task_comments_add

Add a comment to a task

SERVERVikunja SOURCE0xk3vin/vikunja-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xk3vin-vikunja-mcp/task-comments-add.md

WHAT IT DOES

What task_comments_add does on Vikunja

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

RISK

Why task_comments_add is rated Medium

This tool creates new comment records, which is a reversible write operation. Comments can typically be edited or deleted. The action has minimal blast radius—adding comments does not modify task data itself, delete records, execute code, or trigger financial transactions. This is a straightforward Write-category operation with low severity.

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

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs task_comments_add safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Vikunja, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For task_comments_add, this is the rule to start with:

task_comments_add Rate-limited

task_comments_add 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": {
    "task_comments_add": {
      "limits": [
        {
          "counter": "task_comments_add_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Vikunja, apply this rule, and every task_comments_add call is checked against it from then on.

FAQ

Questions about task_comments_add

What does the task_comments_add tool do? +

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

How do I enforce a policy on task_comments_add? +

Register the Vikunja MCP server in PolicyLayer and add a rule for task_comments_add: 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 Vikunja. Nothing to install.

What risk level is task_comments_add? +

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

Can I rate-limit task_comments_add? +

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

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

task_comments_add is provided by the Vikunja MCP server (0xk3vin/vikunja-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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