Search for cells matching a value or regex pattern. Use
AI agents call find_cells 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 retrieves or queries cell data based on search criteria without creating, modifying, deleting, or executing any operations. It is purely informational, similar to a find/search function in Excel, making it a Read operation with low risk.
From the tool's definition Tool name 'find_cells' and description 'Search for cells matching a value or regex pattern' indicate a search/query operation with no modification of data.
Attacks that exploit this kind of access
Search for cells matching a value or regex pattern. Use. 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 find_cells: 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.
find_cells 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 find_cells 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 find_cells. 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.
find_cells is provided by the Excel MCP Server MCP server (kousunh/excel-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 →