conversations_close

What conversations_close does on Slack

AI agents use conversations_close 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 conversations_close is rated Medium

Closing a conversation is a state-modifying operation that changes channel settings but does not delete data or cause irreversible harm. It falls under Write category as it creates a modified state. Severity is medium because closing a conversation could disrupt communication workflows and affect multiple parties, but the action is typically reversible in Slack (channels/DMs can be reopened).

From the tool's definition Tool name is 'conversations_close' and description states it will 'Close a direct message or multi-party direct message.' The action of closing a conversation modifies the state of a channel/conversation by archiving or closing it, which is reversible…

The rule that runs conversations_close safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Slack, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For conversations_close, this is the rule to start with:

{
  "version": "1",
  "default": "deny",
  "tools": {
    "conversations_close": {
      "limits": [
        {
          "counter": "conversations_close_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

Questions about conversations_close