Container Security
hardw00t/ai-security-arsenal
Container and Kubernetes security assessment — image vulnerability scanning, SBOM diff analysis, K8s cluster auditing, RBAC privilege mapping, NetworkPolicy review, container escape testing, and…
Operate kubectl, kube-bench, Trivy, Prowler, and manifest/runtime evidence for advanced Kubernetes security assessment.
Install Operate Kubernetes Toolchain
$ npx skills add cyberful/cyberful --skill operate-kubernetes-toolchain -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cyberful/cyberful operate-kubernetes-toolchain --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cyberful/builtin/skills/operate-kubernetes-toolchain .claude/skills/operate-kubernetes-toolchain && rm -rf skills-srcUse ~/.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/
Install the "operate-kubernetes-toolchain" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/operate-kubernetes-toolchain into .claude/skills/operate-kubernetes-toolchain/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "operate-kubernetes-toolchain", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/operate-kubernetes-toolchainType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add cyberful/cyberful --skill operate-kubernetes-toolchain -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cyberful/cyberful operate-kubernetes-toolchain --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .agents/skills && cp -r skills-src/cyberful/builtin/skills/operate-kubernetes-toolchain .agents/skills/operate-kubernetes-toolchain && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "operate-kubernetes-toolchain" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/operate-kubernetes-toolchain into .agents/skills/operate-kubernetes-toolchain/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "operate-kubernetes-toolchain", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cyberful/cyberful --skill operate-kubernetes-toolchain -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cyberful/cyberful operate-kubernetes-toolchain --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/cyberful/builtin/skills/operate-kubernetes-toolchain .cursor/skills/operate-kubernetes-toolchain && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "operate-kubernetes-toolchain" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/operate-kubernetes-toolchain into .cursor/skills/operate-kubernetes-toolchain/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "operate-kubernetes-toolchain", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/cyberful/cyberful.git --path cyberful/builtin/skills/operate-kubernetes-toolchain--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add cyberful/cyberful --skill operate-kubernetes-toolchain -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cyberful/cyberful operate-kubernetes-toolchain --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/cyberful/builtin/skills/operate-kubernetes-toolchain .gemini/skills/operate-kubernetes-toolchain && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "operate-kubernetes-toolchain" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/operate-kubernetes-toolchain into .gemini/skills/operate-kubernetes-toolchain/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "operate-kubernetes-toolchain", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install cyberful/cyberful operate-kubernetes-toolchainInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add cyberful/cyberful --skill operate-kubernetes-toolchain -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .github/skills && cp -r skills-src/cyberful/builtin/skills/operate-kubernetes-toolchain .github/skills/operate-kubernetes-toolchain && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "operate-kubernetes-toolchain" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/operate-kubernetes-toolchain into .github/skills/operate-kubernetes-toolchain/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "operate-kubernetes-toolchain", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cyberful/cyberful --skill operate-kubernetes-toolchain -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cyberful/cyberful operate-kubernetes-toolchain --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/cyberful/builtin/skills/operate-kubernetes-toolchain .opencode/skills/operate-kubernetes-toolchain && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "operate-kubernetes-toolchain" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/operate-kubernetes-toolchain into .opencode/skills/operate-kubernetes-toolchain/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "operate-kubernetes-toolchain", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
operate-kubernetes-toolchain- GitHub stars
- 135
- Token cost
- ~898 tokens
- SKILL.md length
- 330 words
- Files
- 3 (incl. references)
- Skills in repo
- 85
- Repo updated
- First seen
- Licence
- AGPL-3.0
At a glance
Operate kubectl, kube-bench, Trivy, Prowler, and manifest/runtime evidence for advanced Kubernetes security assessment.
- Context and RBAC mapping
- SKILL.md covers Pin context and visibility, Map effective authorization, Reconcile desired and live state and Use kube-bench correctly, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Workload-identity analysis
What it does
Operate Kubernetes Toolchain is an agent skill from cyberful/cyberful. Operate kubectl, kube-bench, Trivy, Prowler, and manifest/runtime evidence for advanced Kubernetes security assessment. Use for context and RBAC mapping, workload-identity analysis, admission and Pod Security review, node benchmark interpretation, secret and network boundary review, cluster escape-path analysis, or reconciliation of declared manifests with live objects.
Its SKILL.md is about 900 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/kubernetes-fieldbook.md`).
It sits in DevOps & Cloud, covering Container orchestration, Authorization and RBAC and Security review. It works with Kubernetes and Trivy. 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
- Context and RBAC mapping
- Workload-identity analysis
- Admission and Pod Security review
- Node benchmark interpretation
Example prompts
- “/operate-kubernetes-toolchain”
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 Kubernetes Toolchain loads about 898 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 100 tokens; SKILL.md has 330 words of instructions outside code blocks.
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). 330 words, ~898 tokens.
Download SKILL.mdSave it as
.claude/skills/operate-kubernetes-toolchain/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- operate-kubernetes-toolchain
- description
- Operate kubectl, kube-bench, Trivy, Prowler, and manifest/runtime evidence for advanced Kubernetes security assessment. Use for context and RBAC mapping, workload-identity analysis, admission and Pod Security review, node benchmark interpretation, secret and network boundary review, cluster escape-path analysis, or reconciliation of declared manifests with live objects.
- metadata.domain
- security-tooling
- metadata.subdomain
- kubernetes
- metadata.triggers
- Kubernetes security toolchain, cluster RBAC assessment, Kubernetes workload identity, admission policy review, desired live state comparison
- metadata.tags
- Kubernetes, kubectl, RBAC, admission-control, workload-identity, kube-bench
Operate Kubernetes Toolchain
Analyze Kubernetes as interacting API, admission, workload, identity, network, node, and cloud control planes. A manifest-only review and a cluster-only scan each omit decisive evidence.
