feishu_update_content · Feishu MCP Server MCP: Risk & Policy

WHAT IT DOES

What feishu_update_content does on Feishu MCP Server

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

WHY IT NEEDS A POLICY

Why feishu_update_content needs a policy

This tool modifies document content but does not delete or destroy the document itself—the document structure is preserved (title is retained per description). The operation is reversible through subsequent updates. While it has significant impact on data, it falls under Write rather than Destructive since the underlying resource remains and can be restored.

From the tool's definition Tool description states '替换飞书文档的全部内容' (replace all content of Feishu document) and '完全重写文档内容' (completely rewrite document content). The function updates/modifies document content reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

feishu_update_content Rate-limited

feishu_update_content 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_update_content": {
      "limits": [
        {
          "counter": "feishu_update_content_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 Feishu MCP Server, so you can run agents against it safely.

FAQ

Questions about feishu_update_content

What does the feishu_update_content tool do? +

替换飞书文档的全部内容（保留标题）。用于完全重写文档内容。. It is categorised as a Write tool in the Feishu MCP Server 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_update_content? +

Register the Feishu MCP Server MCP server in PolicyLayer and add a rule for feishu_update_content: 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 Feishu MCP Server. Nothing to install.

What risk level is feishu_update_content? +

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

Can I rate-limit feishu_update_content? +

Yes. Add a rate_limit block to the feishu_update_content 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_update_content completely? +

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

feishu_update_content is provided by the Feishu MCP Server MCP server (redleaves/feishu-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.