AI agents call get_general_fortune to retrieve information from Tuvi without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or generates fortune predictions based on traditional Vietnamese fortune-telling methods (lunar calendar, Can Chi, Ngũ Hành elements). No side effects occur—it queries data or performs calculations without modifying any state.
From the tool's definition Tool name 'get_general_fortune' and the server's purpose of providing 'general fortune predictions' indicate a retrieval operation. The server description confirms this is an analysis/prediction tool without side effects.
Attacks that exploit this kind of access
get_general_fortune. It is categorised as a Read tool in the Tuvi MCP Server, which means it retrieves data without modifying state.
Register the Tuvi MCP server in PolicyLayer and add a rule for get_general_fortune: 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 Tuvi. Nothing to install.
get_general_fortune 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_general_fortune 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_general_fortune. 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_general_fortune is provided by the Tuvi MCP server (maobui2907/tuvi-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.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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