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sg-gov-container-security

sg-gov-container-security is a skill for Claude Code from kyleoliveiro/sg-gov-skills. It costs 192 tokens per session (3,215 once invoked), scanned A, original, MIT.

A security guide for building and running software containers under Singapore's ICT&SS Policy Reform. Containers package an application and its dependencies so it can run consistently, often through Docker or Kubernetes.

In plain words
What is it for?
Use it when reviewing Dockerfiles, Kubernetes or Helm configuration, container build pipelines, image registries, or container runtime settings.
Why use it?
It brings security checks to the container build, software supply chain, registry, and runtime instead of treating deployment configuration as separate from application security.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the cybersecurity plugin — 10 skills shipped together

not rated 17repo 7d ago A scan 192 tokens original MIT

Good fit Use it when reviewing Dockerfiles, Kubernetes or Helm configuration, container build pipelines, image registries, or container runtime settings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kyleoliveiro/sg-gov-skills/sg-gov-container-security
View source ↗ kyleoliveiro/sg-gov-skills
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add kyleoliveiro/sg-gov-skills --skill sg-gov-container-security
Clone the repo
git clone --depth 1 https://github.com/kyleoliveiro/sg-gov-skills

Made for: Claude Code.

Or install cybersecurity, the plugin that ships this one along with the rest of its 10 skills.

Wrote 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.

agentmods badge for sg-gov-container-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/kyleoliveiro/sg-gov-skills/sg-gov-container-security/github.svg)](https://agentmods.dev/skills/kyleoliveiro/sg-gov-skills/sg-gov-container-security)
Your own site
<a href="https://agentmods.dev/skills/kyleoliveiro/sg-gov-skills/sg-gov-container-security"><img src="https://agentmods.dev/badge/skills/kyleoliveiro/sg-gov-skills/sg-gov-container-security/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.

agentmods 80×15 button for sg-gov-container-security

Your own site · 80×15
<a href="https://agentmods.dev/skills/kyleoliveiro/sg-gov-skills/sg-gov-container-security"><img src="https://agentmods.dev/badge/skills/kyleoliveiro/sg-gov-skills/sg-gov-container-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 192 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,215 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00192 $0.03215
Opus 5.5 $0.00077 $0.01286
Sonnet 5.5 $0.00038 $0.00643
Haiku 4.5 $0.00019 $0.00321

Measured 7d ago against content hash eb6a34d79add, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sg-gov-container-security scanned grade A with 0 findings 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 7d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/sg-gov-container-security/SKILL.md · 206 lines

How it starts

The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sg-gov-container-security: CS controls for SG government containers

You are building or auditing a containerised workload against the 11 Container Security controls (CS-1..CS-11) of the ICT&SS Policy Reform Cybersecurity Control Catalog. The family's scope is securing container building, distribution, and deployment. Almost all of these are configuration in a Dockerfile or an orchestrator manifest, and an audit or VAPT of a container platform checks them.

Source and currency

Control text in this skill and references/cs-controls.md is embedded from info.standards.tech.gov.sg as of 2026-07-22. The standards iterate actively. For any compliance-critical decision, verify against the live page:

Machine-readable OSCAL: https://github.com/GovtechSG/tech-standards. Useful for tooling, but it lags the site; the site is authoritative.

Reference files

  • references/cs-controls.md — full text of all 11 controls (statement, recommendations, risk statement, the CS-7 parameter) plus cross-family notes. Read it when you need exact wording, e.g. for an audit response or SSP documentation.
  • references/platform-recipes.md — concrete Dockerfile, Kubernetes, and CI recipes per control, open-source-first (Trivy, Grype, Hadolint, Falco, Cosign) with cloud-native equivalents. Read it when configuring a build or cluster.

Before you start: find the SSP

Every agency system has a System Security Plan (SSP) that selects which controls apply at which level and sets parameter values. One CS control carries an agency-defined parameter, which the catalog leaves blank:

Control Parameter What the SSP defines
CS-7 cs-7_prm_1 The location where container image scanning occurs (e.g. "CI pipeline on push, plus continuous registry scanning")

Ask for the project's SSP (or the agency ISO/CISO contact) and use its value. Do not invent the scan location; write what the SSP says. If no SSP exists yet, flag that first; the sibling skill sg-gov-ssp-navigator determines which SSP applies and at which level each CS control sits for this system.

Read the full file on GitHub · 206 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 7d ago First seen · 206 lines · 192 tokens per session scan A eb6a34d79add

Subscribe to this mod's changes

sg-gov-container-security is a skill published in the GitHub repository kyleoliveiro/sg-gov-skills (17 stars, last pushed 7d ago), licensed MIT. It adds 192 tokens to every session and 3,215 once invoked, about $0.0008 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-03.

ContainersDevOps and cloudSecurity
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