dns_add

SERVERYaver SOURCEyaver-cli

Medium RISK CLASS

Category Write

Parameters 74 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-kivanccakmak-yaver/dns-add.md

WHAT IT DOES

What dns_add does on Yaver

AI agents use dns_add to create or update resources in Yaver, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Yaver environment.

Parameter	Type	Required	Description
`ttl`	integer	—	TTL seconds. 0 = auto.
`name`	string	Yes	Record name relative to zone ("@" or "sub")
`type`	string	Yes
`zone`	string	Yes	Apex domain — e.g. myapp.com
`content`	string	Yes	IP for A/AAAA, hostname for CNAME, value for TXT
`proxied`	boolean	—	Cloudflare-only: route through CF proxy.
`provider`	string	—	Force a provider. Default auto.

Parameters from the server's own tool schema.

RISK

Why dns_add is rated Medium

Creates DNS records with lasting effects; reversible but high-impact for domain configuration and potential security implications.

From the tool's definition Create a DNS record at the user's DNS provider. Uses Cloudflare API.

Risk signalsAccepts raw HTML/template content (content)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs dns_add safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Yaver, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For dns_add, this is the rule to start with:

dns_add Rate-limited

dns_add stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "dns_add": {
      "limits": [
        {
          "counter": "dns_add_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Yaver, apply this rule, and every dns_add call is checked against it from then on.

FAQ

Questions about dns_add

What does the dns_add tool do? +

Create a DNS record at the user's DNS provider. Uses Cloudflare API when CF_API_TOKEN is set; otherwise returns paste-at-your-registrar instructions verbatim. Owner-only; never reachable from a guest token. Returns {ok, recordId, manual, instruction?}. It is categorised as a Write tool in the Yaver MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does dns_add accept? +

dns_add accepts 7 parameters: ttl, name, type, zone, content, proxied, provider. Required: name, type, zone, content. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on dns_add? +

Register the Yaver MCP server in PolicyLayer and add a rule for dns_add: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Yaver. Nothing to install.

What risk level is dns_add? +

dns_add is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit dns_add? +

Yes. Add a rate_limit block to the dns_add rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block dns_add completely? +

Set action: deny in the PolicyLayer policy for dns_add. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides dns_add? +

dns_add is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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