complete_file_upload · Notion MCP Server MCP: Risk & Policy

WHAT IT DOES

What complete_file_upload does on Notion MCP Server

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

WHY IT NEEDS A POLICY

Why complete_file_upload needs a policy

Completing a file upload is a write operation that finalizes or commits an uploaded file within Notion, modifying the document/file state. It is not destructive (the file can be deleted later), not financial, and not arbitrary code execution. While it affects data, the operation itself is reversible and does not permanently remove data.

From the tool's definition Tool name 'complete_file_upload' and description 'Complete a file upload' indicate finalization of a file upload process, which modifies the state of a file object in Notion (marking upload as complete).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

complete_file_upload Rate-limited

complete_file_upload 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": {
    "complete_file_upload": {
      "limits": [
        {
          "counter": "complete_file_upload_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about complete_file_upload

What does the complete_file_upload tool do? +

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

How do I enforce a policy on complete_file_upload? +

Register the Notion MCP Server MCP server in PolicyLayer and add a rule for complete_file_upload: 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 Notion MCP Server. Nothing to install.

What risk level is complete_file_upload? +

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

Can I rate-limit complete_file_upload? +

Yes. Add a rate_limit block to the complete_file_upload 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 complete_file_upload completely? +

Set action: deny in the PolicyLayer policy for complete_file_upload. 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 complete_file_upload? +

complete_file_upload is provided by the Notion MCP Server MCP server (lrgex/notion-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.