atmos-aws-eks

atmos-aws-eks is a skill for Claude Code, Codex from cloudposse/atmos. It costs 40 tokens per session (822 once invoked), scanned A, original, Apache-2.0.

A set of Atmos commands for connecting local Kubernetes tools to Amazon EKS, AWS's managed Kubernetes service. It can create kubeconfig entries and provide the login token used by kubectl.

In plain words
What is it for?
Use it to configure kubectl access, generate EKS credentials, and use Atmos authentication integrations or explicit AWS cluster details.
Why use it?
It avoids manually assembling cluster configuration and authentication details before working with an EKS cluster.

Skill for Claude CodeCodex

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

Part of the atmos plugin — 51 skills shipped together

About the project

Atmos is an infrastructure runtime that coordinates tools such as Terraform, OpenTofu, Kubernetes, Helm, Packer, Ansible, and containers through consistent commands and configuration. It is for teams running cloud infrastructure on laptops, in CI, or through AI agents across environments and regions. Its catalogue entries provide skills, agents, commands, and other add-ons for Atmos workflows.

cloudposse/atmos · 1,372 stars · on GitHub · atmos.tools

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/cloudposse/atmos/atmos-aws-eks
Any agent
npx skills add cloudposse/atmos --skill atmos-aws-eks
Clone the repo
git clone --depth 1 https://github.com/cloudposse/atmos

Made for: Claude Code, Codex.

Or install atmos, the plugin that ships this one along with the rest of its 51 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 atmos-aws-eks

README.md
[![agentmods](https://agentmods.dev/badge/skills/cloudposse/atmos/atmos-aws-eks.svg)](https://agentmods.dev/skills/cloudposse/atmos/atmos-aws-eks)
Your own site
<a href="https://agentmods.dev/skills/cloudposse/atmos/atmos-aws-eks"><img src="https://agentmods.dev/badge/skills/cloudposse/atmos/atmos-aws-eks.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 822 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 $0.00040 $0.00822
Opus 5 $0.00020 $0.00411
Sonnet 5 $0.00008 $0.00164
Haiku 4.5 $0.00004 $0.00082

Measured 6d ago against content hash 03a316a4d915, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

atmos-aws-eks 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.

agent-skills/skills/atmos-aws-eks/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Atmos AWS EKS

Use this skill for Atmos commands that connect AWS EKS clusters to local Kubernetes tooling. It owns atmos aws eks update-kubeconfig and atmos aws eks token.

Command Model

atmos aws eks update-kubeconfig writes or prints kubeconfig entries for an EKS cluster. It can run from explicit CLI arguments, a component and stack, an auth.integrations entry, or an Atmos identity with explicit cluster details.

atmos aws eks update-kubeconfig <component> -s <stack>
atmos aws eks update-kubeconfig --profile dev --name dev-cluster
atmos aws eks update-kubeconfig --integration dev/eks/primary
atmos aws eks update-kubeconfig --name dev-cluster --region us-east-2 --identity dev-admin

atmos aws eks token generates a Kubernetes ExecCredential token for kubectl. It is normally called by kubectl from generated kubeconfig rather than run by humans.

atmos aws eks token --cluster-name dev-cluster --region us-east-2 --identity dev-admin

Configuration

For integration mode, configure an aws/eks integration in auth.integrations. Route provider, identity, AWS SSO, SAML, OIDC, assume role, and assume root details to atmos-auth.

auth:
  providers:
    company-sso:
      kind: aws/iam-identity-center
      region: us-east-1
      start_url: https://company.awsapps.com/start/

  identities:
    dev-admin:
      kind: aws/permission-set
      via:
        provider: company-sso
      principal:
        name: AdministratorAccess
        account: dev

  integrations:
    dev/eks/primary:
      kind: aws/eks
      via:
        identity: dev-admin
      spec:
        cluster:
          name: dev-cluster
          region: us-east-2
          alias: dev-eks

Agent Guidance

  • Prefer --integration when a named EKS integration exists; it centralizes cluster name, region, alias, and identity selection.
  • Use --identity with --name and --region for ad hoc kubeconfig generation through Atmos Auth.
  • Use --profile or --role-arn only when the workflow intentionally relies on AWS CLI-style credentials rather than Atmos Auth. In this command, --profile means the AWS CLI/kubeconfig credential profile, not an Atmos profile, --identity, or --integration.
  • Use --dry-run when reviewing kubeconfig output or avoiding writes to the user's kubeconfig.
  • Do not hard-code kubeconfig paths unless the repo already has a convention. Check components.helmfile.kubeconfig_path and Helmfile settings first when using component/stack mode.
  • If the AWS CLI or kubectl must be installed for a scripted job, route tool installation to atmos-toolchain.

Read the full file on GitHub · 91 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. 6d ago First seen · 91 lines · 40 tokens per session scan A 03a316a4d915

Subscribe to this mod's changes

atmos-aws-eks is a skill published in the GitHub repository cloudposse/atmos (1,372 stars, last pushed today), licensed Apache-2.0. It adds 40 tokens to every session and 822 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.

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