k8s-node-troubleshooting SKILL.md skillA
k8s-node-troubleshooting from k8s-servant/k8s-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add k8s-servant/k8s-skills/k8s-node-troubleshooting@git:20261025.122bc9dPins git:20261025.122bc9d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- k8s-servant/k8s-skills
- Path
skills/k8s-node-troubleshooting/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261025.122bc9d, committed Oct 25, 2026
- First version recorded
- Oct 24, 2026
- Size
- 11,842 bytes
- Repository stars
- 35
- License
- Apache-2.0
Use when a Kubernetes node is unhealthy or pods will not go onto it: a node NotReady or Unknown, MemoryPressure, DiskPressure or PIDPressure, pods Evicted, pods Pending with "untolerated taint(s)", "Insufficient cpu" or "Insufficient memory" while the node looks idle, a node cordoned (SchedulingDisabled), or the cluster autoscaler not adding or removing nodes. Investigates with kubectl get, describe and events, and proposes fixes. Reads first and asks before changing anything.
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
# Kubernetes node troubleshooting Find out why a node is unhealthy, or why pods will not be scheduled onto it, and propose a fix. **Read first, ask before changing.** Run the investigation commands freely. Run a command under an "Ask first" line only after the user approves that exact command; if your credentials do not allow it, give it to the user to run. Never run a "Proposed fix"; hand it to the user. You see the node only through the Kubernetes API. Checks on the node itself (the kubelet, the container runtime, the disk) need someone with access to the machine, so they are always proposed fixes for a human. The commands use placeholders: `my-node`, `my-namespace`, `my-app` and `my-pod`. Replace them with the real names. Never read Secrets. If output contains passwords, tokens or keys, do not repeat them. ## When to use - `kubectl get nodes` shows a node `NotReady`, `Unknown` or `SchedulingDisabled`. - A node reports `MemoryPressure`, `DiskPressure` or `PIDPressure`, or pods were `Evicted`. - Pods stay `Pending` and the `FailedScheduling` event names taints, `Insufficient cpu` or `Insufficient memory`, or unschedulable nodes. …
Read the whole file at its exact version.
How to install
mdr add k8s-servant/k8s-skills/k8s-node-troubleshooting@sha256:9a1202e6447c88f9The line at the top of this page pins the label git:20261025.122bc9d, 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_crky23uqd4z3klgk)
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Versions
The registry has recorded 2 versions of this file, between Oct 24, 2026 and Oct 25, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261025.122bc9d latest | 2026-10-25 | 122bc9d | 11,842 B | A | view · diff |
| git:20261024.e4fd766 | 2026-10-24 | e4fd766 | 11,661 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 (11842 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
k8s-servant/k8s-skills · 35 stars · license Apache-2.0 · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_crky23uqd4z3klgk GET https://markdownregistry.com/api/v1/resolve?ref=k8s-servant/k8s-skills/k8s-node-troubleshooting GET https://markdownregistry.com/api/v1/blob/9a1202e6447c88f91b1f38e66d0c3aaa543134b311fc29527dacee489633b112
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.