systems-administration SKILL.md skillA
systems-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/systems-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/systems-administration/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260916.e72e404, committed Sep 16, 2026
- First version recorded
- Aug 29, 2026
- Size
- 3,297 bytes
- Repository stars
- 2,543
- License
- MIT
Runs servers and corporate systems — patching, configuration baselines, change control, capacity, and the routine that prevents incidents. Use this to establish a patching cadence, standardize server configuration, plan a maintenance window, decide change control for infrastructure, or clean up systems that have drifted from any known state.
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
# Systems administration Well-run systems are boring. The work is in the routine that keeps them that way, and almost every serious incident traces back to a routine that was skipped. Cloud environment design belongs to `technology:cloud-infrastructure`; this is operating the systems the company runs on. ## Configuration baselines and drift Every system class needs a defined baseline: build, hardening, agents, logging, accounts. Systems built by hand from memory diverge immediately and cannot be reasoned about as a group. Drift is the real enemy. Detect it continuously and correct rather than document — a system that no longer matches its baseline is a system whose behavior under patching or failover is unknown. The strongest form is disposability: rebuild rather than repair. A system you can rebuild in an hour never accumulates the sediment of a decade of manual fixes. ## Patching as a cadence Set a regular, predictable window and hold it. Ad hoc patching means patching happens when someone worries, which is never in proportion to actual risk. Tier by exposure: internet-facing systems on the shortest cycle, then internal, then isolated. …
Read the whole file at its exact version.
How to install
mdr add cbrock84/headcount/systems-administration@sha256:a0ba395fba63285bThe 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_odzfci6j3if573so)
5 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 | 3,297 B | A | view · diff |
| git:20260829.2464776 | 2026-08-29 | 2464776 | 2,958 B | A | view · diff |
| git:20260829.3b7c308 | 2026-08-29 | 3b7c308 | 2,959 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 (3297 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_odzfci6j3if573so GET https://markdownregistry.com/api/v1/resolve?ref=cbrock84/headcount/systems-administration GET https://markdownregistry.com/api/v1/blob/a0ba395fba63285b33f81ea09b543a81bc905520c9571a629ca0aad39dfb768e
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.