AI agents call get_sheet_values 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 retrieves spreadsheet data from Feishu without modifying, deleting, or executing anything. It is a straightforward data retrieval operation, consistent with other Read category tools on the same server like get_doc_content, get_doc_meta, and search_docs.
From the tool's definition Tool name is 'get_sheet_values' and description translates to 'Get data from Feishu spreadsheets'. The verb 'get' and 'retrieve data' indicate a read-only operation with no side effects.
Attacks that exploit this kind of access
获取飞书电子表格的数据. 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_sheet_values: 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_sheet_values 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_sheet_values 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_sheet_values. 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_sheet_values 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.
Teams ship this data inside their own products. See what a licence covers →