Ultracode, the feature you don't know you need

Claude Code introduces Ultracode, a keyword enabling a single prompt to deploy multiple parallel agents for reading and cross-checking material. By adding a coordinator session, one chat can manage projects ten sessions wide. Meanwhile, the FT-4 project aims to fine-tune Qwen3.5-9B using LoRA and GRPO for a personal assistant. Separately, READIT addresses the gap between owning and understanding AI-generated code, helping developers track complex behaviors across components like validation, inventory, and payment during pull requests.