Prepare a native/token transfer and return a preview for user review. After calling this tool, you MUST present the transfer details to the user and wait for their explicit confirmation before calling confirm_token_transfer. Do NOT proceed automatically.
AI agents use prepare_token_transfer to commit financial operations through Usdd Test — usually the final step of a payment, billing, or trading workflow. A call moves real money.
prepare_token_transfer moves real money, and an autonomous agent will call it with the same confidence it calls a search tool. A misread instruction or an injected prompt is all it takes to drain an account or blow a budget.
Attacks that exploit this kind of access
Prepare a native/token transfer and return a preview for user review. After calling this tool, you MUST present the transfer details to the user and wait for their explicit confirmation before calling confirm_token_transfer. Do NOT proceed automatically. It is categorised as a Financial tool in the Usdd Test MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Usdd Test MCP server in PolicyLayer and add a rule for prepare_token_transfer: 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 Usdd Test. Nothing to install.
prepare_token_transfer is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the prepare_token_transfer 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 prepare_token_transfer. 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.
prepare_token_transfer is provided by the Usdd Test MCP server (mcp-server-usdd-test). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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