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.
Borrowing it
Nothing to install: this file belongs to cloudposse/atmos. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/cloudposse/atmos/main/.claude/skills/homebrew/SKILL.mdgit clone --depth 1 https://github.com/cloudposse/atmosWrote 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.
[](https://agentmods.dev/skills/cloudposse/atmos/homebrew)<a href="https://agentmods.dev/skills/cloudposse/atmos/homebrew"><img src="https://agentmods.dev/badge/skills/cloudposse/atmos/homebrew/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.
<a href="https://agentmods.dev/skills/cloudposse/atmos/homebrew"><img src="https://agentmods.dev/badge/skills/cloudposse/atmos/homebrew.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00126 | $0.02786 |
| Opus 5.5 | $0.00050 | $0.01114 |
| Sonnet 5.5 | $0.00025 | $0.00557 |
| Haiku 4.5 | $0.00013 | $0.00279 |
Grade B, and why
homebrew scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Recursive force deletemediumDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf "$tap_dir" Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
How it starts
The opening of the file, as written. The whole thing — 229 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Homebrew Formula PR Workflow (atmos)
Use this skill for any change to Formula/a/atmos.rb in Homebrew/homebrew-core (a
different repo than cloudposse/atmos — all gh commands below need
--repo Homebrew/homebrew-core). It exists because a previous attempt got
auto-closed by BrewTestBot for looking AI-generated and skipping the real
template — this skill is how to not repeat that.
Do not open a new PR to fix a closed one
If BrewTestBot closes a PR with the incomplete-pr-template message, it says
explicitly: "Do not open a new pull request for this." Editing the body of
the existing (closed) PR to complete the template makes the bot reopen it
automatically. Check state first:
gh pr view <num> --repo Homebrew/homebrew-core --json state,title,body,comments
Before submitting anything, also confirm there isn't a duplicate open PR for the same formula (the template's own checklist requires this):
gh pr list --repo Homebrew/homebrew-core --search "atmos in:title" --state open --json number,title,url
The real PR template
Fetch it fresh rather than assuming — it changes:
gh api repos/Homebrew/homebrew-core/contents/.github/PULL_REQUEST_TEMPLATE.md --jq '.content' | openssl base64 -d -A
The template body is just the checklist — unlike atmos's own PR template,
there are no ## what/## why headers. That does not mean explanation is
optional: real merged homebrew-core PRs consistently open with a free-text
paragraph (often with links to the upstream fix/issue) above the checklist —
e.g. "Fixes #301233 by building libraries statically... Roughly similar to
Fedora's layout, but they also delete the Flang RT headers..." (PR #301251).
Write that explanation; just don't force it into headed sections the
template doesn't ask for. The checklist itself is what BrewTestBot actually
gates on. As of this writing, the checklist covers:
- Followed the contributing guidelines?
- Commits follow the commit style guide?
- No other open PR for the same formula?
- Built locally with
HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>? brew test <formula>passing?brew audit --strict <formula>passing (orbrew audit --newfor a new formula)?- AI/LLM disclosure checkbox (see below — this is the one that sank the first attempt).
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.
- 1mo ago First seen · 229 lines · 126 tokens per session scan B 95cc1acd7c5c
homebrew is a skill published in the GitHub repository cloudposse/atmos (1,403 stars, last pushed today), licensed Apache-2.0. It adds 126 tokens to every session and 2,786 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it B with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-10.
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csv
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git
Git and code hosting platform management — GitHub, GitLab, Codeberg, Forgejo. Zero barrier — install x-cmd and manage repos from the terminal. Use for "git", "github", "gitlab", "repo", "pull request", "code hosting".
work
Handle issue/PR work items with worktree isolation. Triggered by "/work [issuelink|description]" to start focused work.
gke-basics
Trigger: Use when working with Google Kubernetes Engine basics — cluster setup, node pools, workloads, networking, and storage fundamentals.
repo
Convention + tooling for where agent-cloned repos live and how their worktrees are arranged. Default bare repo at /.x-repo/.bare/ / / .git with linked working trees under /.x-repo/ / / [/@ ]. Discovered via x repo ls. Worktree management via x repo wt. Use for "where to clone", "git clone path", "workspace layout"…
gh
You have access to gh (GitHub CLI) for repository and project management.