AI agents call get_fund_data to retrieve information from Borsa MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves historical fund performance data, portfolio composition, and comparative metrics—all read-only operations with no side effects. While it pertains to financial markets, it does not move money, execute trades, or commit financial obligations.
From the tool's definition Tool description explicitly states 'Get TEFAS fund info' and retrieve-oriented operations: 'returns', 'portfolio', 'compare funds'. No language suggesting creation, modification, deletion, code execution, or financial transactions.
Attacks that exploit this kind of access
Get TEFAS fund info with returns (daily/weekly/1m/3m/6m/1y/3y/5y), portfolio, or compare funds. Supports custom date range. It is categorised as a Read tool in the Borsa MCP MCP Server, which means it retrieves data without modifying state.
Register the Borsa MCP server in PolicyLayer and add a rule for get_fund_data: 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 Borsa MCP. Nothing to install.
get_fund_data 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_fund_data 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_fund_data. 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_fund_data is provided by the Borsa MCP server (saidsurucu/borsa-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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