{
  "sessionId": "a4c15690-4f5b-4d42-9cb0-ded73814a54d",
  "projectHash": "c4ece9c032ac20d038bbd73e9aa5f86cb3fd24c826b8e99b6edcd77db288fcb1",
  "startTime": "2026-01-28T16:27:36.892Z",
  "lastUpdated": "2026-02-11T17:20:00.436Z",
  "messages": [
    {
      "id": "810ab1f6-a0f8-4602-82cd-f7920ffc7504",
      "timestamp": "2026-01-28T16:27:36.893Z",
      "type": "user",
      "content": "write a script to summarise a file like ecsv_12_2025.csv sumarise based on linkedaccount"
    },
    {
      "id": "91dbc5d9-7620-48f6-9e42-31bf871447f1",
      "timestamp": "2026-01-28T16:28:31.433Z",
      "type": "info",
      "content": "Switched to fallback model gemini-3-flash-preview"
    },
    {
      "id": "26262f69-f8d6-4a97-affe-8c6baf8cec34",
      "timestamp": "2026-01-28T16:28:49.502Z",
      "type": "gemini",
      "content": "I will read the first few lines of `ecsv_12_2025.csv` to understand its structure and column names.",
      "thoughts": [
        {
          "subject": "Assessing the Data Structure",
          "description": "I'm now diving into the `ecsv_12_2025.csv` file, to understand the layout. I need to figure out how the data is organized. My primary goal is to determine the column names and data types, especially the `linkedaccount` field. I will need to understand what the different values in this column mean.",
          "timestamp": "2026-01-28T16:28:47.714Z"
        },
        {
          "subject": "Mapping the Approach",
          "description": "I've sketched out the initial steps for the script. My plan is to start with a peek at the CSV structure, particularly the column names, using `pandas`. Following this, I'll leverage `pandas` for grouping by `linkedaccount` and calculating the aggregate of suitable columns. I anticipate needing to handle potential data type inconsistencies.",
          "timestamp": "2026-01-28T16:28:49.208Z"
        }
      ],
      "tokens": {
        "input": 21105,
        "output": 54,
        "cached": 0,
        "thoughts": 220,
        "tool": 0,
        "total": 21379
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "read_file-1769617729493-ca62180ca6ba48",
          "name": "read_file",
          "args": {
            "limit": 5,
            "file_path": "ecsv_12_2025.csv"
          },
          "result": [
            {
              "functionResponse": {
                "id": "read_file-1769617729493-ca62180ca6ba48",
                "name": "read_file",
                "response": {
                  "output": "\nIMPORTANT: The file content has been truncated.\nStatus: Showing lines 1-5 of 6106 total lines.\nAction: To read more of the file, you can use the 'offset' and 'limit' parameters in a subsequent 'read_file' call. For example, to read the next section of the file, use offset: 5.\n\n--- FILE CONTENT (truncated) ---\n\"InvoiceID\",\"PayerAccountId\",\"LinkedAccountId\",\"RecordType\",\"RecordID\",\"BillingPeriodStartDate\",\"BillingPeriodEndDate\",\"InvoiceDate\",\"PayerAccountName\",\"LinkedAccountName\",\"TaxationAddress\",\"PayerPONumber\",\"ProductCode\",\"ProductName\",\"SellerOfRecord\",\"UsageType\",\"Operation\",\"RateId\",\"ItemDescription\",\"UsageStartDate\",\"UsageEndDate\",\"UsageQuantity\",\"BlendedRate\",\"CurrencyCode\",\"CostBeforeTax\",\"Credits\",\"TaxAmount\",\"TaxType\",\"TotalCost\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-549\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-DEL1-AWS-In-Bytes\",\"\",\"288403813169\",\"$0.00 per GB - EU (London) data transfer from India (Delhi)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000102\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-548\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonRDS\",\"Amazon Relational Database Service\",\"Amazon Web Services EMEA SARL\",\"EU-RDS:GP2-Storage\",\"CreateDBInstance:0002\",\"330631478562\",\"$0.127 per GB-month of provisioned gp2 storage running MySQL\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"24.99999960\",\"\",\"USD\",\"3.17\",\"0.0\",\"0.633979\",\"VAT\",\"3.803979\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-547\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"USE1-USW1-AWS-Out-Bytes\",\"\",\"288403836170\",\"$0.02 per GB - US East (Northern Virginia) data transfer to US West (Northern California)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00329128\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-546\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlobalAccelerator\",\"AWS Global Accelerator\",\"Amazon Web Services EMEA SARL\",\"EU-AP-IN-Bytes-Internet\",\"Non-dominant\",\"62279337567\",\"$0 per GB - DT-Premium-from-Asia-Pacific-Internet-clients-in-to-Europe-regions\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"3.54829929\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\""
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:28:49.548Z",
          "resultDisplay": "Read lines 1-5 of 6106 from ecsv_12_2025.csv",
          "displayName": "ReadFile",
          "description": "Reads and returns the content of a specified file. If the file is large, the content will be truncated. The tool's response will clearly indicate if truncation has occurred and will provide details on how to read more of the file using the 'offset' and 'limit' parameters. Handles text, images (PNG, JPG, GIF, WEBP, SVG, BMP), audio files (MP3, WAV, AIFF, AAC, OGG, FLAC), and PDF files. For text files, it can read specific line ranges.",
          "renderOutputAsMarkdown": true
        }
      ]
    },
    {
      "id": "dc5bccf7-60b2-420a-8388-68e6a08c4872",
      "timestamp": "2026-01-28T16:29:08.448Z",
      "type": "gemini",
      "content": "I'll examine `service-spend-by-account.py` to understand the existing conventions for billing scripts in this project.",
      "thoughts": [
        {
          "subject": "Planning Script Execution",
          "description": "I'm currently outlining the script's structure. It'll use pandas to handle the CSV data, specifically grouping by linked account ID and name to sum the total costs. The initial implementation will focus on these core aggregations.",
          "timestamp": "2026-01-28T16:29:07.323Z"
        },
        {
          "subject": "Structuring Data Analysis Script",
          "description": "I'm now thinking about how to handle the CSV's columns, specifically `LinkedAccountId`, `LinkedAccountName`, `TotalCost`, `CostBeforeTax`, `TaxAmount`, and `ProductName`. I'm leaning toward writing a `summarize_billing.py` script. Pandas will be perfect for grouping by account and summing the total cost. I'll also look at similar scripts, to maintain consistency.",
          "timestamp": "2026-01-28T16:29:08.161Z"
        }
      ],
      "tokens": {
        "input": 15708,
        "output": 46,
        "cached": 0,
        "thoughts": 162,
        "tool": 0,
        "total": 15916
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "read_file-1769617748442-895b8b0a17b858",
          "name": "read_file",
          "args": {
            "file_path": "service_spend_by_account.py"
          },
          "result": [
            {
              "functionResponse": {
                "id": "read_file-1769617748442-895b8b0a17b858",
                "name": "read_file",
                "response": {
                  "error": "File not found: /Users/bob/git/dxw/aws-stuff/service_spend_by_account.py"
                }
              }
            }
          ],
          "status": "error",
          "timestamp": "2026-01-28T16:29:08.452Z",
          "resultDisplay": "File not found: /Users/bob/git/dxw/aws-stuff/service_spend_by_account.py",
          "displayName": "ReadFile",
          "description": "Reads and returns the content of a specified file. If the file is large, the content will be truncated. The tool's response will clearly indicate if truncation has occurred and will provide details on how to read more of the file using the 'offset' and 'limit' parameters. Handles text, images (PNG, JPG, GIF, WEBP, SVG, BMP), audio files (MP3, WAV, AIFF, AAC, OGG, FLAC), and PDF files. For text files, it can read specific line ranges.",
          "renderOutputAsMarkdown": true
        }
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    {
      "id": "41866c24-d86a-406f-8e09-c6fdcb2c4172",
      "timestamp": "2026-01-28T16:29:23.599Z",
      "type": "gemini",
      "content": "I'll read `service-spend-by-account.py` to see how it handles CSV files and if it uses `pandas`.",
      "thoughts": [
        {
          "subject": "Spotting the Error",
          "description": "I realized my mistake. The file name was not what I initially thought. It was `service-spend-by-account.py`, not what was on my radar earlier. This changes the direction I need to take.",
          "timestamp": "2026-01-28T16:29:23.303Z"
        }
      ],
      "tokens": {
        "input": 15781,
        "output": 48,
        "cached": 12808,
        "thoughts": 25,
        "tool": 0,
        "total": 15854
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "read_file-1769617763594-65ea5aaa98edf8",
          "name": "read_file",
          "args": {
            "file_path": "service-spend-by-account.py"
          },
          "result": [
            {
              "functionResponse": {
                "id": "read_file-1769617763594-65ea5aaa98edf8",
                "name": "read_file",
                "response": {
                  "output": "import boto3\nfrom datetime import datetime, timedelta\n\ndef get_service_costs_for_account(target_account_id):\n    ce = boto3.client('ce')\n\n    # 1. Date Setup\n    today = datetime.today()\n    first_curr = today.replace(day=1)\n    m1_start_dt = (first_curr - timedelta(days=1)).replace(day=1)\n    m2_start_dt = (m1_start_dt - timedelta(days=1)).replace(day=1)\n    \n    m1_s, m2_s = m1_start_dt.strftime('%Y-%m-%d'), m2_start_dt.strftime('%Y-%m-%d')\n    m1_n, m2_n = m1_start_dt.strftime('%b %Y'), m2_start_dt.strftime('%b %Y')\n\n    try:\n        response = ce.get_cost_and_usage(\n            TimePeriod={'Start': m2_s, 'End': first_curr.strftime('%Y-%m-%d')},\n            Granularity='MONTHLY',\n            Metrics=['UnblendedCost'],\n            Filter={'Dimensions': {'Key': 'LINKED_ACCOUNT', 'Values': [target_account_id]}},\n            GroupBy=[{'Type': 'DIMENSION', 'Key': 'SERVICE'}]\n        )\n\n        service_data = {}\n        for period in response['ResultsByTime']:\n            d = period['TimePeriod']['Start']\n            for g in period['Groups']:\n                svc = g['Keys'][0]\n                cost = float(g['Metrics']['UnblendedCost']['Amount'])\n                if svc not in service_data: service_data[svc] = {m2_s: 0.0, m1_s: 0.0}\n                service_data[svc][d] = cost\n\n        # 2. Print Table\n        header = f\"{'AWS Service':<35} | {m2_n:>11} | {m1_n:>11} | {'Change $':>10} | {'Change %'}\"\n        print(f\"\\nBreakdown for: {target_account_id}\\n\" + \"=\"*len(header))\n        print(header + \"\\n\" + \"-\"*len(header))\n\n        for svc, costs in sorted(service_data.items(), key=lambda x: x[1][m1_s], reverse=True):\n            c2, c1 = costs[m2_s], costs[m1_s]\n            if c1 == 0 and c2 == 0: continue\n            diff = c1 - c2\n            \n            # Percentage Logic\n            perc_str = f\"{(diff/c2)*100:>+7.1f}%\" if c2 > 0 else (\"   New  \" if c1 > 0 else \"   0.0% \")\n\n            print(f\"{svc[:34]:<35} | ${c2:>10,.2f} | ${c1:>10,.2f} | ${diff:>9.2f} | {perc_str}\")\n\n    except Exception as e:\n        print(f\"Error: {e}\")\n\nif __name__ == \"__main__\":\n    aid = input(\"Enter 12-digit Account ID: \").strip()\n    get_service_costs_for_account(aid)"
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:29:23.619Z",
          "resultDisplay": "",
          "displayName": "ReadFile",
          "description": "Reads and returns the content of a specified file. If the file is large, the content will be truncated. The tool's response will clearly indicate if truncation has occurred and will provide details on how to read more of the file using the 'offset' and 'limit' parameters. Handles text, images (PNG, JPG, GIF, WEBP, SVG, BMP), audio files (MP3, WAV, AIFF, AAC, OGG, FLAC), and PDF files. For text files, it can read specific line ranges.",
          "renderOutputAsMarkdown": true
        }
      ]
    },
    {
      "id": "fa042a92-905a-46b6-956b-a0ec337775cc",
      "timestamp": "2026-01-28T16:29:26.584Z",
      "type": "gemini",
      "content": "I'll read `aws-cost.rb` to see if it processes local CSV files.",
      "thoughts": [
        {
          "subject": "Analyzing Script's Functionality",
          "description": "I'm now focusing on how the script interacts with AWS using `boto3` to retrieve cost information. My current line of thought involves checking the ruby script `aws-cost.rb` to see if it provides any clues on how to handle the CSV files. I am hoping to connect the script to the user's needs.",
          "timestamp": "2026-01-28T16:29:26.345Z"
        }
      ],
      "tokens": {
        "input": 16609,
        "output": 35,
        "cached": 12915,
        "thoughts": 66,
        "tool": 0,
        "total": 16710
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "read_file-1769617766580-16d3a3ba494a3",
          "name": "read_file",
          "args": {
            "file_path": "aws-cost.rb"
          },
          "result": [
            {
              "functionResponse": {
                "id": "read_file-1769617766580-16d3a3ba494a3",
                "name": "read_file",
                "response": {
