Bands

Cost-free mode for Claude Code. Helper subagents (Explore and friends) run on Haiku, and a summarize_free tool lets Claude hand big files and logs to a free Gemini model instead of reading them whole. /frugal on, off, status. Needs function hooks (early access).

Learn while Claude codes. After a turn that changed code, a quick question about that exact change appears above the prompt; answer with /a 1-4, see your weak spots with /teach stats. Needs function hooks (early access).