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Get Started Free →chunkydotdev/sender-reputation
Monitor and protect your email sender reputation.
Passed 18 of 22 test cases with the skill, and 17 of 22 without it.
and 1 more in the full report
2 fixed16 passed either way3 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
We are looking at our Google Postmaster Tools account for `marketing.example.com` to check our daily domain reputation graph label. Where in the dashboard can we find the High/Medium/Low rating scale for our domain?
| Checked | Without skill | With skill |
|---|---|---|
| Explain that Google retired High/Medium/Low reputation dashboard ratings in September 2025. | Missed | Passed |
| State that Postmaster Tools monitoring now focuses on compliance metrics like spam complaint rate. | Missed | Passed |
The instructions your model reads when the skill loads.
Understand how mailbox providers score your domain, monitor your reputation, and recover when it degrades.
domain-authentication - SPF, DKIM, DMARC setup (prerequisite for good reputation)email-warmup - ramping volume on new domains/IPs without damaging reputationbounce-handling - processing bounces that directly affect reputation signalssuppression-lists - managing the lists that protect you from repeat damagerate-limiting - volume controls that prevent reputation-damaging spikesMailbox providers maintain a score for every domain (and IP) that sends email to their users. This score determines whether your messages land in the inbox, the spam folder, or get rejected outright. The score is not a single number you can look up - each provider calculates its own, using its own signals and weights.
The core signals are the same everywhere:
| Signal | Weight | Threshold |
|---|---|---|
| Spam complaint rate | Highest | Under 0.1% (hard limit 0.3%) |
| Bounce rate | High | Under 2% (ideally under 1%) |
| Spam trap hits | High | Zero tolerance for pristine traps |
| Engagement (opens, replies, clicks) | High | Provider-specific, relative to your history |
| Volume patterns | Medium | Consistent, no sudden spikes |
| Authentication (SPF, DKIM, DMARC) | Medium | All three passing and aligned |
| List age and hygiene | Medium | No purchased/scraped lists |
| Content patterns | Lower | No spam-trigger phrases or deceptive content |
test cases passed, vs 17 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.