k8s-security

k8s-security is a skill for Claude Code, Codex from rohitg00/kubectl-mcp-server. It costs 38 tokens per session (1,147 once invoked), scanned A, original, MIT.

A guide for securing Kubernetes clusters, which are groups of machines running containerised applications. It covers permissions, access rules, secrets, network isolation, and policy checks.

In plain words
What is it for?
Use it to audit roles and bindings, review service-account access, manage secrets, inspect pod security settings, and check Kyverno or Gatekeeper policy compliance.
Why use it?
It helps identify excessive access and configuration risks by checking administrator bindings, secret permissions, network policies, and workload security settings.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to audit roles and bindings, review service-account access, manage secrets, inspect pod security settings, and check Kyverno or Gatekeeper policy compliance.

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Install with agentmods
npx agentmods add skills/rohitg00/kubectl-mcp-server/k8s-security
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add rohitg00/kubectl-mcp-server --skill k8s-security
Clone the repo
git clone --depth 1 https://github.com/rohitg00/kubectl-mcp-server

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for k8s-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/rohitg00/kubectl-mcp-server/k8s-security/github.svg)](https://agentmods.dev/skills/rohitg00/kubectl-mcp-server/k8s-security)
Your own site
<a href="https://agentmods.dev/skills/rohitg00/kubectl-mcp-server/k8s-security"><img src="https://agentmods.dev/badge/skills/rohitg00/kubectl-mcp-server/k8s-security/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.

agentmods 80×15 button for k8s-security

Your own site · 80×15
<a href="https://agentmods.dev/skills/rohitg00/kubectl-mcp-server/k8s-security"><img src="https://agentmods.dev/badge/skills/rohitg00/kubectl-mcp-server/k8s-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,147 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00038 $0.01147
Opus 5 $0.00019 $0.00574
Sonnet 5 $0.00008 $0.00229
Haiku 4.5 $0.00004 $0.00115

Measured 9d ago against content hash ed043317e7e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

k8s-security 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/audit-rbac.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

kubernetes-skills/claude/k8s-security/SKILL.md · 193 lines

How it starts

The opening of the file, as written. The whole thing — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kubernetes Security

Security auditing, RBAC management, and policy enforcement using kubectl-mcp-server tools.

When to Apply

Use this skill when:

  • User mentions: "security", "RBAC", "permissions", "policy", "audit", "secrets"
  • Operations: security review, permission check, policy enforcement
  • Keywords: "who can", "access control", "compliance", "vulnerable"

Priority Rules

Priority Rule Impact Tools
1 Check cluster-admin bindings first CRITICAL get_cluster_role_bindings
2 Audit secrets access permissions CRITICAL Review role rules
3 Verify network isolation HIGH get_network_policies
4 Check policy compliance HIGH kyverno_*, gatekeeper_*
5 Review pod security contexts MEDIUM describe_pod

Quick Reference

Task Tool Example
List roles get_roles get_roles(namespace)
Cluster roles get_cluster_roles get_cluster_roles()
Role bindings get_role_bindings get_role_bindings(namespace)
Service accounts get_service_accounts get_service_accounts(namespace)
Kyverno policies kyverno_clusterpolicies_list_tool kyverno_clusterpolicies_list_tool()

RBAC Auditing

List Roles and Bindings

get_roles(namespace)
get_cluster_roles()
get_role_bindings(namespace)
get_cluster_role_bindings()

Check Service Account Permissions

get_service_accounts(namespace)

Common RBAC Patterns

Pattern Risk Level Check
cluster-admin binding Critical get_cluster_role_bindings()
Wildcard verbs (*) High Review role rules
secrets access High Check get/list on secrets
pod/exec High Allows container access

See RBAC-PATTERNS.md for detailed patterns and remediation.

Policy Enforcement

Kyverno Policies

kyverno_policies_list_tool(namespace)
kyverno_clusterpolicies_list_tool()
kyverno_policy_get_tool(name, namespace)

Read the full file on GitHub · 193 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 9d ago First seen · 193 lines · 38 tokens per session scan A ed043317e7e1

Subscribe to this mod's changes

k8s-security is a skill published in the GitHub repository rohitg00/kubectl-mcp-server (956 stars, last pushed 5mo ago), licensed MIT. It adds 38 tokens to every session and 1,147 once invoked, about $0.0002 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.