cert-manager-issuer-trust-review SKILL.md skillA

cert-manager-issuer-trust-review from vincentchuwaichow/vanguard-frontier-agentic is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add vincentchuwaichow/vanguard-frontier-agentic/cert-manager-issuer-trust-review@v0.1.0

Pins v0.1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
vincentchuwaichow/vanguard-frontier-agentic
Path
skills/cert-manager/cert-manager-issuer-trust-review/SKILL.md
Versions recorded
4
Latest version
v0.1.0, committed Jul 31, 2026
First version recorded
May 2, 2026
Size
3,273 bytes
Repository stars
24
License
Apache-2.0

Use this skill when reviewing cert-manager PKI configuration for Kubernetes clusters. Trigger when the user asks about Issuer or ClusterIssuer scope, CertificateRequestPolicy coverage, certificate SAN or duration risks, trust-manager bundle distribution, SPIFFE mesh CA integration, cert-manager webhook health, or cloud CA authentication method.

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

# cert-manager Issuer Trust Review

## Purpose

Review cert-manager Issuer and ClusterIssuer scope, CertificateRequestPolicy (approver-policy) authorization coverage, certificate SAN wildcard and duration risks, trust-manager CA bundle distribution blast radius, SPIFFE/service-mesh CA integration, and cloud-backed CA authentication method. cert-manager's security posture depends on whether namespace-scoped request authorization exists — without CertificateRequestPolicy, any namespace can issue a certificate for any DNS name from a shared ClusterIssuer.

## Lean operating rules

- Prefer live evidence (`kubectl get clusterissuer,issuer -A -o yaml`, `kubectl get certificaterequestpolicy -o yaml`, `kubectl get certificate -A -o yaml`) when the active client exposes it; otherwise fall back to official cert-manager documentation and sanitized YAML from the user.
- Separate confirmed facts from inference. If CertificateRequestPolicy deployment, certificate health, or trust-manager bundle scope was not directly queried, say so.
- Treat no CertificateRequestPolicy deployed cluster-wide as a critical finding — any cert request in any namespace is auto-approved against any ClusterIssuer.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add vincentchuwaichow/vanguard-frontier-agentic/cert-manager-issuer-trust-review@sha256:e6215396dcf6e201

The line at the top of this page pins the label v0.1.0, 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 badge

[![mdr](https://markdownregistry.com/badge/art_7blh7zozrodo722c.svg)](https://markdownregistry.com/a/art_7blh7zozrodo722c)

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

Versions

The registry has recorded 4 versions of this file, between May 2, 2026 and Jul 31, 2026, about one every 30 days.

versioncommittedcommitsizeaudit
v0.1.0 latest2026-07-31 e5f8521 3,273 BA view · diff
v0.1.02026-05-05 d429f6f 3,263 BA view · diff
v0.1.02026-05-05 8361fc7 3,218 BA view · diff
v0.1.02026-05-02 c40aadb 3,188 BA 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 (3273 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

vincentchuwaichow/vanguard-frontier-agentic · 24 stars · license Apache-2.0 · pushed 2026-10-20 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_7blh7zozrodo722c
GET https://markdownregistry.com/api/v1/resolve?ref=vincentchuwaichow/vanguard-frontier-agentic/cert-manager-issuer-trust-review
GET https://markdownregistry.com/api/v1/blob/e6215396dcf6e201a71abcf36873bac987d6fa422dd3643a5e1fd2fd1ea1efa8

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.

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