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Agent skill

Atmos Version

by cloudposse in cloudposse/atmos

Atmos Version Tracker: version tracks, lock files, managed external dependency versions, atmos version track commands, !version, file managers, update policy, pinning, and CI verification

Apache-2.0Auto-check passedDevOps & Cloud

Install Atmos Version

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

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

GitHub CLI
$ gh skill install cloudposse/atmos atmos-version --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-version .claude/skills/atmos-version && 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-version
GitHub stars
1.4k
Token cost
~1.3k tokens
SKILL.md length
449 words
Files
1
Skills in repo
70
Repo updated
First seen
Licence
Apache-2.0

At a glance

Atmos Version Tracker: version tracks, lock files, managed external dependency versions, atmos version track commands, !version, file managers, update policy, pinning, and CI verification

  • DevOps & Cloud work in your project
  • SKILL.md covers Related Skills, Core Model, Command Workflow and Managed Files, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Atmos Version is an agent skill from cloudposse/atmos. Atmos Version Tracker: version tracks, lock files, managed external dependency versions, atmos version track commands, !version, file managers, update policy, pinning, and CI verification

Its SKILL.md is about 1.3k 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. 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

  • DevOps & Cloud work in your project

Example prompts

  • “Use the atmos-version skill to atmo Version Tracker: version tracks, lock files, managed external dependency versions, atmos version track commands…”
  • “/atmos-version”

What it can do on your machine

Read from SKILL.md and the folder at commit 36726ae. 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 yaml and bash).

    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 Version loads about 1.3k tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 449 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~50
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k

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 36726ae, republished under its Apache-2.0 licence (© cloudposse). 449 words, ~1,329 tokens.

Download SKILL.mdSave it as .claude/skills/atmos-version/SKILL.md (or your agent's skills folder).
name
atmos-version
description
Atmos Version Tracker: version tracks, lock files, managed external dependency versions, atmos version track commands, !version, file managers, update policy, pinning, and CI verification
metadata.copyright
Copyright Cloud Posse, LLC 2026
metadata.version
1.0.0
metadata.category
state-versioning

Atmos Version Tracker

Use this skill for Atmos-managed software versions under the top-level version: section of atmos.yaml.

The Version Tracker manages external dependency versions that Atmos should resolve, lock, apply to files, and verify. It is separate from the top-level atmos version command, which reports the Atmos CLI version.

NeedLoad
Tool installation from tracked versionsatmos-toolchain
Vendored component source versionsatmos-vendoring
Component source provisioningatmos-components
YAML !version functionatmos-yaml-functions
CI gates for lock/file driftatmos-ci

Core Model

Version policy lives in atmos.yaml; resolved versions live in a lock file, usually versions.lock.yaml.

yaml
version:
  track: prod
  lock_file: versions.lock.yaml

  dependencies:
    checkout:
      ecosystem: github/actions
      datasource: github-tags
      package: actions/checkout
      desired: v6
      update:
        pin: sha

    opentofu:
      ecosystem: toolchain
      datasource: toolchain
      package: opentofu
      desired: "~1.10"

  tracks:
    prod:
      defaults:
        update:
          strategy: patch
          cooldown: 14d

Important concepts:

  • track: named lane such as dev, staging, or prod.
  • dependencies: base catalog of external versions.
  • tracks.<name>.dependencies: per-track overrides.
  • defaults, entry update, and groups: inherited update policy.
  • lock_file: resolved, deterministic versions read by runtime, file managers, and CI.
  • pin: sha / pin: digest: lock immutable Git SHAs or OCI digests.

Command Workflow

Use atmos version track (alias tracks) for the managed-version command group:

shell
atmos version track list
atmos version track show prod
atmos version track add checkout --package=actions/checkout --pin=sha
atmos version track set checkout --desired=v6
atmos version track lock prod
atmos version track update prod --group=infrastructure
atmos version track status prod --format=json
atmos version track diff prod
atmos version track apply prod --check
atmos version track verify prod

Track selection resolves in this order: positional track argument, --track, version.track, then default.

Use lock to resolve current desired versions as-is. Use update to advance from the locked state within policy: strategy caps, cooldown windows, include/exclude filters, prerelease settings, and groups.

