Building a software factory for AI SDK - Vercel
We built a software factory that autonomously processes issues and PRs for the AI SDK, with humans in control of every merge. Four weeks in, it authors 25-40% of merged PRs.
The AI SDK is one of the most popular open-source AI projects in the world. It serves over 20 million npm downloads a week and the repo has over 26,000 stars. Maintaining the codebase means tracking four moving targets at once: Model providers: new providers, new capabilities, and new bugs UI frameworks: bindings for React, Next.js, Svelte, Vue, and others Sandboxes: the execution environments agents run code in Harnesses: adapters for Codex, Claude Code, Pi, and others After multiple years of growth, the repo was getting 100+ new issues every month, and when Anthropic's Opus 4.6 model…
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