ดึงงบดุล (Balance Sheet) ของหุ้นไทยรายตัว\n
AI agents call get_balance_sheet to retrieve information from Yahoo Finance without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical financial data (balance sheet) from Yahoo Finance API. It performs a GET/query operation that returns information about a stock's financial position without creating, modifying, deleting, or executing any operations. The action is purely informational with no side effects on data or systems.
From the tool's definition Tool name 'get_balance_sheet' and description indicate data retrieval ('ดึง' = fetch/retrieve) of financial statements with no modification capability.
Attacks that exploit this kind of access
ดึงงบดุล (Balance Sheet) ของหุ้นไทยรายตัว\n. It is categorised as a Read tool in the Yahoo Finance MCP Server, which means it retrieves data without modifying state.
Register the Yahoo Finance MCP server in PolicyLayer and add a rule for get_balance_sheet: 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 Yahoo Finance. Nothing to install.
get_balance_sheet 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_balance_sheet 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_balance_sheet. 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_balance_sheet is provided by the Yahoo Finance MCP server (itjung-source/yahoo-finance-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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