redmine_upload_file · Redmine MCP: Risk & Policy

WHAT IT DOES

What redmine_upload_file does on Redmine

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

WHY IT NEEDS A POLICY

Why redmine_upload_file needs a policy

This tool creates or adds files to Redmine projects, which is a reversible write operation. While files can be deleted later, the primary action is creation/modification of data. It does not execute arbitrary code, delete data irreversibly, or move funds.

From the tool's definition Tool name 'redmine_upload_file' and description 'Upload a file to a Redmine project' indicate file creation/storage operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

redmine_upload_file Rate-limited

redmine_upload_file 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": {
    "redmine_upload_file": {
      "limits": [
        {
          "counter": "redmine_upload_file_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 Redmine, so you can run agents against it safely.

FAQ

Questions about redmine_upload_file

What does the redmine_upload_file tool do? +

[Alpha] Upload a file to a Redmine project. IMPORTANT: You must first upload the file using Redmine. It is categorised as a Write tool in the Redmine MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on redmine_upload_file? +

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

What risk level is redmine_upload_file? +

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

Can I rate-limit redmine_upload_file? +

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

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

redmine_upload_file is provided by the Redmine MCP server (jesusr00/mcp-server-redmine). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.