create_wordcloud_from_file · Word Cloud MCP: Risk & Policy

WHAT IT DOES

What create_wordcloud_from_file does on Word Cloud MCP

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

WHY IT NEEDS A POLICY

Why create_wordcloud_from_file needs a policy

This tool reads input files and writes output visualization files. It creates new files (word cloud images) as a combined extract+generate operation. No code execution, deletion, or financial action is involved. The primary side effect is creating new image files on disk, which fits the Write category.

From the tool's definition 从文档文件直接生成词云图（提取文字 + 生成词云图的组合操作）— combines text extraction and word cloud generation, producing output files (SVG, PNG, JPG, WebP)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_wordcloud_from_file Rate-limited

create_wordcloud_from_file 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_wordcloud_from_file": {
      "limits": [
        {
          "counter": "create_wordcloud_from_file_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Word Cloud MCP, so you can run agents against it safely.

FAQ

Questions about create_wordcloud_from_file

What does the create_wordcloud_from_file tool do? +

从文档文件直接生成词云图（提取文字 + 生成词云图的组合操作）. It is categorised as a Write tool in the Word Cloud MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_wordcloud_from_file? +

Register the Word Cloud MCP server in PolicyLayer and add a rule for create_wordcloud_from_file: 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 Word Cloud MCP. Nothing to install.

What risk level is create_wordcloud_from_file? +

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

Can I rate-limit create_wordcloud_from_file? +

Yes. Add a rate_limit block to the create_wordcloud_from_file 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 create_wordcloud_from_file completely? +

Set action: deny in the PolicyLayer policy for create_wordcloud_from_file. 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 create_wordcloud_from_file? +

create_wordcloud_from_file is provided by the Word Cloud MCP server (onepiecelwc/word-cloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.