AI agents call interpret_chart to retrieve information from Ziwei without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and analyzes astrological chart data to provide interpretations. It is a query/analysis operation with no side effects—it retrieves insights from existing data without modifying, executing external operations, or causing irreversible changes. The low severity reflects that misuse (e.g., an AI providing inaccurate astrological interpretation) has no material impact on systems or data integrity.
From the tool's definition Tool name 'interpret_chart' and description '解读紫微斗数命盘，提供详细的性格、事业、财运等分析' (interpret Ziwei Doushu chart, provide detailed analysis of personality, career, fortune, etc.) indicates data retrieval and analysis only.
Documented attack patterns abuse exactly the kind of access interpret_chart gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ziwei, and nothing reaches the server without passing your rules. This is the rule we recommend for interpret_chart:
{
"version": "1",
"default": "deny",
"tools": {
"interpret_chart": {}
}
}interpret_chart is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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解读紫微斗数命盘，提供详细的性格、事业、财运等分析. It is categorised as a Read tool in the Ziwei MCP Server, which means it retrieves data without modifying state.
Register the Ziwei MCP server in PolicyLayer and add a rule for interpret_chart: 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 Ziwei. Nothing to install.
interpret_chart 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 interpret_chart 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 interpret_chart. 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.
interpret_chart is provided by the Ziwei MCP server (siwuxue/ziwei-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Ziwei, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
12 Ziwei tools catalogued and risk-classified — across an index of 43,000+ MCP servers.