Managed Files

Use version.files when literal files must be rewritten from the lock:

yaml
version:
  files:
    - manager: github-actions
      paths:
        - .github/workflows/*.yaml
    - manager: marker
      paths:
        - Dockerfile
    - manager: json
      paths:
        - package.json
      options:
        set:
          - path: version
            from: nginx
    - manager: yaml
      paths:
        - charts/*/values.yaml
      options:
        set:
          - path: version
            from: nginx
    - manager: template
      paths:
        - "**/*.tmpl"

File managers:

  • github-actions: rewrites workflow uses: refs from locked GitHub Action versions.
  • marker: rewrites annotated arbitrary text lines such as # atmos:version nginx.
  • json: writes locked values into JSON files at configured options.set: [{path, from, format}] field paths (sjson/gjson dot-path syntax).
  • yaml: writes locked values into YAML files at the same options.set shape, via the format-preserving YAML editor (dot-notation paths, e.g. sources[0].version); rejects multi-document files and edits that would alter an anchor.
  • template: renders *.tmpl files with .version context.

Use atmos version track apply <track> --check or atmos version track verify <track> in CI to fail when lock files or managed files drift.

Show full SKILL.md (136 more words)Show less

Runtime Usage

Use !version name when a YAML value should come from the active locked track. Use {{ .version.name }} in templates when rendering managed files.

Do not use Version Tracker as a replacement for component versioning patterns. Folder-based component versions, component source:, and vendoring answer "which component source should this stack run?" Version Tracker answers "which external artifact versions should Atmos resolve, lock, apply, and verify?"

Guardrails

  • Keep human-authored policy in atmos.yaml; do not create Renovate or Dependabot config unless the user explicitly asks for those tools.
  • Commit the lock file when tracked versions affect CI, runtime, or generated files.
  • Prefer pin: sha for GitHub Actions so uses: refs are immutable.
  • Use update for policy-aware advancement; use lock for bootstrap or repair.
  • Validate with status, diff, apply --check, and verify before relying on a track in CI.

© 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-version of cloudposse/atmos.

Open the folder on GitHubat commit 36726ae

Compare with similar skills

Atmos Version 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 Version compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Atmos Version this skillcloudposse/atmos1.4k—~1.3kAutomated safety check: PassApache-2.0
Monitor CInrwl/nx29k6 repos~4.7kAutomated safety check: PassMIT
Terraform and OpenTofu Guideagentscope-ai/QwenPaw35k6 repos~4.2kAutomated safety check: PassApache-2.0
Vercel Optimize Auditvercel-labs/agent-skills32k9 repos~4.3kAutomated safety check: PassNone
Openclaw Live Updateropenclaw/openclaw392k—~3.7kAutomated safety check: PassMIT
Analyze GitHub Action Logswithastro/astro63k1 repos~1.3kAutomated safety check: PassCustom licence

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Categories

Questions about Atmos Version

What does Atmos Version do?

Atmos Version Tracker: version tracks, lock files, managed external dependency versions, atmos version track commands, !version, file managers, update policy, pinning, and CI verification. Atmos Version is an agent skill from cloudposse/atmos.

When should I use Atmos Version?

Atmos Version fits situations like: devOps & Cloud work in your project.

How do I install Atmos Version in Claude Code?

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

How do I install Atmos Version in Codex?

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

Can I use Atmos Version 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-version -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-version, .gemini/skills/atmos-version, .github/skills/atmos-version and .opencode/skills/atmos-version in your project.

What does Atmos Version need to run?

SKILL.md names no scripts, command-line tools or credentials: Atmos Version is instructions for the agent only.

Does Atmos Version 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 Version 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 Version use?

Atmos Version 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 Version use?

About 1.3k tokens (SKILL.md is roughly 5.3k 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 Version?

Skills that share tags, products or a category with Atmos Version: Monitor CI (nrwl/nx, 29k stars), Terraform and OpenTofu Guide (agentscope-ai/QwenPaw, 35k stars), Vercel Optimize Audit (vercel-labs/agent-skills, 32k stars) and Openclaw Live Updater (openclaw/openclaw, 392k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Atmos Version?

cloudposse (a GitHub organization) maintains it in cloudposse/atmos, which has 1,396 GitHub stars. The repository holds 70 skills in this directory. The repository was last updated on October 8, 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.