                  "output": "require 'aws-sdk-costexplorer'\nrequire 'aws-sdk-organizations'\nrequire 'date'\n\n# Initialize the Cost Explorer and Organizations clients\ncost_client = Aws::CostExplorer::Client.new(region: 'us-east-1')\norg_client = Aws::Organizations::Client.new(region: 'us-east-1')\n\n# Function to retrieve account names from the organizations API\ndef fetch_account_names(org_client)\n  account_map = {}\n\n  # Fetch all accounts under the organization\n  org_client.list_accounts.each do |response|\n    response.accounts.each do |account|\n      account_map[account.id] = account.name\n    end\n  end\n\n  account_map\nend\n\n# Function to retrieve AWS cost report grouped by account and service,\n# including savings details for EC2\ndef fetch_costs_with_savings(cost_client, org_client, start_date, end_date)\n  # Get the map of account IDs to account names\n  account_map = fetch_account_names(org_client)\n\n  response = cost_client.get_cost_and_usage({\n    time_period: {\n      start: start_date,\n      end: end_date\n    },\n    granularity: 'MONTHLY',\n    metrics: ['UnblendedCost', 'AmortizedCost', 'NetAmortizedCost', 'NetUnblendedCost'],\n    group_by: [\n      {\n        type: 'DIMENSION',\n        key: 'LINKED_ACCOUNT' # Group by account\n      },\n      {\n        type: 'DIMENSION',\n        key: 'SERVICE' # Group by service within each account\n      }\n    ]\n  })\n\n  # Check if the response has results\n  if response.results_by_time.empty?\n    puts \"No cost data available for the specified period.\"\n    return\n  end\n\n  # Iterate through each result and display relevant costs for EC2 services\n  response.results_by_time.each do |result|\n    date = result.time_period.start\n    puts \"Billing Period: #{date}\"\n\n    if result.groups.empty?\n      puts \"No cost data available for EC2 services.\"\n    end\n\n    result.groups.each do |group|\n      account_id = group.keys[0]\n      service = group.keys[1]\n\n      # Check if the service is EC2 (Amazon Elastic Compute Cloud - Compute)\n      if service.include?('Amazon Elastic Compute Cloud')\n        unblended_cost = group.metrics['UnblendedCost']['amount']\n        amortized_cost = group.metrics['AmortizedCost']['amount']\n        net_amortized_cost = group.metrics['NetAmortizedCost']['amount']\n        net_unblended_cost = group.metrics['NetUnblendedCost']['amount']\n        unit = group.metrics['UnblendedCost']['unit']\n\n        # Fetch account name, fall back to account ID if not found\n        account_name = account_map[account_id] || account_id\n\n        puts \"Account: #{account_name} | Service: #{service}\"\n        puts \"  - Total Cost (Unblended): #{unblended_cost} #{unit}\"\n        puts \"  - Net Cost (Amortized): #{net_amortized_cost} #{unit}\"\n        puts \"  - Net Cost (Unblended): #{net_unblended_cost} #{unit}\"\n        puts \"  - Final Cost (Amortized): #{amortized_cost} #{unit}\"\n      end\n    end\n  end\nend\n\n# Calculate the first and last day of the previous month\ntoday = Date.today\nstart_date = Date.new(today.year, today.month - 1, 1)\nend_date = Date.new(today.year, today.month, 1) - 1\n\nputs \"Fetching AWS EC2 costs with compute savings from #{start_date} to #{end_date}...\"\n\nfetch_costs_with_savings(cost_client, org_client, start_date.to_s, end_date.to_s)\n"
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:29:26.604Z",
          "resultDisplay": "",
          "displayName": "ReadFile",
          "description": "Reads and returns the content of a specified file. If the file is large, the content will be truncated. The tool's response will clearly indicate if truncation has occurred and will provide details on how to read more of the file using the 'offset' and 'limit' parameters. Handles text, images (PNG, JPG, GIF, WEBP, SVG, BMP), audio files (MP3, WAV, AIFF, AAC, OGG, FLAC), and PDF files. For text files, it can read specific line ranges.",
          "renderOutputAsMarkdown": true
        }
      ]
    },
    {
      "id": "39252346-483a-4a3a-894e-cbb4a5a5d482",
      "timestamp": "2026-01-28T16:29:36.649Z",
      "type": "gemini",
      "content": "I'll search for scripts that use `pandas` or `csv` to see how other CSV files are being processed.",
      "thoughts": [
        {
          "subject": "Examining CSV Scripts",
          "description": "I'm presently focused on the SDK. My next step involves a search for existing scripts capable of reading CSV files. This should provide some useful patterns.",
          "timestamp": "2026-01-28T16:29:36.316Z"
        }
      ],
      "tokens": {
        "input": 17591,
        "output": 38,
        "cached": 16266,
        "thoughts": 18,
        "tool": 0,
        "total": 17647
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "search_file_content-1769617776648-2bc44f402e9b3",
          "name": "search_file_content",
          "args": {
            "pattern": "pandas|csv"
          },
          "result": [
            {
              "functionResponse": {
                "id": "search_file_content-1769617776648-2bc44f402e9b3",
                "name": "search_file_content",
                "response": {
                  "output": "Found 34 matches for pattern \"pandas|csv\" in path \".\":\n---\nFile: aws-vpc.py\nL2: import csv\nL67: # Open CSV file for writing VPC information\nL68: with open('aws_vpcs_by_region.csv', mode='w', newline='') as csvfile:\nL69: # Define the fieldnames for the CSV header\nL71: writer = csv.DictWriter(csvfile, fieldnames=fieldnames)\nL97: # Write VPC information to CSV\nL122: print(\"\\nCSV file 'aws_vpcs_by_region.csv' generated successfully.\")\n---\nFile: aws-ec2-ami.py\nL3: import csv\nL79: # Open CSV file for writing instance information\nL80: with open('running_ec2_instances_info.csv', mode='w', newline='') as csvfile:\nL81: # Add 'Region' to the fieldnames for the CSV header\nL83: writer = csv.DictWriter(csvfile, fieldnames=fieldnames)\nL112: # Write instance information to CSV, including the region\nL144: print(\"\\nCSV file 'running_ec2_instances_info.csv' generated successfully.\")\n---\nFile: not-running-latest.sh\nL3: cat running_ec2_instances_info.csv | grep -v $1 | grep -v ubuntu | awk -F, '{print $1 \" \" $4}' | sort | uniq -c\n---\nFile: aws-metrics.py\nL2: import csv\nL98: # Prepare CSV file\nL99: with open('aws_account_metrics.csv', mode='w', newline='') as file:\nL100: writer = csv.writer(file)\nL149: # Write to CSV\nL167: print(\"\\nCSV file 'aws_account_metrics.csv' generated successfully.\")\n---\nFile: generate-billing-sheets.py\nL2: import pandas as pd\n---\nFile: aws-asg-lt-ami.py\nL3: import csv\nL159: # Open CSV file for writing ASG information\nL160: csv_filepath = 'autoscaling_group_ami_template_info.csv'\nL161: with open(csv_filepath, mode='w', newline='') as csvfile:\nL173: writer = csv.DictWriter(csvfile, fieldnames=fieldnames)\nL201: # Write results to CSV and print to console\nL234: print(f\"\\nCSV file '{csv_filepath}' generated successfully.\")\n---\nFile: aws-ips.py\nL2: import csv\nL71: # Open CSV file for writing\nL72: with open('aws_external_ips_by_region.csv', mode='w', newline='') as csvfile:\nL84: writer = csv.DictWriter(csvfile, fieldnames=fieldnames)\nL170: print(\"\\nCSV file 'aws_external_ips_by_region.csv' generated successfully.\")\n---"
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:29:36.699Z",
          "resultDisplay": "Found 34 matches",
          "displayName": "SearchText",
          "description": "FAST, optimized search powered by `ripgrep`. PREFERRED over standard `run_shell_command(\"grep ...\")` due to better performance and automatic output limiting (max 20k matches).",
          "renderOutputAsMarkdown": true
        }
      ]
    },
    {
      "id": "4cd4cf4c-46c1-41ff-8719-b9056b60afc9",
      "timestamp": "2026-01-28T16:29:52.416Z",
      "type": "gemini",
      "content": "I'll read `generate-billing-sheets.py` to see how it uses `pandas` to process billing data.",
      "thoughts": [
        {
          "subject": "Analyzing the Codebase",
          "description": "I'm currently delving into the `generate-billing-sheets.py` script. My focus is on understanding how `pandas` is utilized within its structure. I'll inspect its internal logic to fully comprehend its operation.",
          "timestamp": "2026-01-28T16:29:52.100Z"
        }
      ],
      "tokens": {
        "input": 18342,
        "output": 43,
        "cached": 16370,
        "thoughts": 20,
        "tool": 0,
        "total": 18405
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "read_file-1769617792415-7aa5ee3c66b7f",
          "name": "read_file",
          "args": {
            "file_path": "generate-billing-sheets.py"
          },
          "result": [
            {
              "functionResponse": {
                "id": "read_file-1769617792415-7aa5ee3c66b7f",
                "name": "read_file",
                "response": {
                  "output": "import boto3\nimport pandas as pd\nimport gspread\nimport time\nimport os\nfrom datetime import datetime, timedelta\nfrom google_auth_oauthlib.flow import InstalledAppFlow\nfrom google.auth.transport.requests import Request\nfrom google.oauth2.credentials import Credentials\n\n# --- CONFIGURATION ---\nCLIENT_SECRET_FILE = 'client_secret.json'\nSCOPES = [\n    'https://www.googleapis.com/auth/spreadsheets',\n    'https://www.googleapis.com/auth/drive'\n]\n\ndef get_google_auth():\n    creds = None\n    if os.path.exists('authorized_user.json'):\n        creds = Credentials.from_authorized_user_file('authorized_user.json', SCOPES)\n    \n    if not creds or not creds.valid:\n        if creds and creds.expired and creds.refresh_token:\n            creds.refresh(Request())\n        else:\n            flow = InstalledAppFlow.from_client_secrets_file(CLIENT_SECRET_FILE, SCOPES)\n            creds = flow.run_local_server(port=0)\n        with open('authorized_user.json', 'w') as token:\n            token.write(creds.to_json())\n    \n    return gspread.authorize(creds)\n\ndef format_worksheet(ws):\n    \"\"\"Bolds headers and freezes top row with error handling for quota.\"\"\"\n    try:\n        ws.format(\"A1:Z1\", {\"textFormat\": {\"bold\": True}})\n        ws.freeze(rows=1)\n        # Apply currency format to cost columns\n        ws.format(\"B2:D100\", {\"numberFormat\": {\"type\": \"CURRENCY\", \"pattern\": \"$#,##0.00\"}})\n    except Exception as e:\n        print(f\"  ! Formatting skip (quota): {e}\")\n\ndef fetch_aws_billing():\n    ce = boto3.client('ce')\n    org = boto3.client('organizations')\n    \n    today = datetime.today()\n    first_curr = today.replace(day=1)\n    m1_dt = (first_curr - timedelta(days=1)).replace(day=1)\n    m2_dt = (m1_dt - timedelta(days=1)).replace(day=1)\n    \n    meta = {\n        \"file_name\": f\"AWS_Billing_{m1_dt.strftime('%b_%Y')}\",\n        \"m1_start\": m1_dt.strftime('%Y-%m-%d'),\n        \"m2_start\": m2_dt.strftime('%Y-%m-%d'),\n        \"end_date\": first_curr.strftime('%Y-%m-%d'),\n        \"m1_name\": m1_dt.strftime('%b %Y'),\n        \"m2_name\": m2_dt.strftime('%b %Y')\n    }\n    \n    print(\"Step 1: Mapping account names...\")\n    account_map = {a['Id']: a['Name'] for p in org.get_paginator('list_accounts').paginate() for a in p['Accounts']}\n    \n    print(\"Step 2: Fetching summary data...\")\n    resp_overall = ce.get_cost_and_usage(\n        TimePeriod={'Start': meta['m2_start'], 'End': meta['end_date']},\n        Granularity='MONTHLY',\n        Metrics=['UnblendedCost'],\n        GroupBy=[{'Type': 'DIMENSION', 'Key': 'LINKED_ACCOUNT'}]\n    )\n\n    pivot = {}\n    for period in resp_overall['ResultsByTime']:\n        d = period['TimePeriod']['Start']\n        for g in period['Groups']:\n            aid = g['Keys'][0]\n            cost = float(g['Metrics']['UnblendedCost']['Amount'])\n            if aid not in pivot: pivot[aid] = {meta['m2_start']: 0.0, meta['m1_start']: 0.0}\n            pivot[aid][d] = cost\n\n    summary_rows = []\n    for aid, costs in pivot.items():\n        c2, c1 = costs[meta['m2_start']], costs[meta['m1_start']]\n        diff = c1 - c2\n        perc = (diff/c2)*100 if c2 > 0 else (100.0 if c1 > 0 else 0.0)\n        summary_rows.append([account_map.get(aid, aid), aid, c2, c1, diff, f\"{perc:.1f}%\"])\n    \n    df_summary = pd.DataFrame(summary_rows, columns=['Account Name', 'ID', meta['m2_name'], meta['m1_name'], 'Change $', 'Change %'])\n\n    print(\"Step 3: Fetching service details (AWS API)...\")\n    detail_dfs = {}\n    for aid in pivot.keys():\n        name = account_map.get(aid, aid)\n        time.sleep(0.3) # AWS rate limit safety\n        \n        resp_svc = ce.get_cost_and_usage(\n            TimePeriod={'Start': meta['m2_start'], 'End': meta['end_date']},\n            Granularity='MONTHLY', Metrics=['UnblendedCost'],\n            Filter={'Dimensions': {'Key': 'LINKED_ACCOUNT', 'Values': [aid]}},\n            GroupBy=[{'Type': 'DIMENSION', 'Key': 'SERVICE'}]\n        )\n        \n        svc_pivot = {}\n        for period in resp_svc['ResultsByTime']:\n            d = period['TimePeriod']['Start']\n            for g in period['Groups']:\n                svc = g['Keys'][0]\n                cost = float(g['Metrics']['UnblendedCost']['Amount'])\n                if svc not in svc_pivot: svc_pivot[svc] = {meta['m2_start']: 0.0, meta['m1_start']: 0.0}\n                svc_pivot[svc][d] = cost\n        \n        svc_rows = []\n        for s, costs in svc_pivot.items():\n            c2, c1 = costs[meta['m2_start']], costs[meta['m1_start']]\n            if c1 == 0 and c2 == 0: continue\n            diff = c1 - c2\n            perc = (diff/c2)*100 if c2 > 0 else (100.0 if c1 > 0 else 0.0)\n            svc_rows.append([s, c2, c1, diff, f\"{perc:.1f}%\"])\n            \n        tab_name = name[:30].replace(\":\", \"-\")\n        detail_dfs[tab_name] = pd.DataFrame(svc_rows, columns=['Service', meta['m2_name'], meta['m1_name'], 'Change $', 'Change %'])\n        \n    return df_summary, detail_dfs, meta['file_name']\n\ndef export_to_sheets(summary, details, file_name):\n    gc = get_google_auth()\n    \n    print(f\"Step 4: Creating Google Sheet: {file_name}\")\n    sh = gc.create(file_name)\n    \n    # 1. Summary Tab\n    ws_sum = sh.get_worksheet(0)\n    ws_sum.update_title(\"Org Summary\")\n    # Batch update values\n    ws_sum.update([summary.columns.values.tolist()] + summary.values.tolist())\n    format_worksheet(ws_sum)\n    \n    # 2. Detail Tabs with intentional delay to avoid Google Quota Limits\n    print(\"Writing detail tabs (this takes a moment due to API limits)...\")\n    for tab_name, df in details.items():\n        print(f\"  > Writing tab: {tab_name}\")\n        ws = sh.add_worksheet(title=tab_name, rows=\"100\", cols=\"10\")\n        ws.update([df.columns.values.tolist()] + df.values.tolist())\n        format_worksheet(ws)\n        # SLEEP to prevent Google Sheets 429 Error\n        time.sleep(60) \n    \n    print(f\"\\nSuccess! Report URL: {sh.url}\")\n\nif __name__ == \"__main__\":\n    try:\n        summary_df, detail_dfs, name = fetch_aws_billing()\n        export_to_sheets(summary_df, detail_dfs, name)\n    except Exception as e:\n        print(f\"An error occurred: {e}\")\n"
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:29:52.425Z",
          "resultDisplay": "",
          "displayName": "ReadFile",
          "description": "Reads and returns the content of a specified file. If the file is large, the content will be truncated. The tool's response will clearly indicate if truncation has occurred and will provide details on how to read more of the file using the 'offset' and 'limit' parameters. Handles text, images (PNG, JPG, GIF, WEBP, SVG, BMP), audio files (MP3, WAV, AIFF, AAC, OGG, FLAC), and PDF files. For text files, it can read specific line ranges.",
          "renderOutputAsMarkdown": true
        }
      ]
    },
    {
      "id": "fd95bd44-339b-4f31-9300-dfdc8f19485a",
      "timestamp": "2026-01-28T16:30:04.677Z",
      "type": "gemini",
      "content": "I'll read more lines from `ecsv_12_2025.csv` to better understand the different `RecordType` values and how `LinkedAccountId` is used.",
      "thoughts": [
        {
          "subject": "Formulating the Script",
          "description": "I'm starting the script. The plan is to load the CSV, group the data by account ID and name, then calculate the sums for total cost, cost before tax, and tax amount. I'll make sure it's efficient for large datasets.",
