close_deal

Close the active deal on a bot at market price. Works for both SPOT and FUTURES bots.

SERVER:GT Protocol MCP Server SOURCEgt-protocol/mcp

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/gt-protocol-mcp/close-deal.md

WHAT IT DOES

What close_deal does on :GT Protocol MCP Server

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

RISK

Why close_deal is rated Critical

Closing a deal at market price constitutes a financial transaction: it liquidates an open trading position, realizing gains or losses. This is irreversible once executed and directly moves funds, making it Financial and critical severity since misuse by an AI agent could cause significant unintended financial loss.

From the tool's definition 'Close the active deal on a bot at market price' — immediately executes a market-order trade closing on live exchange accounts (Binance, Hyperliquid)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs close_deal safely

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

close_deal Approval-gated

Any call to close_deal 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": {
    "close_deal": {
      "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 :GT Protocol MCP Server, apply this rule, and every close_deal call is checked against it from then on.

FAQ

Questions about close_deal

What does the close_deal tool do? +

Close the active deal on a bot at market price. Works for both SPOT and FUTURES bots. It is categorised as a Financial tool in the :GT Protocol MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on close_deal? +

Register the :GT Protocol MCP Server MCP server in PolicyLayer and add a rule for close_deal: 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 :GT Protocol MCP Server. Nothing to install.

What risk level is close_deal? +

close_deal 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 close_deal? +

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

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

close_deal is provided by the :GT Protocol MCP Server MCP server (gt-protocol/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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