crc-post-setup-config

crc-post-setup-config is a skill for Claude Code, Codex from rhtevan/agentfs. It costs 17 tokens per session (1,424 once invoked), scanned A, original, Apache-2.0.

A post-setup configuration tool for OpenShift Local, also called CRC, which runs an OpenShift cluster locally for development. It reapplies selected cluster settings after the cluster is deleted and started again.

In plain words
What is it for?
Use it to enable cluster monitoring, set Prometheus retention, adjust system resource reservations, and silence the alert about missing Alertmanager receivers on a local CRC cluster.
Why use it?
It removes the need to repeat the same monitoring, resource-reservation, and alert-silencing changes after each CRC reset. These settings address default development-cluster limitations and expected alerts.

Skill for Claude CodeCodex

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/rhtevan/agentfs/crc-post-setup-config
Any agent
npx skills add rhtevan/agentfs --skill crc-post-setup-config
Clone the repo
git clone --depth 1 https://github.com/rhtevan/agentfs

Made for: Claude Code, Codex.

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 crc-post-setup-config

README.md
[![agentmods](https://agentmods.dev/badge/skills/rhtevan/agentfs/crc-post-setup-config.svg)](https://agentmods.dev/skills/rhtevan/agentfs/crc-post-setup-config)
Your own site
<a href="https://agentmods.dev/skills/rhtevan/agentfs/crc-post-setup-config"><img src="https://agentmods.dev/badge/skills/rhtevan/agentfs/crc-post-setup-config.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,424 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00017 $0.01424
Opus 5 $0.00009 $0.00712
Sonnet 5 $0.00003 $0.00285
Haiku 4.5 $0.00002 $0.00142

Measured 4d ago against content hash 720d49f2f6d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

crc-post-setup-config scanned grade A with 1 finding 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 4d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (apply-monitoring-config.sh, apply-system-reserved.sh, silence-alerts.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Active silence visible via `oc exec -n openshift-monitoring alertmanager-main-0 -c alertmanager -- curl -s 'http://localhost:9093/api/v2/silences'`
skills/crc-post-setup-config/SKILL.md · 125 lines

How it starts

The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CRC Post-Setup Configuration

Apply post-setup configuration to an OpenShift Local (CRC) cluster. This skill combines all one-time tuning that must be re-applied after every crc delete && crc start cycle.

What It Configures

Area What Why
Cluster Monitoring Enables the monitoring stack with aggressive Prometheus retention (24h / 4GB) CRC disables monitoring by default; without retention limits Prometheus fills the VM disk
System Reserved Resources Overrides kubelet --system-reserved to memory=1Gi, cpu=500m, ephemeral-storage=1Gi via a MachineConfig CRC's default reservation (350Mi memory) is too low and triggers the SystemMemoryExceedsReservation alert
Alert Silences Silences AlertmanagerReceiversNotConfigured for 1 year Expected on a dev cluster with no external notification receivers configured

Steps

Part 1 — Enable Cluster Monitoring

  1. Verify the cluster is reachable

    oc whoami
    oc cluster-info
    
  2. Set the CRC config flag This persists across crc delete + crc start, so a fresh cluster will also enable monitoring:

    crc config set enable-cluster-monitoring true
    
  3. Remove the monitoring overrides from ClusterVersion CRC disables monitoring by adding unmanaged: true overrides to the ClusterVersion resource for the cluster-monitoring-operator Deployment and the monitoring ClusterOperator. Remove only these two entries while keeping all other overrides intact.

    • Fetch the current overrides:
      oc get clusterversion version -o jsonpath='{.spec.overrides}' | python3 -m json.tool
      
    • Build a new overrides list that excludes the two monitoring entries:
      • {"kind":"Deployment","name":"cluster-monitoring-operator","namespace":"openshift-monitoring"}
      • {"kind":"ClusterOperator","name":"monitoring"}
    • Patch the ClusterVersion with the filtered list:
      oc patch clusterversion version --type=json \
        -p '[{"op":"replace","path":"/spec/overrides","value": <filtered list> }]'
      
    • If the overrides array is already free of monitoring entries, skip this step.

Read the full file on GitHub · 125 lines

Files

What ships with it

4 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. 4d ago First seen · 125 lines · 17 tokens per session scan A 720d49f2f6d5

Subscribe to this mod's changes

crc-post-setup-config is a skill published in the GitHub repository rhtevan/agentfs (2 stars, last pushed 2d ago), licensed Apache-2.0. It adds 17 tokens to every session and 1,424 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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