jeremylongshore/tons-of-skills-marketplace · plugins/ai-agency/tonone/skills/lumen-abtest/SKILL.md

lumen-abtest skillA

lumen-abtest is agent-read markdown (skill) from jeremylongshore/tons-of-skills-marketplace: 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"..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add jeremylongshore/tons-of-skills-marketplace/lumen-abtest@v0.6.4
Exact content
mdr add jeremylongshore/tons-of-skills-marketplace/lumen-abtest@sha256:7ef352cfa5c7f22b

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_wqplqdk5dxnjqqzi.svg)](https://markdownregistry.com/a/art_wqplqdk5dxnjqqzi)

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Versions

versioncommittedcommitsizeaudit
v0.6.4 latest2026-05-04 c538828 9,684 BA view · diff
v0.6.42026-05-01 38b9461 9,612 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (9684 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

jeremylongshore/tons-of-skills-marketplace · 2,771 stars · license MIT · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_wqplqdk5dxnjqqzi
GET https://markdownregistry.com/api/v1/resolve?ref=jeremylongshore/tons-of-skills-marketplace/lumen-abtest
GET https://markdownregistry.com/api/v1/blob/7ef352cfa5c7f22baa25fd7344261eb7936599cd25120ab6b17359b8fa8e46ac

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.