atmos-container

atmos-container is a skill for Claude Code from cloudposse/atmos. It costs 45 tokens per session (1,276 once invoked), scanned A, original, Apache-2.0.

A way to define and manage application containers as Atmos components. Containers package an application with the files and runtime it needs.

In plain words
What is it for?
Use it to build, run, publish, download, start, stop, inspect, view logs from, and execute commands in configured containers.
Why use it?
It replaces scattered container commands or parts of a Docker Compose setup with stack-aware configuration and lifecycle management.

Skill for Claude Code

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

Part of the atmos plugin — 51 skills shipped together

Good fit Use it to build, run, publish, download, start, stop, inspect, view logs…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cloudposse/atmos/atmos-container
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.

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

Made for: Claude Code.

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-container

README.md
[![agentmods](https://agentmods.dev/badge/skills/cloudposse/atmos/atmos-container.svg)](https://agentmods.dev/skills/cloudposse/atmos/atmos-container)
Your own site
<a href="https://agentmods.dev/skills/cloudposse/atmos/atmos-container"><img src="https://agentmods.dev/badge/skills/cloudposse/atmos/atmos-container.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,276 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 $0.00045 $0.01276
Opus 5 $0.00023 $0.00638
Sonnet 5 $0.00009 $0.00255
Haiku 4.5 $0.00005 $0.00128

Measured 3d ago against content hash 8ae612f0c378, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

atmos-container 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 3d 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-container/SKILL.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Atmos Container Components

Use this skill for first-class Atmos containers. A container component is a stack-scoped service: one component maps to one container, with image build/push/pull and optional persistent runtime.

Need Load
Grouping services into systems atmos-compositions
Workflow container steps atmos-workflows
Lifecycle hooks around components atmos-hooks
Local cloud/API emulators atmos-emulator
Secret and env migration atmos-secrets

Component Shape

Define containers under components.container in stack manifests.

components:
  container:
    api:
      image: ghcr.io/acme/api:latest
      build:
        context: services/api
        dockerfile: Dockerfile
        tags:
          - ghcr.io/acme/api:latest
      run:
        ports:
          - host: 8080
            container: 8080
        command: ./api
      env:
        LOG_LEVEL: info
      composition: app

Container components can participate in hooks, compositions, workflows, and stack-specific config the same way other Atmos component types do.

Relative build.context, build.dockerfile, and run.mounts[].source resolve against the component's own directory — components.container.base_path (default components/container) joined with component:/metadata.component, the same mechanism Terraform/Helmfile/Kubernetes/Helm use — not the directory atmos is invoked from. A component declaring source: is auto-provisioned into a workdir (same JIT support as other component types), and that workdir becomes the anchor instead.

Commands

Command Purpose
atmos container build <name> -s <stack> Build the component image
atmos container push <name> -s <stack> Push the image to its registry
atmos container pull <name> -s <stack> Pull the image
atmos container run <name> -s <stack> Run one foreground container
atmos container up <name> -s <stack> Create/start the persistent container
atmos container down <name> -s <stack> Stop and remove the persistent container
atmos container ps -s <stack> Show running state
atmos container list -s <stack> List container components and state
atmos container logs <name> -s <stack> Show logs
atmos container exec <name> -s <stack> -- <cmd> Execute inside the container

Read the full file on GitHub · 118 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. 3d ago First seen · 118 lines · 45 tokens per session scan A 8ae612f0c378

Subscribe to this mod's changes

atmos-container is a skill published in the GitHub repository cloudposse/atmos (1,372 stars, last pushed today), licensed Apache-2.0. It adds 45 tokens to every session and 1,276 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 2026-09-03.

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