onisin OS Documentation

onisin OS (OOS) is an AI-first enterprise data system. You describe your data model in small declarative DSL files. From those files, OOS generates a live GraphQL schema, renders a desktop UI, and gives an AI assistant everything it needs to answer questions and edit records in natural language — all without touching a database directly.

The mental model

A domain is the source of truth for one entity — say, person. It describes fields, types, permissions, relations and AI hints. A view describes how that domain is displayed: toolbar buttons, column layout, form widgets. Everything is derived from these two files.

When a domain changes, the whole stack reacts automatically:

• oosgql rebuilds the GraphQL schema.
• oosai re-embeds the domain chunk for AI retrieval.
• The running UI picks up the change without a restart.

Where to go from here

• How it works — architecture and data flow.
• Components — each service explained.
• The DSL — writing .domain and .view files.
• The AI assistant — how the LLM is wired in.
• The event system — event types, streams and mappings.
• Running OOS — setup and startup order.
• Security and roles — permissions.
• Glossary — terms used throughout the docs.
• License — BSL 1.1.