feishu_doc_create · Lark Cli MCP: Risk & Policy

WHAT IT DOES

What feishu_doc_create does on Lark Cli

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

WHY IT NEEDS A POLICY

Why feishu_doc_create needs a policy

This tool creates new documents in Feishu, which is a reversible write operation. The user can subsequently edit or delete the created document. While it modifies the user's document store, it does not irreversibly destroy data (hence not Destructive) and does not involve financial transactions.

From the tool's definition Tool name 'feishu_doc_create' and description '新建一篇飞书文档（Markdown 内容）' (Create a new Feishu document with Markdown content) indicates document creation functionality.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

feishu_doc_create Rate-limited

feishu_doc_create 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": {
    "feishu_doc_create": {
      "limits": [
        {
          "counter": "feishu_doc_create_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 Lark Cli, so you can run agents against it safely.

FAQ

Questions about feishu_doc_create

What does the feishu_doc_create tool do? +

新建一篇飞书文档（Markdown 内容）. It is categorised as a Write tool in the Lark Cli MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on feishu_doc_create? +

Register the Lark Cli MCP server in PolicyLayer and add a rule for feishu_doc_create: 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 Lark Cli. Nothing to install.

What risk level is feishu_doc_create? +

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

Can I rate-limit feishu_doc_create? +

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

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

feishu_doc_create is provided by the Lark Cli MCP server (yoreland/lark-cli-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.