slack_enable_public_url · Mcp Gmail MCP: Risk & Policy

WHAT IT DOES

What slack_enable_public_url does on Mcp Gmail

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

WHY IT NEEDS A POLICY

Why slack_enable_public_url needs a policy

The tool name suggests creating or modifying a Slack feature (public URL), which constitutes a Write action that changes configuration state. The empty description weakens confidence significantly, but the apparent intent is to enable/create something reversible rather than delete or execute arbitrary code. Given the Gmail/GitHub context mismatch with Slack naming, and without confirmation, confidence is moderate.

From the tool's definition Tool name 'slack_enable_public_url' indicates it enables or creates a public URL, likely in Slack, which modifies sharing settings or creates new endpoints. Description is empty, limiting confidence.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

slack_enable_public_url Rate-limited

slack_enable_public_url 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": {
    "slack_enable_public_url": {
      "limits": [
        {
          "counter": "slack_enable_public_url_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 Mcp Gmail, so you can run agents against it safely.

FAQ

Questions about slack_enable_public_url

What does the slack_enable_public_url tool do? +

slack_enable_public_url. It is categorised as a Write tool in the Mcp Gmail MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on slack_enable_public_url? +

Register the Mcp Gmail MCP server in PolicyLayer and add a rule for slack_enable_public_url: 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 Mcp Gmail. Nothing to install.

What risk level is slack_enable_public_url? +

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

Can I rate-limit slack_enable_public_url? +

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

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

slack_enable_public_url is provided by the Mcp Gmail MCP server (@monsoft/mcp-gmail). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.