pm_buy_order · Basis MCP Server MCP: Risk & Policy

WHAT IT DOES

What pm_buy_order does on Basis MCP Server

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

WHY IT NEEDS A POLICY

Why pm_buy_order needs a policy

This tool fills a market order in a private market context on a financial protocol. Filling orders involves committing funds and executing trades, which is a direct financial operation. Given the blockchain/DeFi context (BNB Smart Chain, trading protocol), misuse could result in significant financial loss with irreversible on-chain transactions.

From the tool's definition Fill a private market order' — directly executes a financial trade/order fill on a blockchain market protocol

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pm_buy_order Approval-gated

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

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

FAQ

Questions about pm_buy_order

What does the pm_buy_order tool do? +

Fill a private market order. It is categorised as a Financial tool in the Basis MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on pm_buy_order? +

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

What risk level is pm_buy_order? +

pm_buy_order 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 pm_buy_order? +

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

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

pm_buy_order is provided by the Basis MCP Server MCP server (launch-on-basis/mcp-ts). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.