Sixsigma

Six Sigma methodology reference — DMAIC process, statistical tools, control charts, and capability analysis. Use when running improvement projects, analyzing...

Security Scan

This is an instruction-only Six Sigma reference that prints local, static documentation via a bundled shell script; its requirements and behavior are coherent with its description.

Purpose & Capability

Name/description promise a Six Sigma reference; the skill bundles a small script that prints guides for DMAIC, charts, capability, tools, and examples. No unrelated credentials, binaries, or services are requested.

Instruction Scope

SKILL.md only instructs running the included scripts/script.sh subcommands. The script only emits static help text (heredocs) and does not read other files, environment variables, or make network calls. Minor note: SKILL.md documents a SIXSIGMA_DIR config variable, but the script does not use it.

Install Mechanism

No install spec — instruction-only with a small bundled script. Nothing is downloaded or written to disk by an installer step beyond the skill files themselves.

Credentials

The skill declares no required env vars, credentials, or config paths. The only config mentioned (SIXSIGMA_DIR) is informational and not required by the script.

Persistence & Privilege

always:false and user-invocable:true. The skill does not request elevated or persistent system privileges and does not modify other skills or agent-wide settings.

Assessment

This skill is coherent and appears safe: it only prints Six Sigma reference material from a local shell script. If you care about provenance, verify the GitHub source (bytesagain/ai-skills) before installing. Note the SKILL.md mentions a SIXSIGMA_DIR config value that the script does not use—there's no evidence the skill reads or writes your files or reaches out to the network. If you run untrusted skills generally, you can still run it in a sandbox or inspect scripts/script.sh yourself (it's short and plain-text).

Six Sigma — Six Sigma Methodology Reference

Quick-reference for DMAIC methodology, statistical tools, control charts, and process capability.

When to Use

• Running a DMAIC improvement project
• Analyzing process capability (Cp, Cpk, Pp, Ppk)
• Setting up control charts (Xbar-R, p-chart, c-chart)
• Performing root cause analysis (fishbone, 5 Why, FMEA)
• Preparing for Six Sigma Green/Black Belt certification

Commands

intro

scripts/script.sh intro

Six Sigma overview — philosophy, sigma levels, belt system, history.

dmaic

scripts/script.sh dmaic

DMAIC phases: Define, Measure, Analyze, Improve, Control.

statistics

scripts/script.sh statistics

Key statistical concepts: normal distribution, hypothesis testing, regression.

charts

scripts/script.sh charts

Control charts: Xbar-R, Xbar-S, p-chart, np-chart, c-chart, u-chart, I-MR.

capability

scripts/script.sh capability

Process capability: Cp, Cpk, Pp, Ppk, sigma level, DPMO.

tools

scripts/script.sh tools

Six Sigma tools: fishbone, 5 Why, FMEA, Pareto, DOE, MSA.

examples

scripts/script.sh examples

Example DMAIC project walkthroughs.

checklist

scripts/script.sh checklist

DMAIC phase gate review checklist.

help

scripts/script.sh help

version

scripts/script.sh version

Configuration

Variable	Description
SIXSIGMA_DIR	Data directory (default: ~/.sixsigma/)

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