workflows_featured_add · Slack MCP: Risk & Policy

WHAT IT DOES

What workflows_featured_add does on Slack

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

WHY IT NEEDS A POLICY

Why workflows_featured_add needs a policy

This tool creates or modifies data reversibly by adding workflows to a channel's featured list. It does not execute workflows, delete data, or move money. While it affects channel state, the change is reversible (workflows can be removed), making it a Write rather than Execute operation.

From the tool's definition Tool name 'workflows_featured_add' and description 'Add featured workflows to a channel' indicate creation/modification of channel metadata (featured workflows list).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

workflows_featured_add Rate-limited

workflows_featured_add 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": {
    "workflows_featured_add": {
      "limits": [
        {
          "counter": "workflows_featured_add_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Slack, so you can run agents against it safely.

FAQ

Questions about workflows_featured_add

What does the workflows_featured_add tool do? +

Add featured workflows to a channel. It is categorised as a Write tool in the Slack MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on workflows_featured_add? +

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

What risk level is workflows_featured_add? +

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

Can I rate-limit workflows_featured_add? +

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

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

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