{"slug": "redesigning-agent-studio-around-ghostwriter", "title": "Redesigning Agent Studio around Ghostwriter", "summary": "Sierra redesigned its Agent Studio around Ghostwriter, its AI agent for building agents, so that investigating a problem, editing a journey, running simulations and testing a fix now happen in a single conversation rather than across separate tools. The redesign adds chat-style sessions that hold Ghostwriter's changes until a teammate reviews and merges them, lets teams fork or share sessions, and groups related agents into one project with shared data and channels; line-by-line diffs, Preview Chat and Simulations, and release governance with required approvals and controlled rollouts gate what reaches customers. Sierra said the shift follows agent building moving \"from code to clicks to prompts,\" with Ghostwriter combining capabilities previously spread across Explorer, Sierra Assistant and other specialized agents.", "body_md": "# Redesigning Agent Studio around Ghostwriter\n\nA year ago, almost every piece of code was written by engineers. Today, you’d be hard pressed to find a tech company that writes over five percent of its code by hand. Agent building is following the same path, from code to clicks to prompts.\n\n[Ghostwriter](https://sierra.ai/blog/agents-as-a-service) is our agent for building agents — an [always-on teammate](https://sierra.ai/blog/ghostwriter-ai-tool-to-teammate) that not only helps you build but also understands how agents are performing, suggests improvements in Slack and Teams, and pushes whatever you approve live.\n\nBut even the best teammates need a shared place to work — and that’s Agent Studio, where you can investigate problems, work on improvements, test changes, and decide what ships. Until today, that involved navigating between the different parts of Agent Studio needed to edit journeys, run simulations, and review performance.\n\nWe’ve now redesigned Agent Studio around Ghostwriter, so you can go from asking why resolution rates dropped to examining the conversations, updating a journey, and testing the fix — all in one conversation. The evidence, changes, and test results stay together for your team to review before anything goes live.\n\n## **Ghostwriter, wherever you are in Agent Studio**\n\nGhostwriter now stays with you as you move through Agent Studio, and it sees what you’re looking at — whether that’s a journey, a simulation, or a dashboard. When something looks off, you can ask about it or have Ghostwriter fix it on the spot, without stopping to explain the context. It combines what used to be spread across Explorer, Sierra Assistant, and other specialized agents, so you no longer need to know which tool does what.\n\n## **A session for each piece of work**\n\nSimilar to ChatGPT or Claude, each session works like a chat thread. It keeps your conversation with Ghostwriter together with the changes it makes. Changes stay in the session until someone reviews and merges them. That means you can investigate why more customers are asking to speak with a support associate in one session, and build a new journey in another, without the two interfering with each other.\n\nSessions also make teamwork easier. You can share a session to work through a problem together, or fork one to pick up where a colleague left off. Before anything merges, you can ask Ghostwriter to review a teammate’s changes.\n\n## **Build across multiple agents**\n\nMost customer journeys involve more than one agent. Agent Studio now brings related agents into a single project, along with the data and channels they share, so your team can test and release them together.\n\nTake a lender. One agent collects documents from applicants, while another manages the application and follows up until the loan closes. When the lender adds a new document requirement, Ghostwriter updates what the first agent asks for and how the second one follows up, all in one session.\n\n## **Make every change easy to review**\n\nAs Ghostwriter does more of the editing, reviewing its work becomes more important. Line-by-line comparisons show exactly what changed. Preview Chat and Simulations let you test behavior before you merge. [Release governance](https://sierra.ai/blog/release-governance-guardrails-for-agents-at-scale) adds required approvals and controlled rollouts, so nothing reaches customers until your team says so.\n\nThe best agents are never finished. Ghostwriter keeps finding ways to make yours better, and Agent Studio keeps your team in control of every change.", "url": "https://wpnews.pro/news/redesigning-agent-studio-around-ghostwriter", "canonical_source": "https://sierra.ai/blog/redesigning-agent-studio-around-ghostwriter", "published_at": "2026-11-02 19:37:48+00:00", "updated_at": "2026-11-02 20:50:54.215537+00:00", "lang": "en", "topics": ["ai-agents", "ai-products", "ai-tools", "generative-ai"], "entities": ["Sierra", "Ghostwriter", "Agent Studio", "Explorer", "Sierra Assistant", "Slack", "Microsoft Teams", "ChatGPT"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/redesigning-agent-studio-around-ghostwriter", "markdown": "https://wpnews.pro/news/redesigning-agent-studio-around-ghostwriter.md", "text": "https://wpnews.pro/news/redesigning-agent-studio-around-ghostwriter.txt", "jsonld": "https://wpnews.pro/news/redesigning-agent-studio-around-ghostwriter.jsonld"}}