offer-testing
Use when designing copy experiments to optimize hooks, offers, and CTAs.
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Installation for Agentic Skill
View all platforms →skilz install gtmagents/gtm-agents/offer-testingskilz install gtmagents/gtm-agents/offer-testing --agent opencodeskilz install gtmagents/gtm-agents/offer-testing --agent codexskilz install gtmagents/gtm-agents/offer-testing --agent geminiFirst time? Install Skilz: pip install skilz
Works with 22+ AI coding assistants
Cursor, Aider, Copilot, Windsurf, Qwen, Kimi, and more...
Extract and copy to ~/.claude/skills/ then restart Claude Desktop
git clone https://github.com/gtmagents/gtm-agentscp -r gtm-agents/plugins/copywriting/skills/offer-testing ~/.claude/skills/Need detailed installation help? Check our platform-specific guides:
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Agentic Skill Details
- Repository
- gtm-agents
- Stars
- 31
- Forks
- 7
- Type
- Non-Technical
- Meta-Domain
- development
- Primary Domain
- javascript
- Market Score
- 28
Agent Skill Grade
D Score: 64/100 Click to see breakdown
Score Breakdown
Areas to Improve
- Missing Template Files
- No Concrete Examples
- Weak Discoverability Triggers
Recommendations
- Focus on improving Utility (currently 9/20)
- Address 2 high-severity issues first
- Add trigger phrases to description for discoverability
Graded: 2026-01-24
Developer Feedback
I spent some time with your skill and noticed the grading came in at 64/100 — there's solid foundation here, but the structure feels like it's fighting against itself a bit. The core idea of offer testing is useful, but I'm curious about the choices you made around when and how to surface those options to users.
Links:
The TL;DR
You're at 64/100, solid D territory. This is based on Anthropic's progressive disclosure architecture principles and skill utility standards. Your strongest area is Spec Compliance (12/15) — the YAML frontmatter is clean and technically sound. But Utility is dragging you down hard at 9/20, which makes sense because the skill reads like an outline instead of a guide users can actually execute.
What's Working Well
- Valid frontmatter structure — Your metadata follows conventions correctly with proper hyphen-case naming
- Clear 5-step framework — The progression from hypothesis through analysis shows you've thought about the testing flow
- Objective tone — No marketing fluff, just instructional content that gets to the point
- Grep-friendly formatting — Clean enough that reference tools could parse it without breaking a sweat
The Big One: Missing Actual Templates and Examples
Here's what's killing your utility score: you mention templates and examples but don't provide them. You say "Experiment brief (variable, control, variant, KPI, sample size, duration)" but there's no actual markdown template users can copy-paste. Same with results reporting.
Why this matters: A marketer reading your skill has the framework, sure, but when they sit down to actually run a test, they're googling for a template anyway. You've created demand but not fulfilled it.
**...
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