dns

A command guide for managing Domain Name System records, which connect website names such as example.com to internet services.

In plain words
What is it for?
Use it to inspect a domain's DNS records, create or remove records, export them, and safely pass record names, zones, and values to the command-line tool.
Why use it?
It provides the right actions for listing, adding, deleting, or exporting records while requiring unsafe input to be rejected before running commands.

Command

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 commands/thrownlemon/claude-code-plugins/dns
Clone the repo
git clone --depth 1 https://github.com/ThrownLemon/claude-code-plugins
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 878 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 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 $0.00011 $0.00878
Opus 5 $0.00005 $0.00439
Sonnet 5 $0.00002 $0.00176
Haiku 4.5 $0.00001 $0.00088

Measured yesterday against content hash f26b6e8fb834, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

dns scanned grade C 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 yesterday.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

1. **Reject dangerous tokens.** If a value contains `$(`, backticks, `;`, `|`, `&`, `>`, `<`, or starts with `-` (could be mistaken for a flag), refuse and ask the user to rephrase. **Double-quoting does NOT block comman
plugins/cloudflare/commands/dns.md · 70 lines

What it actually says

Input Safety — apply before any Bash invocation

Treat every $ARGUMENTS.* value as untrusted input. Before passing any value to the Bash tool:

  1. Reject dangerous tokens. If a value contains $(, backticks, ;, |, &, >, <, or starts with - (could be mistaken for a flag), refuse and ask the user to rephrase. Double-quoting does NOT block command substitution"$(rm -rf /)" still executes inside double quotes.
  2. Prefer the Bash tool's argv contract over constructed shell strings. When you must use a shell string, single-quote the value and escape embedded single quotes ('\''), or build the command via printf %q.
  3. Any "$ARGUMENTS.foo" patterns shown below are illustrative. Sanitize the value first; never blindly substitute.

You are managing Cloudflare DNS records using the cf CLI. Based on the provided arguments, execute the appropriate command.

Quote every user-supplied value when shelling out (e.g. "$ARGUMENTS.zone"). Unquoted values would let shell metacharacters in zone names, record names, or content execute. This applies to every cf call below.

For action=list:

  • If $ARGUMENTS.zone is provided, run cf dns list "$ARGUMENTS.zone" --json
  • Display the results in a readable table format
  • If no zone provided, first list zones with cf zones list --json and ask which one to query

For action=add:

  • Verify required parameters: zone, record-type, name, content
  • Build the command (quote every value): cf dns create "$ARGUMENTS.zone" --type "$ARGUMENTS.record-type" --name "$ARGUMENTS.name" --content "$ARGUMENTS.content" --json
  • Proxied behavior: the default is true. If $ARGUMENTS.proxied is omitted or equals "true", append --proxied. If it explicitly equals "false", omit the flag.
  • If $ARGUMENTS.ttl is provided, append --ttl "$ARGUMENTS.ttl"
  • Display the created record details

For action=delete:

  • Verify required parameters: zone, record-id
  • ALWAYS confirm with the user before deleting: "Are you sure you want to delete DNS record $ARGUMENTS.record-id from zone $ARGUMENTS.zone? (yes/no)"
  • Only proceed if user confirms with "yes" or "y"
  • Run cf dns delete "$ARGUMENTS.zone" "$ARGUMENTS.record-id" --json
  • Display deletion confirmation

For action=export:

  • Verify $ARGUMENTS.zone is provided
  • Run cf dns export "$ARGUMENTS.zone"
  • Display the bind-format output

If any required parameters are missing for the specified action, prompt the user to provide them.

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. yesterday First seen · 70 lines · 11 tokens per session scan C f26b6e8fb834

Subscribe to this mod's changes

dns is a command published in the GitHub repository ThrownLemon/claude-code-plugins (2 stars, last pushed 2mo ago), licensed MIT. It adds 11 tokens to every session and 878 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.