> ## Documentation Index
> Fetch the complete documentation index at: https://docs.spineworkspace.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Spine Agent Network: Internal Architecture

> Internal notes on the Spine Agent Network topology: personal Twins, core agents, domain agents, and the coordination and continuity guarantees between them.

Internal architecture note for the Spine Agent Network. Product-level view is at [Spine Agent Network](/agents/spine-agent-network).

## Topology

* **Twin** — one per person, personal operator.
* **Core Agents** — shared across the workspace.
* **Domain Agents** — one set per domain projection.

All operate over the shared Spine and communicate through capabilities and handoffs, never direct memory sharing.

## Guarantees

* Every actor runs under a declared identity.
* Every action is authorized, scoped, and receipted.
* Every handoff carries assembled context and history.

## Related

* [Network Effect](/internal-docs/agents/network-effect)
* [Twin](/internal-docs/agents/twin)
* [Workflows](/internal-docs/agents/workflows)


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