Agent skill

Atmos AWS Ecr

by cloudposse in cloudposse/atmos

AWS ECR commands in Atmos: atmos aws ecr login, ECR auth integrations, Docker credential writes, registry login via identity or explicit registry

Apache-2.0Auto-check passedDevOps & Cloud

Install Atmos AWS Ecr

skills CLI
$ npx skills add cloudposse/atmos --skill atmos-aws-ecr -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install cloudposse/atmos atmos-aws-ecr --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/cloudposse/atmos.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agent-skills/skills/atmos-aws-ecr .claude/skills/atmos-aws-ecr && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
atmos-aws-ecr
GitHub stars
1.4k
Token cost
~699 tokens
SKILL.md length
219 words
Files
1
Skills in repo
70
Repo updated
First seen
Licence
Apache-2.0

At a glance

AWS ECR commands in Atmos: atmos aws ecr login, ECR auth integrations, Docker credential writes, registry login via identity or explicit registry

  • Tasks that involve Containers
  • SKILL.md covers Command Model, Configuration, Agent Guidance and Routing
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Atmos AWS Ecr is an agent skill from cloudposse/atmos. AWS ECR commands in Atmos: atmos aws ecr login, ECR auth integrations, Docker credential writes, registry login via identity or explicit registry

Its SKILL.md is about 700 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud, covering Containers. It works with Amazon Web Services and Docker. The repository describes itself as: Atmos is the open-source runtime for infrastructure — it builds, authenticates, and ships Terraform, OpenTofu, Packer, Ansible, Kubernetes, Helm, and containers the same way on… The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Containers

Example prompts

  • “/atmos-aws-ecr”

Requirements

  • Docker

What it can do on your machine

Read from SKILL.md and the folder at commit fbae93f. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash and yaml).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Atmos AWS Ecr loads about 699 tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 219 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~40
When it runs · the whole SKILL.md, loaded when a task matches
~699

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from cloudposse/atmos at commit fbae93f, republished under its Apache-2.0 licence (© cloudposse). 219 words, ~699 tokens.

Download SKILL.mdSave it as .claude/skills/atmos-aws-ecr/SKILL.md (or your agent's skills folder).
name
atmos-aws-ecr
description
AWS ECR commands in Atmos: atmos aws ecr login, ECR auth integrations, Docker credential writes, registry login via identity or explicit registry
metadata.copyright
Copyright Cloud Posse, LLC 2026
metadata.version
1.0.0
metadata.category
aws

Atmos AWS ECR

Use this skill for logging Docker clients into AWS Elastic Container Registry through Atmos. It owns atmos aws ecr login.

Command Model

atmos aws ecr login supports three modes:

shell
# Named integration from auth.integrations
atmos aws ecr login dev/ecr/primary

# All aws/ecr integrations linked to an identity
atmos aws ecr login --identity dev-admin

# Explicit registry URLs using current AWS credentials
atmos aws ecr login --registry 123456789012.dkr.ecr.us-east-1.amazonaws.com

Named integration and identity modes use Atmos Auth. Explicit --registry mode uses current AWS credentials from the environment.

Configuration

Configure ECR integrations under auth.integrations with kind: aws/ecr. Route provider, identity, AWS SSO, SAML, OIDC, assume role, and assume root details to atmos-auth.

yaml
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/ecr/primary:
      kind: aws/ecr
      via:
        identity: dev-admin
      spec:
        auto_provision: true
        registry:
          account_id: "123456789012"
          region: us-east-2

Agent Guidance

  • Prefer named integrations for stable registries; they make the account, region, and identity explicit in atmos.yaml.
  • Use --identity when the intent is "log in to every ECR registry attached to this identity."
  • Use --registry for one-off registry URLs or when a script intentionally uses ambient AWS credentials instead of Atmos Auth.
  • ECR credentials are written to Docker's config location, respecting DOCKER_CONFIG when set. Set DOCKER_CONFIG first when the workflow needs isolated credentials.
  • spec.auto_provision: true triggers ECR login during atmos auth login; set it to false for registries that should only be logged in explicitly.
  • If Docker, AWS CLI, or other tools must be installed for a CI job, route installation to atmos-toolchain.

