{
    "summary": [
        {
            "name": "hermes_sessions",
            "title": "Session metadata with user isolation",
            "primary": "id",
            "catelog": "entity"
        }
    ],
    "fields": [
        {
            "name": "id",
            "title": "Session ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "Unique session identifier"
        },
        {
            "name": "user_id",
            "title": "User ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "User who owns this session"
        },
        {
            "name": "session_title",
            "title": "Session Title",
            "type": "str",
            "length": 200,
            "nullable": "yes",
            "comments": "Human-readable session title"
        },
        {
            "name": "start_time",
            "title": "Start Time",
            "type": "timestamp",
            "nullable": "no",
            "comments": "Session start timestamp"
        },
        {
            "name": "end_time",
            "title": "End Time",
            "type": "timestamp",
            "nullable": "yes",
            "comments": "Session end timestamp"
        },
        {
            "name": "is_active",
            "title": "Is Active",
            "type": "short",
            "nullable": "no",
            "default": "1",
            "comments": "Whether session is active (1=true, 0=false)"
        },
        {
            "name": "metadata",
            "title": "Metadata",
            "type": "text",
            "nullable": "yes",
            "comments": "JSON metadata about the session"
        },
        {
            "name": "created_at",
            "title": "Created At",
            "type": "timestamp",
            "nullable": "no",
            "comments": "Creation timestamp"
        },
        {
            "name": "updated_at",
            "title": "Updated At",
            "type": "timestamp",
            "nullable": "no",
            "comments": "Last update timestamp"
        }
    ],
    "indexes": [
        {
            "name": "idx_hermes_sessions_user",
            "idxtype": "index",
            "idxfields": ["user_id", "start_time"]
        },
        {
            "name": "idx_hermes_sessions_active",
            "idxtype": "index",
            "idxfields": ["user_id", "is_active"]
        },
        {
            "name": "idx_hermes_sessions_time",
            "idxtype": "index",
            "idxfields": ["start_time", "end_time"]
        }
    ],
    "codes": []
}