review-security-k8s-network SKILL.md skillA
review-security-k8s-network from gke-labs/kube-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add gke-labs/kube-agents/review-security-k8s-network@git:20260521.2bcbdefPins git:20260521.2bcbdef in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- gke-labs/kube-agents
- Path
.agents/skills/review-security-k8s-network/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260521.2bcbdef, committed May 21, 2026
- First version recorded
- May 21, 2026
- Size
- 1,486 bytes
- Repository stars
- 124
- License
- Apache-2.0
Reviews Kubernetes network configurations (NetworkPolicies, Services, Ingress) for isolation and exposure risks.
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
# Task Review Kubernetes network configurations (`NetworkPolicies`, `Services`, `Ingresses`, Service Mesh) for vulnerabilities. # Checks ## 1. Network Isolation - **Default-Deny**: Verify every namespace has a "default-deny" `NetworkPolicy` for *both* Ingress and Egress. - **Egress Neglect**: Flag workloads lacking Egress restrictions (enables data exfiltration/C2). - **Overly Permissive Rules**: Flag broad CIDRs (`0.0.0.0/0`, `::/0`) or empty `podSelector`/`namespaceSelector`. ## 2. Service Exposure - **Accidental Public Exposure**: Flag `LoadBalancer` services lacking internal annotations if meant to be internal. - **NodePort Usage**: Flag `NodePort` usage (bypasses standard protections). - **Sensitive Ports**: Flag exposure of admin/sensitive ports (22, 3389, 2379, 10250). ## 3. Traffic Routing - **Ingress TLS**: Require `tls` block on Ingresses. Flag missing HTTP->HTTPS redirects. - **Endpoint Hijacking**: Flag manual `Endpoints`/`EndpointSlice` resources (risk of malicious external redirect). - **HostNetwork Bypass**: Flag `hostNetwork: true` (bypasses pod network policies). ## 4. Service Mesh - **mTLS Enforcement**: Require `STRICT` mutual TLS via `PeerAuthentication`. …
Read the whole file at its exact version.
How to install
mdr add gke-labs/kube-agents/review-security-k8s-network@sha256:d46e19aa97284c5aThe line at the top of this page pins the label git:20260521.2bcbdef, 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.
[](https://markdownregistry.com/a/art_2znurdfr2qboqdnf)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, all committed on May 21, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260521.2bcbdef latest | 2026-05-21 | 2bcbdef | 1,486 B | A | view · diff |
| git:20260521.27b4bc9 | 2026-05-21 | 27b4bc9 | 1,486 B | A | view · diff |
| git:20260521.94c412d | 2026-05-21 | 94c412d | 2,679 B | A | view · diff |
| git:20260521.61a0697 | 2026-05-21 | 61a0697 | 3,073 B | A | view · diff |
| git:20260521.5d9d65d | 2026-05-21 | 5d9d65d | 1,327 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1486 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
gke-labs/kube-agents · 124 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2znurdfr2qboqdnf GET https://markdownregistry.com/api/v1/resolve?ref=gke-labs/kube-agents/review-security-k8s-network GET https://markdownregistry.com/api/v1/blob/d46e19aa97284c5a55c7f07b779bce193b5458224b921d01e7bbb57f7ed2af4f
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.