dns-management

dns-management is a skill for Claude Code, Codex from aj-geddes/useful-ai-prompts. It costs 21 tokens per session (586 once invoked), scanned A, original, MIT.

A guide to managing DNS records, which connect domain names to servers, and routing traffic between services. It covers health checks, geographic routing, failover, and multi-region setups.

In plain words
What is it for?
Use it to configure Route 53, Azure DNS, or Cloudflare for traffic routing, disaster recovery, CDN integration, and zero-downtime migrations.
Why use it?
It helps keep applications reachable when a server or region fails and supports controlled traffic changes during migrations or outages.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to configure Route 53, Azure DNS, or Cloudflare for traffic routing, disaster recovery, CDN integration, and zero-downtime migrations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aj-geddes/useful-ai-prompts/dns-management
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.

Any agent
npx skills add aj-geddes/useful-ai-prompts --skill dns-management
Clone the repo
git clone --depth 1 https://github.com/aj-geddes/useful-ai-prompts

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 dns-management

README.md
[![agentmods](https://agentmods.dev/badge/skills/aj-geddes/useful-ai-prompts/dns-management/github.svg)](https://agentmods.dev/skills/aj-geddes/useful-ai-prompts/dns-management)
Your own site
<a href="https://agentmods.dev/skills/aj-geddes/useful-ai-prompts/dns-management"><img src="https://agentmods.dev/badge/skills/aj-geddes/useful-ai-prompts/dns-management/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dns-management

Your own site · 80×15
<a href="https://agentmods.dev/skills/aj-geddes/useful-ai-prompts/dns-management"><img src="https://agentmods.dev/badge/skills/aj-geddes/useful-ai-prompts/dns-management.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 586 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket warn 16 Sept 2026
  • Snyk pass 16 Sept 2026
How audits are shown
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 5.1 $0.00021 $0.00586
Opus 5.5 $0.00008 $0.00234
Sonnet 5.5 $0.00004 $0.00117
Haiku 4.5 $0.00002 $0.00059

Measured 2mo ago against content hash ce5e21a3423e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dns-management 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate-config.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.

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.

skills/dns-management/SKILL.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DNS Management

Table of Contents

Overview

Implement DNS management strategies for traffic routing, failover, geo-routing, and high availability using Route53, Azure DNS, or CloudFlare.

When to Use

  • Domain management and routing
  • Failover and disaster recovery
  • Geographic load balancing
  • Multi-region deployments
  • DNS-based traffic management
  • CDN integration
  • Health check routing
  • Zero-downtime migrations

Quick Start

Minimal working example:

# route53-setup.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: route53-config
  namespace: operations
data:
  setup-dns.sh: |
    #!/bin/bash
    set -euo pipefail

    DOMAIN="myapp.com"
    HOSTED_ZONE_ID="Z1234567890ABC"
    PRIMARY_ENDPOINT="myapp-primary.example.com"
    SECONDARY_ENDPOINT="myapp-secondary.example.com"

    echo "Setting up Route53 DNS for $DOMAIN"

    # Create health check for primary
    PRIMARY_HEALTH=$(aws route53 create-health-check \
      --health-check-config '{
        "Type": "HTTPS",
        "ResourcePath": "/health",
        "FullyQualifiedDomainName": "'${PRIMARY_ENDPOINT}'",
        "Port": 443,
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Guide Contents
AWS Route53 Configuration AWS Route53 Configuration
DNS Failover Script DNS Failover Script
CloudFlare DNS Configuration CloudFlare DNS Configuration
DNS Monitoring and Validation DNS Monitoring and Validation

Best Practices

✅ DO

  • Use health checks with failover
  • Set appropriate TTL values
  • Implement geolocation routing
  • Use weighted routing for canary
  • Monitor DNS resolution
  • Document DNS changes
  • Test failover procedures
  • Use DNS DNSSEC

Read the full file on GitHub · 100 lines

Files

What ships with it

6 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. 2mo ago First seen · 100 lines · 21 tokens per session scan A ce5e21a3423e

Subscribe to this mod's changes

dns-management is a skill published in the GitHub repository aj-geddes/useful-ai-prompts (376 stars, last pushed 8mo ago), licensed MIT. It adds 21 tokens to every session and 586 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.

Related

dns-management compared with skills from other repositories

dns-management next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
dns-managementaj-geddes/useful-ai-promptsSkill3768mo agoMITA21Claude Code, Codex
gke-compute-classesgoogle/skillsSkill22kyesterdayApache-2.0A83Claude Code, Codex
gke-reliabilitygoogle/skillsSkill22kyesterdayApache-2.0A85Claude Code, Codex
gke-workload-securitygoogle/skillsSkill22kyesterdayApache-2.0A171Claude Code, Codex
cloud-architectJeffallan/claude-skillsSkill12k7d agoMITA71Claude Code
nemo-automodel-launcher-configNVIDIA/skillsSkill3.9kyesterdayApache-2.0A30Claude Code
azure-mgmt-botservice-dotnetmicrosoft/skillsSkill3.2kyesterdayMITA78Claude Code