offscript

What it does

OFFSCRIPT is a local-first, multi-agent platform for exploring software through artificial user perspectives. Developers configure an application, a goal, and behavioral profiles—such as an Explorer, an Impatient user, or a Beginner—through a local CLI and Studio. Agents interact with web applications and their backends, record observations and visual evidence, and investigate unexpected behavior, helping developers understand the user journeys that scripted tests can miss. <<Your users don’t follow a script. Neither do ours>>

How the agents run concurrently

Mozaik coordinates agents within a shared simulation runtime, allowing independent inference and tool-use turns to run concurrently. Each agent maintains its own identity, memory, and tool context; browser interactions use a separate Playwright context per user. Agents share simulation-scoped observations and investigations. Typed semantic events and Mozaik’s reactive situation handlers connect their work: when an agent requests an investigation, another agent can react, record its assignment, and contribute additional observations. This lets users pursue separate interactions while collaborating around discoveries, with every contribution attributed to its author.