List available news providers from Interactive Brokers (e.g., Reuters, Dow Jones, Briefing.com).
AI agents call get_ib_news_providers 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 simply retrieves and enumerates a static list of news provider names from Interactive Brokers. It performs no data modification, deletion, code execution, or financial transactions. Even if misused by an AI agent, the worst outcome is viewing publicly available metadata about news sources, posing minimal risk to accounts, data integrity, or financial position.
From the tool's definition Tool name contains 'get' and description states 'List available news providers' — a retrieval operation with no side effects, modifications, or execution of code.
Attacks that exploit this kind of access
List available news providers from Interactive Brokers (e.g., Reuters, Dow Jones, Briefing.com). 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_ib_news_providers: 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_ib_news_providers 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_ib_news_providers 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_ib_news_providers. 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_ib_news_providers 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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