You Can't Vibe-Code an AI Agent: Loop Engineering in FermixFermix was not built in one prompt. It was built as loops: a design doc per milestone, a failing test first, unit tests for the mechanics, and an eval suite that grades the real model on real queries off an Opik trace.July 5, 2026aiai-agentselixirfermixevals
Scaling Fermix Agent Tools Without Bloating the Context WindowHow Fermix keeps plugin and MCP tool names visible while deferring their schemas out of the prompt: smaller prompts, a stabler cache, and clearer tool choice as the catalog grows.June 30, 2026aiai-agentselixirfermixmcp
Fermix: the personal AI agent I rebuilt in ElixirWhy I rebuilt my personal AI agent as a local Elixir daemon with supervised workers, plugins, memory, model routing, evals, and bounded computer use.June 22, 2026aiai-agentselixirfermix
Elixir Might Be the Best Language for AI AgentsThe BEAM VM solved agent orchestration problems in 1986. The AI world is just now catching up.March 5, 2026aiai-agentselixir