cloudron_cancel_task · Mcp Cloudron MCP: Risk & Policy

WHAT IT DOES

What cloudron_cancel_task does on Mcp Cloudron

AI agents invoke cloudron_cancel_task to trigger actions in Mcp Cloudron. 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 cloudron_cancel_task needs a policy

Cancelling a running async operation is an irreversible action that terminates an in-progress task (e.g., backup, update, migration). While not purely destructive (data isn't deleted), it can cause partial operations to fail or leave systems in inconsistent states. It's an active intervention that triggers an external operation with potentially significant consequences, placing it in Execute.

From the tool's definition Cancel a running async operation (kill switch). Returns updated task status with state

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

cloudron_cancel_task Rate-limited

cloudron_cancel_task 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": {
    "cloudron_cancel_task": {
      "limits": [
        {
          "counter": "cloudron_cancel_task_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 Mcp Cloudron, so you can run agents against it safely.

FAQ

Questions about cloudron_cancel_task

What does the cloudron_cancel_task tool do? +

Cancel a running async operation (kill switch). Returns updated task status with state. It is categorised as a Execute tool in the Mcp Cloudron MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on cloudron_cancel_task? +

Register the Mcp Cloudron MCP server in PolicyLayer and add a rule for cloudron_cancel_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 Mcp Cloudron. Nothing to install.

What risk level is cloudron_cancel_task? +

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

Can I rate-limit cloudron_cancel_task? +

Yes. Add a rate_limit block to the cloudron_cancel_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 cloudron_cancel_task completely? +

Set action: deny in the PolicyLayer policy for cloudron_cancel_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 cloudron_cancel_task? +

cloudron_cancel_task is provided by the Mcp Cloudron MCP server (serenichron/mcp-cloudron). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.