k8s-design-validation

k8s-design-validation is a skill for Claude Code, Codex from paruff/uFawkesAI. It costs 31 tokens per session (570 once invoked), scanned A, original, MIT.

A review aid for Kubernetes, the system used to run containerised applications, that checks resource, deployment, network, and secret decisions.

In plain words
What is it for?
Use it to review design and architecture files and produce a Kubernetes design check covering scaling, replicas, storage, networking, DNS, and secret rotation.
Why use it?
It exposes gaps in a Kubernetes design before deployment, such as missing CPU or memory settings, unclear traffic rules, or unsafe secret handling.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; installed under .agents/ (shared by several agents); mentions Codex.

Good fit Use it to review design and architecture files and produce a Kubernetes design check covering scaling, replicas, storage, networking, DNS, and secret rotation.

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Install with agentmods
npx agentmods add skills/paruff/ufawkesai/k8s-design-validation
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 paruff/uFawkesAI --skill k8s-design-validation
Clone the repo
git clone --depth 1 https://github.com/paruff/uFawkesAI

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-design-validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/paruff/ufawkesai/k8s-design-validation/github.svg)](https://agentmods.dev/skills/paruff/ufawkesai/k8s-design-validation)
Your own site
<a href="https://agentmods.dev/skills/paruff/ufawkesai/k8s-design-validation"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/k8s-design-validation/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-design-validation

Your own site · 80×15
<a href="https://agentmods.dev/skills/paruff/ufawkesai/k8s-design-validation"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/k8s-design-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 570 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 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 $0.00031 $0.00570
Opus 5 $0.00015 $0.00285
Sonnet 5 $0.00006 $0.00114
Haiku 4.5 $0.00003 $0.00057

Measured 10d ago against content hash f9809fe5632c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

k8s-design-validation 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 10d 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.

.agents/skills/design/k8s-design-validation/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Kubernetes Design Validation

Load trigger: "load k8s-design-validation skill" > DORA: Cap 1 (AI Policy) Token cost: Low

Purpose

Validate Kubernetes-related design decisions.

Responsibilities

  • Validate resource requirements in design
  • Validate deployment patterns
  • Validate network design
  • Validate secret usage approach

Inputs

  • design.md
  • architecture.json

Outputs

  • k8s-design.json

Validation Rules

Resource Design

  • CPU requests/limits specified per component
  • Memory requests/limits specified per component
  • Storage requirements specified (if applicable)
  • Horizontal scaling approach defined

Deployment Patterns

  • Deployment strategy chosen (RollingUpdate, Recreate)
  • Replica count specified
  • Pod disruption budgets defined (if needed)
  • Init containers defined (if needed)

Network Design

  • Service types defined (ClusterIP, NodePort, LoadBalancer)
  • Ingress rules defined
  • Network policies defined
  • DNS strategy defined

Secret Management

  • Secret storage approach chosen (native, Vault, ExternalSecrets)
  • Secret rotation strategy defined
  • Secret access pattern defined
  • Encryption at rest approach defined

Storage Design

  • Persistent volume claims defined (if needed)
  • Storage classes specified
  • Backup strategy defined (if needed)

Design Patterns

Pattern Use When
Deployment Stateless workloads
StatefulSet Stateful workloads (databases, queues)
DaemonSet Node-level agents (logging, monitoring)
Job/CronJob Batch or scheduled workloads

Output Format

{
  "skill": "k8s-design-validation",
  "status": "pass | fail",
  "checks": [
    {
      "area": "Resource design",
      "status": "pass | fail | na",
      "details": "Description"
    }
  ],
  "recommendations": ["Consider adding PodDisruptionBudget for production"],
  "violations": []
}

Read the full file on GitHub · 104 lines

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. 10d ago First seen · 104 lines · 31 tokens per session scan A f9809fe5632c

Subscribe to this mod's changes

k8s-design-validation is a skill published in the GitHub repository paruff/uFawkesAI (2 stars, last pushed 18d ago), licensed MIT. It adds 31 tokens to every session and 570 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 2026-08-31.

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