get_energy_rental_params
Get on-chain energy rental parameters: liquidation threshold, fee ratio, min fee,
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What get_energy_rental_params does on Justlend
AI agents call get_energy_rental_params to retrieve information from Justlend without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_energy_rental_params is rated Low
This tool queries blockchain state to retrieve configuration parameters. It performs no writes, executes no code, transfers no funds, and deletes nothing. The 'get' verb and 'Get on-chain' phrasing confirm it is a read-only operation. Even if accessed by a compromised agent, the worst outcome is information disclosure, which has minimal impact.
From the tool's definition Tool name 'get_energy_rental_params' and description 'Get on-chain energy rental parameters' indicate a retrieval operation with no side effects. Returns read-only data about liquidation thresholds, fee ratios, and minimum fees.
Attacks that exploit this kind of access
The rule that runs get_energy_rental_params safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Justlend, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_energy_rental_params, this is the rule to start with:
get_energy_rental_params is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Justlend, apply this rule, and every get_energy_rental_params call is checked against it from then on.
Questions about get_energy_rental_params
Get on-chain energy rental parameters: liquidation threshold, fee ratio, min fee,. It is categorised as a Read tool in the Justlend MCP Server, which means it retrieves data without modifying state.
Register the Justlend MCP server in PolicyLayer and add a rule for get_energy_rental_params: 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 Justlend. Nothing to install.
get_energy_rental_params 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 get_energy_rental_params 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 get_energy_rental_params. 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.
get_energy_rental_params is provided by the Justlend MCP server (justlend/mcp-server-justlend). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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