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Agent skill

Operate Cloud Posture Toolchain

by cyberful in cyberful/cyberful

Operate Prowler, Cloudsplaining, cloud CLIs, policy documents, and resource evidence for advanced AWS, Azure, GCP, and Kubernetes-adjacent posture assessment.

AGPL-3.0Auto-check passedDevOps & Cloud

Install Operate Cloud Posture Toolchain

skills CLI
$ npx skills add cyberful/cyberful --skill operate-cloud-posture-toolchain -a claude-code

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

GitHub CLI
$ gh skill install cyberful/cyberful operate-cloud-posture-toolchain --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/cyberful/cyberful.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cyberful/builtin/skills/operate-cloud-posture-toolchain .claude/skills/operate-cloud-posture-toolchain && 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
operate-cloud-posture-toolchain
GitHub stars
135
Token cost
~907 tokens
SKILL.md length
322 words
Files
3 (incl. references)
Skills in repo
85
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Operate Prowler, Cloudsplaining, cloud CLIs, policy documents, and resource evidence for advanced AWS, Azure, GCP, and Kubernetes-adjacent posture assessment.

  • Works in 4 steps: an exposed or compromisable principal; → a permission or trust transition; → a target resource or stronger identity; → …
  • Multi-project baselines
  • SKILL.md covers Capture the authority envelope, Run broad posture and focused…, Prioritize chains and Diagnose false assurance, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Operate Cloud Posture Toolchain is an agent skill from cyberful/cyberful. Operate Prowler, Cloudsplaining, cloud CLIs, policy documents, and resource evidence for advanced AWS, Azure, GCP, and Kubernetes-adjacent posture assessment. Use for multi-account or multi-project baselines, effective-IAM analysis, trust-boundary mapping, resource-policy review, scanner reconciliation, or distinguishing absent controls from controls invisible to the current credentials.

Its SKILL.md is about 910 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `agents/openai.yaml` and `references/cloud-iam-fieldbook.md`).

It sits in DevOps & Cloud, covering Accounting and bookkeeping and Container orchestration. It works with Amazon Web Services, Google Cloud, Microsoft Azure and Kubernetes. The repository describes itself as: Cyberful is an open-source AI Red Team for discovering, exploiting, verifying, and remediating vulnerabilities. The licence is AGPL-3.0.

When your agent uses it

  • Multi-project baselines
  • Effective-IAM analysis
  • Trust-boundary mapping
  • Resource-policy review

Example prompts

  • “/operate-cloud-posture-toolchain”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. an exposed or compromisable principal;
  2. a permission or trust transition;
  3. a target resource or stronger identity;
  4. an observable security consequence.

What it can do on your machine

Read from SKILL.md and the folder at commit ec598a6. 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.

    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

Operate Cloud Posture Toolchain loads about 907 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 106 tokens; SKILL.md has 322 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~106
When it runs · the whole SKILL.md, loaded when a task matches
~907
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.5k

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 cyberful/cyberful at commit ec598a6, republished under its AGPL-3.0 licence (© cyberful). 322 words, ~907 tokens.

Download SKILL.mdSave it as .claude/skills/operate-cloud-posture-toolchain/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
operate-cloud-posture-toolchain
description
Operate Prowler, Cloudsplaining, cloud CLIs, policy documents, and resource evidence for advanced AWS, Azure, GCP, and Kubernetes-adjacent posture assessment. Use for multi-account or multi-project baselines, effective-IAM analysis, trust-boundary mapping, resource-policy review, scanner reconciliation, or distinguishing absent controls from controls invisible to the current credentials.
metadata.domain
cloud-security
metadata.subdomain
posture-tooling
metadata.triggers
cloud posture assessment, AWS IAM review, Azure tenant review, GCP project review, Prowler scan, Cloudsplaining analysis
metadata.tags
AWS, Azure, GCP, Prowler, Cloudsplaining, IAM

Operate Cloud Posture Toolchain

Treat every cloud scan as a view through one principal. A missing resource may mean absent, out of region, filtered, unpaginated, unsupported, or denied. Model visibility before interpreting compliance.

Capture the authority envelope

Record provider, organization/tenant, account/subscription/project, principal ARN or object identity, assumed-role chain, session policy, permission boundary, organization policies, enabled regions, API endpoints, credential source, collection time, and explicit/implicit API denials.

Build a visibility ledger: resource family, enumeration API, region/scope, result count, pagination status, denied calls, and independent expected count.

Run broad posture and focused IAM analysis

Use Prowler with pinned provider/account/region scope and machine-readable output. Keep failed checks, muted checks, API errors, and unsupported checks distinct.

Use Cloudsplaining against collected AWS IAM policies to surface privilege escalation, data exposure, infrastructure modification, and resource-constraint gaps. Then reconstruct effective access across identity policy, resource policy, trust policy, session policy, permissions boundary, service-control policy, conditions, grants, and service-specific authorization.

Read references/cloud-iam-fieldbook.md when analyzing effective authority or cross-account paths.

