submit_bug · Ubuntu MCP Servers MCP: Risk & Policy

WHAT IT DOES

What submit_bug does on Ubuntu MCP Servers

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

WHY IT NEEDS A POLICY

Why submit_bug needs a policy

This tool creates a new bug report, which is a reversible write operation. It modifies state by adding data to the Ubuntu bug tracking system but does not delete, destroy, or execute arbitrary code. The severity is medium because bugspam or malicious bug submissions could disrupt the bug tracker and waste developer resources, but the action is reversible (submitted bugs can be closed/deleted).

From the tool's definition Tool name 'submit_bug' and description 'Submit a new bug to the given provider' indicate creation of new data (a bug report) in an external system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

submit_bug Rate-limited

submit_bug 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": {
    "submit_bug": {
      "limits": [
        {
          "counter": "submit_bug_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 Ubuntu MCP Servers, so you can run agents against it safely.

FAQ

Questions about submit_bug

What does the submit_bug tool do? +

Submit a new bug to the given provider. It is categorised as a Write tool in the Ubuntu MCP Servers MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on submit_bug? +

Register the Ubuntu MCP Servers MCP server in PolicyLayer and add a rule for submit_bug: 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 Ubuntu MCP Servers. Nothing to install.

What risk level is submit_bug? +

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

Can I rate-limit submit_bug? +

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

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

submit_bug is provided by the Ubuntu MCP Servers MCP server (lvoytek/ubuntu-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.