Progress updates from the projects I'm building in the open. Finished projects can be found under Work.
Google Alerts for the Diário Oficial da União (DOU)
A monitoring service that watches Brazil's federal gazette (the DOU) and alerts professional-services firms when their clients or topics are mentioned.
Latest
The job that fired and never ran: why both of my alerts were structurally blind to itCross-turn regression testing for multi-turn, channel-native AI agents
Records a real agent conversation, its LLM and tool calls, into a deterministic fixture, then replays it to catch the cross-turn bugs per-turn tests miss.
Latest
The LLM judge that can't fail your build: an offline evaluator, advisory by defaultMulti-tenant school-management SaaS with tenant isolation enforced in the database
A B2B SaaS for schools: people, disciplines, terms, turmas, grades and attendance. A Django modular monolith with tenant isolation enforced by Postgres RLS.
Latest
All Greek to the embeddings: the RAG retrieval floor my own dogfood broke in 43 minutesA reproducible benchmark that puts numbers on browser-automation stealth
Scores browser-automation stealth configs against self-hosted bot detectors on your own localhost. It measures detectability only, and every detector runs offline.
View build log →A sprint conductor for Claude Code
Drives one sprint from a markdown backlog to a merged branch: a fresh context boundary at every stage, three human gates, and all authoritative state kept on disk.
Latest
A green scratch run is not a proof: 127 passing tests and the collision my AI plan called verifiedBuild-in-public updates and new posts, delivered as a digest. Double opt-in · no spam · unsubscribe anytime · handled by Buttondown.