dns-doctor SKILL.md skillA
dns-doctor from jongio/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jongio/skills/dns-doctor@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jongio/skills
- Path
skills/dns-doctor/SKILL.md- Versions recorded
- 4
- Latest version
- v1.0.0, committed Oct 22, 2026
- First version recorded
- Aug 23, 2026
- Size
- 23,046 bytes
- Repository stars
- 18
- License
- MIT
Evidence-first DNS and domain health audit covering delegation, records, DNSSEC, CAA, website routing, TLS, CDN behavior, SPF, DKIM, DMARC, MTA-STS, TLS reporting, dangling aliases, TTLs, and zone hygiene. Produces verified findings, cached delta reports, an ordered remediation plan, and exact user-approved provider changes. USE FOR: dns-doctor, DNS audit, domain health check, diagnose DNS, DNS delta, fix DNS, update DNS records, apply DNS changes, website routing failure, email authentication…
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
# DNS Doctor Audit the effective public behavior of a domain from delegation through application and mail routing. Separate observed facts from inference, avoid false positives, and give the user exact verification steps for every fix. ## Safety Audits and change planning are read-only. Live provider changes are allowed only through the explicit workflow in [approved change management](references/change-management.md). - Never change DNS records, registrar settings, CDN configuration, certificates, redirects, or mail policy without showing the exact before and after state and receiving explicit user approval for that mutation. - Treat the supplied audit target as atomic. Before any lookup, validate the complete raw value as one DNS name. If validation fails, stop and request a clean hostname. Never sanitize, split, extract, or infer a hostname from rejected input. - After raw validation passes, convert internationalized names to IDNA A-label form and validate every derived hostname before use. - Pass hostnames as command arguments, never as interpolated shell syntax. - When the user asks for an example command, supplies evidence-only input, or …
Read the whole file at its exact version.
How to install
mdr add jongio/skills/dns-doctor@sha256:19a0643ed2e2316dThe line at the top of this page pins the label v1.0.0, 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_netl34zdcsvfhr3k)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Aug 23, 2026 and Oct 22, 2026, about one every 20 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-10-22 | 48a4819 | 23,046 B | A | view · diff |
| v1.0.0 | 2026-10-22 | 5c610e8 | 23,610 B | A | view · diff |
| git:20260826.56d883e | 2026-08-26 | 56d883e | 23,581 B | A | view · diff |
| git:20260823.855bf8d | 2026-08-23 | 855bf8d | 17,773 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 (23046 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
jongio/skills · 18 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_netl34zdcsvfhr3k GET https://markdownregistry.com/api/v1/resolve?ref=jongio/skills/dns-doctor GET https://markdownregistry.com/api/v1/blob/19a0643ed2e2316dab7a3ad048206fba2ab63cfb53affc83c97c502d63efa9f2
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.