AI agents call get_doc_meta to retrieve information from Feishu without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves metadata about Feishu documents (title, owner, and similar properties). It performs no data modification, deletion, or execution of external operations. It is a read-only operation with minimal security impact, making it a Read category tool with low severity.
From the tool's definition Tool name 'get_doc_meta' and description '获取飞书文档的元信息（标题、所有者等）' (get Feishu document metadata such as title, owner, etc.) indicate retrieval of document metadata without modification.
Attacks that exploit this kind of access
获取飞书文档的元信息（标题、所有者等）. It is categorised as a Read tool in the Feishu MCP Server, which means it retrieves data without modifying state.
Register the Feishu MCP server in PolicyLayer and add a rule for get_doc_meta: 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. Nothing to install.
get_doc_meta 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 get_doc_meta 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 get_doc_meta. 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.
get_doc_meta is provided by the Feishu MCP server (lm203688/feishu-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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