moolah_repay · Justlend MCP: Risk & Policy

WHAT IT DOES

What moolah_repay does on Justlend

AI agents use moolah_repay to commit financial operations through Justlend — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why moolah_repay needs a policy

This tool repays a loan on a DeFi lending protocol (JustLend DAO on TRON), which constitutes a financial operation involving transfer of crypto assets to settle a debt obligation. It moves funds on-chain and commits financial obligations, placing it in the Financial category. Misuse could result in unintended asset transfers or repayment of wrong loans.

From the tool's definition Repay a Moolah market loan

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

moolah_repay Approval-gated

Any call to moolah_repay is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "moolah_repay": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Justlend, so you can run agents against it safely.

FAQ

Questions about moolah_repay

What does the moolah_repay tool do? +

Repay a Moolah market loan. It is categorised as a Financial tool in the Justlend MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on moolah_repay? +

Register the Justlend MCP server in PolicyLayer and add a rule for moolah_repay: 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.

What risk level is moolah_repay? +

moolah_repay is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit moolah_repay? +

Yes. Add a rate_limit block to the moolah_repay 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.

How do I block moolah_repay completely? +

Set action: deny in the PolicyLayer policy for moolah_repay. 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.

What MCP server provides moolah_repay? +

moolah_repay 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.