sqlite-utils 4.0rc2, a release candidate for the popular SQLite database utility, has been released. The majority of the code changes in this release were written by Anthropic's Claude Fable AI model, costing approximately $149.25. This release demonstrates the growing capability of AI-assisted software development, as Claude Fable identified and fixed critical bugs like a data loss bug in delete_where() that would have otherwise shipped. It shows that AI can not only write code but also perform code review that catches subtle, high-impact issues. The AI assistant conducted a review of the 4.0rc1 release and identified 5 release-blocking issues, including a severe data loss bug. Over 37 prompts, 34 commits, and +1321/-190 code changes across 30 files, the team worked through all feedback, with the AI generating most of the code and fixes.
Background
sqlite-utils is a Python library and CLI tool for manipulating SQLite databases, widely used in the Datasette ecosystem. Claude Fable 5 is Anthropic's latest state-of-the-art AI model, known for its exceptional coding and reasoning capabilities. The cost estimate of $149.25 reflects the API usage for the AI to produce the code changes.