jira_comment_update_tool · Jira MCP Server MCP

WHAT IT DOES

What jira_comment_update_tool does on Jira MCP Server

AI agents use jira_comment_update_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 jira_comment_update_tool needs a policy

The tool modifies existing comment data reversibly. This is a Write operation—it creates or modifies data that can be undone (comments can be edited back or deleted). The severity is medium because a misused tool could add misleading or sensitive information to issue comments, affecting team communication and issue tracking, but the change is reversible and scoped to a single comment.

From the tool's definition Tool name is 'jira_comment_update_tool' which indicates modification of existing data (update). The server description confirms the tool enables 'comments' interaction within Jira issue management.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

jira_comment_update_tool Rate-limited

jira_comment_update_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": {
    "jira_comment_update_tool": {
      "limits": [
        {
          "counter": "jira_comment_update_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 jira_comment_update_tool

What does the jira_comment_update_tool tool do? +

jira_comment_update_tool. 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 jira_comment_update_tool? +

Register the Jira MCP Server MCP server in PolicyLayer and add a rule for jira_comment_update_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 jira_comment_update_tool? +

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

Can I rate-limit jira_comment_update_tool? +

Yes. Add a rate_limit block to the jira_comment_update_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 jira_comment_update_tool completely? +

Set action: deny in the PolicyLayer policy for jira_comment_update_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 jira_comment_update_tool? +

jira_comment_update_tool is provided by the Jira MCP Server MCP server (troylar/jira-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.