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antithesis-setup-k8s

antithesis-setup-k8s is a skill for Claude Code from antithesishq/antithesis-skills. It costs 120 tokens per session (1,482 once invoked), scanned A, original, Apache-2.0.

A setup workflow for preparing Kubernetes deployments for Antithesis, a testing system that explores software behavior under many conditions. It converts Helm charts, Kustomize templates, or raw Kubernetes files into a smaller set of deployment manifests.

In plain words
What is it for?
Use it to create and validate the Antithesis Kubernetes configuration before adding test workloads or launching a run.
Why use it?
It removes the manual work of reshaping deployment files and checks that the test harness can validate and deploy the system under test.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the antithesis-skills plugin — 12 skills shipped together

not rated 267repo changed 2d ago A scan SkillSpector: pass 120 tokens original Apache-2.0

Good fit Use it to create and validate the Antithesis Kubernetes configuration before adding test workloads or launching a run.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/antithesishq/antithesis-skills/antithesis-setup-k8s
View source ↗ antithesishq/antithesis-skills
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 antithesishq/antithesis-skills --skill antithesis-setup-k8s
Clone the repo
git clone --depth 1 https://github.com/antithesishq/antithesis-skills

Made for: Claude Code.

Or install antithesis-skills, the plugin that ships this one along with the rest of its 12 skills.

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 antithesis-setup-k8s

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/antithesishq/antithesis-skills/antithesis-setup-k8s"><img src="https://agentmods.dev/badge/skills/antithesishq/antithesis-skills/antithesis-setup-k8s.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 120 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,482 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 $0.00120 $0.01482
Opus 5 $0.00060 $0.00741
Sonnet 5 $0.00024 $0.00296
Haiku 4.5 $0.00012 $0.00148

Measured 2d ago against content hash fa25337f6c9f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

antithesis-setup-k8s 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 2d 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.

antithesis-setup-k8s/SKILL.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Antithesis K8s Setup

Skill version: 2026-09-08 2e4a837

Purpose and Goal

Scaffold the antithesis/ harness needed to bring the system up in Antithesis in a mostly idle, ready state.

Success means:

  • The deployment definition exists in antithesis/config/manifests/ and references the required SUT images. This is a collection of raw Kubernetes manifests (no helm, no kustomize)
  • antithesis/config/manifests/ is a minimized setup of the k8s-based SUT that is required for the Antithesis run
  • snouty validate on antithesis/config/ succeeds
  • The harness is ready for the antithesis-workload skill to add or iterate on test templates, assertions, and workload code
  • If the user asks to submit or launch a run, use the antithesis-launch skill — do not run snouty launch directly

Prerequisites

  • The user must have a collection of Kubernetes artifacts. This can be a helm chart, kustomize templates, or Kubernetes manifests.

    • If the user has a helm chart, they must provide a values file that can be templated into the helm chart. This can be in the form of a standard values.yaml, an ArgoCD Application with a values field, or a FluxCD HelmRelease with a values field.
    • If the user has a collection of helm charts, determine what subset (ideally a single one or a couple to make one standalone application) of helm charts will be the system under test in Antithesis. You may have to ask the user which one they want. Do not infer what the single target SUT is.

  • The user must have already pushed up images to the antithesis registry or is using public images. The images that should be pushed up are all the images that are required to run the templatized helm chart. There are instructions for this in references/manifests.md

  • DO NOT PROCEED if snouty is not installed. See https://raw.githubusercontent.com/antithesishq/snouty/refs/heads/main/README.md for installation options.

  • This skill runs kubectl, kind, k3s, kapp to touch an active Kubernetes cluster to validate that the manifests are able to come up in a Kubernetes environment. Ask the user before running any of these commands. The skill should only touch Kubernetes resources that it has created and should clean up all resources it creates before exiting.

Read the full file on GitHub · 89 lines

Files

What ships with it

10 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. 2d ago Changed fa25337f6c9f
  2. 7d ago Changed 96a5fc800069
  3. 11d ago First seen · 89 lines · 120 tokens per session scan A da686a71b3bf

Subscribe to this mod's changes

antithesis-setup-k8s is a skill published in the GitHub repository antithesishq/antithesis-skills (267 stars, last pushed 3d ago), licensed Apache-2.0. It adds 120 tokens to every session and 1,482 once invoked, about $0.0006 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.

ContainersDevOps and cloudTesting
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