Use when planning, executing, and logging nurture experiments and regression tests.
SkillScore100Maintained
Automatic
◆Marketing & Content pack
Last verified 8/23/2026
What it changes
Passed 22 of 22 test cases with the skill, and 19 of 22 without it.
Without skill86%
With skill100%
Checks it passed that the model alone missed
Recommends testing only one variable at a time against the control
Recommends creating an experiment brief detailing variables, baseline controls, and evaluation KPIs
Recommends a standardized evidence folder hierarchy structured by campaign, run date, and asset type
3 fixed19 passed either way0 still failing0 broke
Pass-rate lift
+14 pp
Tokens
+6%
Agent turns
0%
Response time
-16%
Model gemini-3.6-flashMeasured 8/23/2026v122 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 3
Prompt
We are starting a quarterly sprint testing five distinct nurture stream variations. What foundational documentation artifact should be created before building assets in the automation tool?
What was checked, without and with the skill
Checked
Without skill
With skill
Recommends creating an experiment brief detailing variables, baseline controls, and evaluation KPIs
Missed
Passed
case-17 · gemini-3.6-flash · 8/23/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md25 linessingle file
Nurture Testing & QA Skill
When to Use
Running experiments (subject lines, timing, offers, personalization) in nurture flows.
Performing regression tests before go-live or updates.