set_drive_owners · Huly MCP: Risk & Policy

WHAT IT DOES

What set_drive_owners does on Huly

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

WHY IT NEEDS A POLICY

Why set_drive_owners needs a policy

An AI agent can call set_drive_owners faster than any human can review — one bad instruction and it creates or modifies resources in Huly by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_drive_owners Rate-limited

set_drive_owners 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": {
    "set_drive_owners": {
      "limits": [
        {
          "counter": "set_drive_owners_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 Huly, so you can run agents against it safely.

FAQ

Questions about set_drive_owners

What does the set_drive_owners tool do? +

Replace owners on an existing Drive. Owners accept account UUIDs, exact emails, or exact person names. By default, each owner is also ensured as a Drive member. Pass owners=[] to clear owners. It is categorised as a Write tool in the Huly MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_drive_owners? +

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

What risk level is set_drive_owners? +

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

Can I rate-limit set_drive_owners? +

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

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

set_drive_owners is provided by the Huly MCP server (@firfi/huly-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.