kamino_repay

THE RISK

Critical Risk

Why kamino_repay needs a policy

Repaying borrowed debt on a DeFi lending protocol (Kamino K-Lend) constitutes a financial operation that moves cryptocurrency assets to settle financial obligations. This falls squarely in the Financial category. Misuse could result in unintended repayment of loans, moving significant crypto funds.

From the tool's definition kamino_repay: 'Repay borrowed debt on Kamino K-Lend' — involves repaying crypto debt obligations on a DeFi lending protocol, committing financial transactions on-chain

Documented attack patterns abuse exactly the kind of access kamino_repay gives an agent:

POLICY

How to control kamino_repay

PolicyLayer is an MCP gateway — it sits between your AI agents and Waiaas, and nothing reaches the server without passing your rules. This is the rule we recommend for kamino_repay:

policy.json

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

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

Create a free account and register Waiaas — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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Financial dex_swap Execute DEX swap via D Financial execute_action Execute a DeFi action (swap, bridge, stake, unstake, lend_supply, lend_borrow, lend_repay, Financial aave_withdraw Withdraw supplied collateral from Aave V3 lending pool. Use amount= Financial drift_withdraw_margin Withdraw excess collateral from Drift V2 margin account to wallet Financial hl_sub_transfer Transfer USDC between master account and sub-account Financial hl_transfer_usdc Transfer USDC between Spot and Perp accounts on Hyperliquid Financial kamino_withdraw Withdraw supplied collateral from Kamino K-Lend. Use amount= Financial transfer_nft transfer_nft

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Go deeper

Critical-risk tools in Waiaas → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about kamino_repay

What does the kamino_repay tool do? +

Repay borrowed debt on Kamino K-Lend. Use amount=. It is categorised as a Financial tool in the Waiaas MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on kamino_repay? +

Register the Waiaas MCP server in PolicyLayer and add a rule for kamino_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 Waiaas. Nothing to install.

What risk level is kamino_repay? +

kamino_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 kamino_repay? +

Yes. Add a rate_limit block to the kamino_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 kamino_repay completely? +

Set action: deny in the PolicyLayer policy for kamino_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 kamino_repay? +

kamino_repay is provided by the Waiaas MCP server (minhoyoo-iotrust/waiaas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Waiaas tool call.

Start from Waiaas, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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