upload_agent_media · BotUyo MCP Server MCP: Risk & Policy

WHAT IT DOES

What upload_agent_media does on BotUyo MCP Server

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

WHY IT NEEDS A POLICY

Why upload_agent_media needs a policy

This tool creates a new media resource on a CDN and modifies agent configuration to associate it. While it reads a local file and writes to external storage, the primary effects are reversible writes: the media can be deleted or reassigned.

From the tool's definition Tool description states it 'uploads it via the backend media API' and 'updates the agent', indicating creation and modification of data. The operation affects agent state by assigning media (avatar or logo) to an agent.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upload_agent_media Rate-limited

upload_agent_media 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": {
    "upload_agent_media": {
      "limits": [
        {
          "counter": "upload_agent_media_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 BotUyo MCP Server, so you can run agents against it safely.

FAQ

Questions about upload_agent_media

What does the upload_agent_media tool do? +

Upload a local image file to the CDN and assign it to an agent as avatar or logo. Reads the file from the local filesystem, uploads it via the backend media API (Cloudinary), and updates the agent. It is categorised as a Write tool in the BotUyo 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 upload_agent_media? +

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

What risk level is upload_agent_media? +

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

Can I rate-limit upload_agent_media? +

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

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

upload_agent_media is provided by the BotUyo MCP Server MCP server (marcoar1/botuyo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.