update_issue · Mantis MCP: Risk & Policy

WHAT IT DOES

What update_issue does on Mantis

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

WHY IT NEEDS A POLICY

Why update_issue needs a policy

This tool creates or modifies data reversibly—it updates an issue's properties without deleting data. The changes can typically be reverted by subsequent updates. Given the Mantis bug-tracking context and the presence of sibling tools like create_issue and add_issue_note, this is a standard Write operation.

From the tool's definition Tool name 'update_issue' and description '修改一個 Mantis 問題' (modify a Mantis issue) indicate the tool updates/modifies existing issue data in the bug tracking system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_issue Rate-limited

update_issue 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": {
    "update_issue": {
      "limits": [
        {
          "counter": "update_issue_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 Mantis, so you can run agents against it safely.

FAQ

Questions about update_issue

What does the update_issue tool do? +

修改一個 Mantis 問題. It is categorised as a Write tool in the Mantis MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_issue? +

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

What risk level is update_issue? +

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

Can I rate-limit update_issue? +

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

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

update_issue is provided by the Mantis MCP server (mantis-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.