Get symbols that match a specific group or pattern.
AI agents call get_symbols_by_group 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 retrieves or queries symbol information based on group criteria without creating, modifying, deleting, or executing any operations. It is a read-only informational query. While it's on a trading platform server, the tool itself only returns metadata about available symbols, not account data or execution capabilities.
From the tool's definition Tool name 'get_symbols_by_group' and description 'Get symbols that match a specific group or pattern' indicate a retrieval operation with no side effects. The action is passive data lookup of available trading symbols.
Attacks that exploit this kind of access
Get symbols that match a specific group or pattern. 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 get_symbols_by_group: 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.
get_symbols_by_group 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 get_symbols_by_group 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 get_symbols_by_group. 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.
get_symbols_by_group 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.
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