The substrate for a four-stack company.
What it is
Skald OS is a runtime for organisations that run humans, agents, and a shared graph as equal Principals. The graph is the source of truth. The contract is the source of authority. The operator stays in the room.
Other systems bolt agents onto SaaS perimeters and call it integration. Skald inverts that posture: the substrate enforces tenancy, authorization, and audit at the chokepoint, and every actor — human or agent — passes through the same gate.
For whom
For teams building serious agent-shaped products on top of regulated or knowledge-dense work. Compliance is a first-class concern; the graph is not a screen-scraping cache; and the chain of custody for any action is retrievable.
Four surfaces
Hall
The shared room. Operators, agents, and the graph meet on one surface; conversation, surprise, and supervision live together.
Mind
The reasoning surface. Lenses over the graph, classifications, and the traces that show how a conclusion was reached.
Forge
The agent-builder. Compose agents from primitives, route their model calls through Shield, and ship them as first-class Principals.
Kernel
The substrate. Tenancy, authorization, the graph, audit, and the outbox — Postgres-leaning, code-first, deliberately small.