wait_event

A execute tool on the MetaTrader5 MCP server.

SERVERMetaTrader5 MCP Server SOURCEemerzon/mt-data-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/emerzon-mt-data-mcp/wait-event.md

WHAT IT DOES

What wait_event does on MetaTrader5 MCP Server

AI agents invoke wait_event to trigger actions in MetaTrader5 MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why wait_event is rated High

The tool appears to block execution pending an event trigger in a trading system. Without description details, confidence is moderate, but 'wait' operations in trading contexts typically represent control flow that can affect timing of trades or market operations—making it Execute rather than Read.

From the tool's definition Tool name 'wait_event' with empty description on MetaTrader5 MCP Server suggests event-driven execution; context indicates trading system operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs wait_event safely

PolicyLayer is an MCP gateway: it sits between your AI agents and MetaTrader5 MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For wait_event, this is the rule to start with:

wait_event Rate-limited

wait_event stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wait_event": {
      "limits": [
        {
          "counter": "wait_event_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect MetaTrader5 MCP Server, apply this rule, and every wait_event call is checked against it from then on.

FAQ

Questions about wait_event

What does the wait_event tool do? +

wait_event is a execute tool on the MetaTrader5 MCP Server MCP server. It is categorised as a Execute tool in the MetaTrader5 MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on wait_event? +

Register the MetaTrader5 MCP Server MCP server in PolicyLayer and add a rule for wait_event: 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 MetaTrader5 MCP Server. Nothing to install.

What risk level is wait_event? +

wait_event is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit wait_event? +

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

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

wait_event is provided by the MetaTrader5 MCP Server MCP server (emerzon/mt-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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