Get general market news and headlines.
AI agents call get_market_news to retrieve information from IB Portfolio Tracker 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/queries market news data without creating, modifying, deleting, or executing operations. It has no financial impact (no money movement) and no capability to alter system state. The blast radius of misuse is minimal—an AI agent could retrieve excessive data or spam requests, but cannot cause financial loss or destructive outcomes. Classified as Read with low severity.
From the tool's definition Tool name 'get_market_news' and description 'Get general market news and headlines' indicate data retrieval with no side effects. Returns publicly available market information without modification or execution capabilities.
Attacks that exploit this kind of access
Get general market news and headlines. It is categorised as a Read tool in the IB Portfolio Tracker MCP Server MCP Server, which means it retrieves data without modifying state.
Register the IB Portfolio Tracker MCP Server MCP server in PolicyLayer and add a rule for get_market_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 IB Portfolio Tracker MCP Server. Nothing to install.
get_market_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_market_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_market_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_market_news is provided by the IB Portfolio Tracker MCP Server MCP server (vinbg/ib-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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