Kowalski bloghttps://kowalski.yarenty.com/blog/ Notes from building kowalski: hordes of small AI agents that do real work on your machine. Ask your spreadsheets. Get a workbook back. No number made up.https://kowalski.yarenty.com/blog/ask-your-spreadsheets/https://kowalski.yarenty.com/blog/ask-your-spreadsheets/Sat, 26 Sep 2026 08:00:00 GMTKowalski 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. Eighteen months of Kowalski: an architecture that kept getting smallerhttps://kowalski.yarenty.com/blog/architecture-history/https://kowalski.yarenty.com/blog/architecture-history/Sat, 26 Sep 2026 08:00:00 GMTFrom 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. Beyond Chat History: Building Human-Like Memory for AI Agents in kowalski-corehttps://kowalski.yarenty.com/blog/agent-memory/https://kowalski.yarenty.com/blog/agent-memory/Sat, 12 Jul 2025 08:00:00 GMTWorking, episodic and semantic memory for agents in Rust, and why the stack ended up on SQLite. Your Agent Is Only as Good as Its Tools: A Guide to Crafting High-Quality Instruments for AIhttps://kowalski.yarenty.com/blog/agent-tools/https://kowalski.yarenty.com/blog/agent-tools/Sat, 05 Jul 2025 08:00:00 GMTAn agent is only as good as its tools: what makes a tool easy for a model to use correctly.