Pin context and visibility
Before using kubectl, record kubeconfig source, current context, server certificate identity, cluster UID if observable, namespace, user, impersonation settings, API version, and current authorization. Never rely on the context name alone.
Build a collection ledger for cluster-scoped and namespaced resource types, API discovery failures, forbidden responses, pagination, omitted CRDs, and namespaces not visible to the current principal.
Map effective authorization
Enumerate role bindings, cluster role bindings, aggregated roles, service accounts, token projection, impersonation, escalation/bind permissions, webhook-dependent authorization, and cloud workload identity. Use auth can-i checks as probes, not a complete graph: resource names, subresources, non-resource URLs, admission behavior, and external identity still require inspection.
Read references/kubernetes-fieldbook.md for high-value primitives and benchmark caveats.
Reconcile desired and live state
Compare source manifests, Helm/Kustomize output, GitOps desired state, and live objects. Focus on mutated defaults, injected sidecars, generated RBAC, image digest drift, ephemeral containers, admission exemptions, runtime classes, host mounts, device access, capabilities, seccomp/AppArmor/SELinux, and service-account token behavior.
Scan images and IaC with Trivy, then verify critical findings against the exact running image digest and pod spec.
Use kube-bench correctly
Run kube-bench only where host files, process state, and configuration paths are actually mounted and visible. Select the benchmark matching distribution and Kubernetes version. Treat skipped or missing-file checks as coverage gaps, especially on managed control planes where the provider owns components.
Build attack and containment paths
Trace from exposed workload to service account, secret/config access, API permissions, adjacent namespaces, node primitives, cloud metadata/workload identity, registry, CI/GitOps controller, and control-plane influence. Evaluate NetworkPolicy in both directions and include DNS, host networking, node-local services, and policy-engine coverage.
Deliver
Preserve context identity, visibility ledger, API errors, live object excerpts, desired/live diffs, RBAC paths, benchmark profile and mount assumptions, image digests, and bounded proof. Separate "not allowed," "not visible," "not applicable," and "not tested."
© 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-kubernetes-toolchain of cyberful/cyberful.
- SKILL.md
- agents/openai.yaml
- references/kubernetes-fieldbook.md
Open the folder on GitHubat commit ec598a6
Compare with similar skills
Operate Kubernetes 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Operate Kubernetes Toolchain this skillcyberful/cyberful | 135 | — | ~898 | Automated safety check: Pass | AGPL-3.0 | |
| Container Securityhardw00t/ai-security-arsenal | 105 | — | ~2.8k | Automated safety check: Pass | None | |
| Performing Container Security Scanning With Trivymukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~818 | Automated safety check: Pass | Apache-2.0 | |
| Cloud AuditCommonHuman-Lab/nyxstrike | 157 | — | ~1.1k | Automated safety check: Pass | Custom licence | |
| Container Security Hardeningsickn33/agentic-awesome-skills | 47k | 1 repos | ~1k | Automated safety check: Notes | MIT | |
| Performing Kubernetes Etcd Security Assessmentmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~1.9k | Automated safety check: Pass | Apache-2.0 |
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Related
Works with
Categories
Questions about Operate Kubernetes Toolchain
What does Operate Kubernetes Toolchain do?
Operate kubectl, kube-bench, Trivy, Prowler, and manifest/runtime evidence for advanced Kubernetes security assessment. Operate Kubernetes Toolchain is an agent skill from cyberful/cyberful. Operate kubectl, kube-bench, Trivy, Prowler, and manifest/runtime evidence for advanced Kubernetes security assessment.
When should I use Operate Kubernetes Toolchain?
Operate Kubernetes Toolchain fits situations like: context and RBAC mapping; workload-identity analysis; admission and Pod Security review; Node benchmark interpretation.
How do I install Operate Kubernetes Toolchain in Claude Code?
Run `npx skills add cyberful/cyberful --skill operate-kubernetes-toolchain -a claude-code`. Or copy the skill folder (cyberful/builtin/skills/operate-kubernetes-toolchain in cyberful/cyberful) into .claude/skills/operate-kubernetes-toolchain in your project. Claude Code loads it when a task matches its description.
How do I install Operate Kubernetes Toolchain in Codex?
Run `npx skills add cyberful/cyberful --skill operate-kubernetes-toolchain -a codex`. Or copy the skill folder (cyberful/builtin/skills/operate-kubernetes-toolchain in cyberful/cyberful) into .agents/skills/operate-kubernetes-toolchain in your project. Codex loads it when a task matches its description.
Can I use Operate Kubernetes 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-kubernetes-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-kubernetes-toolchain, .gemini/skills/operate-kubernetes-toolchain, .github/skills/operate-kubernetes-toolchain and .opencode/skills/operate-kubernetes-toolchain in your project.
What does Operate Kubernetes Toolchain need to run?
SKILL.md names no scripts, command-line tools or credentials: Operate Kubernetes Toolchain is instructions for the agent only.
Does Operate Kubernetes 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 Kubernetes 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 Kubernetes Toolchain use?
Operate Kubernetes 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 Kubernetes Toolchain use?
About 898 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 604 tokens, read only when the agent opens those files.
What are the alternatives to Operate Kubernetes Toolchain?
Skills that share tags, products or a category with Operate Kubernetes Toolchain: Container Security (hardw00t/ai-security-arsenal, 105 stars), Performing Container Security Scanning With Trivy (mukul975/Anthropic-Cybersecurity-Skills, 34k stars), Cloud Audit (CommonHuman-Lab/nyxstrike, 157 stars) and Container Security Hardening (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Operate Kubernetes 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.