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six-sigma-challenge SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

six-sigma-challenge from stempeck/agentfactory is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add stempeck/agentfactory/six-sigma-challenge@git:20260628.34d8187

Pins git:20260628.34d8187 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: stempeck/agentfactory
Path: .claude/skills/six-sigma-challenge/SKILL.md
Versions recorded: 1
Latest version: git:20260628.34d8187, committed Jun 28, 2026
Size: 8,059 bytes
Repository stars: 3
License: AGPL-3.0

Challenges the quality of any completed review or assessment to determine what would achieve six-sigma (99.9999%) quality outcome. Works with scored reviews (X/10), qualitative reviews (PASS/FAIL), or unstructured assessments. Identifies gaps, independently discovers missed issues, stress-tests each proposed improvement for feasibility including logical impossibilities, and appends a "Six-Sigma Caveats" section. Use when a review is less than perfect, when the user asks…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Six-Sigma Challenge

Challenge any quality assessment to find the gap between current outcome and perfection.

## Inputs

| Input | Required | Source |
|-------|----------|--------|
| Review file | Yes | First argument, or `todos/ultra-implement/blind_review.md` |
| Target document | Yes | Second argument, or auto-detected (see below) |

**Invocation**: `/six-sigma-challenge <review-file> <target-document>`
**Default**: `/six-sigma-challenge` (uses ultra-implement defaults)

**Auto-detection for target document** (when no second argument):
1. Read `todos/ultra-implement/investigation_report.md` and extract the `Problem File:` path
2. If that file exists, use it as the target document
3. Fallback: `todos/ultra-implement/COMPLETION.md`

This ensures the caveats append to the original problem file regardless of what `/ultra-implement` was invoked with.

## Phase 1: Extract Quality Gaps

Read the review file. Identify every area where the outcome falls short of perfection.

**For scored reviews** (X/10 criteria): Record each criterion below 10/10, the deficit, and the reviewer's reasoning. Rank by deficit size.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add stempeck/agentfactory/six-sigma-challenge@sha256:33eadc246b0c0d08

The line at the top of this page pins the label git:20260628.34d8187, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_tcyzfl2svxj4rlsy.svg)](https://markdownregistry.com/a/art_tcyzfl2svxj4rlsy)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Jun 28, 2026.

version	committed	commit	size	audit
git:20260628.34d8187 latest	2026-06-28	34d8187	8,059 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (8059 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

stempeck/agentfactory · 3 stars · license AGPL-3.0 · pushed 2026-11-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_tcyzfl2svxj4rlsy
GET https://markdownregistry.com/api/v1/resolve?ref=stempeck/agentfactory/six-sigma-challenge
GET https://markdownregistry.com/api/v1/blob/33eadc246b0c0d08b72f1e47baa070abff1e6f25d3ed09da42d8f3b2d931953f

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.