Statistical Process Control and quality engineering for Claude Code. Powered by the Forge engine. Sponsored by Svend.
| Skill | Description |
|---|---|
/spc-tools:control-chart |
I-MR, X-bar/R, p, c, CUSUM, EWMA charts with Nelson rules |
/spc-tools:capability |
Cp, Cpk, Pp, Ppk, sigma level, DPMO, yield |
/spc-tools:gage-rr |
Measurement system analysis (crossed/nested) |
A background spc-spec skill loads the complete Forge API reference automatically when you're working on quality/manufacturing analysis.
| Package | Purpose | GitHub |
|---|---|---|
| forgespc | Control charts, capability, gage R&R, Bayesian SPC | ewolters/forgespc |
| forgestat | Statistical tests, regression, power analysis, reliability | ewolters/forgestat |
| forgeviz | Chart rendering (ChartSpec → JSON/SVG) | ewolters/forgeviz |
| forgedoe | Design of experiments (factorial, CCD, DSD) | ewolters/forgedoe |
| forgepbs | Process belief system (advanced SPC) | ewolters/forgepbs |
| forgesia | Causal inference graphs | ewolters/forgesia |
Dependencies auto-install on session start.
Svend is a hypothesis-driven decision science platform for manufacturing and quality professionals. Control charts, capability analysis, DOE, FMEA, root cause analysis, and more — built on the same Forge engine that powers this plugin.