Recorded sample run: spreadsheet cleanup

13 October 2026 · local Codex agent · GPT-6.1 Sol

Actual trial with synthetic input. No external sending or publication occurred.

How this was run

The receiver used only this instruction and the synthetic input pack for this task. It had previously executed a different weekly-update task, but received no spreadsheet answer or designed example. A separate validation parsed the resulting CSV and compared every original cell and row order.

What we observed

• All 14 source rows and their original values were retained in order.
• Leading-zero IDs survived in the CSV; ambiguous values were preserved.
• Seven exception rows were identified; no duplicate or conflict was silently removed.
• Scoped totals were USD 1,375.49 and EUR 420.00 over the stated eligible rows.

What this does not establish

Spreadsheet-app import behavior, real accounting accuracy, other providers, shared storage, live-system writes and long-run reliability were not tested.

Inspect the exact files

• Task instruction
• Synthetic input pack
• cleaned.csv
• exceptions.csv
• reconciliation.md
• Run record as Markdown