reset_webhook_secret · Smartsheet MCP Server MCP

WHAT IT DOES

What reset_webhook_secret does on Smartsheet MCP Server

AI agents use reset_webhook_secret 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 reset_webhook_secret needs a policy

Resetting a webhook secret modifies security credentials for the webhook, which is a write operation that changes existing data. However, it carries high severity because resetting the shared secret could break existing webhook integrations (any consumer relying on the old secret would fail validation), and could potentially be misused to intercept or disrupt webhook communications by causing authentication failures.

From the tool's definition Resets the shared secret for a webhook

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

reset_webhook_secret Rate-limited

reset_webhook_secret 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": {
    "reset_webhook_secret": {
      "limits": [
        {
          "counter": "reset_webhook_secret_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 reset_webhook_secret

What does the reset_webhook_secret tool do? +

Resets the shared secret for a webhook. 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 reset_webhook_secret? +

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

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

Can I rate-limit reset_webhook_secret? +

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

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

reset_webhook_secret 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.