create_comment · Raalarcon Jira MCP: Risk & Policy

WHAT IT DOES

What create_comment does on Raalarcon Jira

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

WHY IT NEEDS A POLICY

Why create_comment needs a policy

Creating a comment is a write operation that adds new data to a Jira issue reversibly. While it modifies the issue state, the action is not destructive—comments can be edited or deleted. It does not execute code, trigger financial transactions, or irreversibly delete data. The low severity reflects minimal blast radius: misuse would result in unwanted comments rather than data loss or system compromise.

From the tool's definition Tool description states 'Add a comment to a Jira issue' and 'Returns comment ID and creation details', indicating content creation that is reversible (comments can be deleted via the sibling delete_comment tool).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_comment Rate-limited

create_comment 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": {
    "create_comment": {
      "limits": [
        {
          "counter": "create_comment_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 Raalarcon Jira, so you can run agents against it safely.

FAQ

Questions about create_comment

What does the create_comment tool do? +

Add a comment to a Jira issue. Supports plain text or Markdown for rich formatting (headings, lists, code blocks, links, etc.). Markdown is automatically converted to ADF. For mentions, use format: @[accountId:displayName] (get accountId from get_users tool). Returns comment ID and creation details. It is categorised as a Write tool in the Raalarcon Jira MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_comment? +

Register the Raalarcon Jira MCP server in PolicyLayer and add a rule for create_comment: 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 Raalarcon Jira. Nothing to install.

What risk level is create_comment? +

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

Can I rate-limit create_comment? +

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

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

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