Get token balances for your team
AI agents call get_balances to retrieve information from Trading Simulator 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 financial data (token balances) but performs no writes, executions, or financial transactions. It is purely informational and read-only in nature. The blast radius of misuse is minimal—an attacker gaining access to this tool could only view balance information, not modify accounts or move funds. Severity is low because the impact is limited to information disclosure.
From the tool's definition Tool name is 'get_balances' and description states 'Get token balances for your team' - a query operation that retrieves account balance data without modifying or executing any operations.
Attacks that exploit this kind of access
Get token balances for your team. It is categorised as a Read tool in the Trading Simulator MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Trading Simulator MCP Server MCP server in PolicyLayer and add a rule for get_balances: 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 Trading Simulator MCP Server. Nothing to install.
get_balances 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_balances 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_balances. 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_balances is provided by the Trading Simulator MCP Server MCP server (recallnet/trading-simulator-mcp). 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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