smartsheet_add_columns · Smartsheet MCP Server MCP

WHAT IT DOES

What smartsheet_add_columns does on Smartsheet MCP Server

AI agents use smartsheet_add_columns 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_columns needs a policy

Adding columns to a sheet modifies the structure of data reversibly. This is a Write operation—it creates new schema elements but does not execute arbitrary code, delete data, or move money. Severity is medium because adding columns could affect dependent formulas, reports, or integrations, but the operation is non-destructive and reversible (columns can be removed).

From the tool's definition Tool name 'smartsheet_add_columns' and description state it 'Add[s] one or more new columns to a Smartsheet sheet.' This is a create/modify operation that alters sheet structure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

smartsheet_add_columns Rate-limited

smartsheet_add_columns 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_columns": {
      "limits": [
        {
          "counter": "smartsheet_add_columns_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_columns

What does the smartsheet_add_columns tool do? +

Add one or more new columns to a Smartsheet sheet. Supported column types: TEXT_NUMBER, DATE, DATETIME, PICKLIST, CHECKBOX, CONTACT_LIST, DURATION, PREDECESSOR, AUTO_NUMBER, ABSTRACT_DATETIME. Picklist/dropdown columns require an. 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_columns? +

Register the Smartsheet MCP Server MCP server in PolicyLayer and add a rule for smartsheet_add_columns: 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_columns? +

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

Can I rate-limit smartsheet_add_columns? +

Yes. Add a rate_limit block to the smartsheet_add_columns 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_columns completely? +

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

smartsheet_add_columns 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.