List files and sub-folders inside a document library or a specific folder within it.
AI agents call list_files 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 queries and retrieves file and folder metadata from SharePoint without creating, modifying, deleting, or executing any operations. It is a straightforward data retrieval function with no side effects. The blast radius of misuse is minimal—an agent could enumerate files it may not have permission to see, but this is a confidentiality concern rather than a destructive or operational risk.
From the tool's definition Tool name and description: 'List files and sub-folders inside a document library or a specific folder within it.' The verb 'list' and the action of retrieving/enumerating folder contents with no modifications indicate a read-only operation.
Attacks that exploit this kind of access
List files and sub-folders inside a document library or a specific folder within it. 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 list_files: 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.
list_files 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 list_files 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 list_files. 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.
list_files is provided by the SharePoint MCP Server MCP server (lukassevcik/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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