          "timestamp": "2026-01-28T16:29:58.129Z"
        },
        {
          "subject": "Designing the Code",
          "description": "I'm ready to code now. The plan is in place; I'll start with a Python script, `summarize-ecsv.py`. I'll load the CSV, aggregate by account ID and name, and calculate the sums of costs. Then, I'll review the `read_file` output to confirm the column names. I see that the `LinkedAccountId` field can be empty, which I will need to consider.",
          "timestamp": "2026-01-28T16:30:04.350Z"
        },
        {
          "subject": "Refining the Approach",
          "description": "I'm focused on the details. I've got the script skeleton sketched out, but now I'm thinking about edge cases. Reviewing the `read_file` output made me realize that `LinkedAccountId` can be empty and `RecordType` seems important. I'm leaning toward filtering by the existence of `LinkedAccountId` or handling the empty ones separately, as they could signify payer-level costs. Also, I need to check how the quotes are handled.",
          "timestamp": "2026-01-28T16:30:04.377Z"
        }
      ],
      "tokens": {
        "input": 20363,
        "output": 66,
        "cached": 16669,
        "thoughts": 364,
        "tool": 0,
        "total": 20793
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "read_file-1769617804672-64bc7ef7b8e02",
          "name": "read_file",
          "args": {
            "limit": 50,
            "offset": 5,
            "file_path": "ecsv_12_2025.csv"
          },
          "result": [
            {
              "functionResponse": {
                "id": "read_file-1769617804672-64bc7ef7b8e02",
                "name": "read_file",
                "response": {
                  "output": "\nIMPORTANT: The file content has been truncated.\nStatus: Showing lines 6-55 of 6106 total lines.\nAction: To read more of the file, you can use the 'offset' and 'limit' parameters in a subsequent 'read_file' call. For example, to read the next section of the file, use offset: 55.\n\n--- FILE CONTENT (truncated) ---\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-545\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudFront\",\"Amazon CloudFront\",\"Amazon Web Services EMEA SARL\",\"EU-Requests-Tier2-HTTPS\",\"\",\"165477461216\",\"$0.000 per request - HTTP or HTTPS under the global monthly free tier\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"9832118.00000000\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-544\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlobalAccelerator\",\"AWS Global Accelerator\",\"Amazon Web Services EMEA SARL\",\"EU-KR-OUT-Bytes-AWS\",\"Dominant\",\"62383958597\",\"$0.035 per GB - DT-Premium-from-Europe-regions-out-to-South-Korea-AWS-clients\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00305089\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-543\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EU-USE1-AWS-In-Bytes\",\"\",\"288403834050\",\"$0.00 per GB - EU (Ireland) data transfer from US East (Northern Virginia)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"19.60628141\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-542\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudFront\",\"Amazon CloudFront\",\"Amazon Web Services EMEA SARL\",\"USW1-Lambda-Edge-Request\",\"\",\"165477461057\",\"$6.0E-7  per Request for Lambda-Edge-Request in US West (N. California)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"6640.00000000\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-541\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSLambda\",\"AWS Lambda\",\"Amazon Web Services EMEA SARL\",\"EUW2-Request\",\"\",\"301408932119\",\"AWS Lambda - Total Requests - EU (London)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2862598.00000000\",\"\",\"USD\",\"0.58\",\"0.0\",\"0.117098\",\"VAT\",\"0.697098\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-540\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudWatch\",\"AmazonCloudWatch\",\"Amazon Web Services EMEA SARL\",\"USW1-TimedStorage-ByteHrs\",\"\",\"313536233455\",\"First 5GB-mo per month of logs storage is free.\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.01767175\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-539\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudFront\",\"Amazon CloudFront\",\"Amazon Web Services EMEA SARL\",\"EU-Requests-HTTPS-Proxy\",\"\",\"165477461205\",\"$0.000 per request - HTTP or HTTPS under the global monthly free tier\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"144926.00000000\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-538\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonRDS\",\"Amazon Relational Database Service\",\"Amazon Web Services EMEA SARL\",\"EUW2-RDS:GP3-Storage\",\"CreateDBInstance:0014\",\"330631446433\",\"$0.133 per GB-month of provisioned GP3 storage running PostgreSQL\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"119.99999808\",\"\",\"USD\",\"15.96\",\"0.0\",\"3.192257\",\"VAT\",\"19.152257\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-537\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudWatch\",\"AmazonCloudWatch\",\"Amazon Web Services EMEA SARL\",\"EU-TimedStorage-ByteHrs\",\"\",\"313536232128\",\"$0.03 per GB-mo of log storage - EU (Ireland)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"1.54580631\",\"\",\"USD\",\"0.05\",\"0.0\",\"0.010051\",\"VAT\",\"0.060051\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-536\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonES\",\"Amazon OpenSearch Service\",\"Amazon Web Services EMEA SARL\",\"EUW2-ESInstance:t3.medium\",\"ESDomain\",\"325210028729\",\"$ 0.077 per t3.medium.search instance hour (or partial hour) - EUW2\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"3933.00000000\",\"\",\"USD\",\"302.84\",\"0.0\",\"60.567912\",\"VAT\",\"363.407912\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-535\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudFront\",\"Amazon CloudFront\",\"Amazon Web Services EMEA SARL\",\"CA-Requests-Tier1\",\"\",\"165477461096\",\"$0.0075 per 10,000 HTTP Requests (Canada)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"131060.00000000\",\"\",\"USD\",\"0.09\",\"0.0\",\"0.018015\",\"VAT\",\"0.108015\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-534\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudWatch\",\"AmazonCloudWatch\",\"Amazon Web Services EMEA SARL\",\"DashboardsUsageHour-Basic\",\"DashboardHour\",\"313536223284\",\"$3.00 per Dashboard per Month\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"6.00001176\",\"\",\"USD\",\"18.00\",\"0.0\",\"3.599943\",\"VAT\",\"21.599943\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-533\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlobalAccelerator\",\"AWS Global Accelerator\",\"Amazon Web Services EMEA SARL\",\"EU-SA-IN-Bytes-Internet\",\"Non-dominant\",\"62279337559\",\"$0 per GB - DT-Premium-from-South-America-Internet-clients-in-to-Europe-regions\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.30946743\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-532\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"DataTransfer-Out-Bytes\",\"\",\"288403837496\",\"$0.090 per GB - first 10 TB / month data transfer out beyond the global free tier\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00025994\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-531\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlobalAccelerator\",\"AWS Global Accelerator\",\"Amazon Web Services EMEA SARL\",\"EU-ZA-IN-Bytes-Internet\",\"Non-dominant\",\"62383958874\",\"$0 per GB - DT-Premium-from-South-Africa-Internet-clients-in-to-Europe-regions\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.03215187\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-530\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlobalAccelerator\",\"AWS Global Accelerator\",\"Amazon Web Services EMEA SARL\",\"EU-AP-IN-Bytes-Internet\",\"Dominant\",\"62383958630\",\"$0.033 per GB - DT-Premium-from-Asia-Pacific-Internet-clients-in-to-Europe-regions\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.08910397\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-529\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonEC2\",\"Amazon Elastic Compute Cloud\",\"Amazon Web Services EMEA SARL\",\"EUW2-EBS:VolumeUsage.gp2\",\"\",\"329047698422\",\"$0.116 per GB-month of General Purpose SSD (gp2) provisioned storage - EU (London)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"36.00000240\",\"\",\"USD\",\"4.18\",\"0.0\",\"0.836194\",\"VAT\",\"5.016194\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-528\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudFront\",\"Amazon CloudFront\",\"Amazon Web Services EMEA SARL\",\"US-Requests-HTTP-Proxy\",\"\",\"165477461085\",\"$0.0075 per 10,000 Proxy HTTP Requests (US)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"29352.00000000\",\"\",\"USD\",\"0.02\",\"0.0\",\"0.003941\",\"VAT\",\"0.023941\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-527\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"USE1-APN2-AWS-Out-Bytes\",\"\",\"288403813487\",\"$0.02 per GB - US East (Northern Virginia) data transfer to Asia Pacific (Seoul)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00067777\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-526\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlobalAccelerator\",\"AWS Global Accelerator\",\"Amazon Web Services EMEA SARL\",\"EU-ME-IN-Bytes-AWS\",\"Non-dominant\",\"62383958785\",\"$0 per GB - DT-Premium-from-Middle-East-AWS-clients-in-to-Europe-regions\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00001750\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-524\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSQueueService\",\"Amazon Simple Queue Service\",\"Amazon Web Services EMEA SARL\",\"EUW2-Requests-Tier1\",\"\",\"231387327310\",\"$0.40 per million Amazon SQS standard requests in Tier1 in EU (London)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"588712.00000000\",\"\",\"USD\",\"0.22\",\"0.0\",\"0.040000\",\"VAT\",\"0.260000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-523\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudWatch\",\"AmazonCloudWatch\",\"Amazon Web Services EMEA SARL\",\"CW:Requests\",\"\",\"313536233385\",\"$0.00 per request - first 1,000,000 requests\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"6.00000000\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-521\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EU-APN2-AWS-In-Bytes\",\"\",\"288403814419\",\"$0.00 per GB - EU (Ireland) data transfer from Asia Pacific (Seoul)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00102568\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-520\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlue\",\"AWS Glue\",\"Amazon Web Services EMEA SARL\",\"EUW2-Catalog-Storage\",\"Storage\",\"316731377014\",\"$0 for AWS Glue Data Catalog storage under the free tier\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"28.99998912\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-519\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudFront\",\"Amazon CloudFront\",\"Amazon Web Services EMEA SARL\",\"US-Requests-Tier2-HTTPS\",\"\",\"165477460970\",\"$0.0100 per 10,000 HTTPS Requests\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"99623996.00000000\",\"\",\"USD\",\"99.67\",\"0.0\",\"19.933996\",\"VAT\",\"119.603996\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-518\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-USE2-AWS-In-Bytes\",\"\",\"288403840504\",\"$0.00 per GB - EU (London) data transfer from US East (Ohio)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.07711277\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-517\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EU-PDX1-AWS-In-Bytes\",\"\",\"288403829447\",\"$0.00 per GB - EU (Ireland) data transfer from US West (Portland)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000853\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-516\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-EUC2-AWS-In-Bytes\",\"\",\"288403821459\",\"$0.00 per GB - EU (London) data transfer from Europe (Zurich)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00032047\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-515\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"ACM\",\"AWS Certificate Manager\",\"Amazon Web Services EMEA SARL\",\"USE1-IssuePublicCertificateDomain\",\"\",\"274017146505\",\"$0.00 per Certificate Domain Name (fully qualified domain name) in US East (N. Virginia)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"19.00000000\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-514\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-WAW1-AWS-In-Bytes\",\"\",\"288403816179\",\"$0.00 per GB - EU (London) data transfer from Poland (Warsaw)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000136\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-513\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudFront\",\"Amazon CloudFront\",\"Amazon Web Services EMEA SARL\",\"US-Requests-Tier1\",\"\",\"165477461076\",\"$0.0075 per 10,000 HTTP Requests\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"6816866.00000000\",\"\",\"USD\",\"5.12\",\"0.0\",\"1.024061\",\"VAT\",\"6.144061\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-512\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-QRO1-AWS-In-Bytes\",\"\",\"288403820623\",\"$0.000 per GB - EU (London) data transfer from Mexico (Queretaro)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000272\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-511\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-CloudFront-Out-Bytes\",\"\",\"288403839316\",\"$0.00 per GB data transfer out of EU (London) to CloudFront\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"5111.23941260\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-510\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-PHL1-AWS-Out-Bytes\",\"\",\"288403817431\",\"$0.02 per GB - EU (London) data transfer to US East (Philadelphia)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"6.4E-7\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-509\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-WAW1-AWS-Out-Bytes\",\"\",\"288403825711\",\"$0.02 per GB - EU (London) data transfer to Poland (Warsaw)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"6.4E-7\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-508\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSCloudTrail\",\"AWS CloudTrail\",\"Amazon Web Services EMEA SARL\",\"EU-FreeEventsRecorded\",\"\",\"296275046282\",\"0.0 per free event recorded in EU (Dublin) region\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"12743.00000000\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-507\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlobalAccelerator\",\"AWS