列出 .xls 文件中的所有工作表名称
AI agents call list_sheets_xls to retrieve information from Xls Mcp Servers without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about the structure of an Excel file (sheet names) without reading cell data, modifying content, or executing operations. It is a straightforward read/query operation with minimal security risk. The action is non-destructive and read-only.
From the tool's definition Tool name 'list_sheets_xls' and description indicating it 'lists all sheet names in .xls file' — a query operation with no data modification or side effects.
Attacks that exploit this kind of access
列出 .xls 文件中的所有工作表名称. It is categorised as a Read tool in the Xls Mcp Servers MCP Server, which means it retrieves data without modifying state.
Register the Xls Mcp Servers MCP server in PolicyLayer and add a rule for list_sheets_xls: 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 Xls Mcp Servers. Nothing to install.
list_sheets_xls 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_sheets_xls 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_sheets_xls. 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_sheets_xls is provided by the Xls Mcp Servers MCP server (lincyghb/xls-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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