读取Excel文件内容
AI agents call read_excel_file 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 performs a query/retrieval operation on Excel files with no side effects. It does not create, modify, delete, or execute operations. The low severity reflects that unauthorized read access to spreadsheets typically has limited blast radius compared to write, destructive, or financial operations, though sensitivity depends on data classification.
From the tool's definition Tool name 'read_excel_file' and description '读取Excel文件内容' (read Excel file content) indicate retrieval of data without modification.
Attacks that exploit this kind of access
读取Excel文件内容. 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 read_excel_file: 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.
read_excel_file 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 read_excel_file 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 read_excel_file. 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.
read_excel_file 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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