Calculate 10-year Zi Wei Dou Shu luck cycles across the person
AI agents call get_horoscope_decades to retrieve information from iztro OpenAI MCP for Railway without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and calculates astrological horoscope data for a given time period (decades). It is a query/calculation operation that returns information without modifying state, creating dependencies, or triggering external actions. The explicit 'read-only' designation in the server description confirms this classification.
From the tool's definition Tool name 'get_horoscope_decades' and description 'Calculate 10-year Zi Wei Dou Shu luck cycles' indicate data retrieval with no side effects. Server description explicitly states 'read-only tools'.
Attacks that exploit this kind of access
Calculate 10-year Zi Wei Dou Shu luck cycles across the person. It is categorised as a Read tool in the iztro OpenAI MCP for Railway MCP Server, which means it retrieves data without modifying state.
Register the iztro OpenAI MCP for Railway MCP server in PolicyLayer and add a rule for get_horoscope_decades: 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 iztro OpenAI MCP for Railway. Nothing to install.
get_horoscope_decades 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_horoscope_decades 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_horoscope_decades. 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_horoscope_decades is provided by the iztro OpenAI MCP for Railway MCP server (snapyharry-potter/iztro-openai-mcp-railway). 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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