add_comment_tool · JIRA MCP Server MCP: Risk & Policy

WHAT IT DOES

What add_comment_tool does on JIRA MCP Server

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

WHY IT NEEDS A POLICY

Why add_comment_tool needs a policy

This tool creates new data (a comment) in JIRA, modifying the issue's state by appending information. While reversible (comments can be deleted or edited), it represents a Write operation that changes issue content. Severity is medium because misuse could spam issues with irrelevant comments, but the impact is limited to a single issue and is easily remediated.

From the tool's definition Tool name 'add_comment_tool' and description 'Add a comment to a JIRA issue' indicate creation of new comment data on an existing issue. Comments are reversible content that can be edited or deleted by authorized users.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_comment_tool Rate-limited

add_comment_tool 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": {
    "add_comment_tool": {
      "limits": [
        {
          "counter": "add_comment_tool_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 JIRA MCP Server, so you can run agents against it safely.

FAQ

Questions about add_comment_tool

What does the add_comment_tool tool do? +

Add a comment to a JIRA issue. It is categorised as a Write tool in the JIRA MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_comment_tool? +

Register the JIRA MCP Server MCP server in PolicyLayer and add a rule for add_comment_tool: 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 JIRA MCP Server. Nothing to install.

What risk level is add_comment_tool? +

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

Can I rate-limit add_comment_tool? +

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

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

add_comment_tool is provided by the JIRA MCP Server MCP server (klauseduard/vibe-coded-jira-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.