close_all_positions

Close all open positions.

SERVERMCP Trader Server SOURCEaf7007/mcp-trader

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/af7007-mcp-trader/close-all-positions.md

WHAT IT DOES

What close_all_positions does on MCP Trader Server

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

RISK

Why close_all_positions is rated Critical

This tool performs a mass financial operation by closing ALL open positions at once, committing to market prices for every open trade. Misuse by an AI agent could result in catastrophic financial losses if positions are closed at unfavorable prices, or disrupt an entire trading strategy. It is irreversible (trades are executed at market) and has maximum financial blast radius.

From the tool's definition 'Close all open positions' - closes every open trading position simultaneously

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs close_all_positions safely

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

close_all_positions Approval-gated

Any call to close_all_positions 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_all_positions": {
      "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 MCP Trader Server, apply this rule, and every close_all_positions call is checked against it from then on.

FAQ

Questions about close_all_positions

What does the close_all_positions tool do? +

Close all open positions. It is categorised as a Financial tool in the MCP Trader Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on close_all_positions? +

Register the MCP Trader Server MCP server in PolicyLayer and add a rule for close_all_positions: 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 MCP Trader Server. Nothing to install.

What risk level is close_all_positions? +

close_all_positions 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_all_positions? +

Yes. Add a rate_limit block to the close_all_positions 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_all_positions completely? +

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

close_all_positions is provided by the MCP Trader Server MCP server (af7007/mcp-trader). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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