Get metadata fields for a SharePoint file
AI agents call get_file_metadata to retrieve information from SharePoint 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 metadata information about a file without creating, modifying, deleting, or executing anything. It is a query operation that returns information only, fitting the Read category. Severity is low because metadata retrieval has minimal security impact unless sensitive metadata is exposed, but the tool itself does not enable harmful actions.
From the tool's definition Tool name 'get_file_metadata' and description 'Get metadata fields for a SharePoint file' indicate a retrieval operation with no modification or execution capability.
Attacks that exploit this kind of access
Get metadata fields for a SharePoint file. It is categorised as a Read tool in the SharePoint MCP Server MCP Server, which means it retrieves data without modifying state.
Register the SharePoint MCP Server MCP server in PolicyLayer and add a rule for get_file_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 SharePoint MCP Server. Nothing to install.
get_file_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 get_file_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 get_file_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.
get_file_metadata is provided by the SharePoint MCP Server MCP server (peacockery-studio/sharepoint-mcp). 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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