Ghostwriter

Product

Agent that creates and optimizes other Sierra agents and can work proactively alongside teams in Slack and Microsoft Teams.

Releases

Sep 28, 2026Ghostwriter expands to Slack and TeamsGhostwriterFeature update

Sierra expanded Ghostwriter into Slack and Microsoft Teams as an always-on, proactive and asynchronous teammate.

Mar 25, 2026Sierra introduces GhostwriterGhostwriter · GhostwriterProduct launch

Sierra introduced an agent that creates, executes and continuously improves other customer-experience agents from described outcomes.