do_droplet_action · Cargoshipper MCP: Risk & Policy

WHAT IT DOES

What do_droplet_action does on Cargoshipper

AI agents invoke do_droplet_action to trigger actions in Cargoshipper. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why do_droplet_action needs a policy

Performing actions on a DigitalOcean droplet covers a wide range of operations such as rebooting, shutting down, rebuilding, or resizing a VM. These are external operations with real infrastructure impact. While some actions may be reversible (reboot), others (rebuild, restore) can cause data loss or significant disruption.

From the tool's definition "Perform an action on a DigitalOcean droplet" — triggering actions on cloud compute instances (reboot, power off, rebuild, resize, etc.)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

do_droplet_action Rate-limited

do_droplet_action stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "do_droplet_action": {
      "limits": [
        {
          "counter": "do_droplet_action_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Cargoshipper, so you can run agents against it safely.

FAQ

Questions about do_droplet_action

What does the do_droplet_action tool do? +

Perform an action on a DigitalOcean droplet. It is categorised as a Execute tool in the Cargoshipper MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on do_droplet_action? +

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

What risk level is do_droplet_action? +

do_droplet_action is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit do_droplet_action? +

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

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

do_droplet_action is provided by the Cargoshipper MCP server (scarr7981/cargoshipper-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.