly, with these tools:
| Tool | Purpose |
|---|---|
review |
one call: choose the right chart, check assumptions, return a structured verdict |
control_chart |
I-MR, Xbar-R/S, p/np/c/u, Laney, EWMA, CUSUM by alias |
capability |
Cp/Cpk/Pp/Ppk with confidence intervals, non-normal methods |
tolerance_interval |
normal (Howe k2) and nonparametric (Wilks) |
fit_baseline / evaluate_baseline |
freeze control limits, judge new data against them |
Every result carries provenance (library version, input hash, timestamp) and is validated against published reference values, including NIST-certified datasets, in CI.
License
MIT. Built by Bertan Ucar.
Install Shewhart in Claude Desktop, Claude Code & Cursor
unyly install shewhart-mcpInstalls into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.
First time? Get the CLI: curl -fsSL https://unyly.org/install | sh
Or configure manually
Run in your terminal:
claude mcp add shewhart-mcp -- uvx shewhart-mcpFAQ
Is Shewhart MCP free?
Yes, Shewhart MCP is free — one-click install via Unyly at no cost.
Does Shewhart need an API key?
No, Shewhart runs without API keys or environment variables.
Is Shewhart hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Shewhart in Claude Desktop, Claude Code or Cursor?
Open Shewhart on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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