Calculate age-based Zi Wei Dou Shu luck periods across the person
AI agents call get_horoscope_ages 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 or calculates astrological data based on input parameters and returns the result. It has no capability to modify, delete, execute arbitrary code, or trigger external operations. It is a pure read operation consistent with the server's stated read-only design.
From the tool's definition Tool is named 'get_horoscope_ages' and described as calculating age-based luck periods. The server description explicitly states 'read-only tools' and lists this among other get_* retrieval tools (get_astrolabe, get_horoscope_decades, etc.).
Attacks that exploit this kind of access
Calculate age-based Zi Wei Dou Shu luck periods 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_ages: 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_ages 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_ages 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_ages. 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_ages 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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