Global Accelerator\",\"Amazon Web Services EMEA SARL\",\"EU-IN-IN-Bytes-Internet\",\"Dominant\",\"62383958433\",\"$0.033 per GB - DT-Premium-from-India-Internet-clients-in-to-Europe-regions\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00631573\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-506\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-PHL1-AWS-In-Bytes\",\"\",\"288403831602\",\"$0.00 per GB - EU (London) data transfer from US East (Philadelphia)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000136\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-505\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"USW2-USE1-AWS-Out-Bytes\",\"\",\"288403824134\",\"$0.02 per GB - US West (Oregon) data transfer to US East (Northern Virginia)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.02930827\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-504\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"awswaf\",\"AWS WAF\",\"Amazon Web Services EMEA SARL\",\"EUW2-ChallengeServed\",\"\",\"330916516303\",\"$0.4 per Million Request  for ChallengeServed in EU (London)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"12858.00000000\",\"\",\"USD\",\"0.01\",\"0.0\",\"0.001963\",\"VAT\",\"0.011963\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-503\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"USW2-USE1-AWS-In-Bytes\",\"\",\"288403824783\",\"$0.00 per GB - US West (Oregon) data transfer from US East (Northern Virginia)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.01840605\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-502\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EU-APS4-AWS-In-Bytes\",\"\",\"288403814922\",\"$0.00 per GB - EU (Ireland) data transfer from Asia Pacific (Jakarta)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00001660\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-501\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-APE2-AWS-In-Bytes\",\"\",\"288403825334\",\"$0.00 per GB - EU (London) data transfer from Asia Pacific (Taipei)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000101\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-500\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSCloudTrail\",\"AWS CloudTrail\",\"Amazon Web Services EMEA SARL\",\"EU-DataEventsRecorded\",\"\",\"296275045900\",\"0.000001 per data event recorded in EU (Dublin) region\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"242.00000000\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-499\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"awskms\",\"AWS Key Management Service\",\"Amazon Web Services EMEA SARL\",\"eu-west-1-KMS-Requests\",\"\",\"198280981771\",\"$0.03 per 10000 KMS requests in EU (Ireland)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"1030.00000000\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-498\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-EUC1-AWS-In-Bytes\",\"\",\"288403854021\",\"$0.00 per GB - EU (London) data transfer from EU (Germany)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"7.12549189\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-497\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUC1-USE1-AWS-In-Bytes\",\"\",\"288403820084\",\"$0.00 per GB - EU (Germany) data transfer from US East (Northern Virginia)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.01984604\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-496\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSGlobalAccelerator\",\"AWS Global Accelerator\",\"Amazon Web Services EMEA SARL\",\"EU-AU-OUT-Bytes-AWS\",\"Non-dominant\",\"62383958463\",\"$0 per GB - DT-Premium-from-Europe-regions-out-to-Australia-AWS-clients\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000241\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-495\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-MNL1-AWS-In-Bytes\",\"\",\"288403850022\",\"$0.00 per GB - EU (London) data transfer from Philippines (Manila)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000204\",\"\",\"USD\",\"0.00\",\"0.0\",\"0.000000\",\"None\",\"0.000000\"\n\"EUINGB26-6655\",\"396871851846\",\"\",\"PayerLineItem\",\"-494\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"\",\"\",\"\",\"AmazonCloudFront\",\"Amazon CloudFront\",\"Amazon Web Services EMEA SARL\",\"CA-Requests-Tier2-HTTPS\",\"\",\"165477461083\",\"$0.0100 per 10,000 HTTPS Requests (Canada)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2331307.00000000\",\"\",\"USD\",\"2.36\",\"0.0\",\"0.471777\",\"VAT\",\"2.831777\""
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:30:04.694Z",
          "resultDisplay": "Read lines 6-55 of 6106 from ecsv_12_2025.csv",
          "displayName": "ReadFile",
          "description": "Reads and returns the content of a specified file. If the file is large, the content will be truncated. The tool's response will clearly indicate if truncation has occurred and will provide details on how to read more of the file using the 'offset' and 'limit' parameters. Handles text, images (PNG, JPG, GIF, WEBP, SVG, BMP), audio files (MP3, WAV, AIFF, AAC, OGG, FLAC), and PDF files. For text files, it can read specific line ranges.",
          "renderOutputAsMarkdown": true
        }
      ]
    },
    {
      "id": "c3c3faea-7bb0-49be-a4db-329e457cacd8",
      "timestamp": "2026-01-28T16:30:33.391Z",
      "type": "gemini",
      "content": "I'll search for lines in `ecsv_12_2025.csv` that have a non-empty `LinkedAccountId` to confirm how linked account data is represented.",
      "thoughts": [
        {
          "subject": "Considering Data Anomalies",
          "description": "I'm noticing that the `LinkedAccountId` field is often blank, which suggests a relationship to the payer account or the presence of summary data. The `RecordType` field often uses values like `LineItem` or `PayerLineItem`. I am currently reviewing the file, and it primarily features `PayerLineItem` records.",
          "timestamp": "2026-01-28T16:30:24.838Z"
        },
        {
          "subject": "Refining the Approach",
          "description": "I'm now prioritizing the records with populated `LinkedAccountId` values. It appears that focusing on these will be key to creating the payer summaries. This approach should help in linking individual transactions. I am also investigating the impact of the `RecordType` field when summarizing the data.",
          "timestamp": "2026-01-28T16:30:33.385Z"
        }
      ],
      "tokens": {
        "input": 32860,
        "output": 87,
        "cached": 21299,
        "thoughts": 112,
        "tool": 0,
        "total": 33059
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "run_shell_command-1769617833385-bed0804ec3ce3",
          "name": "run_shell_command",
          "args": {
            "command": "grep -E '^\"[^\"]*\",\"[^\"]*\",\"[0-9]+\"' ecsv_12_2025.csv | head -n 5"
          },
          "result": [
            {
              "functionResponse": {
                "id": "run_shell_command-1769617833385-bed0804ec3ce3",
                "name": "run_shell_command",
                "response": {
                  "output": "Command: grep -E '^\"[^\"]*\",\"[^\"]*\",\"[0-9]+\"' ecsv_12_2025.csv | head -n 5\nDirectory: (root)\nOutput: \"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814058\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EU-DEN1-AWS-In-Bytes\",\"\",\"288403830781\",\"$0.00 per GB - EU (Ireland) data transfer from US West (Denver)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000238\",\"\",\"USD\",\"0E-10\",\"0.0\",\"0.000000\",\"None\",\"0E-10\"\n\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814059\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-EUC1-AWS-Out-Bytes\",\"\",\"288403833109\",\"$0.02 per GB - EU (London) data transfer to EU (Germany)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00033480\",\"\",\"USD\",\"0.0000070000\",\"0.0\",\"0.000001\",\"VAT\",\"0.0000080000\"\n\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814060\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EU-QRO1-AWS-Out-Bytes\",\"\",\"288403851043\",\"$0.02 per GB - EU (Ireland) data transfer to Mexico (Queretaro)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"3.2E-7\",\"\",\"USD\",\"0E-10\",\"0.0\",\"0.000000\",\"None\",\"0E-10\"\n\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814061\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-DataTransfer-Regional-Bytes\",\"\",\"288403839067\",\"$0.010 per GB - regional data transfer - in/out/between EC2 AZs or using elastic IPs or ELB\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000665\",\"\",\"USD\",\"0E-10\",\"0.0\",\"0.000000\",\"None\",\"0E-10\"\n\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814062\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-APN1-AWS-Out-Bytes\",\"\",\"288403833509\",\"$0.02 per GB - EU (London) data transfer to Asia Pacific (Tokyo)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00033480\",\"\",\"USD\",\"0.0000070000\",\"0.0\",\"0.000001\",\"VAT\",\"0.0000080000\"\nError: (none)\nExit Code: 0\nSignal: 0\nBackground PIDs: (none)\nProcess Group PGID: 87151"
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          "status": "success",
          "timestamp": "2026-01-28T16:30:40.809Z",
          "resultDisplay": "\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814058\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EU-DEN1-AWS-In-Bytes\",\"\",\"288403830781\",\"$0.00 per GB - EU (Ireland) data transfer from US West (Denver)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000238\",\"\",\"USD\",\"0E-10\",\"0.0\",\"0.000000\",\"None\",\"0E-10\"\n\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814059\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-EUC1-AWS-Out-Bytes\",\"\",\"288403833109\",\"$0.02 per GB - EU (London) data transfer to EU (Germany)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00033480\",\"\",\"USD\",\"0.0000070000\",\"0.0\",\"0.000001\",\"VAT\",\"0.0000080000\"\n\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814060\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EU-QRO1-AWS-Out-Bytes\",\"\",\"288403851043\",\"$0.02 per GB - EU (Ireland) data transfer to Mexico (Queretaro)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"3.2E-7\",\"\",\"USD\",\"0E-10\",\"0.0\",\"0.000000\",\"None\",\"0E-10\"\n\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814061\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-DataTransfer-Regional-Bytes\",\"\",\"288403839067\",\"$0.010 per GB - regional data transfer - in/out/between EC2 AZs or using elastic IPs or ELB\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00000665\",\"\",\"USD\",\"0E-10\",\"0.0\",\"0.000000\",\"None\",\"0E-10\"\n\"EUINGB26-6655\",\"396871851846\",\"012755198934\",\"LinkedLineItem\",\"6800006281782814062\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"2026/01/01 15:31:32\",\"dxw\",\"CID - Prod\",\"\",\"\",\"AWSDataTransfer\",\"AWS Data Transfer\",\"Amazon Web Services EMEA SARL\",\"EUW2-APN1-AWS-Out-Bytes\",\"\",\"288403833509\",\"$0.02 per GB - EU (London) data transfer to Asia Pacific (Tokyo)\",\"2025/12/01 00:00:00\",\"2025/12/31 23:59:59\",\"0.00033480\",\"\",\"USD\",\"0.0000070000\",\"0.0\",\"0.000001\",\"VAT\",\"0.0000080000\"",
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    {
      "id": "41464574-1e1e-409c-b70d-58642f6cba19",
      "timestamp": "2026-01-28T16:31:00.435Z",
      "type": "gemini",
      "content": "I'll write the `summarize-ecsv.py` script, which uses `pandas` to group and sum the billing data from the CSV file by `LinkedAccountId`.",
      "thoughts": [
        {
          "subject": "Defining the Script Logic",
          "description": "I'm currently working on a Python script to process billing data from a CSV file. My focus right now is on pulling out the `LinkedAccountId` from `LinkedLineItem` records. The script is being structured to use pandas for efficient data handling. I've begun to define the core function and initial file loading steps, with print statements for progress tracking.",
          "timestamp": "2026-01-28T16:30:51.547Z"
        },
        {
          "subject": "Constructing the Core Function",
          "description": "I've outlined the Python script's central billing summarization function. I'm focusing on handling potential errors during file loading and ensuring accurate data conversion for calculations. Using `pandas`, I filter `LinkedLineItem` records and group by `LinkedAccountId`, addressing potential `NaN` values.",
          "timestamp": "2026-01-28T16:30:53.741Z"
        },
        {
          "subject": "Finalizing the Implementation",
          "description": "I'm now satisfied with the `summarize_billing` function.  I've incorporated error handling for file loading. I'm also ensuring the summary includes both tax and before-tax costs, and I've added a final total. I'll save this as `summarize-ecsv.py`.",
          "timestamp": "2026-01-28T16:30:54.845Z"
        }
      ],
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        "cached": 32031,
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          "id": "write_file-1769617860432-c032f2de464918",
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          "args": {
            "file_path": "summarize-ecsv.py",
            "content": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to only LinkedLineItem to avoid summary rows if they exist\n    # Based on the sample, 'LinkedLineItem' seems to be the detailed records for linked accounts.\n    # 'PayerLineItem' records with empty LinkedAccountId seem to be the same data but from the payer's perspective.\n    # If we sum both, we might double count.\n    \n    # Let's check unique RecordTypes first to be sure\n    record_types = df['RecordType'].unique()\n    \n    if 'LinkedLineItem' in record_types:\n        df_linked = df[df['RecordType'] == 'LinkedLineItem'].copy()\n    else:\n        # Fallback to all records if LinkedLineItem doesn't exist\n        df_linked = df.copy()\n\n    # Fill NaN for LinkedAccountId/Name\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_linked.columns:\n            df_linked[col] = pd.to_numeric(df_linked[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_linked.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_linked.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_linked.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_linked.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n"
          },
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              "functionResponse": {
                "id": "write_file-1769617860432-c032f2de464918",
                "name": "write_file",
                "response": {
                  "output": "Successfully created and wrote to new file: /Users/bob/git/dxw/aws-stuff/summarize-ecsv.py."
