Master cold email, LinkedIn, and first-touch prospect outreach.
SkillScore68Maintained
Automatic
◆Sales & GTM pack
Last verified 8/23/2026
What it changes
Passed 15 of 22 test cases with the skill, and 14 of 22 without it.
Without skill64%
With skill68%
Checks it passed that the model alone missed
Recommends storing templates in a shared team library.
Applies progressive disclosure to avoid template fatigue.
Sets the target open rate threshold at minimum 30 percent.
and 2 more in the full report
3 fixed12 passed either way5 still failing2 broke
Pass-rate lift
+5 pp
Tokens
+2%
Agent turns
0%
Response time
-20%
Model gemini-3.6-flashMeasured 8/23/2026v115 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 want to evaluate whether our new cold prospecting email campaign is performing well or needs optimization. What specific numeric benchmarks should we measure for open rate and reply rate to decide if the campaign is successful?
What was checked, without and with the skill
Checked
Without skill
With skill
Sets the target open rate threshold at minimum 30 percent.
Missed
Passed
Sets the target reply rate threshold at minimum 10 percent.
Missed
Passed
case-08 · 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.md31 linessingle file
Cold Outreach Mastery
When to Use
Building outbound sequences for new personas or segments
Personalizing cold email / LinkedIn outreach at scale
Diagnosing low open or reply rates in existing sequences
Designing follow-up cadences for SDR/XDR or founder-led sales
Framework
Core Principles – pattern interruption, value before ask, authentic personalization, mobile-first formatting, single CTA.
SPARK Flow – Subject hook → Personalized opening → Agitate problem → Relevant value → Kick-off CTA.