cert-manager-knowledge-patch

A cert-manager reference skill supplies guidance for cert-manager, a Kubernetes tool that obtains and renews TLS certificates.

In plain words
What is it for?
Use it when handling upgrades, certificate issuance, ACME validation, DNS solvers, Ingress or Gateway integration, Helm settings, metrics, permissions, or issuer integrations.
Why use it?
It helps avoid mistakes caused by differences between software patch versions, platform versions, configuration, and certificate settings.

Skill for Claude CodeCodex

Part of the knowledge-patch plugin — 57 skills, 1 hook shipped together

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.

agentmods
npx agentmods add skills/nevaberry/nevaberry-plugins/cert-manager-knowledge-patch
Any agent
npx skills add Nevaberry/nevaberry-plugins --skill cert-manager-knowledge-patch
Clone the repo
git clone --depth 1 https://github.com/Nevaberry/nevaberry-plugins

Made for: Claude Code, Codex.

Or install knowledge-patch, the plugin that ships this one along with the rest of its 57 skills, 1 hook.

Per session 9 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,552 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00009 $0.01552
Opus 5 $0.00005 $0.00776
Sonnet 5 $0.00002 $0.00310
Haiku 4.5 $0.00001 $0.00155

Measured 3d ago against content hash 11d24357323e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cert-manager-knowledge-patch 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 3d 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.

plugins/knowledge-patch/patches-claude/cert-manager-knowledge-patch/SKILL.md · 194 lines

How it starts

The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.

cert-manager Knowledge Patch

When to use

Load this skill for cert-manager work involving upgrades, Certificate behavior, ACME solvers, issuers, Gateway or Ingress integration, Helm configuration, metrics, RBAC, or platform compatibility.

First establish the installed cert-manager patch release, chart values, Kubernetes or OpenShift version, enabled feature gates, and relevant issuer and Certificate manifests. Patch-level fixes matter: do not assume every patch in a minor line has the same behavior.

Reference index

Reference Topics
Upgrades and support Upgrade defaults, removals, required patch releases, support and platform policy
Certificates and issuance Certificate fields, renewal, keystores, validation, output, reconciliation
ACME and DNS solvers HTTP-01, DNS-01, profiles, solver configuration, retry behavior
Gateway, Ingress, and shim ListenerSet, Gateway listeners, generated Certificates, annotations
Helm, operations, and security Chart values, Pod settings, NetworkPolicy, RBAC, namespace scope
Issuers, integrations, and API clients Vault, Venafi, cainjector, issuer APIs, apply clients
Observability and reliability Metrics, logging, backoff, recovery, diagnostics

Upgrade first: behavior changes and removals

Preserve private keys explicitly when required

The default Certificate.spec.privateKey.rotationPolicy is Always. Before an upgrade, set Never on Certificates that must retain their existing key:

spec:
  privateKey:
    rotationPolicy: Never

The feature gate that once disabled the Always default is no longer configurable. Per-Certificate policy is the supported control.

Read the full file on GitHub · 194 lines

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. 3d ago First seen · 194 lines · 9 tokens per session scan A 11d24357323e

Subscribe to this mod's changes

cert-manager-knowledge-patch is a skill published in the GitHub repository Nevaberry/nevaberry-plugins (24 stars, last pushed 6d ago), licensed MIT. It adds 9 tokens to every session and 1,552 once invoked, about $0.0000 per session on Opus 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 2026-08-30.

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