network-administration SKILL.md skillA
network-administration from cbrock84/headcount is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cbrock84/headcount/network-administration@git:20260916.e72e404Pins git:20260916.e72e404 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cbrock84/headcount
- Path
plugins/it-operations/skills/network-administration/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260916.e72e404, committed Sep 16, 2026
- First version recorded
- Aug 29, 2026
- Size
- 5,090 bytes
- Repository stars
- 2,543
- License
- MIT
Designs and operates the corporate network — segmentation, remote access, wireless, DNS and addressing, and diagnosing network problems. Use this to segment a network, set up or fix remote access, diagnose intermittent connectivity, plan addressing or DNS, or assess whether the network's trust assumptions still hold.
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
# Network administration The network is the substrate everything else assumes works. It gets attention when it fails and is otherwise expected to be invisible, which is why its design debts persist for years. ## Segment by trust, and mean it A flat network means one compromised laptop reaches the finance server. Segmentation is the highest- value structural control available and the most commonly deferred. Separate at minimum: user devices, servers, management interfaces, guest, and anything unmanaged — printers, cameras, building systems, contractor equipment. That last category is the recurring entry point, because it is rarely patched and rarely owned. Default deny between segments, and permit specific flows. Rules that accumulate without review become an allow-all with extra steps; review them on a cadence and remove what no longer has a reason. ## Remote access The perimeter stopped being a perimeter when the workforce and the workloads left it. Treat network location as weak evidence of trust: being on the corporate network should not by itself grant access to anything sensitive. …
Read the whole file at its exact version.
How to install
mdr add cbrock84/headcount/network-administration@sha256:bea8645a46018d45The line at the top of this page pins the label git:20260916.e72e404, 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_vyimwlv3ouarbqpe)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 29, 2026 and Sep 16, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260916.e72e404 latest | 2026-09-16 | e72e404 | 5,090 B | A | view · diff |
| git:20260830.8ec263e | 2026-08-30 | 8ec263e | 4,751 B | A | view · diff |
| git:20260829.3b7c308 | 2026-08-29 | 3b7c308 | 3,032 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 (5090 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
cbrock84/headcount · 2,543 stars · license MIT · pushed 2026-10-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vyimwlv3ouarbqpe GET https://markdownregistry.com/api/v1/resolve?ref=cbrock84/headcount/network-administration GET https://markdownregistry.com/api/v1/blob/bea8645a46018d45c244e0821772dffafe3be80679b66c4842540338b5b3b904
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.