Passed 17 of 22 test cases with the skill, and 13 of 22 without it.
Without skill59%
With skill77%
Checks it passed that the model alone missed
Assigns the Retired role to novacloud-legacy.net
Includes HTTPS certificate expiration alert lead times
Prohibits serving registrar default ad pages on defensive domains
and 3 more in the full report
4 fixed13 passed either way5 still failing0 broke
Pass-rate lift
+18 pp
Tokens
+44%
Agent turns
0%
Response time
-19%
Model gemini-3.6-flashMeasured 8/20/2026v117 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 4 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 4
Prompt
We recently acquired three small brands and now manage 14 different domains across two registrars. We need a clean domain strategy document to get our web portfolio organized. Please produce a complete domain plan covering our domain inventory with assigned roles for each asset, canonical host choices, a full redirect map, baseline DNS and registrar security requirements, an annual renewal calendar, and the ongoing review schedule for our team.
What was checked, without and with the skill
Checked
Without skill
With skill
Includes CAA records within the baseline DNS standard record list
Passed
Passed
Includes HTTPS certificate expiration alert lead times
Missed
Passed
Includes a quarterly review schedule for revisiting the domain strategy
Missed
Passed
case-01 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md210 lines2 files
Domain Strategy
Decide how domains, subdomains, and DNS work across a portfolio. Stack-agnostic. Works for one site or one hundred.
When to use
Setting up DNS for a new site (apex vs www, primary vs aliases)
Choosing or switching registrars
Planning redirects across multiple domains (parked, retired, consolidated)
Deciding subdomain vs subfolder vs separate domain for a new product line
Consolidating multiple sites into one
Splitting one site into multiple
Setting up DNS for email, security records, third-party services
When NOT to use
Migrating content between platforms with URL changes (use content-migration)
Design and write email campaigns and sequences including onboarding flows, lifecycle campaigns, transactional emails, newsletters, broadcast sends, and launch and announcement emails. Use this skill whenever the user wants to write email copy, plan an email sequence, design an onboarding drip, or set up lifecycle email campaigns. Triggers on email sequence, drip campaign, onboarding email, lifecycle email, welcome email, transactional email, newsletter, email broadcast, launch email, announcemen