ubuntu-netplan SKILL.md skillA

ubuntu-netplan from air-gapped/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add air-gapped/skills/ubuntu-netplan@git:20261019.744413b

Pins git:20261019.744413b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
air-gapped/skills
Path
.claude/skills/ubuntu-netplan/SKILL.md
Versions recorded
6
Latest version
git:20261019.744413b, committed Oct 19, 2026
First version recorded
Jun 14, 2026
Size
10,140 bytes
Repository stars
6
License
MIT

Author, validate, and debug netplan network configuration (`/etc/netplan/*.yaml`) for Ubuntu Server LTS 24.04 and 26.04, focused on on-premise and air-gapped hosts — static addressing, bonds, bridges, VLANs, VRFs, routing/policy-routing, DNS, interface matching/renaming, and the systemd-networkd renderer (NetworkManager and desktop covered briefly). Also the shared `network:` substrate for the ubuntu-autoinstall and ubuntu-cloud-init skills, which both use netplan v2.

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

# ubuntu-netplan

Cloud-init network-config **v2 is netplan format**, and an autoinstall `network:`
block **is** netplan v2 — see **Boundaries** at the end.

## Authoring workflow

1. **Confirm target & renderer.** Server → `renderer: networkd` (the default).
   Desktop/Wi-Fi → `renderer: NetworkManager`. Check the running version with
   `dpkg -l netplan.io` (24.04 is 1.0 or 1.1.2 depending on updates, 26.04 is
   1.2 — `ra-overrides`/`advertised-mss` need 1.1+; see version notes).
2. **Pick the device type(s):** `ethernets`, `bonds`, `bridges`, `vlans`, `vrfs`,
   `tunnels`, `dummy-devices`, `virtual-ethernets`, `wifis`, `modems`. Stack them
   bottom-up: ethernets → bond → vlans-on-bond → bridges-on-bond/vlan.
3. **Write the YAML** under `/etc/netplan/`, choosing a filename that orders
   correctly (see precedence). Use 2-space indentation, **never tabs**.
4. **Validate** without applying: `netplan generate` (fails loudly on errors).
5. **Apply safely.** On a remote/SSH host use `netplan try` (auto-rollback), never
   a blind `netplan apply` — see "Apply safely".
6. **Verify.** Done only when `netplan status --diff-only` prints nothing, every
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add air-gapped/skills/ubuntu-netplan@sha256:2a6dd750c6999833

The line at the top of this page pins the label git:20261019.744413b, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_nzpcbd2pns33bf6y.svg)](https://markdownregistry.com/a/art_nzpcbd2pns33bf6y)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 6 versions of this file, between Jun 14, 2026 and Oct 19, 2026, about one every 25 days.

versioncommittedcommitsizeaudit
git:20261019.744413b latest2026-10-19 744413b 10,140 BA view · diff
git:20261019.d8ea5112026-10-19 d8ea511 10,615 BA view · diff
git:20261019.b4635282026-10-19 b463528 10,573 BA view · diff
git:20261019.1f4da432026-10-19 1f4da43 9,978 BA view · diff
git:20261019.aecfbeb2026-10-19 aecfbeb 9,693 BA view · diff
git:20260614.900b4d12026-06-14 900b4d1 9,342 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10140 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

GitHub

air-gapped/skills · 6 stars · license MIT · pushed 2026-11-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_nzpcbd2pns33bf6y
GET https://markdownregistry.com/api/v1/resolve?ref=air-gapped/skills/ubuntu-netplan
GET https://markdownregistry.com/api/v1/blob/2a6dd750c69998339a9ea8f29079ecc02b06df2aa6399e0d6b4e17bc4ee5a5d3

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.

More from air-gapped/skills

aiperf SKILL.md skill
air-gapped/skills · .claude/skills/aiperf/SKILL.md · NVIDIA AIPerf — vendor-neutral generative-AI inference benchmarking (genai-perf successor). `aiperf profile`…
git:20261019.9eca78f · audit A · 6 stars
airgap-vetting SKILL.md skill
air-gapped/skills · .claude/skills/airgap-vetting/SKILL.md · Vet an open-source product for air-gap readiness BEFORE adoption. Answers eight questions — telemetry…
git:20261027.4b5fb58 · audit A · 6 stars
analytical-troubleshooting SKILL.md skill
air-gapped/skills · .claude/skills/analytical-troubleshooting/SKILL.md · Structured live troubleshooting for deviation problems: something worked (or should work) and now doesn't, and the…
git:20261019.819b406 · audit A · 6 stars
ansible-idrac-9-10 SKILL.md skill
air-gapped/skills · .claude/skills/ansible-idrac-9-10/SKILL.md · Run and debug `dellemc.openmanage` Ansible playbooks against Dell PowerEdge **iDRAC 9** (14G–16G) and **iDRAC 10** (17G…
git:20261019.b3bbe99 · audit A · 6 stars
argo-cd-apps SKILL.md skill
air-gapped/skills · .claude/skills/argo-cd-apps/SKILL.md · Author and maintain Argo CD `Application` and `ApplicationSet` manifests as a GitOps consumer (publisher), targeting…
git:20261027.31fbcc7 · audit A · 6 stars
autoresearch SKILL.md skill
air-gapped/skills · .claude/skills/autoresearch/SKILL.md · Autonomous experiment loops that hill-climb a measurable metric — apply one change, measure, keep it only if the number…
git:20261027.75d87c7 · audit A · 6 stars
baml-expert SKILL.md skill
air-gapped/skills · .claude/skills/baml-expert/SKILL.md · BAML (Boundary ML) expert for projects defining LLM calls as typed functions in .baml files with a generated Python…
git:20261027.db2bb25 · audit A · 6 stars
ceph-performance SKILL.md skill
air-gapped/skills · .claude/skills/ceph-performance/SKILL.md · Tune and benchmark a healthy Ceph cluster, with Rook-on-Kubernetes specifics: mClock profiles and the NVMe…
git:20261027.28d2580 · audit A · 6 stars
ceph-s3 SKILL.md skill
air-gapped/skills · .claude/skills/ceph-s3/SKILL.md · Run Ceph RGW as an S3 endpoint under Rook (CephObjectStore, CephObjectStoreUser, ObjectBucketClaim, COSI…
git:20261027.61472c6 · audit A · 6 stars
ceph-troubleshooting SKILL.md skill
air-gapped/skills · .claude/skills/ceph-troubleshooting/SKILL.md · Diagnose and recover an unhealthy Ceph cluster, with Rook-on-Kubernetes specifics: slow or stuck recovery/backfill…
git:20261027.0ad34cc · audit A · 6 stars
chat-completions-api SKILL.md skill
air-gapped/skills · .claude/skills/chat-completions-api/SKILL.md · Reference for the OpenAI Chat Completions API (/v1/chat/completions) and legacy /v1/completions as the lingua-franca…
git:20261027.42f4242 · audit A · 6 stars
claude-code-ci-harness SKILL.md skill
air-gapped/skills · .claude/skills/claude-code-ci-harness/SKILL.md · Run Claude Code headlessly as an isolated CI harness against any Anthropic Messages-compatible endpoint (local engine…
git:20261019.25dcc92 · audit A · 6 stars

Every file in air-gapped/skills

Browse by kind, by grade A, or by owner.