Get metadata for an open document: title, author, page count, word count, format, file size, dates. Token-efficient: use this before reading document content to understand its size and structure.
AI agents call document_get_metadata to retrieve information from LibreOffice MCP Tools without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs purely informational queries on document properties without creating, modifying, deleting, or executing any operations. It has no side effects and poses minimal risk even if misused by an AI agent, as it only exposes non-sensitive structural information about documents.
From the tool's definition Tool retrieves document metadata (title, author, page count, word count, format, file size, dates) with no modification capability.
Attacks that exploit this kind of access
Get metadata for an open document: title, author, page count, word count, format, file size, dates. Token-efficient: use this before reading document content to understand its size and structure. It is categorised as a Read tool in the LibreOffice MCP Tools MCP Server, which means it retrieves data without modifying state.
Register the LibreOffice MCP Tools MCP server in PolicyLayer and add a rule for document_get_metadata: 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 Tools. Nothing to install.
document_get_metadata 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 document_get_metadata 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 document_get_metadata. 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.
document_get_metadata is provided by the LibreOffice MCP Tools MCP server (passerbyflutter/libreoffice-mcp-tools). 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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