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:31:15.458Z",
          "resultDisplay": {
            "fileDiff": "Index: summarize-ecsv.py\n===================================================================\n--- summarize-ecsv.py\tOriginal\n+++ summarize-ecsv.py\tWritten\n@@ -0,0 +1,92 @@\n+import pandas as pd\n+import sys\n+\n+def summarize_billing(file_path):\n+    print(f\"Reading {file_path}...\")\n+    try:\n+        # Load the CSV\n+        df = pd.read_csv(file_path, low_memory=False)\n+    except FileNotFoundError:\n+        print(f\"Error: File {file_path} not found.\")\n+        return\n+    except Exception as e:\n+        print(f\"Error reading CSV: {e}\")\n+        return\n+\n+    # Filter to only LinkedLineItem to avoid summary rows if they exist\n+    # Based on the sample, 'LinkedLineItem' seems to be the detailed records for linked accounts.\n+    # 'PayerLineItem' records with empty LinkedAccountId seem to be the same data but from the payer's perspective.\n+    # If we sum both, we might double count.\n+    \n+    # Let's check unique RecordTypes first to be sure\n+    record_types = df['RecordType'].unique()\n+    \n+    if 'LinkedLineItem' in record_types:\n+        df_linked = df[df['RecordType'] == 'LinkedLineItem'].copy()\n+    else:\n+        # Fallback to all records if LinkedLineItem doesn't exist\n+        df_linked = df.copy()\n+\n+    # Fill NaN for LinkedAccountId/Name\n+    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n+    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n+\n+    # Convert numeric columns to numeric\n+    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n+        if col in df_linked.columns:\n+            df_linked[col] = pd.to_numeric(df_linked[col], errors='coerce').fillna(0.0)\n+\n+    # Summarize by LinkedAccount\n+    agg_dict = {}\n+    if 'TotalCost' in df_linked.columns: agg_dict['TotalCost'] = 'sum'\n+    if 'CostBeforeTax' in df_linked.columns: agg_dict['CostBeforeTax'] = 'sum'\n+    if 'TaxAmount' in df_linked.columns: agg_dict['TaxAmount'] = 'sum'\n+\n+    summary = df_linked.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n+\n+    # Sort by TotalCost descending\n+    if 'TotalCost' in summary.columns:\n+        summary = summary.sort_values(by='TotalCost', ascending=False)\n+\n+    print(\"\\nBilling Summary by Linked Account:\")\n+    print(\"=\" * 85)\n+    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n+    print(header)\n+    print(\"-\" * 85)\n+\n+    for _, row in summary.iterrows():\n+        name = str(row['LinkedAccountName'])[:35]\n+        aid = str(row['LinkedAccountId'])\n+        total = row.get('TotalCost', 0)\n+        tax = row.get('TaxAmount', 0)\n+        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n+\n+    if 'TotalCost' in summary.columns:\n+        total_sum = summary['TotalCost'].sum()\n+        print(\"-\" * 85)\n+        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n+    print(\"=\" * 85)\n+\n+    # Add a breakdown by service for the top account if requested or just show it anyway?\n+    # Let's show top 5 accounts service breakdown.\n+    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n+    for _, row in summary.head(5).iterrows():\n+        aid = row['LinkedAccountId']\n+        name = row['LinkedAccountName']\n+        print(f\"\\nBreakdown for {name} ({aid}):\")\n+        \n+        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n+        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n+        \n+        for svc, srow in svc_summary.head(10).iterrows():\n+            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n+        if len(svc_summary) > 10:\n+            print(f\"  ... and {len(svc_summary)-10} more services\")\n+\n+if __name__ == \"__main__\":\n+    if len(sys.argv) > 1:\n+        file_path = sys.argv[1]\n+    else:\n+        file_path = 'ecsv_12_2025.csv'\n+    \n+    summarize_billing(file_path)\n",
            "fileName": "summarize-ecsv.py",
            "filePath": "/Users/bob/git/dxw/aws-stuff/summarize-ecsv.py",
            "originalContent": "",
            "newContent": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to only LinkedLineItem to avoid summary rows if they exist\n    # Based on the sample, 'LinkedLineItem' seems to be the detailed records for linked accounts.\n    # 'PayerLineItem' records with empty LinkedAccountId seem to be the same data but from the payer's perspective.\n    # If we sum both, we might double count.\n    \n    # Let's check unique RecordTypes first to be sure\n    record_types = df['RecordType'].unique()\n    \n    if 'LinkedLineItem' in record_types:\n        df_linked = df[df['RecordType'] == 'LinkedLineItem'].copy()\n    else:\n        # Fallback to all records if LinkedLineItem doesn't exist\n        df_linked = df.copy()\n\n    # Fill NaN for LinkedAccountId/Name\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_linked.columns:\n            df_linked[col] = pd.to_numeric(df_linked[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_linked.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_linked.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_linked.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_linked.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n",
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    {
      "id": "1a6f6089-5602-452f-8b06-e2386fd507ce",
      "timestamp": "2026-01-28T16:31:34.346Z",
      "type": "gemini",
      "content": "I'll run the `summarize-ecsv.py` script to verify it correctly summarizes the billing data from `ecsv_12_2025.csv`.",
      "thoughts": [
        {
          "subject": "Initiating Testing Procedures",
          "description": "I'm starting the execution of the script using the provided CSV data. The goal is to observe its behavior and pinpoint any unexpected results or errors. So far, the process is going well.",
          "timestamp": "2026-01-28T16:31:34.043Z"
        }
      ],
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          "name": "run_shell_command",
          "args": {
            "command": "python3 summarize-ecsv.py ecsv_12_2025.csv"
          },
          "result": [
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                "name": "run_shell_command",
                "response": {
                  "output": "Command: python3 summarize-ecsv.py ecsv_12_2025.csv\nDirectory: (root)\nOutput: Reading ecsv_12_2025.csv...\n\nBilling Summary by Linked Account:\n=====================================================================================\nAccount Name                        | Account ID      |   Total Cost |        Tax\n-------------------------------------------------------------------------------------\ndxw-govpress                        | 666653442229.0  | $   5,293.91 | $   882.35\ndxw                                 | 396871851846.0  | $   4,723.91 | $   787.27\ndxw hosting - NHS England           | 661178850043.0  | $   3,401.83 | $   566.95\ndxw hosting - GDS                   | 841480728064.0  | $   2,954.81 | $   492.45\ndxw-judiciary-dalmatian             | 571543455290.0  | $   2,147.26 | $   357.94\ndxw-dalmatian-1                     | 52666621102.0   | $   1,345.96 | $   224.33\ndxw-nao-dalmatian                   | 984225123583.0  | $   1,272.44 | $   212.12\ndxw hosting - MTVH                  | 876401144910.0  | $   1,204.36 | $   200.71\ndxw-dhsc                            | 504027283968.0  | $     980.42 | $   163.42\ndxw - Dalmatian                     | 511700466171.0  | $     715.19 | $   119.20\ndxw-mtvhgp                          | 966086556319.0  | $     681.96 | $   113.67\ndxw-rwm                             | 302222309765.0  | $     563.11 | $    93.86\ndxw-fcdo                            | 799898416595.0  | $     560.92 | $    93.48\ndxw-stgeorges                       | 149524467025.0  | $     521.21 | $    86.84\nCID - Prod                          | 12755198934.0   | $     507.58 | $    84.56\ndxw-esht                            | 975049938928.0  | $     484.48 | $    80.73\nCID - Staging                       | 590183849451.0  | $     481.72 | $    80.32\ndxw-ons                             | 225709814079.0  | $     402.84 | $    67.14\ndxw-natcen                          | 429334471753.0  | $     338.72 | $    56.48\ndxw-bas                             | 419128131613.0  | $     338.41 | $    56.44\ndxw-essex                           | 891376962999.0  | $     265.22 | $    44.20\ndxw-dalmatian-v1-pentest            | 932446864135.0  | $     182.93 | $    30.48\nHelpful Transfer                    | 936938484656.0  | $     170.60 | $    28.43\ndxw-dfe-skills                      | 219661291364.0  | $      56.78 | $     9.45\ndxw - ash                           | 664883557209.0  | $      53.61 | $     8.92\ndxw - chris                         | 543586043228.0  | $      21.59 | $     3.60\ndxw-dfe-dalmatian                   | 129730198921.0  | $      15.33 | $     2.54\nstats-user-net                      | 572921893846.0  | $      10.73 | $     1.80\ndxw-dfe-fh                          | 42329559691.0   | $       6.30 | $     1.04\ndxw - lee                           | 580548153124.0  | $       5.57 | $     0.92\ndxw-beis-roda                       | 127426043703.0  | $       0.77 | $     0.13\ndxw-gld                             | 470396499948.0  | $       0.44 | $     0.06\ndxw-bob                             | 893439696758.0  | $       0.13 | $     0.02\nLambeth Docs                        | 220575105249.0  | $       0.00 | $     0.00\n-------------------------------------------------------------------------------------\nTOTAL                                                 | $  29,711.06\n=====================================================================================\n\nTop 5 Accounts - Service Breakdown:\n\nBreakdown for dxw-govpress (666653442229.0):\n  - Amazon Relational Database Service                : $  1,502.19\n  - Amazon CloudFront                                 : $    966.56\n  - Amazon Elastic Compute Cloud                      : $    455.45\n  - AWS Data Transfer                                 : $    370.28\n  - Amazon EC2 Container Registry (ECR)               : $    320.70\n  - Amazon Elastic File System                        : $    312.91\n  - AmazonCloudWatch                                  : $    252.97\n  - AWS Key Management Service                        : $    212.17\n  - AWS WAF                                           : $    164.53\n  - Amazon ElastiCache                                : $    135.71\n  ... and 18 more services\n\nBreakdown for dxw (396871851846.0):\n  - Savings Plans for AWS Compute usage               : $  3,571.19\n  - AWS Support (Business)                            : $    429.44\n  - Amazon Elastic File System                        : $    250.72\n  - Amazon Elastic Compute Cloud                      : $    133.24\n  - Amazon Relational Database Service                : $    107.73\n  - Amazon Simple Storage Service                     : $     72.86\n  - Amazon Route 53                                   : $     36.11\n  - Amazon Virtual Private Cloud                      : $     31.25\n  - Amazon CloudFront                                 : $     24.49\n  - AWS Cost Explorer                                 : $     17.70\n  ... and 13 more services\n\nBreakdown for dxw hosting - NHS England (661178850043.0):\n  - Amazon Relational Database Service                : $  1,623.81\n  - Amazon CloudFront                                 : $    821.33\n  - AWS Support (Business)                            : $    309.26\n  - Amazon OpenSearch Service                         : $    216.41\n  - AWS WAF                                           : $    102.05\n  - Amazon Elastic Compute Cloud                      : $     98.95\n  - AWS Data Transfer                                 : $     58.47\n  - Elastic Load Balancing                            : $     34.59\n  - Amazon Virtual Private Cloud                      : $     31.35\n  - Amazon Elastic File System                        : $     29.11\n  ... and 17 more services\n\nBreakdown for dxw hosting - GDS (841480728064.0):\n  - Amazon CloudFront                                 : $  1,068.33\n  - Amazon Relational Database Service                : $    845.06\n  - Amazon Elastic Compute Cloud                      : $    193.44\n  - AWS Data Transfer                                 : $    186.48\n  - AWS WAF                                           : $    175.61\n  - Amazon Elastic File System                        : $    100.97\n  - AmazonCloudWatch                                  : $     77.21\n  - AWS Key Management Service                        : $     72.51\n  - Elastic Load Balancing                            : $     56.11\n  - Amazon Virtual Private Cloud                      : $     53.58\n  ... and 13 more services\n\nBreakdown for dxw-judiciary-dalmatian (571543455290.0):\n  - Amazon Relational Database Service                : $    764.89\n  - Amazon OpenSearch Service                         : $    447.87\n  - Amazon Elastic Compute Cloud                      : $    269.57\n  - Amazon CloudFront                                 : $    178.10\n  - Elastic Load Balancing                            : $     98.87\n  - AWS WAF                                           : $     94.94\n  - AWS Data Transfer                                 : $     75.10\n  - Amazon Virtual Private Cloud                      : $     71.45\n  - AmazonCloudWatch                                  : $     50.68\n  - Amazon Elastic File System                        : $     38.34\n  ... and 15 more services\nError: (none)\nExit Code: 0\nSignal: 0\nBackground PIDs: (none)\nProcess Group PGID: 89146"
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:35:05.146Z",
          "resultDisplay": "Reading ecsv_12_2025.csv...\n\nBilling Summary by Linked Account:\n=====================================================================================\nAccount Name                        | Account ID      |   Total Cost |        Tax\n-------------------------------------------------------------------------------------\ndxw-govpress                        | 666653442229.0  | $   5,293.91 | $   882.35\ndxw                                 | 396871851846.0  | $   4,723.91 | $   787.27\ndxw hosting - NHS England           | 661178850043.0  | $   3,401.83 | $   566.95\ndxw hosting - GDS                   | 841480728064.0  | $   2,954.81 | $   492.45\ndxw-judiciary-dalmatian             | 571543455290.0  | $   2,147.26 | $   357.94\ndxw-dalmatian-1                     | 52666621102.0   | $   1,345.96 | $   224.33\ndxw-nao-dalmatian                   | 984225123583.0  | $   1,272.44 | $   212.12\ndxw hosting - MTVH                  | 876401144910.0  | $   1,204.36 | $   200.71\ndxw-dhsc                            | 504027283968.0  | $     980.42 | $   163.42\ndxw - Dalmatian                     | 511700466171.0  | $     715.19 | $   119.20\ndxw-mtvhgp                          | 966086556319.0  | $     681.96 | $   113.67\ndxw-rwm                             | 302222309765.0  | $     563.11 | $    93.86\ndxw-fcdo                            | 799898416595.0  | $     560.92 | $    93.48\ndxw-stgeorges                       | 149524467025.0  | $     521.21 | $    86.84\nCID - Prod                          | 12755198934.0   | $     507.58 | $    84.56\ndxw-esht                            | 975049938928.0  | $     484.48 | $    80.73\nCID - Staging                       | 590183849451.0  | $     481.72 | $    80.32\ndxw-ons                             | 225709814079.0  | $     402.84 | $    67.14\ndxw-natcen                          | 429334471753.0  | $     338.72 | $    56.48\ndxw-bas                             | 419128131613.0  | $     338.41 | $    56.44\ndxw-essex                           | 891376962999.0  | $     265.22 | $    44.20\ndxw-dalmatian-v1-pentest            | 932446864135.0  | $     182.93 | $    30.48\nHelpful Transfer                    | 936938484656.0  | $     170.60 | $    28.43\ndxw-dfe-skills                      | 219661291364.0  | $      56.78 | $     9.45\ndxw - ash                           | 664883557209.0  | $      53.61 | $     8.92\ndxw - chris                         | 543586043228.0  | $      21.59 | $     3.60\ndxw-dfe-dalmatian                   | 129730198921.0  | $      15.33 | $     2.54\nstats-user-net                      | 572921893846.0  | $      10.73 | $     1.80\ndxw-dfe-fh                          | 42329559691.0   | $       6.30 | $     1.04\ndxw - lee                           | 580548153124.0  | $       5.57 | $     0.92\ndxw-beis-roda                       | 127426043703.0  | $       0.77 | $     0.13\ndxw-gld                             | 470396499948.0  | $       0.44 | $     0.06\ndxw-bob                             | 893439696758.0  | $       0.13 | $     0.02\nLambeth Docs                        | 220575105249.0  | $       0.00 | $     0.00\n-------------------------------------------------------------------------------------\nTOTAL                                                 | $  29,711.06\n=====================================================================================\n\nTop 5 Accounts - Service Breakdown:\n\nBreakdown for dxw-govpress (666653442229.0):\n  - Amazon Relational Database Service                : $  1,502.19\n  - Amazon CloudFront                                 : $    966.56\n  - Amazon Elastic Compute Cloud                      : $    455.45\n  - AWS Data Transfer                                 : $    370.28\n  - Amazon EC2 Container Registry (ECR)               : $    320.70\n  - Amazon Elastic File System                        : $    312.91\n  - AmazonCloudWatch                                  : $    252.97\n  - AWS Key Management Service                        : $    212.17\n  - AWS WAF                                           : $    164.53\n  - Amazon ElastiCache                                : $    135.71\n  ... and 18 more services\n\nBreakdown for dxw (396871851846.0):\n  - Savings Plans for AWS Compute usage               : $  3,571.19\n  - AWS Support (Business)                            : $    429.44\n  - Amazon Elastic File System                        : $    250.72\n  - Amazon Elastic Compute Cloud                      : $    133.24\n  - Amazon Relational Database Service                : $    107.73\n  - Amazon Simple Storage Service                     : $     72.86\n  - Amazon Route 53                                   : $     36.11\n  - Amazon Virtual Private Cloud                      : $     31.25\n  - Amazon CloudFront                                 : $     24.49\n  - AWS Cost Explorer                                 : $     17.70\n  ... and 13 more services\n\nBreakdown for dxw hosting - NHS England (661178850043.0):\n  - Amazon Relational Database Service                : $  1,623.81\n  - Amazon CloudFront                                 : $    821.33\n  - AWS Support (Business)                            : $    309.26\n  - Amazon OpenSearch Service                         : $    216.41\n  - AWS WAF                                           : $    102.05\n  - Amazon Elastic Compute Cloud                      : $     98.95\n  - AWS Data Transfer                                 : $     58.47\n  - Elastic Load Balancing                            : $     34.59\n  - Amazon Virtual Private Cloud                      : $     31.35\n  - Amazon Elastic File System                        : $     29.11\n  ... and 17 more services\n\nBreakdown for dxw hosting - GDS (841480728064.0):\n  - Amazon CloudFront                                 : $  1,068.33\n  - Amazon Relational Database Service                : $    845.06\n  - Amazon Elastic Compute Cloud                      : $    193.44\n  - AWS Data Transfer                                 : $    186.48\n  - AWS WAF                                           : $    175.61\n  - Amazon Elastic File System                        : $    100.97\n  - AmazonCloudWatch                                  : $     77.21\n  - AWS Key Management Service                        : $     72.51\n  - Elastic Load Balancing                            : $     56.11\n  - Amazon Virtual Private Cloud                      : $     53.58\n  ... and 13 more services\n\nBreakdown for dxw-judiciary-dalmatian (571543455290.0):\n  - Amazon Relational Database Service                : $    764.89\n  - Amazon OpenSearch Service                         : $    447.87\n  - Amazon Elastic Compute Cloud                      : $    269.57\n  - Amazon CloudFront                                 : $    178.10\n  - Elastic Load Balancing                            : $     98.87\n  - AWS WAF                                           : $     94.94\n  - AWS Data Transfer                                 : $     75.10\n  - Amazon Virtual Private Cloud                      : $     71.45\n  - AmazonCloudWatch                                  : $     50.68\n  - Amazon Elastic File System                        : $     38.34\n  ... and 15 more services",
          "displayName": "Shell",
          "description": "This tool executes a given shell command as `bash -c <command>`. Command can start background processes using `&`. Command is executed as a subprocess that leads its own process group. Command process group can be terminated as `kill -- -PGID` or signaled as `kill -s SIGNAL -- -PGID`.\n\n      The following information is returned:\n\n      Command: Executed command.\n      Directory: Directory where command was executed, or `(root)`.\n      Stdout: Output on stdout stream. Can be `(empty)` or partial on error and for any unwaited background processes.\n      Stderr: Output on stderr stream. Can be `(empty)` or partial on error and for any unwaited background processes.\n      Error: Error or `(none)` if no error was reported for the subprocess.\n      Exit Code: Exit code or `(none)` if terminated by signal.\n      Signal: Signal number or `(none)` if no signal was received.\n      Background PIDs: List of background processes started or `(none)`.\n      Process Group PGID: Process group started or `(none)`",
          "renderOutputAsMarkdown": false
        }
      ]
    },
    {
      "id": "897e7a66-9216-44f0-9cc6-37b47a81d690",
      "timestamp": "2026-01-28T16:35:15.175Z",
      "type": "gemini",
      "content": "I'll refine the `summarize-ecsv.py` script to format account IDs as strings without trailing decimals, ensuring a cleaner output.",
      "thoughts": [
        {
          "subject": "Polishing the Results",
          "description": "I've refined the script's output, focusing on enhancing readability. The primary change involves eliminating the decimal places from the account IDs, streamlining the presentation. The summaries generated are already clear, so just a cosmetic tweak this time.",
          "timestamp": "2026-01-28T16:35:14.884Z"
        }
      ],
      "tokens": {
        "input": 38314,
        "output": 256,
        "cached": 35364,
        "thoughts": 51,
        "tool": 0,
        "total": 38621
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "replace-1769618115170-721de3ee533b3",
          "name": "replace",
          "args": {
            "old_string": "    # Fill NaN for LinkedAccountId/Name\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')",
            "new_string": "    # Fill NaN for LinkedAccountId/Name\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n    # Remove .0 if it's a float-represented integer string\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].apply(lambda x: x[:-2] if x.endswith('.0') else x)\n    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')",
            "instruction": "Format LinkedAccountId as a string without .0 suffix if it's a numeric ID.",
            "file_path": "/Users/bob/git/dxw/aws-stuff/summarize-ecsv.py"
          },
          "result": [
            {
              "functionResponse": {
                "id": "replace-1769618115170-721de3ee533b3",
                "name": "replace",
                "response": {
                  "error": "[Operation Cancelled] Reason: User cancelled the operation."
