granite_liquidate · Stacks AI MCP Server MCP: Risk & Policy

WHAT IT DOES

What granite_liquidate does on Stacks AI MCP Server

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

WHY IT NEEDS A POLICY

Why granite_liquidate needs a policy

This tool executes a DeFi liquidation — a financial operation that forcibly closes another user's borrowing position and transfers their collateral to the liquidator. This directly moves assets/money on-chain in an irreversible way, and misuse could cause significant financial harm to borrowers (loss of collateral) and the protocol.

From the tool's definition Liquidate undercollateralized borrower position for profit

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

granite_liquidate Approval-gated

Any call to granite_liquidate 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": {
    "granite_liquidate": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about granite_liquidate

What does the granite_liquidate tool do? +

Liquidate undercollateralized borrower position for profit. It is categorised as a Financial tool in the Stacks AI MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on granite_liquidate? +

Register the Stacks AI MCP Server MCP server in PolicyLayer and add a rule for granite_liquidate: 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 Stacks AI MCP Server. Nothing to install.

What risk level is granite_liquidate? +

granite_liquidate 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 granite_liquidate? +

Yes. Add a rate_limit block to the granite_liquidate 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 granite_liquidate completely? +

Set action: deny in the PolicyLayer policy for granite_liquidate. 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 granite_liquidate? +

granite_liquidate is provided by the Stacks AI MCP Server MCP server (stack-ai-mcp/stacks-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.