jira_add_comment

THE RISK

Medium Risk

Why jira_add_comment needs a policy

Adding a comment creates new, reversible data in Jira. It modifies issue state by appending user-generated content but does not delete, execute code, move funds, or have irreversible consequences. This is a standard Write operation. Severity is medium because comment spam or malicious comments could disrupt team collaboration, but the action remains fully reversible (comments can be deleted or edited).

From the tool's definition Tool name 'jira_add_comment' and description 'Add a comment to a Jira issue' indicate creation of new comment data on an issue.

Documented attack patterns abuse exactly the kind of access jira_add_comment gives an agent:

POLICY

How to control jira_add_comment

PolicyLayer is an MCP gateway — it sits between your AI agents and Atlassian, and nothing reaches the server without passing your rules. This is the rule we recommend for jira_add_comment:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "jira_add_comment": {
      "limits": [
        {
          "counter": "jira_add_comment_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

jira_add_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.

Create a free account and register Atlassian — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Atlassian tools

Destructive confluence_delete_page Delete a page. By default, moves to trash. Use purge option for permanent deletion. Destructive jira_delete_board Delete a board. Warning: This is permanent and cannot be undone. All board configuration w Destructive jira_delete_issue Delete a Jira issue. This action cannot be undone unless the issue is in the trash. Destructive jira_delete_sprint Delete a sprint. Note: Can only delete sprints that have not been started (future state). Destructive jira_remove_issue_link Remove/delete a link between two issues. Requires the link ID. Write jira_link_to_epic Link multiple issues to an epic. Creates Epic-Story links between issues and epic. Write jira_rank_backlog_issues Rank/reorder issues in the backlog. Used to adjust issue priority order before sprint plan Write confluence_add_comment Add a footer comment to a page. Can be a top-level comment or a reply to another comment.

All 51 Atlassian tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about jira_add_comment

What does the jira_add_comment tool do? +

Add a comment to a Jira issue. Comments support plain text. It is categorised as a Write tool in the Atlassian 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_add_comment? +

Register the Atlassian MCP server in PolicyLayer and add a rule for jira_add_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 Atlassian. Nothing to install.

What risk level is jira_add_comment? +

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

Can I rate-limit jira_add_comment? +

Yes. Add a rate_limit block to the jira_add_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 jira_add_comment completely? +

Set action: deny in the PolicyLayer policy for jira_add_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 jira_add_comment? +

jira_add_comment is provided by the Atlassian MCP server (xuanxt/atlassian-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Atlassian tool call.

Start from Atlassian, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →