Slack get messages

{
  "type": "object",
  "properties": {
    "channel": {
      "type": "string",
      "description": "Channel ID"
    },
    "limit": {
      "type": "number",
      "description": "Max messages (1-1000)"
    },
    "oldest": {
      "type": "string",
      "description": "Only messages after this timestamp"
    }
  },
  "required": [
    "channel"
  ],
  "description": "Input schema for the slack__get_messages tool."
}