Borrowing it
Nothing to install: this file belongs to gke-labs/kube-agents. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/gke-labs/kube-agents/main/.agents/skills/review-security-k8s-nodes/SKILL.mdgit clone --depth 1 https://github.com/gke-labs/kube-agentsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/gke-labs/kube-agents/review-security-k8s-nodes)<a href="https://agentmods.dev/skills/gke-labs/kube-agents/review-security-k8s-nodes"><img src="https://agentmods.dev/badge/skills/gke-labs/kube-agents/review-security-k8s-nodes/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/gke-labs/kube-agents/review-security-k8s-nodes"><img src="https://agentmods.dev/badge/skills/gke-labs/kube-agents/review-security-k8s-nodes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Privilege Escalation · line 10 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 11 Potential security issue detected. Manual review is recommended.Fix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
- low Privilege Escalation · line 6 Skill requests more permissions than appear necessary for its stated functionality. Review if elevated access is justified.Fix: Request only the minimum permissions required. Document why each permission is needed. Remove broad permissions like '*' or 'all'.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00025 | $0.00313 |
| Opus 5 | $0.00013 | $0.00156 |
| Sonnet 5 | $0.00005 | $0.00063 |
| Haiku 4.5 | $0.00003 | $0.00031 |
Grade A, and why
review-security-k8s-nodes scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Task
Review K8s manifests for node boundary violations allowing compromised nodes/pods to escalate privileges cluster-wide.
Checks
1. Credential & HostPath Abuse
- Kubelet Credential Theft: Flag
hostPathmounts to sensitive node directories (/etc/kubernetes,/var/lib/kubelet,kubeconfig). Recommend VAPs. - Runtime Socket Mounts: Flag
hostPathmounts to container runtime sockets (e.g.,/var/run/docker.sock,containerd.sock). Enables full node takeover.
2. RBAC & NodeRestriction Bypass
- Overprivileged Node Groups: Flag extra RBAC bindings for
system:nodesorsystem:node:<name>bypassingNodeRestriction. - Node Impersonation: Flag roles granting
impersonateonsystem:nodes. - Node Modification: Flag KSA roles granting node modification (
create,update,patch,deleteonnodes,nodes/status, etc.). Allows malicious relabeling/scheduling.
3. Lateral Pivot via Scheduling
- Malicious Scheduling: Flag broad
tolerations(e.g.,operator: Existswith no key) on untrusted workloads allowing them to schedule on sensitive nodes (e.g. control-plane).
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 20 lines · 25 tokens per session scan A 7363e81f095e
review-security-k8s-nodes is a skill published in the GitHub repository gke-labs/kube-agents (54 stars, last pushed today), licensed Apache-2.0. It adds 25 tokens to every session and 313 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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