This record as markdown: /tools/cbrown35-20i-mcp/transfer-domain.md
What transfer_domain does on 20i MCP Server
AI agents use transfer_domain to create or update resources in 20i MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 20i MCP Server environment.
Why transfer_domain is rated Medium
Transferring a domain moves it into a new registrar account, which is a significant write/modification action with lasting consequences (changes registrar control, may lock the domain during transfer, incurs fees). It is not purely destructive (the domain still exists) but is high severity due to the difficulty of reversal and potential financial implications (transfer fees).
From the tool's definition "Transfer a domain to your 20i account" — initiates a domain transfer operation
Attacks that exploit this kind of access
The rule that runs transfer_domain safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 20i MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For transfer_domain, this is the rule to start with:
transfer_domain 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.
The button opens the PolicyLayer dashboard: create your workspace, connect 20i MCP Server, apply this rule, and every transfer_domain call is checked against it from then on.
Questions about transfer_domain
Transfer a domain to your 20i account. It is categorised as a Write tool in the 20i MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the 20i MCP Server MCP server in PolicyLayer and add a rule for transfer_domain: 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 20i MCP Server. Nothing to install.
transfer_domain is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the transfer_domain 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.
Set action: deny in the PolicyLayer policy for transfer_domain. 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.
transfer_domain is provided by the 20i MCP Server MCP server (cbrown35/20i-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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