sitebay_add_custom_hostname · SiteBay MCP Server MCP

WHAT IT DOES

What sitebay_add_custom_hostname does on SiteBay MCP Server

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

WHY IT NEEDS A POLICY

Why sitebay_add_custom_hostname needs a policy

This tool modifies site configuration by attaching a custom domain, which is a Write-category action (creates or modifies data reversibly). The severity is high because misconfiguration could redirect legitimate traffic to wrong destinations or enable phishing attacks if an AI agent adds a malicious domain. The action is reversible (domains can be detached), so it does not qualify as Destructive.

From the tool's definition The tool 'sitebay_add_custom_hostname' is described as 'Attach a custom domain...to a site via Cloudflare for SaaS', which performs a reversible configuration change that creates/modifies DNS or domain routing settings.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sitebay_add_custom_hostname Rate-limited

sitebay_add_custom_hostname 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": {
    "sitebay_add_custom_hostname": {
      "limits": [
        {
          "counter": "sitebay_add_custom_hostname_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches SiteBay MCP Server, so you can run agents against it safely.

FAQ

Questions about sitebay_add_custom_hostname

What does the sitebay_add_custom_hostname tool do? +

Attach a custom domain (e.g. shop.theirclient.com) to a site via Cloudflare for SaaS. It is categorised as a Write tool in the SiteBay MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on sitebay_add_custom_hostname? +

Register the SiteBay MCP Server MCP server in PolicyLayer and add a rule for sitebay_add_custom_hostname: 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 SiteBay MCP Server. Nothing to install.

What risk level is sitebay_add_custom_hostname? +

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

Can I rate-limit sitebay_add_custom_hostname? +

Yes. Add a rate_limit block to the sitebay_add_custom_hostname 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 sitebay_add_custom_hostname completely? +

Set action: deny in the PolicyLayer policy for sitebay_add_custom_hostname. 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 sitebay_add_custom_hostname? +

sitebay_add_custom_hostname is provided by the SiteBay MCP Server MCP server (sitebay/sitebay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.