Check if an order can be placed with the specified parameters.
AI agents call order_check to retrieve information from MetaTrader 5 MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a pre-flight validation of order parameters (likely checking margin requirements, symbol validity, position limits, etc.) but does not actually place, modify, or execute an order. It has no side effects on account state, positions, or market activity.
From the tool's definition Tool name 'order_check' and description 'Check if an order can be placed' indicate a validation/query operation that tests parameters without executing a transaction. The word 'check' explicitly signals a read-only, non-binding inspection.
Attacks that exploit this kind of access
Check if an order can be placed with the specified parameters. It is categorised as a Read tool in the MetaTrader 5 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MetaTrader 5 MCP Server MCP server in PolicyLayer and add a rule for order_check: 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 MetaTrader 5 MCP Server. Nothing to install.
order_check is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the order_check 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.
Set action: deny in the PolicyLayer policy for order_check. 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.
order_check is provided by the MetaTrader 5 MCP Server MCP server (sameerasulakshana/mcpmt5). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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