granite_flash_loan

Execute uncollateralized flash loan (must repay + fee in same tx)

SERVERStacks AI MCP Server SOURCEstack-ai-mcp/stacks-mcp-server

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/stack-ai-mcp-stacks-mcp-server/granite-flash-loan.md

WHAT IT DOES

What granite_flash_loan does on Stacks AI MCP Server

AI agents use granite_flash_loan 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.

RISK

Why granite_flash_loan is rated Critical

A flash loan is a financial operation that borrows and moves funds within a blockchain transaction. Even though it must be repaid in the same transaction, it involves real capital movement, fees, and can be used in complex DeFi exploits or arbitrage. It falls squarely in the Financial category with critical severity due to the potential for large capital exposure and misuse in adversarial scenarios.

From the tool's definition Execute uncollateralized flash loan (must repay + fee in same tx)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs granite_flash_loan safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Stacks AI MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For granite_flash_loan, this is the rule to start with:

granite_flash_loan Approval-gated

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

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Stacks AI MCP Server, apply this rule, and every granite_flash_loan call is checked against it from then on.

FAQ

Questions about granite_flash_loan

What does the granite_flash_loan tool do? +

Execute uncollateralized flash loan (must repay + fee in same tx). 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_flash_loan? +

Register the Stacks AI MCP Server MCP server in PolicyLayer and add a rule for granite_flash_loan: 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_flash_loan? +

granite_flash_loan 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_flash_loan? +

Yes. Add a rate_limit block to the granite_flash_loan 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_flash_loan completely? +

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

granite_flash_loan 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.

KEEP EXPLORING

More on Stacks AI MCP Server, and thousands of servers like it.

This server

All 200 Stacks AI MCP Server tools → Critical-risk tools on this server →

Across the catalogue

All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →