smartsheet_add_comment · Smartsheet MCP Server MCP

WHAT IT DOES

What smartsheet_add_comment does on Smartsheet MCP Server

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

WHY IT NEEDS A POLICY

Why smartsheet_add_comment needs a policy

Adding a comment creates new, reversible data within Smartsheet. While it modifies the discussion thread, comments can be deleted (as evidenced by the sibling tool smartsheet_delete_comment), making this a Write operation rather than Destructive. The blast radius is low—a misused comment causes minimal harm and is easily remedied.

From the tool's definition Tool adds a comment (creates new data) to an existing discussion. Description states 'Add a reply comment' and returns 'New comment ID and creation timestamp', confirming data creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

smartsheet_add_comment Rate-limited

smartsheet_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": {
    "smartsheet_add_comment": {
      "limits": [
        {
          "counter": "smartsheet_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 Smartsheet MCP Server, so you can run agents against it safely.

FAQ

Questions about smartsheet_add_comment

What does the smartsheet_add_comment tool do? +

Add a reply comment to an existing discussion on a sheet. Args: - sheet_id (number): Target sheet ID - discussion_id (number): Target discussion ID - comment_text (string): Text of the comment to add Returns: New comment ID and creation timestamp. It is categorised as a Write tool in the Smartsheet 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 smartsheet_add_comment? +

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

What risk level is smartsheet_add_comment? +

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

Can I rate-limit smartsheet_add_comment? +

Yes. Add a rate_limit block to the smartsheet_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 smartsheet_add_comment completely? +

Set action: deny in the PolicyLayer policy for smartsheet_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 smartsheet_add_comment? +

smartsheet_add_comment is provided by the Smartsheet MCP Server MCP server (prmbr42-bot/smartsheet-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.