Grok 4.6 on Reconcile a trapped quarter ledger

Passed in 50s. Attempt 1. Run 20260904T131332Z-grok-4-6-ledger-reconcile-trap-1.

Task

Reconcile the quarter ledger

Read invoices.csv, processor_payouts.csv, bank.csv, and rates.csv. Write report.json:

{
  "unpaid_invoice_ids": ["INV-1001"],
  "unreconciled_total_usd": 1234.56,
  "duplicate_invoice_ids": ["INV-1002"],
  "eur_invoice_ids": ["INV-1003"]
}

An issued invoice is unpaid when its successful charge rows total less than its invoice amount in that currency. Do not count fee or refund rows as payment. Exclude invoices marked refunded and any duplicated invoice id from the unpaid list because its canonical amount is unknown. A duplicate means the same invoice id appears more than once, even when amounts differ.

For reconciliation, convert every processor row to USD at the supplied currency rate, then sum by payout_id. Compare that expected total with the sum of bank rows whose kind is processor_deposit and has the same payout id. Ignore other bank activity. The unreconciled total is the sum of each payout id's absolute expected-versus-observed difference across the union of processor and bank payout ids, rounded to cents only at the end.

List every invoice whose invoice currency is EUR. Sort all id lists.

Command

grok -m grok-4.6 --output-format plain --always-approve -p 'You are working in the current folder. Do the task in TASK.md and write the outputs to the exact paths it names.
Do not ask questions. When done, stop.

# Reconcile the quarter ledger

Read `invoices.csv`, `processor_payouts.csv`, `bank.csv`, and `rates.csv`. Write `report.json`:

` ` `json
{
  "unpaid_invoice_ids": ["INV-1001"],
  "unreconciled_total_usd": 1234.56,
  "duplicate_invoice_ids": ["INV-1002"],
  "eur_invoice_ids": ["INV-1003"]
}
` ` `

An issued invoice is unpaid when its successful `charge` rows total less than its invoice amount
in that currency. Do not count `fee` or `refund` rows as payment. Exclude invoices marked
`refunded` and any duplicated invoice id from the unpaid list because its canonical amount is
unknown. A duplicate means the same invoice id appears more than once, even when amounts differ.

For reconciliation, convert every processor row to USD at the supplied currency rate, then sum
by `payout_id`. Compare that expected total with the sum of bank rows whose `kind` is
`processor_deposit` and has the same payout id. Ignore other bank activity. The unreconciled
total is the sum of each payout id'"'"'s absolute expected-versus-observed difference across the
union of processor and bank payout ids, rounded to cents only at the end.

List every invoice whose invoice currency is EUR. Sort all id lists.'

Output

I'll start by reading the task file and the ledger CSVs so I can write `report.json` exactly as specified.I'll compute unpaid invoices, duplicates, EUR ids, and the unreconciled payout total from the CSVs, then write `report.json`.Wrote `report.json`.

Unpaid invoices are INV-1017, INV-1064, and INV-1088.

The unreconciled total is 868.75 USD.

The only duplicate is INV-1042.

EUR invoices are INV-1033 and INV-1099.

Files produced

report.json

{
  "unpaid_invoice_ids": ["INV-1017", "INV-1064", "INV-1088"],
  "unreconciled_total_usd": 868.75,
  "duplicate_invoice_ids": ["INV-1042"],
  "eur_invoice_ids": ["INV-1033", "INV-1099"]
}

Checker

{"passed": true, "score": 1.0, "notes": "all four fields exact"}

Judge

Not used for this task.

Reconcile the quarter ledger

Read invoices.csv, processor_payouts.csv, bank.csv, and rates.csv. Write report.json:

{ "unpaid_invoice_ids": ["INV-1001"], "unreconciled_total_usd": 1234.56, "duplicate_invoice_ids": ["INV-1002"], "eur_invoice_ids": ["INV-1003"] }

List every invoice whose invoice currency is EUR. Sort all id lists.

Command

grok -m grok-4.6 --output-format plain --always-approve -p 'You are working in the current folder. Do the task in TASK.md and write the outputs to the exact paths it names. Do not ask questions. When done, stop. # Reconcile the quarter ledger Read `invoices.csv`, `processor_payouts.csv`, `bank.csv`, and `rates.csv`. Write `report.json`: ` ` `json { "unpaid_invoice_ids": ["INV-1001"], "unreconciled_total_usd": 1234.56, "duplicate_invoice_ids": ["INV-1002"], "eur_invoice_ids": ["INV-1003"] } ` ` ` An issued invoice is unpaid when its successful `charge` rows total less than its invoice amount in that currency. Do not count `fee` or `refund` rows as payment. Exclude invoices marked `refunded` and any duplicated invoice id from the unpaid list because its canonical amount is unknown. A duplicate means the same invoice id appears more than once, even when amounts differ. For reconciliation, convert every processor row to USD at the supplied currency rate, then sum by `payout_id`. Compare that expected total with the sum of bank rows whose `kind` is `processor_deposit` and has the same payout id. Ignore other bank activity. The unreconciled total is the sum of each payout id'"'"'s absolute expected-versus-observed difference across the union of processor and bank payout ids, rounded to cents only at the end. List every invoice whose invoice currency is EUR. Sort all id lists.'

Output

I'll start by reading the task file and the ledger CSVs so I can write `report.json` exactly as specified.I'll compute unpaid invoices, duplicates, EUR ids, and the unreconciled payout total from the CSVs, then write `report.json`.Wrote `report.json`. Unpaid invoices are INV-1017, INV-1064, and INV-1088. The unreconciled total is 868.75 USD. The only duplicate is INV-1042. EUR invoices are INV-1033 and INV-1099.