                }
              }
            }
          ],
          "status": "cancelled",
          "timestamp": "2026-01-28T16:35:47.424Z",
          "resultDisplay": {
            "fileDiff": "Index: summarize-ecsv.py\n===================================================================\n--- summarize-ecsv.py\tCurrent\n+++ summarize-ecsv.py\tProposed\n@@ -29,6 +29,8 @@\n \n     # Fill NaN for LinkedAccountId/Name\n     df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n+    # Remove .0 if it's a float-represented integer string\n+    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].apply(lambda x: x[:-2] if x.endswith('.0') else x)\n     df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n \n     # Convert numeric columns to numeric\n",
            "fileName": "summarize-ecsv.py",
            "originalContent": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to only LinkedLineItem to avoid summary rows if they exist\n    # Based on the sample, 'LinkedLineItem' seems to be the detailed records for linked accounts.\n    # 'PayerLineItem' records with empty LinkedAccountId seem to be the same data but from the payer's perspective.\n    # If we sum both, we might double count.\n    \n    # Let's check unique RecordTypes first to be sure\n    record_types = df['RecordType'].unique()\n    \n    if 'LinkedLineItem' in record_types:\n        df_linked = df[df['RecordType'] == 'LinkedLineItem'].copy()\n    else:\n        # Fallback to all records if LinkedLineItem doesn't exist\n        df_linked = df.copy()\n\n    # Fill NaN for LinkedAccountId/Name\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_linked.columns:\n            df_linked[col] = pd.to_numeric(df_linked[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_linked.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_linked.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_linked.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_linked.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n",
            "newContent": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to only LinkedLineItem to avoid summary rows if they exist\n    # Based on the sample, 'LinkedLineItem' seems to be the detailed records for linked accounts.\n    # 'PayerLineItem' records with empty LinkedAccountId seem to be the same data but from the payer's perspective.\n    # If we sum both, we might double count.\n    \n    # Let's check unique RecordTypes first to be sure\n    record_types = df['RecordType'].unique()\n    \n    if 'LinkedLineItem' in record_types:\n        df_linked = df[df['RecordType'] == 'LinkedLineItem'].copy()\n    else:\n        # Fallback to all records if LinkedLineItem doesn't exist\n        df_linked = df.copy()\n\n    # Fill NaN for LinkedAccountId/Name\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n    # Remove .0 if it's a float-represented integer string\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].apply(lambda x: x[:-2] if x.endswith('.0') else x)\n    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_linked.columns:\n            df_linked[col] = pd.to_numeric(df_linked[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_linked.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_linked.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_linked.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_linked.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n",
            "filePath": "/Users/bob/git/dxw/aws-stuff/summarize-ecsv.py"
          },
          "displayName": "Edit",
          "description": "Replaces text within a file. By default, replaces a single occurrence, but can replace multiple occurrences when `expected_replacements` is specified. This tool requires providing significant context around the change to ensure precise targeting. Always use the read_file tool to examine the file's current content before attempting a text replacement.\n      \n      The user has the ability to modify the `new_string` content. If modified, this will be stated in the response.\n      \n      Expectation for required parameters:\n      1. `old_string` MUST be the exact literal text to replace (including all whitespace, indentation, newlines, and surrounding code etc.).\n      2. `new_string` MUST be the exact literal text to replace `old_string` with (also including all whitespace, indentation, newlines, and surrounding code etc.). Ensure the resulting code is correct and idiomatic and that `old_string` and `new_string` are different.\n      3. `instruction` is the detailed instruction of what needs to be changed. It is important to Make it specific and detailed so developers or large language models can understand what needs to be changed and perform the changes on their own if necessary. \n      4. NEVER escape `old_string` or `new_string`, that would break the exact literal text requirement.\n      **Important:** If ANY of the above are not satisfied, the tool will fail. CRITICAL for `old_string`: Must uniquely identify the single instance to change. Include at least 3 lines of context BEFORE and AFTER the target text, matching whitespace and indentation precisely. If this string matches multiple locations, or does not match exactly, the tool will fail.\n      5. Prefer to break down complex and long changes into multiple smaller atomic calls to this tool. Always check the content of the file after changes or not finding a string to match.\n      **Multiple replacements:** Set `expected_replacements` to the number of occurrences you want to replace. The tool will replace ALL occurrences that match `old_string` exactly. Ensure the number of replacements matches your expectation.",
          "renderOutputAsMarkdown": true
        }
      ]
    },
    {
      "id": "88088531-54ba-43fc-be7c-a9100ecf52aa",
      "timestamp": "2026-01-28T16:35:47.426Z",
      "type": "info",
      "content": "Request cancelled."
    },
    {
      "id": "489fb294-ba9e-47a1-bc8c-5e1367dbeac0",
      "timestamp": "2026-01-28T16:36:26.186Z",
      "type": "user",
      "content": "If LinkedAccountId isnt set assume its for the payer account"
    },
    {
      "id": "80886d20-64db-4670-b310-02a9379cb7c5",
      "timestamp": "2026-01-28T16:36:45.568Z",
      "type": "gemini",
      "content": "I'll analyze the distribution of record types and missing `LinkedAccountId` values in `ecsv_12_2025.csv` to ensure the script correctly attributes costs without double-counting.",
      "thoughts": [
        {
          "subject": "Investigating Empty Fields",
          "description": "I'm currently working on modifying `summarize-ecsv.py` to gracefully handle empty `LinkedAccountId` values. My initial plan is to default these transactions to the payer account, ensuring no data is lost. I've begun reviewing the provided CSV data to better understand the distribution of these empty fields and their implications.",
          "timestamp": "2026-01-28T16:36:36.732Z"
        },
        {
          "subject": "Revising Filtering Logic",
          "description": "I've examined the existing script's filtering based on `RecordType`, and realized I need to modify it. Previously, it focused on 'LinkedLineItem'. To accommodate empty `LinkedAccountId` values (and by extension, the payer account itself), I plan to modify the script to include *all* records. This way, I capture all costs, whether linked or directly attributed to the payer. I'm focusing on ensuring accurate aggregation now.",
          "timestamp": "2026-01-28T16:36:42.354Z"
        },
        {
          "subject": "Implementing Account Mapping",
          "description": "I'm now focusing on the core logic: replacing empty `LinkedAccountId` values with the `PayerAccountId`. I'll also handle the corresponding `LinkedAccountName`.  My immediate concern is accurately identifying and modifying these null values, ensuring all relevant cost data is correctly attributed to the payer. I'm considering using `fillna` for these operations within the pandas DataFrame.",
          "timestamp": "2026-01-28T16:36:43.534Z"
        },
        {
          "subject": "Evaluating Potential Double Counting",
          "description": "I'm now contemplating potential double-counting issues.  Since the payer's account ID might appear in both `PayerLineItem` and `LinkedLineItem` records (with an empty `LinkedAccountId`),  merging the two datasets directly may lead to inflated costs.  My focus is shifting towards identifying and mitigating these overlaps to ensure accurate aggregation within the modified script. I'll need to carefully consider data deduplication.",
          "timestamp": "2026-01-28T16:36:44.372Z"
        },
        {
          "subject": "Addressing Data Duplication",
          "description": "I'm now prioritizing the mitigation of potential double-counting. After reviewing the CSV and the record types, I realized that I need to filter specifically *within* the `PayerLineItem` records. The payer ID may appear as a `LinkedAccountId`. To prevent inflated costs, I'll modify the script to selectively include payer costs *only* if `LinkedAccountId` is empty, avoiding duplication. I will verify this through data inspection after implementing the initial modifications.",
          "timestamp": "2026-01-28T16:36:45.317Z"
        }
      ],
      "tokens": {
        "input": 38605,
        "output": 110,
        "cached": 14748,
        "thoughts": 1234,
        "tool": 0,
        "total": 39949
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "run_shell_command-1769618205566-77b9f63944897",
          "name": "run_shell_command",
          "args": {
            "command": "python3 -c \"import pandas as pd; df=pd.read_csv('ecsv_12_2025.csv', low_memory=False); print(df.groupby(['RecordType', df['LinkedAccountId'].isna()]).size())\""
          },
          "result": [
            {
              "functionResponse": {
                "id": "run_shell_command-1769618205566-77b9f63944897",
                "name": "run_shell_command",
                "response": {
                  "output": "Command: python3 -c \"import pandas as pd; df=pd.read_csv('ecsv_12_2025.csv', low_memory=False); print(df.groupby(['RecordType', df['LinkedAccountId'].isna()]).size())\"\nDirectory: (root)\nOutput: RecordType      LinkedAccountId\nAccountTotal    False                34\nCBRounding      True                  1\nInvoiceTotal    True                  1\nLinkedLineItem  False              5266\nPayerLineItem   True                801\nStatementTotal  True                  1\ndtype: int64\nError: (none)\nExit Code: 0\nSignal: 0\nBackground PIDs: (none)\nProcess Group PGID: 90581"
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:39:57.589Z",
          "resultDisplay": "RecordType      LinkedAccountId\nAccountTotal    False                34\nCBRounding      True                  1\nInvoiceTotal    True                  1\nLinkedLineItem  False              5266\nPayerLineItem   True                801\nStatementTotal  True                  1\ndtype: int64",
          "displayName": "Shell",
          "description": "This tool executes a given shell command as `bash -c <command>`. Command can start background processes using `&`. Command is executed as a subprocess that leads its own process group. Command process group can be terminated as `kill -- -PGID` or signaled as `kill -s SIGNAL -- -PGID`.\n\n      The following information is returned:\n\n      Command: Executed command.\n      Directory: Directory where command was executed, or `(root)`.\n      Stdout: Output on stdout stream. Can be `(empty)` or partial on error and for any unwaited background processes.\n      Stderr: Output on stderr stream. Can be `(empty)` or partial on error and for any unwaited background processes.\n      Error: Error or `(none)` if no error was reported for the subprocess.\n      Exit Code: Exit code or `(none)` if terminated by signal.\n      Signal: Signal number or `(none)` if no signal was received.\n      Background PIDs: List of background processes started or `(none)`.\n      Process Group PGID: Process group started or `(none)`",
          "renderOutputAsMarkdown": false
        }
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    {
      "id": "9e8f9eda-9a98-4b3b-ac3d-8f139eb6b6e0",
      "timestamp": "2026-01-28T16:40:06.480Z",
      "type": "gemini",
      "content": "I'll update `summarize-ecsv.py` to include `PayerLineItem` records, attributing them to the payer account when `LinkedAccountId` is missing, and I'll also fix the account ID formatting.",
      "thoughts": [
        {
          "subject": "Considering Data Anomalies",
          "description": "I'm currently focused on the `LinkedLineItem` and `PayerLineItem` tables. It seems there's a strong correlation with the `LinkedAccountId` field. My working hypothesis is that the presence or absence of a value in this field is a key discriminator. I am excluding `AccountTotal` and `CBRounding` for now.",
          "timestamp": "2026-01-28T16:40:01.433Z"
        },
        {
          "subject": "Evaluating Record Types",
          "description": "I've determined I'll filter for `LinkedLineItem` and `PayerLineItem` records. Then, I'll impute the missing `LinkedAccountId` values with corresponding `PayerAccountId` values and update `LinkedAccountName`. I'll also address the numeric formatting issues. I've re-evaluated the `AccountTotal` records and decided they should remain excluded, as those already have `LinkedAccountId` populated and would introduce double-counting.",
          "timestamp": "2026-01-28T16:40:03.680Z"
        }
      ],
      "tokens": {
        "input": 38885,
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        "cached": 35848,
        "thoughts": 272,
        "tool": 0,
        "total": 40108
      },
      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "replace-1769618406477-41583d63499748",
          "name": "replace",
          "args": {
            "file_path": "/Users/bob/git/dxw/aws-stuff/summarize-ecsv.py",
            "new_string": "    # Filter to LinkedLineItem and PayerLineItem to get all costs without double counting summary rows\n    valid_types = ['LinkedLineItem', 'PayerLineItem']\n    df_filtered = df[df['RecordType'].isin(valid_types)].copy()\n\n    # If LinkedAccountId is missing, assume it belongs to the payer account\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].fillna(df_filtered['PayerAccountId'])\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].fillna(df_filtered['PayerAccountName'])\n\n    # Format LinkedAccountId as string and remove .0 suffix if present\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].astype(str).apply(lambda x: x[:-2] if x.endswith('.0') else x)\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_filtered.columns:\n            df_filtered[col] = pd.to_numeric(df_filtered[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_filtered.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_filtered.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_filtered.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_filtered.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n",
            "instruction": "Include PayerLineItem records and attribute them to the PayerAccountId if LinkedAccountId is missing. Also fix the .0 formatting for account IDs.",
            "old_string": "    # Filter to only LinkedLineItem to avoid summary rows if they exist\n    # Based on the sample, 'LinkedLineItem' seems to be the detailed records for linked accounts.\n    # 'PayerLineItem' records with empty LinkedAccountId seem to be the same data but from the payer's perspective.\n    # If we sum both, we might double count.\n    \n    # Let's check unique RecordTypes first to be sure\n    record_types = df['RecordType'].unique()\n    \n    if 'LinkedLineItem' in record_types:\n        df_linked = df[df['RecordType'] == 'LinkedLineItem'].copy()\n    else:\n        # Fallback to all records if LinkedLineItem doesn't exist\n        df_linked = df.copy()\n\n    # Fill NaN for LinkedAccountId/Name\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_linked.columns:\n            df_linked[col] = pd.to_numeric(df_linked[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_linked.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_linked.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_linked.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_linked.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n"
          },
          "result": [
            {
              "functionResponse": {
                "id": "replace-1769618406477-41583d63499748",
                "name": "replace",
                "response": {
                  "output": "Successfully modified file: /Users/bob/git/dxw/aws-stuff/summarize-ecsv.py (1 replacements)."
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:40:14.958Z",
          "resultDisplay": {
            "fileDiff": "Index: summarize-ecsv.py\n===================================================================\n--- summarize-ecsv.py\tCurrent\n+++ summarize-ecsv.py\tProposed\n@@ -13,36 +13,30 @@\n         print(f\"Error reading CSV: {e}\")\n         return\n \n-    # Filter to only LinkedLineItem to avoid summary rows if they exist\n-    # Based on the sample, 'LinkedLineItem' seems to be the detailed records for linked accounts.\n-    # 'PayerLineItem' records with empty LinkedAccountId seem to be the same data but from the payer's perspective.\n-    # If we sum both, we might double count.\n+    # Filter to LinkedLineItem and PayerLineItem to get all costs without double counting summary rows\n+    valid_types = ['LinkedLineItem', 'PayerLineItem']\n+    df_filtered = df[df['RecordType'].isin(valid_types)].copy()\n \n-    # Let's check unique RecordTypes first to be sure\n-    record_types = df['RecordType'].unique()\n+    # If LinkedAccountId is missing, assume it belongs to the payer account\n+    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].fillna(df_filtered['PayerAccountId'])\n+    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].fillna(df_filtered['PayerAccountName'])\n \n-    if 'LinkedLineItem' in record_types:\n-        df_linked = df[df['RecordType'] == 'LinkedLineItem'].copy()\n-    else:\n-        # Fallback to all records if LinkedLineItem doesn't exist\n-        df_linked = df.copy()\n+    # Format LinkedAccountId as string and remove .0 suffix if present\n+    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].astype(str).apply(lambda x: x[:-2] if x.endswith('.0') else x)\n+    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n \n-    # Fill NaN for LinkedAccountId/Name\n-    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n-    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n-\n     # Convert numeric columns to numeric\n     for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n-        if col in df_linked.columns:\n-            df_linked[col] = pd.to_numeric(df_linked[col], errors='coerce').fillna(0.0)\n+        if col in df_filtered.columns:\n+            df_filtered[col] = pd.to_numeric(df_filtered[col], errors='coerce').fillna(0.0)\n \n     # Summarize by LinkedAccount\n     agg_dict = {}\n-    if 'TotalCost' in df_linked.columns: agg_dict['TotalCost'] = 'sum'\n-    if 'CostBeforeTax' in df_linked.columns: agg_dict['CostBeforeTax'] = 'sum'\n-    if 'TaxAmount' in df_linked.columns: agg_dict['TaxAmount'] = 'sum'\n+    if 'TotalCost' in df_filtered.columns: agg_dict['TotalCost'] = 'sum'\n+    if 'CostBeforeTax' in df_filtered.columns: agg_dict['CostBeforeTax'] = 'sum'\n+    if 'TaxAmount' in df_filtered.columns: agg_dict['TaxAmount'] = 'sum'\n \n-    summary = df_linked.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n+    summary = df_filtered.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n \n     # Sort by TotalCost descending\n     if 'TotalCost' in summary.columns:\n",
            "fileName": "summarize-ecsv.py",
            "filePath": "/Users/bob/git/dxw/aws-stuff/summarize-ecsv.py",
            "originalContent": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to only LinkedLineItem to avoid summary rows if they exist\n    # Based on the sample, 'LinkedLineItem' seems to be the detailed records for linked accounts.\n    # 'PayerLineItem' records with empty LinkedAccountId seem to be the same data but from the payer's perspective.\n    # If we sum both, we might double count.\n    \n    # Let's check unique RecordTypes first to be sure\n    record_types = df['RecordType'].unique()\n    \n    if 'LinkedLineItem' in record_types:\n        df_linked = df[df['RecordType'] == 'LinkedLineItem'].copy()\n    else:\n        # Fallback to all records if LinkedLineItem doesn't exist\n        df_linked = df.copy()\n\n    # Fill NaN for LinkedAccountId/Name\n    df_linked['LinkedAccountId'] = df_linked['LinkedAccountId'].astype(str).replace('nan', 'Unknown')\n    df_linked['LinkedAccountName'] = df_linked['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_linked.columns:\n            df_linked[col] = pd.to_numeric(df_linked[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_linked.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_linked.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_linked.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_linked.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n",
            "newContent": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to LinkedLineItem and PayerLineItem to get all costs without double counting summary rows\n    valid_types = ['LinkedLineItem', 'PayerLineItem']\n    df_filtered = df[df['RecordType'].isin(valid_types)].copy()\n\n    # If LinkedAccountId is missing, assume it belongs to the payer account\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].fillna(df_filtered['PayerAccountId'])\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].fillna(df_filtered['PayerAccountName'])\n\n    # Format LinkedAccountId as string and remove .0 suffix if present\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].astype(str).apply(lambda x: x[:-2] if x.endswith('.0') else x)\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_filtered.columns:\n            df_filtered[col] = pd.to_numeric(df_filtered[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_filtered.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_filtered.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_filtered.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_filtered.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n",
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          "renderOutputAsMarkdown": true
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    {
      "id": "4e29aec1-e5a4-44ce-87bc-4ca0ebb630c7",
      "timestamp": "2026-01-28T16:40:18.506Z",
      "type": "gemini",
      "content": "I'll read `summarize-ecsv.py` to identify any remaining references to `df_linked` that need to be updated to `df_filtered`.",
      "thoughts": [
        {
          "subject": "Reviewing Script Modifications",
          "description": "I'm verifying that all instances of `df_linked` have been correctly replaced with `df_filtered` within the script. I've already checked the filtering and grouping sections, but I'm now systematically reviewing the remaining parts of the code to ensure consistency and prevent errors.",
          "timestamp": "2026-01-28T16:40:18.221Z"
        }
      ],
      "tokens": {
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      "model": "gemini-3-flash-preview",
      "toolCalls": [
        {
          "id": "read_file-1769618418504-2641b62913dea8",
          "name": "read_file",
          "args": {
            "file_path": "summarize-ecsv.py"
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          "result": [
            {
              "functionResponse": {
                "id": "read_file-1769618418504-2641b62913dea8",
                "name": "read_file",
                "response": {
                  "output": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to LinkedLineItem and PayerLineItem to get all costs without double counting summary rows\n    valid_types = ['LinkedLineItem', 'PayerLineItem']\n    df_filtered = df[df['RecordType'].isin(valid_types)].copy()\n\n    # If LinkedAccountId is missing, assume it belongs to the payer account\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].fillna(df_filtered['PayerAccountId'])\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].fillna(df_filtered['PayerAccountName'])\n\n    # Format LinkedAccountId as string and remove .0 suffix if present\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].astype(str).apply(lambda x: x[:-2] if x.endswith('.0') else x)\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_filtered.columns:\n            df_filtered[col] = pd.to_numeric(df_filtered[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_filtered.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_filtered.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_filtered.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_filtered.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n"
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          "timestamp": "2026-01-28T16:40:18.530Z",
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      "id": "78cf67e2-11b4-4eab-bb7d-ef6cc4e4e36a",
      "timestamp": "2026-01-28T16:40:25.515Z",
      "type": "gemini",
      "content": "I'll update the service breakdown section of `summarize-ecsv.py` to use `df_filtered` instead of the non-existent `df_linked`.",
      "thoughts": [
        {
          "subject": "Revising a DataFrame",
          "description": "I'm now zeroing in on a specific instance where `df_linked` is still being used, despite my earlier attempts to phase it out. The goal is clear: I must replace every instance of `df_linked` with `df_filtered` to ensure consistency. I've pinpointed the relevant line of code and am preparing to implement the substitution immediately.",
          "timestamp": "2026-01-28T16:40:25.219Z"
        }
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            "old_string": "        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n",
            "file_path": "/Users/bob/git/dxw/aws-stuff/summarize-ecsv.py",
            "instruction": "Use df_filtered instead of df_linked in the service breakdown loop.",
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          "timestamp": "2026-01-28T16:53:39.609Z",
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            "fileDiff": "Index: summarize-ecsv.py\n===================================================================\n--- summarize-ecsv.py\tCurrent\n+++ summarize-ecsv.py\tProposed\n@@ -69,7 +69,7 @@\n         name = row['LinkedAccountName']\n         print(f\"\\nBreakdown for {name} ({aid}):\")\n         \n-        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n+        account_df = df_filtered[df_filtered['LinkedAccountId'] == aid]\n         svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n         \n         for svc, srow in svc_summary.head(10).iterrows():\n",
            "fileName": "summarize-ecsv.py",
            "filePath": "/Users/bob/git/dxw/aws-stuff/summarize-ecsv.py",
            "originalContent": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to LinkedLineItem and PayerLineItem to get all costs without double counting summary rows\n    valid_types = ['LinkedLineItem', 'PayerLineItem']\n    df_filtered = df[df['RecordType'].isin(valid_types)].copy()\n\n    # If LinkedAccountId is missing, assume it belongs to the payer account\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].fillna(df_filtered['PayerAccountId'])\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].fillna(df_filtered['PayerAccountName'])\n\n    # Format LinkedAccountId as string and remove .0 suffix if present\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].astype(str).apply(lambda x: x[:-2] if x.endswith('.0') else x)\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_filtered.columns:\n            df_filtered[col] = pd.to_numeric(df_filtered[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_filtered.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_filtered.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_filtered.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_filtered.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_linked[df_linked['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n",
            "newContent": "import pandas as pd\nimport sys\n\ndef summarize_billing(file_path):\n    print(f\"Reading {file_path}...\")\n    try:\n        # Load the CSV\n        df = pd.read_csv(file_path, low_memory=False)\n    except FileNotFoundError:\n        print(f\"Error: File {file_path} not found.\")\n        return\n    except Exception as e:\n        print(f\"Error reading CSV: {e}\")\n        return\n\n    # Filter to LinkedLineItem and PayerLineItem to get all costs without double counting summary rows\n    valid_types = ['LinkedLineItem', 'PayerLineItem']\n    df_filtered = df[df['RecordType'].isin(valid_types)].copy()\n\n    # If LinkedAccountId is missing, assume it belongs to the payer account\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].fillna(df_filtered['PayerAccountId'])\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].fillna(df_filtered['PayerAccountName'])\n\n    # Format LinkedAccountId as string and remove .0 suffix if present\n    df_filtered['LinkedAccountId'] = df_filtered['LinkedAccountId'].astype(str).apply(lambda x: x[:-2] if x.endswith('.0') else x)\n    df_filtered['LinkedAccountName'] = df_filtered['LinkedAccountName'].astype(str).replace('nan', 'Unknown')\n\n    # Convert numeric columns to numeric\n    for col in ['TotalCost', 'CostBeforeTax', 'TaxAmount']:\n        if col in df_filtered.columns:\n            df_filtered[col] = pd.to_numeric(df_filtered[col], errors='coerce').fillna(0.0)\n\n    # Summarize by LinkedAccount\n    agg_dict = {}\n    if 'TotalCost' in df_filtered.columns: agg_dict['TotalCost'] = 'sum'\n    if 'CostBeforeTax' in df_filtered.columns: agg_dict['CostBeforeTax'] = 'sum'\n    if 'TaxAmount' in df_filtered.columns: agg_dict['TaxAmount'] = 'sum'\n\n    summary = df_filtered.groupby(['LinkedAccountId', 'LinkedAccountName']).agg(agg_dict).reset_index()\n\n    # Sort by TotalCost descending\n    if 'TotalCost' in summary.columns:\n        summary = summary.sort_values(by='TotalCost', ascending=False)\n\n    print(\"\\nBilling Summary by Linked Account:\")\n    print(\"=\" * 85)\n    header = f\"{'Account Name':<35} | {'Account ID':<15} | {'Total Cost':>12} | {'Tax':>10}\"\n    print(header)\n    print(\"-\" * 85)\n\n    for _, row in summary.iterrows():\n        name = str(row['LinkedAccountName'])[:35]\n        aid = str(row['LinkedAccountId'])\n        total = row.get('TotalCost', 0)\n        tax = row.get('TaxAmount', 0)\n        print(f\"{name:<35} | {aid:<15} | ${total:>11,.2f} | ${tax:>9,.2f}\")\n\n    if 'TotalCost' in summary.columns:\n        total_sum = summary['TotalCost'].sum()\n        print(\"-\" * 85)\n        print(f\"{'TOTAL':<53} | ${total_sum:>11,.2f}\")\n    print(\"=\" * 85)\n\n    # Add a breakdown by service for the top account if requested or just show it anyway?\n    # Let's show top 5 accounts service breakdown.\n    print(\"\\nTop 5 Accounts - Service Breakdown:\")\n    for _, row in summary.head(5).iterrows():\n        aid = row['LinkedAccountId']\n        name = row['LinkedAccountName']\n        print(f\"\\nBreakdown for {name} ({aid}):\")\n        \n        account_df = df_filtered[df_filtered['LinkedAccountId'] == aid]\n        svc_summary = account_df.groupby('ProductName').agg({'TotalCost': 'sum'}).sort_values(by='TotalCost', ascending=False)\n        \n        for svc, srow in svc_summary.head(10).iterrows():\n            print(f\"  - {svc:<50}: ${srow['TotalCost']:>10,.2f}\")\n        if len(svc_summary) > 10:\n            print(f\"  ... and {len(svc_summary)-10} more services\")\n\nif __name__ == \"__main__\":\n    if len(sys.argv) > 1:\n        file_path = sys.argv[1]\n    else:\n        file_path = 'ecsv_12_2025.csv'\n    \n    summarize_billing(file_path)\n",
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          "renderOutputAsMarkdown": true
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    {
      "id": "db072cb6-8658-4833-8040-85adba6b2f2d",
      "timestamp": "2026-01-28T16:53:52.474Z",
      "type": "gemini",
      "content": "I'll execute the `summarize-ecsv.py` script once more to confirm that the payer account's costs are now correctly aggregated and displayed.",
      "thoughts": [
        {
          "subject": "Evaluating the Results",
          "description": "I've re-run the script as instructed, and I'm currently scrutinizing the output. It should now reflect the updated cost allocations, specifically incorporating the expenses associated with payer account `396871851 846`. I'm verifying the accuracy of these new figures.",
          "timestamp": "2026-01-28T16:53:51.875Z"
        }
      ],
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          "id": "run_shell_command-1769619232471-21e237bcc453f8",
