Fetch a SharePoint file using the same authenticated session as Outlook. Handles sharing links from emails. Either sharePointUrl OR fileId must be provided.
AI agents call outlook_get_sharepoint_file to retrieve information from Outlook without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a Read operation as it retrieves file data without modifying, deleting, or executing anything. Severity is medium rather than low because it can access potentially sensitive files from SharePoint via email sharing links, which could expose confidential business data if an AI agent misuses the authentication context or specifies unintended files.
From the tool's definition Tool fetches SharePoint files - 'Fetch a SharePoint file' indicates data retrieval with no modification. The tool retrieves content using existing authentication without side effects.
Documented attack patterns abuse exactly the kind of access outlook_get_sharepoint_file gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Outlook, and nothing reaches the server without passing your rules. This is the rule we recommend for outlook_get_sharepoint_file:
{
"version": "1",
"default": "deny",
"tools": {
"outlook_get_sharepoint_file": {}
}
}outlook_get_sharepoint_file is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Fetch a SharePoint file using the same authenticated session as Outlook. Handles sharing links from emails. Either sharePointUrl OR fileId must be provided. It is categorised as a Read tool in the Outlook MCP Server, which means it retrieves data without modifying state.
Register the Outlook MCP server in PolicyLayer and add a rule for outlook_get_sharepoint_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 Outlook. Nothing to install.
outlook_get_sharepoint_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 outlook_get_sharepoint_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 outlook_get_sharepoint_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.
outlook_get_sharepoint_file is provided by the Outlook MCP server (xenoxilus/outlook-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Outlook, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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43 Outlook tools catalogued and risk-classified — across an index of 43,000+ MCP servers.