Prioritize traffic, media, lists, and audience sources with an 80/20 lens.
SkillScore95Maintained
Automatic
◆Marketing & Content pack
Last verified 8/16/2026
What it changes
Passed 21 of 22 test cases with the skill, and 13 of 22 without it.
Without skill59%
With skill95%
Checks it passed that the model alone missed
The response contains the section header `## Economics First`.
The response includes the section header `## Traffic Inventory`.
The response includes the section header `## Expansion Sequence`.
and 9 more in the full report
9 fixed12 passed either way0 still failing1 broke
Pass-rate lift
+36 pp
Tokens
+5%
Agent turns
0%
Response time
-19%
Model gemini-3.6-flashMeasured 8/16/2026v121 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 9
Prompt
I am launching a $2,000/year B2B analytics plugin and feel overwhelmed trying to manage LinkedIn, search ads, cold email, and SEO all at once. Can you build me an 80/20 marketing plan? Please start by laying out my baseline financial numbers (offer price, margins, target CAC), give me a comparison grid evaluating potential acquisition sources on intent and effort, pick the single best channel I should master right now with a testing plan, and outline a step-by-step expansion roadmap for later.
What was checked, without and with the skill
Checked
Without skill
With skill
The response contains the top-level header `# 80/20 Traffic Strategy`.
Missed
Passed
The plan recommends mastering a single acquisition source before allocating resources to expand into secondary channels.
Passed
Passed
The strategy defines target metrics or financial constraints prior to recommending channel choices.
Passed
Passed
case-01 · 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.md102 linessingle file
80/20 Traffic Strategy
Use this skill to choose and sequence traffic sources by leverage, buyer fit,
and economic potential. It is based on 80/20 Sales and Marketing by Perry
Marshall.
Source Traceability
Primary source: 80/20 Sales and Marketing, chapters 4, 6, 10, and 11.
Chapter 4 emphasizes positioning and media mastery over low-leverage
prospecting.
Chapter 6 introduces the traffic, conversion, economics triangle and list
quality.
Chapter 10 covers media expansion after a funnel starts working.
Chapter 11 covers scaling and diversification after conversion proves out.
Workflow
1. State The Economic Constraint
Before recommending traffic, capture:
Offer price and margin.
Target customer value.
Allowable acquisition cost.
Sales cycle.
Conversion path.
Existing traffic source performance.
Think backwards from economics before adding traffic.
2. Inventory Traffic Sources
List owned, rented, paid, earned, and partner sources. For each, estimate: