Design email marketing traction tests from Traction for acquisition, engagement, retention, revenue, and referrals.
SkillScore77Maintained
Automatic
◆Marketing & Content pack
Last verified 8/16/2026
What it changes
Passed 17 of 22 test cases with the skill, and 7 of 22 without it.
Without skill32%
With skill77%
Checks it passed that the model alone missed
The email sequence length is kept short for rapid testing.
The sequence length is kept concise to allow rapid testing.
The plan specifies a customer quality check to filter signups.
and 25 more in the full report
13 fixed4 passed either way2 still failing3 broke
Pass-rate lift
+45 pp
Tokens
-28%
Agent turns
0%
Response time
-41%
Model gemini-3.6-flashMeasured 8/16/2026v117 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 13 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 13
Prompt
Our team wants to launch a 10-email sequence to convert freemium users of our cloud storage app to paid plans. We plan to spend time A/B testing 20 different subject lines before setting up conversion tracking. Design an email marketing experiment plan for this upgrade push, keeping in mind we want to move fast.
What was checked, without and with the skill
Checked
Without skill
With skill
The email sequence length is kept short for rapid testing.
Missed
Passed
The primary metric tracks paid plan upgrades rather than email open rates.
Passed
Passed
The audience and promise are defined prior to optimizing subject lines.
Passed
Passed
case-04 · gemini-3.6-flash · 8/16/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md61 linessingle file
Traction Email Marketing
Use this skill when email can help find, activate, retain, monetize, or refer
customers. The output should be a measurable email experiment, not just copy.
Source Traceability
Primary source: Traction, chapter 14 and the appendix. Authoring notes:
converted lines 1863-1996 and 3347-3348.
Email Jobs
Find new customers through sponsorships, newsletter placements, or lead
magnets.
Engage prospects with a course, onboarding sequence, or useful series.
Retain customers through lifecycle nudges and value reminders.
Increase revenue through timely upsell or conversion prompts.
Drive referrals through shareable offers or customer prompts.
Workflow
Choose one email job.
Define the list source or audience segment.
Write the promise for the sequence or sponsorship.
Map the conversion path.
Set deliverability, tracking, and unsubscribe safeguards.
Define success by qualified action, not open rate alone.
Output Format
# Email Traction Test
## Job
[Acquisition, engagement, retention, revenue, or referral.]
## Audience
- Source/segment:
- Why they care: