Louisa
Creator
Open-Source Developer Tools · 2026
Built Louisa, an open-source AI workflow that automatically generates polished release notes for GitHub and GitLab repositories — eliminating manual changelog writing by using Claude to enrich PRs at merge time and synthesize user-facing release notes on tag push.
Technology Partners
Challenge
Engineering teams waste hours every release cycle on changelog maintenance — pulling from vague PR titles, inconsistent commit messages, and half-written descriptions to produce something readable for users. The gap between raw commits and user-facing release notes was a consistent pain point across Arthur's own repositories.
Solution
Built Louisa as a Node.js workflow running on Vercel and GitHub Actions. Claude Haiku enriches each PR at merge time, rewriting descriptions with structured context — problem, solution, and user impact. On tag push, Claude Opus synthesizes those pre-computed summaries into polished, grouped release notes organized by product area. Instrumented end-to-end with OpenTelemetry and Arthur Engine for full observability into AI execution.
Impact
- —Shipped open-source release notes automation supporting both GitHub and GitLab
- —Implemented two-model strategy: Haiku for fast per-PR enrichment, Opus for final synthesis
- —Built-in OpenTelemetry + Arthur Engine tracing for observability into every AI call
- —Zero manual steps — push a tag, release notes appear automatically
- —Optional monthly pipelines for automated blog post drafting and changelog publishing
Results
- —Published as open-source under the arthur-ai org on GitHub
- —Became a reference implementation for AI workflow design vs. autonomous agent design
- —Featured in Arthur AI blog on building production-ready AI systems
- —Demonstrated observability-first approach to shipping AI in the real world