列出所有工作表
AI agents call list_worksheets to retrieve information from Excel MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about existing worksheets in an Excel file without creating, modifying, or deleting any data. It is a read-only operation with minimal security risk—the worst case is information disclosure about worksheet structure, which has low impact.
From the tool's definition Tool name 'list_worksheets' and description '列出所有工作表' (list all worksheets) indicates retrieval of worksheet metadata with no modifications or side effects.
Attacks that exploit this kind of access
列出所有工作表. It is categorised as a Read tool in the Excel MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Excel MCP Server MCP server in PolicyLayer and add a rule for list_worksheets: 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 Excel MCP Server. Nothing to install.
list_worksheets 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 list_worksheets 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 list_worksheets. 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.
list_worksheets is provided by the Excel MCP Server MCP server (xuhongxin/excel-mcp). 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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