sqlite-utils 4.0rc2, mostly written by Claude Fable — Simon Willison used Claude Fable to fix

• Claude Fable identified a data-loss bug: delete_where() never commits, poisoning the connection so subsequent writes are lost. This would have been a major release blocker.
• After 37 prompts and 34 commits, the agent helped redesign transaction handling: every write method now auto-commits, and db.atomic() groups operations. This simplifies the API and prevents silent failures.
• A cross-model review (GPT-5.5 checking Claude's work) found two subtle issues: db.query() auto-committed writes before validating the statement, and INSERT ... RETURNING only committed after full iteration. This shows the value of adversarial review between models.

原文：sqlite-utils 4.0rc2, mostly written by Claude Fable (for about $149.25) · 作者 Simon Willison