k8s-security-policies

k8s-security-policies is a skill for Claude Code, Codex from Threat-Vector-Security/guardian-agent. It costs 0 tokens per session (1,729 once invoked), scanned A, a copy of k8s-security-policies, Apache-2.0.

A guide for securing Kubernetes clusters, which run containerized applications, with network rules, access permissions, workload security standards, and admission controls.

In plain words
What is it for?
Use it to configure NetworkPolicy, role-based access control, pod security standards, and admission controls for Kubernetes environments.
Why use it?
It helps limit which services can communicate, restrict what workloads may do, and give users only the access they need.

Skill for Claude CodeCodex

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

Good fit Use it to configure NetworkPolicy, role-based access control, pod security standards, and admission controls for Kubernetes environments.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/threat-vector-security/guardian-agent/k8s-security-policies
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 Threat-Vector-Security/guardian-agent --skill k8s-security-policies
Clone the repo
git clone --depth 1 https://github.com/Threat-Vector-Security/guardian-agent

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-policies

README.md
[![agentmods](https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/k8s-security-policies/github.svg)](https://agentmods.dev/skills/threat-vector-security/guardian-agent/k8s-security-policies)
Your own site
<a href="https://agentmods.dev/skills/threat-vector-security/guardian-agent/k8s-security-policies"><img src="https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/k8s-security-policies/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-policies

Your own site · 80×15
<a href="https://agentmods.dev/skills/threat-vector-security/guardian-agent/k8s-security-policies"><img src="https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/k8s-security-policies.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,729 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.
Origin 83% copy Near-identical to another mod 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 $0.00000 $0.01729
Opus 5 $0.00000 $0.00864
Sonnet 5 $0.00000 $0.00346
Haiku 4.5 $0.00000 $0.00173

Measured 12d ago against content hash c5f7c7ec5e73, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

k8s-security-policies 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.

Origin

This is a copy

83% identical to k8s-security-policies — 122 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/k8s-security-policies/SKILL.md · 343 lines

How it starts

The opening of the file, as written. The whole thing — 343 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kubernetes Security Policies

Comprehensive guide for implementing NetworkPolicy, PodSecurityPolicy, RBAC, and Pod Security Standards in Kubernetes.

Purpose

Implement defense-in-depth security for Kubernetes clusters using network policies, pod security standards, and RBAC.

When to Use This Skill

  • Implement network segmentation
  • Configure pod security standards
  • Set up RBAC for least-privilege access
  • Create security policies for compliance
  • Implement admission control
  • Secure multi-tenant clusters

Pod Security Standards

1. Privileged (Unrestricted)

apiVersion: v1
kind: Namespace
metadata:
  name: privileged-ns
  labels:
    pod-security.kubernetes.io/enforce: privileged
    pod-security.kubernetes.io/audit: privileged
    pod-security.kubernetes.io/warn: privileged

2. Baseline (Minimally restrictive)

apiVersion: v1
kind: Namespace
metadata:
  name: baseline-ns
  labels:
    pod-security.kubernetes.io/enforce: baseline
    pod-security.kubernetes.io/audit: baseline
    pod-security.kubernetes.io/warn: baseline

3. Restricted (Most restrictive)

apiVersion: v1
kind: Namespace
metadata:
  name: restricted-ns
  labels:
    pod-security.kubernetes.io/enforce: restricted
    pod-security.kubernetes.io/audit: restricted
    pod-security.kubernetes.io/warn: restricted

Network Policies

Default Deny All

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: default-deny-all
  namespace: production
spec:
  podSelector: {}
  policyTypes:
    - Ingress
    - Egress

Allow Frontend to Backend

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-frontend-to-backend
  namespace: production
spec:
  podSelector:
    matchLabels:
      app: backend
  policyTypes:
    - Ingress
  ingress:
    - from:
        - podSelector:
            matchLabels:
              app: frontend
      ports:
        - protocol: TCP
          port: 8080

Allow DNS

Read the full file on GitHub · 343 lines

Files

What ships with it

4 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. 12d ago First seen · 343 lines · 0 tokens per session scan A c5f7c7ec5e73

Subscribe to this mod's changes

k8s-security-policies is a skill published in the GitHub repository Threat-Vector-Security/guardian-agent (13 stars, last pushed 3d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 1,729 tokens. A static security scan graded it A with 0 findings. It is 83% identical to k8s-security-policies, differing in 122 lines, and is treated as a copy.

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