folder_move · M365 MCP: Risk & Policy

WHAT IT DOES

What folder_move does on M365

AI agents use folder_move to create or update resources in M365 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your M365 environment.

WHY IT NEEDS A POLICY

Why folder_move needs a policy

Moving folders is a reversible modification operation—data is not deleted but relocated. This qualifies as Write rather than Destructive. Severity is medium because folder moves in enterprise systems can disrupt workflows, sharing permissions, or data organization, but the action is undoable (via undo or moving back).

From the tool's definition Tool name 'folder_move' indicates a file/folder operation that modifies the location/organization of data within Microsoft 365 (likely OneDrive or email folders).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

folder_move Rate-limited

folder_move stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "folder_move": {
      "limits": [
        {
          "counter": "folder_move_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches M365, so you can run agents against it safely.

FAQ

Questions about folder_move

What does the folder_move tool do? +

folder_move. It is categorised as a Write tool in the M365 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on folder_move? +

Register the M365 MCP server in PolicyLayer and add a rule for folder_move: 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 M365. Nothing to install.

What risk level is folder_move? +

folder_move is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit folder_move? +

Yes. Add a rate_limit block to the folder_move 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.

How do I block folder_move completely? +

Set action: deny in the PolicyLayer policy for folder_move. 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.

What MCP server provides folder_move? +

folder_move is provided by the M365 MCP server (robin-collins/m365-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.