Look up a compute rental by its id.
AI agents call compute_get_rental to retrieve information from Tenzro Ledger MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about a compute rental record identified by an ID. The verb 'look up' is a read-only operation with no side effects. It does not create, modify, delete, execute code, or move money. The blast radius of misuse is minimal—an attacker could only access rental information they query for, not modify systems or access unauthorized data beyond normal read scope.
From the tool's definition Tool name 'compute_get_rental' and description 'Look up a compute rental by its id' indicate a query/retrieval operation with no data modification.
Attacks that exploit this kind of access
Look up a compute rental by its id. It is categorised as a Read tool in the Tenzro Ledger MCP MCP Server, which means it retrieves data without modifying state.
Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for compute_get_rental: 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.
compute_get_rental is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the compute_get_rental 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 compute_get_rental. 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.
compute_get_rental 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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