pm_toggle_buyers · Basis MCP Server MCP: Risk & Policy

WHAT IT DOES

What pm_toggle_buyers does on Basis MCP Server

AI agents use pm_toggle_buyers to create or update resources in Basis MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Basis MCP Server environment.

WHY IT NEEDS A POLICY

Why pm_toggle_buyers needs a policy

Toggling buyer access modifies access control settings for a prediction market event. This is a reversible write operation (access can be toggled back), not destructive. However, misuse could lock out legitimate buyers or grant access to unauthorized parties, warranting medium severity.

From the tool's definition Toggle private event buyer access

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pm_toggle_buyers Rate-limited

pm_toggle_buyers stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "pm_toggle_buyers": {
      "limits": [
        {
          "counter": "pm_toggle_buyers_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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_toggle_buyers

What does the pm_toggle_buyers tool do? +

Toggle private event buyer access. It is categorised as a Write tool in the Basis MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on pm_toggle_buyers? +

Register the Basis MCP Server MCP server in PolicyLayer and add a rule for pm_toggle_buyers: 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_toggle_buyers? +

pm_toggle_buyers is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit pm_toggle_buyers? +

Yes. Add a rate_limit block to the pm_toggle_buyers 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_toggle_buyers completely? +

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

pm_toggle_buyers 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.