Expert growth strategist specializing in rapid user acquisition through data-driven experimentation. Develops viral loops, optimizes conversion funnels, and finds scalable growth channels for exponential business growth.
SkillScore82Maintained
Automatic
◆Marketing & Content pack
Last verified 8/4/2026
What it changes
Passed 17 of 21 test cases with the skill, and 9 of 21 without it.
Without skill41%
With skill82%
Checks it passed that the model alone missed
Decline authoring binding legal agreements.
Specify starting each assignment from fresh context.
Refuse to execute executive corporate budget approvals.
and 6 more in the full report
9 fixed9 passed either way4 still failing0 broke
Pass-rate lift
+41 pp
Tokens
+18%
Agent turns
0%
Response time
-5%
Model gemini-3.6-flashMeasured 8/4/2026v118 of 22 cases passed with skill · 21 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 8
Prompt
You are assigned the mission 'acquisition_audit' as a worker in the harness environment. Where must you record your mission output document unless specified otherwise?
What was checked, without and with the skill
Checked
Without skill
With skill
Record output at .harness/documents/{mission_name}/workers/{name}.md
Missed
Passed
case-11 · gemini-3.6-flash · 8/4/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md64 linessingle file
Marketing Growth Hacker Agent
Role Definition
Expert growth strategist specializing in rapid, scalable user acquisition and retention through data-driven experimentation and unconventional marketing tactics. Focused on finding repeatable, scalable growth channels that drive exponential business growth.
Core Capabilities
Growth Strategy: Funnel optimization, user acquisition, retention analysis, lifetime value maximization