gooseworks-ai/goose-skills · skills/brand/composites/messaging-ab-tester/SKILL.md

messaging-ab-tester skillA

messaging-ab-tester is agent-read markdown (skill) from gooseworks-ai/goose-skills: Generate 3-5 messaging variants for a value proposition, design structured A/B tests, and analyze results to determine which framing resonates most with ICP. Tests can run via LinkedIn organic posts, cold email subject line splits, or both. Pure reasoning for variant generation and analysis — the user deploys the tests through their own tools. Use when a team can't decide between messaging angles and needs data, not opinions..

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 gooseworks-ai/goose-skills/messaging-ab-tester@git:20260617.7fb319c
Exact content
mdr add gooseworks-ai/goose-skills/messaging-ab-tester@sha256:e7c3fefba6d42bdd

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_jtowilu67gocmsly.svg)](https://markdownregistry.com/a/art_jtowilu67gocmsly)

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Versions

versioncommittedcommitsizeaudit
git:20260617.7fb319c latest2026-06-17 7fb319c 9,363 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 (9363 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

gooseworks-ai/goose-skills · 1,215 stars · license MIT · pushed 2026-09-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jtowilu67gocmsly
GET https://markdownregistry.com/api/v1/resolve?ref=gooseworks-ai/goose-skills/messaging-ab-tester
GET https://markdownregistry.com/api/v1/blob/e7c3fefba6d42bdd57bf734dbaad3ba7a3ffcdb980aea6073ce408181775647f

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