Download a file from SharePoint or OneDrive and return its readable text content. Supports DOCX, PDF, XLSX, and text-based files. Use this instead of download_file when you need to read document contents. Use with sharepoint_search results by constructing the path: /drives/{driveId}/items/{itemId...
AI agents call read_document to retrieve information from Microsoft Graph 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 and extracts text from documents stored in SharePoint or OneDrive. It performs a query/fetch operation that returns data in a readable format without creating, modifying, deleting, or executing anything. The blast radius is limited to information disclosure of file contents accessible to the authenticated user. No side effects or state changes occur.
From the tool's definition Tool description explicitly states 'Download a file...and return its readable text content' and 'Use this...when you need to read document contents.' The verb 'read' and 'download for reading purposes' indicate data retrieval without modification.
Attacks that exploit this kind of access
Download a file from SharePoint or OneDrive and return its readable text content. Supports DOCX, PDF, XLSX, and text-based files. Use this instead of download_file when you need to read document contents. Use with sharepoint_search results by constructing the path: /drives/{driveId}/items/{itemId}/content. It is categorised as a Read tool in the Microsoft Graph MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Microsoft Graph MCP Server MCP server in PolicyLayer and add a rule for read_document: 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 Microsoft Graph MCP Server. Nothing to install.
read_document 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_document 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_document. 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_document is provided by the Microsoft Graph MCP Server MCP server (sapientsai/microsoft-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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