Read data from a LibreOffice Calc spreadsheet Args: path: Path to the spreadsheet file (.ods, .xlsx, etc.) sheet_name: Name of the specific sheet to read (if None, reads first sheet) max_rows: Maximum number of rows to read (default 100)
AI agents call read_spreadsheet_data to retrieve information from LibreOffice 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 spreadsheet data without creating, modifying, or deleting any content. It has no side effects on the document or system. The maximum rows parameter and sheet selection are standard read operations. Misuse by an AI agent would be limited to unauthorized data access but not data corruption or loss.
From the tool's definition Tool name 'read_spreadsheet_data' and description 'Read data from a LibreOffice Calc spreadsheet' indicate querying/retrieval only. Arguments (path, sheet_name, max_rows) are all read-only parameters with no modification or deletion capability.
Documented attack patterns abuse exactly the kind of access read_spreadsheet_data gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and LibreOffice MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for read_spreadsheet_data:
{
"version": "1",
"default": "deny",
"tools": {
"read_spreadsheet_data": {}
}
}read_spreadsheet_data is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Read data from a LibreOffice Calc spreadsheet Args: path: Path to the spreadsheet file (.ods, .xlsx, etc.) sheet_name: Name of the specific sheet to read (if None, reads first sheet) max_rows: Maximum number of rows to read (default 100). It is categorised as a Read tool in the LibreOffice MCP Server MCP Server, which means it retrieves data without modifying state.
Register the LibreOffice MCP Server MCP server in PolicyLayer and add a rule for read_spreadsheet_data: 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 LibreOffice MCP Server. Nothing to install.
read_spreadsheet_data 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_spreadsheet_data 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_spreadsheet_data. 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_spreadsheet_data is provided by the LibreOffice MCP Server MCP server (patrup/mcp-libre). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 LibreOffice MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
14 LibreOffice MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.