Field notes

Blog

• 26 September 2026Ask your spreadsheets. Get a workbook back. No number made up.Kowalski 2.1 hands three chores to a horde of small AI agents: questions about your spreadsheets, a morning brief, and the paperwork in your inbox. The numbers come from a query engine, not from the AI.
• 26 September 2026Eighteen months of Kowalski: an architecture that kept getting smallerFrom a weekend Ollama wrapper to one binary that answers questions about your spreadsheets: eighteen months of diagrams, and why almost every good change removed something.
• 12 July 2025Beyond Chat History: Building Human-Like Memory for AI Agents in kowalski-coreWorking, episodic and semantic memory for agents in Rust, and why the stack ended up on SQLite.
• 5 July 2025Your Agent Is Only as Good as Its Tools: A Guide to Crafting High-Quality Instruments for AIAn agent is only as good as its tools: what makes a tool easy for a model to use correctly.