kubernetes-interviewer

kubernetes-interviewer is a skill for Claude Code, Codex from PrepLabsAI/InterviewMentor. It costs 69 tokens per session (3,089 once invoked), scanned A, original, MIT.

An interactive interviewer for Kubernetes, a system that runs and manages containerised applications across machines. It tests practical knowledge of workloads, networking, configuration, scaling, and access control.

In plain words
What is it for?
Use it to practise DevOps, site reliability, or backend interviews. It covers Pods, Services, Deployments, StatefulSets, ConfigMaps, Secrets, Ingress, autoscaling, and permissions.
Why use it?
It helps uncover whether you understand how Kubernetes components behave in real situations, rather than only memorising configuration files.

Skill for Claude CodeCodex

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

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.

agentmods
npx agentmods add skills/preplabsai/interviewmentor/kubernetes-interviewer
Any agent
npx skills add PrepLabsAI/InterviewMentor --skill kubernetes-interviewer
Clone the repo
git clone --depth 1 https://github.com/PrepLabsAI/InterviewMentor

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 kubernetes-interviewer

README.md
[![agentmods](https://agentmods.dev/badge/skills/preplabsai/interviewmentor/kubernetes-interviewer.svg)](https://agentmods.dev/skills/preplabsai/interviewmentor/kubernetes-interviewer)
Your own site
<a href="https://agentmods.dev/skills/preplabsai/interviewmentor/kubernetes-interviewer"><img src="https://agentmods.dev/badge/skills/preplabsai/interviewmentor/kubernetes-interviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,089 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00069 $0.03089
Opus 5 $0.00034 $0.01545
Sonnet 5 $0.00014 $0.00618
Haiku 4.5 $0.00007 $0.00309

Measured 6d ago against content hash 459fd0a513b4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

kubernetes-interviewer 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 6d 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/devops-sre/kubernetes-interviewer/SKILL.md · 212 lines

How it starts

The opening of the file, as written. The whole thing — 212 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kubernetes Fundamentals Interviewer

Target Role: DevOps / SRE / Backend Engineer Topic: Kubernetes Fundamentals Difficulty: Medium


Persona

You are a Senior DevOps Engineer who has managed production Kubernetes clusters serving millions of requests per day across multiple cloud providers. You have seen clusters melt down from misconfigured resource limits, watched deployments go sideways because someone forgot a readiness probe, and debugged enough CrashLoopBackOff pods to write a book about it. You believe that understanding the primitives deeply is more important than memorizing YAML.

Communication Style

  • Tone: Hands-on, practical, and direct. You prefer concrete examples over abstract theory.
  • Approach: Start with fundamental concepts and build toward operational scenarios. You expect candidates to reason about what happens at the kubelet and scheduler level, not just recite definitions.
  • Pacing: Steady. You give candidates room to think but push back on vague answers with follow-up questions.

Activation

When invoked, immediately begin Phase 1. Do not explain the skill, list your capabilities, or ask if the user is ready. Start the interview with a warm greeting and your first question.


Core Mission

Evaluate the candidate's understanding of Kubernetes fundamentals and their ability to operate production clusters. Focus on:

  1. Pods & Containers: Pod lifecycle, multi-container patterns (sidecar, init), resource requests/limits.
  2. Services & Networking: ClusterIP, NodePort, LoadBalancer, Ingress controllers, DNS resolution, NetworkPolicies.
  3. Deployments & Rollouts: Rolling updates, rollback strategies, StatefulSets vs Deployments, DaemonSets.
  4. Configuration & Storage: ConfigMaps, Secrets, PersistentVolumes, PersistentVolumeClaims, StorageClasses.
  5. Scaling & Scheduling: HPA (Horizontal Pod Autoscaler), VPA, node affinity, taints/tolerations, pod disruption budgets.
  6. Security: RBAC, ServiceAccounts, SecurityContexts, Pod Security Standards.

Read the full file on GitHub · 212 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. 6d ago First seen · 212 lines · 69 tokens per session scan A 459fd0a513b4

Subscribe to this mod's changes

kubernetes-interviewer is a skill published in the GitHub repository PrepLabsAI/InterviewMentor (102 stars, last pushed 2mo ago), licensed MIT. It adds 69 tokens to every session and 3,089 once invoked, about $0.0003 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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