Prioritize chains

Prefer findings that connect:

  1. an exposed or compromisable principal;
  2. a permission or trust transition;
  3. a target resource or stronger identity;
  4. an observable security consequence.

High-value pivots include pass/attach role, workload identity mutation, build/deployment control, key-policy control, secret read plus compute execution, log/audit disablement, public resource-policy paths, and organization boundary escape.

Diagnose false assurance

Reconcile scanner output with provider-native queries for representative critical checks. Investigate disabled regions, delegated administrator accounts, organization-wide services, service-linked roles, eventually consistent APIs, conditional policies, wildcard resources that are service-limited, and policies attached outside the collected account.

Never label a denied enumeration as compliant. Mark it unassessed with the missing API and likely effect on coverage.

Deliver

Preserve principal identity, scope manifest, visibility ledger, raw outputs, provider evidence, policy documents, evaluated condition context, chain graph, rejected scanner findings, and residual unknowns. Report the smallest policy/control change that breaks the demonstrated chain without assuming a single policy document is the whole authorization system.

© cyberful, AGPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in cyberful/builtin/skills/operate-cloud-posture-toolchain of cyberful/cyberful.

  • SKILL.md
  • agents/openai.yaml
  • references/cloud-iam-fieldbook.md

Open the folder on GitHubat commit ec598a6

Compare with similar skills

Operate Cloud Posture Toolchain 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.

Operate Cloud Posture Toolchain compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Operate Cloud Posture Toolchain this skillcyberful/cyberful135—~907Automated safety check: PassAGPL-3.0
Provider Bug Reviewmondoohq/mql412—~2.9kAutomated safety check: PassCustom licence
Kcli Cluster Deploymentkarmab/kcli653—~1.5kAutomated safety check: PassApache-2.0
Extend Discovery Typerunwhen-contrib/runwhen-local163—~1.7kAutomated safety check: PassApache-2.0
Kclikarmab/kcli653—~2.6kAutomated safety check: WarnApache-2.0
Cloud AuditCommonHuman-Lab/nyxstrike157—~1.1kAutomated safety check: PassCustom licence

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Works with

Categories

Questions about Operate Cloud Posture Toolchain

What does Operate Cloud Posture Toolchain do?

Operate Prowler, Cloudsplaining, cloud CLIs, policy documents, and resource evidence for advanced AWS, Azure, GCP, and Kubernetes-adjacent posture assessment. Operate Cloud Posture Toolchain is an agent skill from cyberful/cyberful. Operate Prowler, Cloudsplaining, cloud CLIs, policy documents, and resource evidence for advanced AWS, Azure, GCP, and Kubernetes-adjacent posture assessment.

When should I use Operate Cloud Posture Toolchain?

Operate Cloud Posture Toolchain fits situations like: multi-project baselines; effective-IAM analysis; trust-boundary mapping; resource-policy review.

How do I install Operate Cloud Posture Toolchain in Claude Code?

Run `npx skills add cyberful/cyberful --skill operate-cloud-posture-toolchain -a claude-code`. Or copy the skill folder (cyberful/builtin/skills/operate-cloud-posture-toolchain in cyberful/cyberful) into .claude/skills/operate-cloud-posture-toolchain in your project. Claude Code loads it when a task matches its description.

How do I install Operate Cloud Posture Toolchain in Codex?

Run `npx skills add cyberful/cyberful --skill operate-cloud-posture-toolchain -a codex`. Or copy the skill folder (cyberful/builtin/skills/operate-cloud-posture-toolchain in cyberful/cyberful) into .agents/skills/operate-cloud-posture-toolchain in your project. Codex loads it when a task matches its description.

Can I use Operate Cloud Posture Toolchain 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 cyberful/cyberful --skill operate-cloud-posture-toolchain -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/operate-cloud-posture-toolchain, .gemini/skills/operate-cloud-posture-toolchain, .github/skills/operate-cloud-posture-toolchain and .opencode/skills/operate-cloud-posture-toolchain in your project.

What does Operate Cloud Posture Toolchain need to run?

SKILL.md names no scripts, command-line tools or credentials: Operate Cloud Posture Toolchain is instructions for the agent only.

Does Operate Cloud Posture Toolchain 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 Operate Cloud Posture Toolchain 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 Operate Cloud Posture Toolchain use?

Operate Cloud Posture Toolchain is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Operate Cloud Posture Toolchain use?

About 907 tokens (SKILL.md is roughly 3.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 596 tokens, read only when the agent opens those files.

What are the alternatives to Operate Cloud Posture Toolchain?

Skills that share tags, products or a category with Operate Cloud Posture Toolchain: Provider Bug Review (mondoohq/mql, 412 stars), Kcli Cluster Deployment (karmab/kcli, 653 stars), Extend Discovery Type (runwhen-contrib/runwhen-local, 163 stars) and Kcli (karmab/kcli, 653 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Operate Cloud Posture Toolchain?

cyberful (a GitHub organization) maintains it in cyberful/cyberful, which has 135 GitHub stars. The repository holds 85 skills in this directory. The repository was last updated on August 24, 2026.

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