create_slack_reminder · Slack MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_slack_reminder does on Slack MCP Server

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

WHY IT NEEDS A POLICY

Why create_slack_reminder needs a policy

This tool creates a reminder—a reversible, non-destructive modification to workspace state. Reminders can be edited or deleted without permanent loss. No code execution, data deletion, or financial impact occurs. The blast radius is minimal since a reminder only affects the targeted user(s) and can be easily undone.

From the tool's definition Tool name 'create_slack_reminder' and description 'Criar lembrete no Slack' (Create reminder in Slack) indicates creation of a reminder object within Slack.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_slack_reminder Rate-limited

create_slack_reminder 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_slack_reminder": {
      "limits": [
        {
          "counter": "create_slack_reminder_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 Slack MCP Server, so you can run agents against it safely.

FAQ

Questions about create_slack_reminder

What does the create_slack_reminder tool do? +

Criar lembrete no Slack. It is categorised as a Write tool in the Slack 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_slack_reminder? +

Register the Slack MCP Server MCP server in PolicyLayer and add a rule for create_slack_reminder: 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 Slack MCP Server. Nothing to install.

What risk level is create_slack_reminder? +

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

Can I rate-limit create_slack_reminder? +

Yes. Add a rate_limit block to the create_slack_reminder 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_slack_reminder completely? +

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

create_slack_reminder is provided by the Slack MCP Server MCP server (will2023a/mcp-slack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.