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Diagnose email problems and plan email infrastructure.
Passed 14 of 22 test cases with the skill, and 9 of 22 without it.
and 3 more in the full report
5 fixed9 passed either way8 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
Our IP was just listed on Spamhaus SBL, dropping our inbox delivery significantly. Our growth manager wants to submit a delisting request immediately before changing anything. What is the required first-hour protocol and sequence for handling a Spamhaus SBL emergency?
| Checked | Without skill | With skill |
|---|---|---|
| mandates fixing the root cause of the listing before requesting delisting | Passed | Passed |
| recommends pausing non-essential marketing and outreach sends during a blocklist listing | Passed | Passed |
| recommends re-warming by starting at 25% of normal sending volume with the most engaged segment after delisting | Missed | Passed |
The instructions your model reads when the skill loads.
The starting point for any email problem or project. This skill routes you to the right diagnostic steps and the right specialized skills - so you fix the actual cause, not the symptom you noticed first.
This skill references all other skills in this collection. Each diagnostic path tells you exactly which skills to load for the detailed guidance.
| Your situation | Jump to |
|---|---|
| Emails landing in spam | Spam diagnosis |
| Bounce rate spiking | Bounce diagnosis |
| Listed on a blocklist | Blocklist response |
| Open rates dropping | Engagement diagnosis |
| Getting throttled (421 errors) | Throttling diagnosis |
| Complaint rate rising | Complaint diagnosis |
| Setting up email from scratch | Greenfield setup |
| Migrating providers | Migration plan |
| Scaling send volume | Scale plan |
test cases passed, vs 9 / 22 without
Published skills whose descriptions closely match this one, with their headline benchmark lift.
More skills from the same source and nearby in the registry, with their headline benchmark lift.