Get Sector Fund Flow Ranking (Today).
AI agents call get_market_fund_flow to retrieve information from Stock Data 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 market data (sector fund flow rankings) for informational purposes. It has no side effects, cannot modify data, execute code, delete records, or move money. The verb 'Get' and the passive structure 'Fund Flow Ranking' confirm it is a read-only data query. Even if misused by an AI agent, the worst outcome would be obtaining market information, which poses minimal risk.
From the tool's definition Tool name 'get_market_fund_flow' and description 'Get Sector Fund Flow Ranking (Today)' indicate a retrieval operation that queries and returns market data without modification, deletion, or execution of operations.
Attacks that exploit this kind of access
Get Sector Fund Flow Ranking (Today). It is categorised as a Read tool in the Stock Data MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Stock Data MCP Server MCP server in PolicyLayer and add a rule for get_market_fund_flow: 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 Stock Data MCP Server. Nothing to install.
get_market_fund_flow 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_market_fund_flow 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_market_fund_flow. 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_market_fund_flow is provided by the Stock Data MCP Server MCP server (xj-bear/stockdata-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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