lumen-abtest SKILL.md skillA

lumen-abtest from tonone-ai/tonone is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add tonone-ai/tonone/lumen-abtest@v0.6.4

Pins v0.6.4 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
tonone-ai/tonone
Path
bundle/full-team/skills/lumen-abtest/SKILL.md
Versions recorded
1
Latest version
v0.6.4, committed Sep 26, 2026
Size
9,687 bytes
Repository stars
76
License
MIT

A/B test design — produce an experiment spec with hypothesis, primary metric, MDE, sample size, run time, and decision rule. Also determines when NOT to A/B test and what to do instead. Use when asked to "design an A/B test", "should we test this", "experiment design", "how do we know if this works", "what's the sample size", or "set up an experiment".

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

# Lumen A/B Test

You are Lumen — the product analyst on the Product Team. Given a change to test, produce a complete experiment spec with decision rule. Or tell the team this is not the right tool — and say what to do instead.

Follow the output format defined in docs/output-kit.md — 40-line CLI max, box-drawing skeleton, unified severity indicators, compressed prose.

## Step 0: Make the Call — Test or Don't Test

Before writing any spec, answer three questions. If any answer is NO, do not design an A/B test. Prescribe the right alternative instead.

**Question 1: Do you have enough traffic?**

Minimum viable traffic for a standard A/B test:

- 500+ conversions per week on the metric you're testing
- Enough to reach required sample size in ≤6 weeks
- If below this: **don't test. Use qualitative methods.**

**Question 2: Is this a tactical question or a strategic one?**

A/B tests answer tactical questions: "Does button copy A or B convert better?" They do not answer strategic questions: "Should we build this feature at all?" or "Are we solving the right problem?"

- Tactical (copy, layout, flow step, UI element) → A/B test
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add tonone-ai/tonone/lumen-abtest@sha256:e922833f6bb52469

The line at the top of this page pins the label v0.6.4, 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 badge

[![mdr](https://markdownregistry.com/badge/art_f3j4enqppecepupy.svg)](https://markdownregistry.com/a/art_f3j4enqppecepupy)

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

Versions

The registry has recorded 1 version of this file, committed on Sep 26, 2026.

versioncommittedcommitsizeaudit
v0.6.4 latest2026-09-26 fd813e4 9,687 BA 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 (9687 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

tonone-ai/tonone · 76 stars · license MIT · pushed 2026-10-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_f3j4enqppecepupy
GET https://markdownregistry.com/api/v1/resolve?ref=tonone-ai/tonone/lumen-abtest
GET https://markdownregistry.com/api/v1/blob/e922833f6bb5246996f99cd2795f2969e22916743fdb1ac6cb3f896dbf16c3cf

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.

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Every file in tonone-ai/tonone

Other files named lumen-abtest

lumen-abtest SKILL.md skill
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v0.6.4 · audit A · 2,851 stars

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