Prepare an unsigned Sui transaction where the user signs as sender/recipient and the configured sponsor pays gas plus the 1 SUI mint fee.
AI agents use prepare_sponsored_mint to commit financial operations through Sui MCP SHIT Minter — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool prepares a transaction that commits financial obligations — specifically a 1 SUI mint fee paid by a sponsor. Even though it only prepares (unsigned) the transaction, it initiates a financial flow on the Sui blockchain involving real token minting costs. The most severe applicable category is Financial.
From the tool's definition sponsor pays gas plus the 1 SUI mint fee
Attacks that exploit this kind of access
Prepare an unsigned Sui transaction where the user signs as sender/recipient and the configured sponsor pays gas plus the 1 SUI mint fee. It is categorised as a Financial tool in the Sui MCP SHIT Minter MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Sui MCP SHIT Minter MCP server in PolicyLayer and add a rule for prepare_sponsored_mint: 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 Sui MCP SHIT Minter. Nothing to install.
prepare_sponsored_mint 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_sponsored_mint 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_sponsored_mint. 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_sponsored_mint is provided by the Sui MCP SHIT Minter MCP server (nomirizky55/shit-sui-mcp2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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