How it works: Create a session with a purpose—Claude adapts and stays in that mode. Brainstorming explores ideas (no code). Development makes clean, pattern-following changes. Code Review finds bugs and risks. PR Review checks full diffs. Debugging: reproduce → verify → fix. Run modes in parallel on the same project—isolated, no conflicts. Includes usage limits, terminal, quick switching, project grouping. 7MB, Rust + Tauri, signed, auto-updates.