회사 관련 뉴스 조회 (감성 분석 포함)
AI agents call finnhub_news to retrieve information from PM-MCP (Portfolio Management MCP Server) without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves company news data with sentiment analysis from Finnhub—a read-only operation with no side effects. It falls squarely into the Read category as it merely fetches and analyzes existing information without creating, modifying, or destructively changing any data.
From the tool's definition Tool name 'finnhub_news' and description '회사 관련 뉴스 조회 (감성 분석 포함)' [company-related news retrieval with sentiment analysis included] indicate data retrieval only. No modification, deletion, or execution of external operations.
Attacks that exploit this kind of access
회사 관련 뉴스 조회 (감성 분석 포함). It is categorised as a Read tool in the PM-MCP (Portfolio Management MCP Server) MCP Server, which means it retrieves data without modifying state.
Register the PM-MCP (Portfolio Management MCP Server) MCP server in PolicyLayer and add a rule for finnhub_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 PM-MCP (Portfolio Management MCP Server). Nothing to install.
finnhub_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 finnhub_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 finnhub_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.
finnhub_news is provided by the PM-MCP (Portfolio Management MCP Server) MCP server (surplus96/pm-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
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