Medium Risk

generate_visualization

生成命盘可视化图表,支持多种样式和格式

How to control generate_visualization ↓

What generate_visualization does on Ziwei

AI agents use generate_visualization to create or update resources in Ziwei — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ziwei environment.

Medium Risk

Why generate_visualization needs a policy

This tool creates visual representations (charts/diagrams) based on astrological data. While it generates new content, the output is a visualization/document artifact with no destructive, financial, or system-level side effects. It qualifies as Write (creates content reversibly) rather than Read (merely retrieves) because it synthesizes and generates new visual output.

From the tool's definition Tool name 'generate_visualization' and description '生成命盘可视化图表,支持多种样式和格式' (Generate destiny chart visualization, supports multiple styles and formats) indicates creation of visual output artifacts.

Documented attack patterns abuse exactly the kind of access generate_visualization gives an agent:

How to control generate_visualization

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 generate_visualization:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_visualization": {
      "limits": [
        {
          "counter": "generate_visualization_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

generate_visualization stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Ziwei — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

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Questions about generate_visualization

What does the generate_visualization tool do? +

生成命盘可视化图表,支持多种样式和格式. It is categorised as a Write tool in the Ziwei MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_visualization? +

Register the Ziwei MCP server in PolicyLayer and add a rule for generate_visualization: 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.

What risk level is generate_visualization? +

generate_visualization is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit generate_visualization? +

Yes. Add a rate_limit block to the generate_visualization 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.

How do I block generate_visualization completely? +

Set action: deny in the PolicyLayer policy for generate_visualization. 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.

What MCP server provides generate_visualization? +

generate_visualization 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.

Enforce policy on every Ziwei tool call.

Start from Ziwei, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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12 Ziwei tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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