Vyhledání ekonomického subjektu ARES podle zadaného IČA (Get economic entity by ICO)
AI agents call najit_ekonomicky_subjekt to retrieve information from ARES 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 publicly available information about Czech companies from the ARES registry using an identification number (IČO). It performs a query operation with no side effects, data modification, or irreversible actions. The blast radius of misuse is minimal—at worst, an agent could gather information about businesses, which is already public.
From the tool's definition Tool name translates to 'find economic subject' and description states 'Get economic entity by ICO' — a retrieval operation.
Attacks that exploit this kind of access
Vyhledání ekonomického subjektu ARES podle zadaného IČA (Get economic entity by ICO). It is categorised as a Read tool in the ARES MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ARES MCP Server MCP server in PolicyLayer and add a rule for najit_ekonomicky_subjekt: 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 ARES MCP Server. Nothing to install.
najit_ekonomicky_subjekt 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 najit_ekonomicky_subjekt 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 najit_ekonomicky_subjekt. 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.
najit_ekonomicky_subjekt is provided by the ARES MCP Server MCP server (vzeman/ares-mcp-server). 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.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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