Match bank payments to open invoices
The request
The task request supplied to the adapter, alongside the workspace below. Runtime instructions, authorized tools and skills also affect the system. Containerized runs withhold host-side references; local mode is not an isolation boundary.
Match the payments in this morning's bank export to our open invoices. Give me unpaid.csv with the invoices still open (invoice_id, customer, amount_outstanding) and matches.csv showing what got applied where (invoice_id, line_id, amount_applied).
Workspace
- bank_export.csv
- note.txt
- open_invoices.csv
Expected deliverables
- unpaid.csv
This task also has a task-specific grader (check.py).
Recorded acceptance checks
The table uses check names and outcomes from the frozen campaign ledger. Acceptance requires all required predicates to pass; a predicate may itself contain a tolerance or coverage threshold. Its scope is part of the measurement contract.
| Recorded check | Type | Required | Failed / observed |
|---|---|---|---|
| unpaid.csv columns | csv_columns | yes | 0 / 6 |
| unpaid invoice ids | csv_set_equal | yes | 0 / 6 |
| amount outstanding per open invoice (partial remainder required) | csv_values_match | yes | 0 / 6 |
| matches.csv applies payments correctly | custom | yes | 0 / 6 |
Current task declaration (4 checks)
From task.yaml. Original runner grading and frozen retrospective scoring are separate. Read the frozen source for the rules behind the reported results.
- unpaid.csv columns —
csv_columns, required - unpaid invoice ids —
csv_set_equal, required - amount outstanding per open invoice (partial remainder required) —
csv_values_match, required - matches.csv applies payments correctly —
custom, required
Recorded results, desk release
| System | Repetitions | Frozen / 3 | Original / 3 | Median minutes | Mean model estimate (USD) |
|---|---|---|---|---|---|
| Proto / DeepSeek V4.1 Flash | 3 | 3 | 1.3 | 0.0187 | |
| Codex / GPT-5.6 sol | 3 | 3 | 2.2 | 0.1936 |
These are repeated executions on the released fixture, not independent new business cases. Cost is captured model usage priced under the recorded assumptions, excluding infrastructure and human review. Per-attempt check verdicts, raw and frozen verdicts, usage, receipt and artifact hashes for this task are in results/latest/attempts.jsonl under "task": "payments-match".
Recorded results, desk comparison, 28 September 2026
| System | Repetitions | Frozen / 3 | Original / 3 | Median minutes |
|---|---|---|---|---|
| Proto / GPT-6 sol | 3 | 3 | 1.6 | |
| Codex / GPT-6 sol | 3 | 3 | 1.5 | |
| Proto / DeepSeek V4.1 Flash | 3 | 3 | 1.1 |
A separate campaign under the same frozen scorer, not pooled with the release. Conditions and data.