          "name": "run_shell_command",
          "args": {
            "command": "python3 summarize-ecsv.py ecsv_12_2025.csv"
          },
          "result": [
            {
              "functionResponse": {
                "id": "run_shell_command-1769619232471-21e237bcc453f8",
                "name": "run_shell_command",
                "response": {
                  "output": "Command: python3 summarize-ecsv.py ecsv_12_2025.csv\nDirectory: (root)\nOutput: Reading ecsv_12_2025.csv...\n\nBilling Summary by Linked Account:\n=====================================================================================\nAccount Name                        | Account ID      |   Total Cost |        Tax\n-------------------------------------------------------------------------------------\ndxw                                 | 396871851846    | $  34,434.97 | $ 5,739.12\ndxw-govpress                        | 666653442229    | $   5,293.91 | $   882.35\ndxw hosting - NHS England           | 661178850043    | $   3,401.83 | $   566.95\ndxw hosting - GDS                   | 841480728064    | $   2,954.81 | $   492.45\ndxw-judiciary-dalmatian             | 571543455290    | $   2,147.26 | $   357.94\ndxw-dalmatian-1                     | 52666621102     | $   1,345.96 | $   224.33\ndxw-nao-dalmatian                   | 984225123583    | $   1,272.44 | $   212.12\ndxw hosting - MTVH                  | 876401144910    | $   1,204.36 | $   200.71\ndxw-dhsc                            | 504027283968    | $     980.42 | $   163.42\ndxw - Dalmatian                     | 511700466171    | $     715.19 | $   119.20\ndxw-mtvhgp                          | 966086556319    | $     681.96 | $   113.67\ndxw-rwm                             | 302222309765    | $     563.11 | $    93.86\ndxw-fcdo                            | 799898416595    | $     560.92 | $    93.48\ndxw-stgeorges                       | 149524467025    | $     521.21 | $    86.84\nCID - Prod                          | 12755198934     | $     507.58 | $    84.56\ndxw-esht                            | 975049938928    | $     484.48 | $    80.73\nCID - Staging                       | 590183849451    | $     481.72 | $    80.32\ndxw-ons                             | 225709814079    | $     402.84 | $    67.14\ndxw-natcen                          | 429334471753    | $     338.72 | $    56.48\ndxw-bas                             | 419128131613    | $     338.41 | $    56.44\ndxw-essex                           | 891376962999    | $     265.22 | $    44.20\ndxw-dalmatian-v1-pentest            | 932446864135    | $     182.93 | $    30.48\nHelpful Transfer                    | 936938484656    | $     170.60 | $    28.43\ndxw-dfe-skills                      | 219661291364    | $      56.78 | $     9.45\ndxw - ash                           | 664883557209    | $      53.61 | $     8.92\ndxw - chris                         | 543586043228    | $      21.59 | $     3.60\ndxw-dfe-dalmatian                   | 129730198921    | $      15.33 | $     2.54\nstats-user-net                      | 572921893846    | $      10.73 | $     1.80\ndxw-dfe-fh                          | 42329559691     | $       6.30 | $     1.04\ndxw - lee                           | 580548153124    | $       5.57 | $     0.92\ndxw-beis-roda                       | 127426043703    | $       0.77 | $     0.13\ndxw-gld                             | 470396499948    | $       0.44 | $     0.06\ndxw-bob                             | 893439696758    | $       0.13 | $     0.02\nLambeth Docs                        | 220575105249    | $       0.00 | $     0.00\n-------------------------------------------------------------------------------------\nTOTAL                                                 | $  59,422.12\n=====================================================================================\n\nTop 5 Accounts - Service Breakdown:\n\nBreakdown for dxw (396871851846):\n  - Amazon Relational Database Service                : $  7,999.57\n  - Savings Plans for AWS Compute usage               : $  7,142.38\n  - Amazon CloudFront                                 : $  3,402.36\n  - Amazon Elastic Compute Cloud                      : $  2,939.28\n  - Amazon OpenSearch Service                         : $  1,341.18\n  - AWS WAF                                           : $  1,323.86\n  - Amazon Virtual Private Cloud                      : $  1,221.43\n  - AWS Support (Business)                            : $  1,168.12\n  - Elastic Load Balancing                            : $  1,162.10\n  - Amazon Elastic File System                        : $  1,142.53\n  ... and 30 more services\n\nBreakdown for dxw-govpress (666653442229):\n  - Amazon Relational Database Service                : $  1,502.19\n  - Amazon CloudFront                                 : $    966.56\n  - Amazon Elastic Compute Cloud                      : $    455.45\n  - AWS Data Transfer                                 : $    370.28\n  - Amazon EC2 Container Registry (ECR)               : $    320.70\n  - Amazon Elastic File System                        : $    312.91\n  - AmazonCloudWatch                                  : $    252.97\n  - AWS Key Management Service                        : $    212.17\n  - AWS WAF                                           : $    164.53\n  - Amazon ElastiCache                                : $    135.71\n  ... and 18 more services\n\nBreakdown for dxw hosting - NHS England (661178850043):\n  - Amazon Relational Database Service                : $  1,623.81\n  - Amazon CloudFront                                 : $    821.33\n  - AWS Support (Business)                            : $    309.26\n  - Amazon OpenSearch Service                         : $    216.41\n  - AWS WAF                                           : $    102.05\n  - Amazon Elastic Compute Cloud                      : $     98.95\n  - AWS Data Transfer                                 : $     58.47\n  - Elastic Load Balancing                            : $     34.59\n  - Amazon Virtual Private Cloud                      : $     31.35\n  - Amazon Elastic File System                        : $     29.11\n  ... and 17 more services\n\nBreakdown for dxw hosting - GDS (841480728064):\n  - Amazon CloudFront                                 : $  1,068.33\n  - Amazon Relational Database Service                : $    845.06\n  - Amazon Elastic Compute Cloud                      : $    193.44\n  - AWS Data Transfer                                 : $    186.48\n  - AWS WAF                                           : $    175.61\n  - Amazon Elastic File System                        : $    100.97\n  - AmazonCloudWatch                                  : $     77.21\n  - AWS Key Management Service                        : $     72.51\n  - Elastic Load Balancing                            : $     56.11\n  - Amazon Virtual Private Cloud                      : $     53.58\n  ... and 13 more services\n\nBreakdown for dxw-judiciary-dalmatian (571543455290):\n  - Amazon Relational Database Service                : $    764.89\n  - Amazon OpenSearch Service                         : $    447.87\n  - Amazon Elastic Compute Cloud                      : $    269.57\n  - Amazon CloudFront                                 : $    178.10\n  - Elastic Load Balancing                            : $     98.87\n  - AWS WAF                                           : $     94.94\n  - AWS Data Transfer                                 : $     75.10\n  - Amazon Virtual Private Cloud                      : $     71.45\n  - AmazonCloudWatch                                  : $     50.68\n  - Amazon Elastic File System                        : $     38.34\n  ... and 15 more services\nError: (none)\nExit Code: 0\nSignal: 0\nBackground PIDs: (none)\nProcess Group PGID: 97003"
                }
              }
            }
          ],
          "status": "success",
          "timestamp": "2026-01-28T16:54:11.597Z",
          "resultDisplay": "Reading ecsv_12_2025.csv...\n\nBilling Summary by Linked Account:\n=====================================================================================\nAccount Name                        | Account ID      |   Total Cost |        Tax\n-------------------------------------------------------------------------------------\ndxw                                 | 396871851846    | $  34,434.97 | $ 5,739.12\ndxw-govpress                        | 666653442229    | $   5,293.91 | $   882.35\ndxw hosting - NHS England           | 661178850043    | $   3,401.83 | $   566.95\ndxw hosting - GDS                   | 841480728064    | $   2,954.81 | $   492.45\ndxw-judiciary-dalmatian             | 571543455290    | $   2,147.26 | $   357.94\ndxw-dalmatian-1                     | 52666621102     | $   1,345.96 | $   224.33\ndxw-nao-dalmatian                   | 984225123583    | $   1,272.44 | $   212.12\ndxw hosting - MTVH                  | 876401144910    | $   1,204.36 | $   200.71\ndxw-dhsc                            | 504027283968    | $     980.42 | $   163.42\ndxw - Dalmatian                     | 511700466171    | $     715.19 | $   119.20\ndxw-mtvhgp                          | 966086556319    | $     681.96 | $   113.67\ndxw-rwm                             | 302222309765    | $     563.11 | $    93.86\ndxw-fcdo                            | 799898416595    | $     560.92 | $    93.48\ndxw-stgeorges                       | 149524467025    | $     521.21 | $    86.84\nCID - Prod                          | 12755198934     | $     507.58 | $    84.56\ndxw-esht                            | 975049938928    | $     484.48 | $    80.73\nCID - Staging                       | 590183849451    | $     481.72 | $    80.32\ndxw-ons                             | 225709814079    | $     402.84 | $    67.14\ndxw-natcen                          | 429334471753    | $     338.72 | $    56.48\ndxw-bas                             | 419128131613    | $     338.41 | $    56.44\ndxw-essex                           | 891376962999    | $     265.22 | $    44.20\ndxw-dalmatian-v1-pentest            | 932446864135    | $     182.93 | $    30.48\nHelpful Transfer                    | 936938484656    | $     170.60 | $    28.43\ndxw-dfe-skills                      | 219661291364    | $      56.78 | $     9.45\ndxw - ash                           | 664883557209    | $      53.61 | $     8.92\ndxw - chris                         | 543586043228    | $      21.59 | $     3.60\ndxw-dfe-dalmatian                   | 129730198921    | $      15.33 | $     2.54\nstats-user-net                      | 572921893846    | $      10.73 | $     1.80\ndxw-dfe-fh                          | 42329559691     | $       6.30 | $     1.04\ndxw - lee                           | 580548153124    | $       5.57 | $     0.92\ndxw-beis-roda                       | 127426043703    | $       0.77 | $     0.13\ndxw-gld                             | 470396499948    | $       0.44 | $     0.06\ndxw-bob                             | 893439696758    | $       0.13 | $     0.02\nLambeth Docs                        | 220575105249    | $       0.00 | $     0.00\n-------------------------------------------------------------------------------------\nTOTAL                                                 | $  59,422.12\n=====================================================================================\n\nTop 5 Accounts - Service Breakdown:\n\nBreakdown for dxw (396871851846):\n  - Amazon Relational Database Service                : $  7,999.57\n  - Savings Plans for AWS Compute usage               : $  7,142.38\n  - Amazon CloudFront                                 : $  3,402.36\n  - Amazon Elastic Compute Cloud                      : $  2,939.28\n  - Amazon OpenSearch Service                         : $  1,341.18\n  - AWS WAF                                           : $  1,323.86\n  - Amazon Virtual Private Cloud                      : $  1,221.43\n  - AWS Support (Business)                            : $  1,168.12\n  - Elastic Load Balancing                            : $  1,162.10\n  - Amazon Elastic File System                        : $  1,142.53\n  ... and 30 more services\n\nBreakdown for dxw-govpress (666653442229):\n  - Amazon Relational Database Service                : $  1,502.19\n  - Amazon CloudFront                                 : $    966.56\n  - Amazon Elastic Compute Cloud                      : $    455.45\n  - AWS Data Transfer                                 : $    370.28\n  - Amazon EC2 Container Registry (ECR)               : $    320.70\n  - Amazon Elastic File System                        : $    312.91\n  - AmazonCloudWatch                                  : $    252.97\n  - AWS Key Management Service                        : $    212.17\n  - AWS WAF                                           : $    164.53\n  - Amazon ElastiCache                                : $    135.71\n  ... and 18 more services\n\nBreakdown for dxw hosting - NHS England (661178850043):\n  - Amazon Relational Database Service                : $  1,623.81\n  - Amazon CloudFront                                 : $    821.33\n  - AWS Support (Business)                            : $    309.26\n  - Amazon OpenSearch Service                         : $    216.41\n  - AWS WAF                                           : $    102.05\n  - Amazon Elastic Compute Cloud                      : $     98.95\n  - AWS Data Transfer                                 : $     58.47\n  - Elastic Load Balancing                            : $     34.59\n  - Amazon Virtual Private Cloud                      : $     31.35\n  - Amazon Elastic File System                        : $     29.11\n  ... and 17 more services\n\nBreakdown for dxw hosting - GDS (841480728064):\n  - Amazon CloudFront                                 : $  1,068.33\n  - Amazon Relational Database Service                : $    845.06\n  - Amazon Elastic Compute Cloud                      : $    193.44\n  - AWS Data Transfer                                 : $    186.48\n  - AWS WAF                                           : $    175.61\n  - Amazon Elastic File System                        : $    100.97\n  - AmazonCloudWatch                                  : $     77.21\n  - AWS Key Management Service                        : $     72.51\n  - Elastic Load Balancing                            : $     56.11\n  - Amazon Virtual Private Cloud                      : $     53.58\n  ... and 13 more services\n\nBreakdown for dxw-judiciary-dalmatian (571543455290):\n  - Amazon Relational Database Service                : $    764.89\n  - Amazon OpenSearch Service                         : $    447.87\n  - Amazon Elastic Compute Cloud                      : $    269.57\n  - Amazon CloudFront                                 : $    178.10\n  - Elastic Load Balancing                            : $     98.87\n  - AWS WAF                                           : $     94.94\n  - AWS Data Transfer                                 : $     75.10\n  - Amazon Virtual Private Cloud                      : $     71.45\n  - AmazonCloudWatch                                  : $     50.68\n  - Amazon Elastic File System                        : $     38.34\n  ... and 15 more services",
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      "id": "4b33d0b6-7c42-4327-a554-9ab324228106",
      "timestamp": "2026-01-28T16:54:15.144Z",
      "type": "gemini",
      "content": "I have created the `summarize-ecsv.py` script, which summarizes your AWS billing data from `ecsv_12_2025.csv` by `LinkedAccountId`. Per your request, any costs without a `LinkedAccountId` (such as `PayerLineItem` records) are attributed to the payer account. The script provides a high-level summary table and a detailed service breakdown for the top 5 accounts.",
      "thoughts": [
        {
          "subject": "Reviewing the Results",
          "description": "I'm pleased to report that the figures are now significantly improved. The payer account `dxw ( 396871851846)` reflects a more accurate total, incorporating the previously unallocated `PayerLineItem` costs. I consider the task complete.",
          "timestamp": "2026-01-28T16:54:15.076Z"
        }
      ],
      "tokens": {
        "input": 43883,
        "output": 92,
        "cached": 39534,
        "thoughts": 60,
        "tool": 0,
        "total": 44035
      },
      "model": "gemini-3-flash-preview"
    }
  ],
  "summary": "Create script to summarize CSV by LinkedAccountId."
}