list_workspace_sheets

THE RISK

Low Risk

Why list_workspace_sheets needs a policy

The tool performs a read-only operation that retrieves information about sheets within a workspace. It has no side effects, does not modify data, does not execute code or commands, does not delete anything, and does not involve financial transactions. The blast radius of misuse is minimal — an attacker could only discover what sheets exist in a workspace, which is low-impact information disclosure.

From the tool's definition Tool name is 'list_workspace_sheets' and description states 'List all sheets in a workspace' — this is a query/retrieval operation with no modification, creation, deletion, or execution of external systems.

Documented attack patterns abuse exactly the kind of access list_workspace_sheets gives an agent:

POLICY

How to control list_workspace_sheets

PolicyLayer is an MCP gateway — it sits between your AI agents and Smartsheet MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_workspace_sheets:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_workspace_sheets": {}
  }
}

list_workspace_sheets is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Smartsheet MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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All 34 Smartsheet MCP Server tools →

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_workspace_sheets

What does the list_workspace_sheets tool do? +

List all sheets in a workspace. It is categorised as a Read tool in the Smartsheet MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_workspace_sheets? +

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

list_workspace_sheets is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_workspace_sheets? +

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

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

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

Enforce policy on every Smartsheet MCP Server tool call.

Start from Smartsheet MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →