cvat_create_task · CVAT MCP: Risk & Policy

WHAT IT DOES

What cvat_create_task does on CVAT MCP

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

WHY IT NEEDS A POLICY

Why cvat_create_task needs a policy

This tool creates a new annotation task resource in CVAT via a POST API call. Creating a task is a Write operation—it modifies the system state by adding a new entity, but the action is reversible (tasks can be deleted or updated).

From the tool's definition Tool description states "Create a CVAT task using POST /api/tasks". POST operation creates new data (a task) that is reversible through deletion or modification. The tool does not execute arbitrary code, delete data irreversibly, or move money.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

cvat_create_task Rate-limited

cvat_create_task 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": {
    "cvat_create_task": {
      "limits": [
        {
          "counter": "cvat_create_task_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 CVAT MCP, so you can run agents against it safely.

FAQ

Questions about cvat_create_task

What does the cvat_create_task tool do? +

Create a CVAT task using POST /api/tasks. Use cvat_attach_task_data afterward to upload images or videos. It is categorised as a Write tool in the CVAT MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on cvat_create_task? +

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

What risk level is cvat_create_task? +

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

Can I rate-limit cvat_create_task? +

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

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

cvat_create_task is provided by the CVAT MCP server (jangjs1216/cvat-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.