Roblox rolled out a Planning Mode for its AI Assistant that breaks down development into editable action plans, asks clarifying questions, and integrates directly with code and data models. It also unveiled Mesh Generation and Procedural Model Generation to speed up asset creation, plus automated playtesting to catch and fix bugs. These updates aim to turn prompts into multi-step workflows for planning, building, and testing games.

• Roblox's new Planning Mode turns a single prompt into an editable, multi-step action plan by reading existing code/data and asking clarifying questions before building.
• Mesh Generation and Procedural Model Generation let creators produce fully textured, scriptable 3D assets (e.g., adjustable bookcases or stairs) instead of manual placeholders.
• Built-in automated playtesting logs output, takes screenshots, simulates inputs, and lets Assistant self-correct by looping fixes back into the plan.
• Roblox is adding support for parallel cloud-based AI agents and plans to integrate third-party tools like Claude, Codex, and Cursor directly into Studio.