uploadAndAttachFile · RSpace MCP Server MCP: Risk & Policy

WHAT IT DOES

What uploadAndAttachFile does on RSpace MCP Server

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

WHY IT NEEDS A POLICY

Why uploadAndAttachFile needs a policy

The tool performs file upload and attachment, which are reversible write operations that modify research data structures by adding files to items. While the empty description limits confidence, the compound verb 'upload and attach' and the context of a research data management system (RSpace) indicate data creation/modification rather than deletion or financial operations.

From the tool's definition Tool name 'uploadAndAttachFile' indicates file upload and attachment operations. Sibling tools like 'create_document_from_form', 'create_form', and 'add_note_to_subsample' confirm this server manipulates research data in RSpace.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

uploadAndAttachFile Rate-limited

uploadAndAttachFile 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": {
    "uploadAndAttachFile": {
      "limits": [
        {
          "counter": "uploadandattachfile_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 RSpace MCP Server, so you can run agents against it safely.

FAQ

Questions about uploadAndAttachFile

What does the uploadAndAttachFile tool do? +

uploadAndAttachFile. It is categorised as a Write tool in the RSpace 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 uploadAndAttachFile? +

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

What risk level is uploadAndAttachFile? +

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

Can I rate-limit uploadAndAttachFile? +

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

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

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