Redesigning Agent Studio around Ghostwriter

Sierra has redesigned Agent Studio around Ghostwriter, its always-on agent for building agents, so users can investigate issues, edit journeys, run simulations, and test fixes within a single conversation. Ghostwriter now follows users through Agent Studio and sees what they are viewing, combining capabilities previously spread across Explorer, Sierra Assistant, and other specialized agents, with each piece of work kept in its own shareable or forkable session. The redesign also brings related agents into a single project, adds line-by-line change comparisons, Preview Chat and Simulations, and release governance with required approvals and controlled rollouts.