Home / kyleoliveiro / sg-gov-skills · GitHub

sg-gov-network-security SKILL.md skillA

sg-gov-network-security from kyleoliveiro/sg-gov-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add kyleoliveiro/sg-gov-skills/sg-gov-network-security@git:20261027.6f21efa

Pins git:20261027.6f21efa in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: kyleoliveiro/sg-gov-skills
Path: skills/sg-gov-network-security/SKILL.md
Versions recorded: 1
Latest version: git:20261027.6f21efa, committed Oct 27, 2026
Size: 11,658 bytes
Repository stars: 17
License: MIT

Design or audit a system's network boundaries against the Singapore Government's ICT&SS Policy Reform (IM8 successor) Network Security controls (NS-1..NS-11): VPC/VNet segmentation and tiered subnets, access restrictions on CSP resources outside the virtual network, deny-by-default security groups and egress allowlisting, private inter-network connectivity (PrivateLink, peering, Transit Gateway), WAF/DDoS/CDN filtering, valid auto-renewed TLS certificates, authenticated and encrypted…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# sg-gov-network-security: NS controls for SG government systems

You are designing or auditing the **network boundaries** of a Singapore government
system against the ICT&SS Policy Reform **Network Security family (NS-1..NS-11)**. The
family's scope is *securing the network boundaries of a system*: how the network is
segmented, what may talk to what, how the edge is filtered, how services and sites
connect privately, and how changes and intrusions are detected. Almost all of it is
cloud/IaC configuration (security groups, endpoints, certificates, alert rules), and a
VAPT or CSPM scan checks it.

Two principles run through the family:

1. **Deny by default applies across the family, not just in NS-3.** NS-3 states it, but
   NS-1 segmentation, NS-2 resource policies, NS-9 private connectivity, and CS-9's
   private cluster API apply the same idea at different interfaces. If an audit finds one
   `0.0.0.0/0` rule, check where else the default was left open, including **egress**,
   which teams often miss.
2. **Traffic between trusted parts never crosses the internet.** Private-to-private
   (NS-4), service-to-service (NS-7), and cloud-to-on-prem (NS-8) traffic all must move
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add kyleoliveiro/sg-gov-skills/sg-gov-network-security@sha256:d9ceae1012a30184

The line at the top of this page pins the label git:20261027.6f21efa, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_uulwpqn5fmsw5nuk.svg)](https://markdownregistry.com/a/art_uulwpqn5fmsw5nuk)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 27, 2026.

version	committed	commit	size	audit
git:20261027.6f21efa latest	2026-10-27	6f21efa	11,658 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (11658 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

kyleoliveiro/sg-gov-skills · 17 stars · license MIT · pushed 2026-11-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_uulwpqn5fmsw5nuk
GET https://markdownregistry.com/api/v1/resolve?ref=kyleoliveiro/sg-gov-skills/sg-gov-network-security
GET https://markdownregistry.com/api/v1/blob/d9ceae1012a301849c24735fa725149ad2c7cbae8a29f6d4c7fa34bf52bab498

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.