Chopin: A real-time multiplayer, agentic planning environment

Chopin is a research prototype that reframes software work around interactive, team-centered planning because coding agents have dramatically reduced the time spent on implementation. With agents handling syntax and routine code generation, the critical bottleneck is now upfront planning and downstream review; current agent plan modes (inspired by work like ReAct and products such as Claude Code) help, but existing tooling treats plans as static, single-player artifacts. Four core failures are identified: plans are non-interactive and hard to iterate on; planning tools are designed for lone users rather than teams; there’s no clear ownership or audit trail for decisions made by humans versus agents; and plans are overwhelmingly text-heavy when diagrams and visual maps would communicate complex architectures far more efficiently.

Chopin addresses those gaps by offering a real-time, multiplayer planning environment that embeds agents as collaborative teammates rather than solo copilots. It surfaces editable, branching plan threads so individual questions or design choices can be expanded, debated, and prototyped; it supports synchronous or asynchronous team collaboration with decision attribution and provenance; and it generates interactive visuals (data flows, UML, architecture maps) alongside text to reduce cognitive load. The stated goal is to make agent-driven planning genuinely co‑creative, auditable, and visually grounded so teams can make better, faster decisions before handing work off to implementation agents.