upload_video · Reka Vision MCP Server MCP: Risk & Policy

WHAT IT DOES

What upload_video does on Reka Vision MCP Server

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

WHY IT NEEDS A POLICY

Why upload_video needs a policy

Uploading video files creates new data in the system. While reversible (evidenced by the presence of 'delete_video' as a sibling tool), the upload operation modifies the server's state by adding content. This is a Write-category operation.

From the tool's definition Tool name 'upload_video' combined with server description stating the server 'Enables AI agents to upload, index, search, and analyze videos' indicates file creation/upload functionality.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upload_video Rate-limited

upload_video 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_video": {
      "limits": [
        {
          "counter": "upload_video_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 Reka Vision MCP Server, so you can run agents against it safely.

FAQ

Questions about upload_video

What does the upload_video tool do? +

upload_video. It is categorised as a Write tool in the Reka Vision 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_video? +

Register the Reka Vision MCP Server MCP server in PolicyLayer and add a rule for upload_video: 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 Reka Vision MCP Server. Nothing to install.

What risk level is upload_video? +

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

Can I rate-limit upload_video? +

Yes. Add a rate_limit block to the upload_video 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_video completely? +

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

upload_video is provided by the Reka Vision MCP Server MCP server (reka-ai/reka-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.