Open a streaming storage deal for a stored object.
AI agents use storage_open_deal to commit financial operations through Tenzro Ledger MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Opening a storage deal on a ledger/payments platform constitutes a financial commitment. The term 'deal' in the context of a ledger MCP server (which explicitly includes payments, staking, and bridges) strongly implies a contractual or financial obligation being created. This is more severe than a simple Write operation because it commits financial resources.
From the tool's definition 'Open a streaming storage deal' — initiates a financial deal/contract for storage services, implying a financial commitment or obligation
Attacks that exploit this kind of access
Open a streaming storage deal for a stored object. It is categorised as a Financial tool in the Tenzro Ledger MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for storage_open_deal: 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 Tenzro Ledger MCP. Nothing to install.
storage_open_deal 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 storage_open_deal 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 storage_open_deal. 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.
storage_open_deal is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). 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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