Routing

NeedSkill
AWS identity/provider setup, SSO, SAML, OIDC, assume role/rootatmos-auth
Installing Docker, AWS CLI, or related toolsatmos-toolchain
OCI component sources or vendored artifacts stored in registriesatmos-components, atmos-vendoring

© cloudposse, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in agent-skills/skills/atmos-aws-ecr of cloudposse/atmos.

Open the folder on GitHubat commit fbae93f

Compare with similar skills

Atmos AWS Ecr next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Atmos AWS Ecr compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Atmos AWS Ecr this skillcloudposse/atmos1.4k—~699Automated safety check: PassApache-2.0
Senior DevOps Toolkitmaslennikov-ig/claude-code-orchestrator-kit2606 repos~1.1kAutomated safety check: NotesCustom licence
Setup Osworldxlang-ai/OSWorld-V23551 repos~2.6kAutomated safety check: NotesApache-2.0
Logfire Infrastructurepydantic/skills140—~1.8kAutomated safety check: PassMIT
Ksaildevantler-tech/ksail165—~1.1kAutomated safety check: PassCustom licence
Deploy AstermemAsterove/AsterMem161—~3.2kAutomated safety check: WarnAGPL-3.0

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Categories

Questions about Atmos AWS Ecr

What does Atmos AWS Ecr do?

AWS ECR commands in Atmos: atmos aws ecr login, ECR auth integrations, Docker credential writes, registry login via identity or explicit registry. Atmos AWS Ecr is an agent skill from cloudposse/atmos.

When should I use Atmos AWS Ecr?

Atmos AWS Ecr fits situations like: tasks that involve Containers.

How do I install Atmos AWS Ecr in Claude Code?

Run `npx skills add cloudposse/atmos --skill atmos-aws-ecr -a claude-code`. Or copy the skill folder (agent-skills/skills/atmos-aws-ecr in cloudposse/atmos) into .claude/skills/atmos-aws-ecr in your project. Claude Code loads it when a task matches its description.

How do I install Atmos AWS Ecr in Codex?

Run `npx skills add cloudposse/atmos --skill atmos-aws-ecr -a codex`. Or copy the skill folder (agent-skills/skills/atmos-aws-ecr in cloudposse/atmos) into .agents/skills/atmos-aws-ecr in your project. Codex loads it when a task matches its description.

Can I use Atmos AWS Ecr in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add cloudposse/atmos --skill atmos-aws-ecr -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/atmos-aws-ecr, .gemini/skills/atmos-aws-ecr, .github/skills/atmos-aws-ecr and .opencode/skills/atmos-aws-ecr in your project.

What does Atmos AWS Ecr need to run?

SKILL.md names no scripts, command-line tools or credentials: Atmos AWS Ecr is instructions for the agent only. Our summary lists: Docker.

Does Atmos AWS Ecr access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Atmos AWS Ecr safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Atmos AWS Ecr use?

Atmos AWS Ecr is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Atmos AWS Ecr use?

About 699 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Atmos AWS Ecr?

Skills that share tags, products or a category with Atmos AWS Ecr: Senior DevOps Toolkit (maslennikov-ig/claude-code-orchestrator-kit, 260 stars), Setup Osworld (xlang-ai/OSWorld-V2, 355 stars), Logfire Infrastructure (pydantic/skills, 140 stars) and Ksail (devantler-tech/ksail, 165 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Atmos AWS Ecr?

cloudposse (a GitHub organization) maintains it in cloudposse/atmos, which has 1,398 GitHub stars. The repository holds 70 skills in this directory. The repository was last updated on October 9, 2026.

Source: cloudposse/atmos on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.