{
  "name": "hermes_sessions",
  "fields": [
    {
      "name": "id",
      "type": "str",
      "size": 64,
      "primary_key": true,
      "nullable": false,
      "description": "Unique session identifier"
    },
    {
      "name": "user_id",
      "type": "str",
      "size": 64,
      "nullable": false,
      "description": "User identifier for multi-user isolation"
    },
    {
      "name": "title",
      "type": "str",
      "size": 255,
      "nullable": true,
      "description": "Session title"
    },
    {
      "name": "preview",
      "type": "text",
      "nullable": true,
      "description": "Session preview text"
    },
    {
      "name": "started_at",
      "type": "datetime",
      "nullable": false,
      "description": "Session start timestamp"
    },
    {
      "name": "ended_at",
      "type": "datetime",
      "nullable": true,
      "description": "Session end timestamp"
    },
    {
      "name": "tags",
      "type": "text",
      "nullable": true,
      "description": "Session tags (JSON array)"
    }
  ],
  "indexes": [
    {
      "name": "idx_hermes_sessions_user",
      "fields": ["user_id"]
    },
    {
      "name": "idx_hermes_sessions_started",
      "fields": ["started_at"]
    },
    {
      "name": "idx_hermes_sessions_title",
      "fields": ["title"]
    }
  ],
  "description": "Session metadata storage for Hermes Agent with multi-user support"
}