Catalin Ionescu personal blog
Building an AI agent inside a 7-year-old Rails monolith
We run a multi-tenant Rails application with sensitive data and layered authorization. In this post, I walk through how I added the first AI agent tool using RubyLLM, Pundit policies, and our existing Algolia search, without introducing a parallel system or loosening constraints.
- Points
- 109
- HN comments
- 53
- Submissions
- 1
- Cited by
- 0 commenters
AI & Machine LearningSoftware Engineering2025
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Dec 26, 2025 | Building an AI agent inside a 7-year-old Rails monolith by cionescu1 | 109 | 53 |
