Co Growth Copy Variants

Copy Variants

Variant messaging for experiment arms with controlled variable isolation.

Use This Skill When

• Generating copy variants for A/B test arms.
• Writing CTA alternatives for landing pages or onboarding.
• Adapting messaging tone for different user segments.
• Ensuring only one variable changes between variants.

Workflow

1. Confirm the experiment hypothesis and primary metric.
2. Identify the single variable to isolate (headline / CTA / value prop).
3. Generate control + treatment copy (minimum 2 variants).
4. Tag each variant with target segment and AARRR stage.
5. Validate variable isolation: only one element differs per pair.
6. Save variants to files.

Deliverables

• report.md: variant rationale and isolation analysis.
• results/copy-variants.md: all variants with tags.

Quality Gates

• Each variant pair differs by exactly one variable.
• Variants are tagged with target segment and AARRR stage.
• Tone matches the target segment's profile.
• An experiment hypothesis exists before variant creation.
• Variants are formatted for direct implementation.

If any gate fails: identify the issue, fix, and re-validate.

Gotchas

• Changing both headline and CTA simultaneously violates variable isolation — test results become unattributable.
• "Professional tone" is not specific enough. Define tone with examples (e.g., "formal, no contractions, data-driven").
• Copy variants without a linked experiment hypothesis are untestable. Require experiment-design output first.

Validation Loop

1. Generate copy variants
2. Check: single variable isolation, segment tags, linked hypothesis
3. If any check fails → revise variants
4. Proceed to experiment launch after approval