workflows_featured_set · Slack MCP: Risk & Policy

WHAT IT DOES

What workflows_featured_set does on Slack

AI agents use workflows_featured_set 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_set needs a policy

The tool name strongly suggests a write operation that modifies which workflows are featured in a Slack workspace. While the description is empty (reducing confidence), the naming convention and server context (full Slack access) indicate this creates or modifies workspace configuration. This is Write rather than Execute because it appears to set a configuration property rather than run arbitrary code.

From the tool's definition Tool name 'workflows_featured_set' suggests setting or modifying featured workflows in Slack. The parent server provides 'full access to Slack' including channels, messages, and workflows.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

workflows_featured_set Rate-limited

workflows_featured_set 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_set": {
      "limits": [
        {
          "counter": "workflows_featured_set_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, so you can run agents against it safely.

FAQ

Questions about workflows_featured_set

What does the workflows_featured_set tool do? +

workflows_featured_set. 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_set? +

Register the Slack MCP server in PolicyLayer and add a rule for workflows_featured_set: 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_set? +

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

Can I rate-limit workflows_featured_set? +

Yes. Add a rate_limit block to the workflows_featured_set 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_set completely? +

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

workflows_featured_set 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.