field notes · talks · releases · experiments

field notes,
without the feed.

Durable context from the systems lab: what was built, what changed, what failed, and which decisions were worth carrying into the next system.

latest entries

The archive starts with public workshops and releases. Build notes, retrospectives, and deeper technical writing come next.

Agent, MCP and RAG architecture from the 2025 workshop
AI Summit · Joinville

Do Prompt ao Protocolo: construindo agentes com MCP, RAG e IA aplicada

A hands-on workshop moving from prompts to tool-using agents, retrieval, MCP services, collaborative patterns, and an executable Docker-based reference architecture.

Title slide for the 2024 resilient data extractors workshop
1st AI Summit · Joinville

Construindo extratores de dados resilientes* * mas não invencíveis! 😄

Why web extraction breaks, how LLMs can help interpret changing pages, and where deterministic validation still has to own the result.

BigQuery Cost Estimator published extension
release note

BigQuery costs, visible before the query runs

The browser tool is published in the Chrome Web Store: multilingual, local-first, and explicit about what never leaves the browser.