offer-testing SKILL.md skillA
offer-testing from gtmagents/gtm-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add gtmagents/gtm-agents/offer-testing@git:20251119.8c446bfPins git:20251119.8c446bf in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- gtmagents/gtm-agents
- Path
plugins/copywriting/skills/offer-testing/SKILL.md- Versions recorded
- 1
- Latest version
- git:20251119.8c446bf, committed Nov 19, 2025
- Size
- 1,113 bytes
- Repository stars
- 436
- License
- Apache-2.0
Use when designing copy experiments to optimize hooks, offers, and CTAs.
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
# Offer Testing Playbooks Skill ## When to Use - Planning subject line/CTA/offer tests across email, ads, or landing pages. - Validating new positioning or pricing language. - Running copy refresh cycles for campaigns. ## Framework 1. **Hypothesis** – statement of expected lift + rationale. 2. **Variable Selection** – hook, CTA, body copy, offer framing, proof element. 3. **Segmentation** – define audience splits and holdouts. 4. **Metrics** – primary KPI + guardrails (opens, CTR, CVR, CPL, unsub, spam). 5. **Analysis** – statistical significance (chi-square, z-test) or Bayesian approach. ## Templates - Experiment brief (variable, control, variant, KPI, sample size, duration). - Results report (metric table, significance, insight, next steps). - Prioritization matrix (ICE/RICE scoring). ## Tips - Limit to one variable per test to isolate learnings. - Ensure minimum sample sizes per channel before declaring winners. - Log tests and learnings in a shared repository. ---
Read the whole file at its exact version.
How to install
mdr add gtmagents/gtm-agents/offer-testing@sha256:f1f98c00cfafe2f9The line at the top of this page pins the label git:20251119.8c446bf, 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.
[](https://markdownregistry.com/a/art_rwzorytqiwuhlmiy)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Nov 19, 2025.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1113 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
gtmagents/gtm-agents · 436 stars · license Apache-2.0 · pushed 2026-04-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rwzorytqiwuhlmiy GET https://markdownregistry.com/api/v1/resolve?ref=gtmagents/gtm-agents/offer-testing GET https://markdownregistry.com/api/v1/blob/f1f98c00cfafe2f93e4712c352b4a45e2a1d60e372dab6ecf947f1908944aa6d
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.