sell_limit

A financial tool on the MCP Trader MCP server.

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/sell-limit.md

WHAT IT DOES

What sell_limit does on MCP Trader Server

AI agents use sell_limit 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 sell_limit is rated Critical

The tool name 'sell_limit' strongly implies placing a sell limit order in financial markets via MetaTrader 5. Sibling tools (buy_limit, buy_market, buy_stop, close_position) confirm this is a trading server where sell_limit would commit a financial obligation. Description is empty, but context is unambiguous. Misuse could result in unintended asset sales at specified price levels, causing direct financial harm.

From the tool's definition Tool name 'sell_limit' on a server that 'Supports real-time market data, automated trade execution, portfolio management'; sibling tools include buy_limit, buy_market, sell operations indicating trading order placement

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sell_limit 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 sell_limit, this is the rule to start with:

sell_limit Approval-gated

Any call to sell_limit 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": {
    "sell_limit": {
      "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 sell_limit call is checked against it from then on.

FAQ

Questions about sell_limit

What does the sell_limit tool do? +

sell_limit is a financial tool on the MCP Trader Server MCP server. 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 sell_limit? +

Register the MCP Trader Server MCP server in PolicyLayer and add a rule for sell_limit: 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 sell_limit? +

sell_limit 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 sell_limit? +

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

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

sell_limit 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.

KEEP EXPLORING

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

This server

All 45 MCP Trader Server tools → Critical-risk tools on this server →

Across the catalogue

place_limit_order on Lighter MCP → All critical-risk MCP tools → The MCP Attack Database →

Guides

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