```json { "action": "final", "content": "Based on the dataset profile and the raw data samples, here are the columns, their data types, and their meanings. The dataset appears to be ingested from a formatted spreadsheet or report, meaning some columns contain embedded headers, totals, and section dividers alongside the actual data.\n\n### Core Metrics\n* **`Day`** (VARCHAR): Represents the time period. It contains days of the week (e.g., \"Thu\", \"Fri\"), specific dates (e.g., \"23-Jun\"), as well as report artifacts like \"TOTAL\" or \"=== DAILY TREND — LAST 30 DAYS ===\".\n* **`Total Calls`** (VARCHAR): The total number of calls received during the period.\n* **`AI Handled`** (VARCHAR): The number of calls successfully resolved by the AI routing system.\n* **`Human Handled`** (VARCHAR): The number of calls escalated to or handled by human agents.\n* **`Voicemail`** (VARCHAR): The number of calls that went to voicemail.\n* **`AI Resolution %`** (VARCHAR): The percentage of total calls resolved by the AI (e.g., \"78.80%\").\n* **`Human %`** (VARCHAR): The percentage of total calls handled by human agents (e.g., \"21.20%\").\n\n### Unnamed / Shifted Columns\nBecause of the spreadsheet-like structure of the source file, some additional metrics were ingested into unnamed columns. Based on their embedded headers and values:\n* **`_unnamed_7`** (VARCHAR): Represents **Duration (m:ss)**. It contains the call duration in minutes and seconds (e.g., \"1:59\", \"4:30\").\n* **`_unnamed_8`** (VARCHAR): Represents **Sentiment Score**. It contains numerical scores evaluating the sentiment of the call (e.g., \"0.698\", \"0.88\").\n* **`_unnamed_9`** (VARCHAR): Represents **Sentiment Label**. It contains categorical text labels for the sentiment (e.g., \"Neutral\", \"Positive\").\n\n### System Metadata\nThese columns are automatically appended during ingestion to track data lineage:\n* **`_ingestion_timestamp`** (TIMESTAMP): The exact date and time the record was loaded into the database.\n* **`_batch_id`** (VARCHAR): The identifier for the specific ingestion job (e.g., \"batch_bc2086992fe4\").\n* **`_source_file`** (VARCHAR): The file path of the original CSV file that was ingested.\n* **`_source_system`** (VARCHAR): The system from which the data originated (e.g., \"api\")." } ```