create_cell_link · Smartsheet MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_cell_link does on Smartsheet MCP Server

AI agents use create_cell_link 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 create_cell_link needs a policy

This tool creates new data relationships (cell links) within Smartsheet, which constitutes a Write operation. It modifies the sheet structure by adding a synchronized cell reference, but the operation is reversible (links can be removed).

From the tool's definition The tool 'create_cell_link' creates a cell link that syncs a cell, which modifies the structure and relationships within Smartsheet data by establishing a new cross-sheet or intra-sheet reference. This is a reversible data modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_cell_link Rate-limited

create_cell_link 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": {
    "create_cell_link": {
      "limits": [
        {
          "counter": "create_cell_link_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 create_cell_link

What does the create_cell_link tool do? +

Creates a cell link that syncs a cell. 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 create_cell_link? +

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

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

Can I rate-limit create_cell_link? +

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

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

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