drive_upload_refresh_parts

Re-presign expired part URLs for an in-flight multipart upload. Send the PartNumbers you still need.

SERVERTrekMail MCP Server SOURCEtrekmail/mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/trekmail-mcp-server/drive-upload-refresh-parts.md

WHAT IT DOES

What drive_upload_refresh_parts does on TrekMail MCP Server

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

RISK

Why drive_upload_refresh_parts is rated Medium

This tool manages an in-progress upload operation by refreshing authentication tokens (presigned URLs) for multipart uploads. While it doesn't directly create new data or delete existing data, it modifies the operational state of an upload transaction in a reversible manner.

From the tool's definition Tool performs 're-presigning' of part URLs for 'in-flight multipart upload', which modifies the state of an ongoing upload operation by refreshing access credentials for upload parts.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs drive_upload_refresh_parts safely

PolicyLayer is an MCP gateway: it sits between your AI agents and TrekMail MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For drive_upload_refresh_parts, this is the rule to start with:

drive_upload_refresh_parts Rate-limited

drive_upload_refresh_parts 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": {
    "drive_upload_refresh_parts": {
      "limits": [
        {
          "counter": "drive_upload_refresh_parts_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect TrekMail MCP Server, apply this rule, and every drive_upload_refresh_parts call is checked against it from then on.

FAQ

Questions about drive_upload_refresh_parts

What does the drive_upload_refresh_parts tool do? +

Re-presign expired part URLs for an in-flight multipart upload. Send the PartNumbers you still need. It is categorised as a Write tool in the TrekMail 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 drive_upload_refresh_parts? +

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

What risk level is drive_upload_refresh_parts? +

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

Can I rate-limit drive_upload_refresh_parts? +

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

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

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

KEEP EXPLORING

More on TrekMail MCP Server, and thousands of servers like it.

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The MCP Attack Database →

Guides

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