email-diagnostics SKILL.md skillA
email-diagnostics from chunkydotdev/email-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add chunkydotdev/email-skills/email-diagnostics@git:20260330.a3bdc45Pins git:20260330.a3bdc45 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- chunkydotdev/email-skills
- Path
skills/diagnostics/email-diagnostics/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260330.a3bdc45, committed Mar 30, 2026
- First version recorded
- Mar 30, 2026
- Size
- 32,826 bytes
- Repository stars
- 7
- License
- MIT
Diagnose email problems and plan email infrastructure. Use when emails land in spam, bounce rates spike, deliverability drops, open rates decline, providers throttle sending, you need to set up email for a new product, or you're not sure which email skill to use.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Email Diagnostics 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. ## When to use this skill - Something is wrong with your email and you don't know where to start - Emails are landing in spam - Bounce rate or complaint rate is climbing - You got listed on a blocklist - Open rates are dropping - Provider is throttling or deferring your sends (421 errors) - You need to set up email infrastructure from scratch - You're migrating between email providers - You need to scale sending volume - An AI agent is sending email and something's going wrong - You need to choose between a traditional ESP and an agent-native inbox provider - You need to handle inbound email for the first time - You received a compliance complaint or data deletion request - You want to audit your current email health ## Related skills This skill references all other skills in this collection. Each diagnostic path tells you exactly which skills to load for the detailed guidance. --- ## Quick routing: find your situation | Your situation | Jump to | …
Read the whole file at its exact version.
How to install
mdr add chunkydotdev/email-skills/email-diagnostics@sha256:85479f5533bb2e2eThe line at the top of this page pins the label git:20260330.a3bdc45, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_t326g57jxksrm6ak)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Mar 30, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260330.a3bdc45 latest | 2026-03-30 | a3bdc45 | 32,826 B | A | view · diff |
| git:20260330.e5701e0 | 2026-03-30 | e5701e0 | 30,158 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (32826 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
chunkydotdev/email-skills · 7 stars · license MIT · pushed 2026-10-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_t326g57jxksrm6ak GET https://markdownregistry.com/api/v1/resolve?ref=chunkydotdev/email-skills/email-diagnostics GET https://markdownregistry.com/api/v1/blob/85479f5533bb2e2ed977ae3abaa63ffea086df3065bc1d932cc8e147f01bf855
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.