AI agents call get_finance_news to retrieve information from Stock Info Service without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears to fetch or retrieve financial news data. There is no indication of creation, modification, deletion, code execution, or financial transactions. The 'get_' prefix and naming pattern consistent with other read-only sibling tools (get_stock_info, get_stock_news, get_stock_price_monthly) confirms this is a Read operation.
From the tool's definition Tool name 'get_finance_news' indicates retrieval of news data with no modification capability. The empty description prevents confirmation of side effects, but the name and context (sibling tools like get_stock_news, get_stock_info) strongly suggest read-only…
Documented attack patterns abuse exactly the kind of access get_finance_news gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Stock Info Service, and nothing reaches the server without passing your rules. This is the rule we recommend for get_finance_news:
{
"version": "1",
"default": "deny",
"tools": {
"get_finance_news": {}
}
}get_finance_news is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_finance_news. It is categorised as a Read tool in the Stock Info Service MCP Server, which means it retrieves data without modifying state.
Register the Stock Info Service MCP server in PolicyLayer and add a rule for get_finance_news: 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 Info Service. Nothing to install.
get_finance_news 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_finance_news 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_finance_news. 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_finance_news is provided by the Stock Info Service MCP server (tddt/stock_info_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Stock Info Service, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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7 Stock Info Service tools catalogued and risk-classified — across an index of 43,000+ MCP servers.