comment · Proofhub MCP: Risk & Policy

WHAT IT DOES

What comment does on Proofhub

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

WHY IT NEEDS A POLICY

Why comment needs a policy

This tool creates new comment data within a task, a reversible modification. It does not delete, execute arbitrary operations, or involve financial transactions. The ability to add comments to tasks is a typical write operation.

From the tool's definition Tool description states 'Add a comment to a task', which is a create/modify operation that adds new data to an existing task.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

comment Rate-limited

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": {
    "comment": {
      "limits": [
        {
          "counter": "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 Proofhub, so you can run agents against it safely.

FAQ

Questions about comment

What does the comment tool do? +

Add a comment to a task (resolves the internal id automatically). project and todolist default to context. It is categorised as a Write tool in the Proofhub MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on comment? +

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

What risk level is comment? +

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

Can I rate-limit comment? +

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

Set action: deny in the PolicyLayer policy for 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 comment? +

comment is provided by the Proofhub MCP server (yashmody/proofhub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.