youtrack_add_comment · YouTrack MCP Server MCP

WHAT IT DOES

What youtrack_add_comment does on YouTrack MCP Server

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

WHY IT NEEDS A POLICY

Why youtrack_add_comment needs a policy

Adding a comment creates new data reversibly—comments can be deleted (as evidenced by the sibling tool 'youtrack_delete_comment'), making this a Write operation rather than Destructive. The blast radius is medium because a misconfigured agent could spam comments, disrupt team communication, or add sensitive information to tickets, but the operation is reversible and doesn't delete or directly execute external code.

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

youtrack_add_comment Rate-limited

youtrack_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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "youtrack_add_comment": {
      "limits": [
        {
          "counter": "youtrack_add_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 YouTrack MCP Server, so you can run agents against it safely.

FAQ

Questions about youtrack_add_comment

What does the youtrack_add_comment tool do? +

Add a comment to an issue. It is categorised as a Write tool in the YouTrack 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 youtrack_add_comment? +

Register the YouTrack MCP Server MCP server in PolicyLayer and add a rule for youtrack_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 YouTrack MCP Server. Nothing to install.

What risk level is youtrack_add_comment? +

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

Can I rate-limit youtrack_add_comment? +

Yes. Add a rate_limit block to the youtrack_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 youtrack_add_comment completely? +

Set action: deny in the PolicyLayer policy for youtrack_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 youtrack_add_comment? +

youtrack_add_comment is provided by the YouTrack MCP Server MCP server (lucyfuur94/youtrack-integration). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.