AI agents call get_cash_flow_statement to retrieve information from Cn Financial without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries financial statements (cash flow data organized by quarter) with no side effects. It returns read-only financial information about companies, consistent with other data retrieval tools on this financial data server (get_balance_sheet, get_dividend_data, etc.). No creation, modification, deletion, code execution, or financial transactions are involved.
From the tool's definition Tool name 'get_cash_flow_statement' and description '获取现金流量表（按季度）' (Get cash flow statement by quarter) indicate retrieval of financial data without modification or execution capabilities.
Documented attack patterns abuse exactly the kind of access get_cash_flow_statement gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Cn Financial, and nothing reaches the server without passing your rules. This is the rule we recommend for get_cash_flow_statement:
{
"version": "1",
"default": "deny",
"tools": {
"get_cash_flow_statement": {}
}
}get_cash_flow_statement is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取现金流量表（按季度）。. It is categorised as a Read tool in the Cn Financial MCP Server, which means it retrieves data without modifying state.
Register the Cn Financial MCP server in PolicyLayer and add a rule for get_cash_flow_statement: 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 Cn Financial. Nothing to install.
get_cash_flow_statement 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_cash_flow_statement 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_cash_flow_statement. 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_cash_flow_statement is provided by the Cn Financial MCP server (ccq1/cn-financial-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Cn Financial, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
42 Cn Financial tools catalogued and risk-classified — across an index of 43,000+ MCP servers.