What is Twin?
Twin — A live digital model kept in sync with a real system, giving an agent a faithful counterpart to observe and act on.
Twin is the primitive that answers what is the live state of the real thing? A digital twin gives an agent a faithful, current model to reason against instead of the raw system.
It is the layer where simulation meets operation. The twin lets an agent test a change, predict an outcome, and act with a model that tracks reality as it moves.
Where twin sits in the stack
In the four-layer architecture of the agentic web, twin is a Cross-cutting concept — it applies across every layer of the stack. See the thesis for how the layers compound.
Twin in the portfolio
40 positions in the Semantic Substrate portfolio carry the Twin primitive — 35 available individually, 5 held as a coordinated set. Explore the Twin cluster →
Quick answers
- What is Twin in agentic systems?
- A live digital model kept in sync with a real system, giving an agent a faithful counterpart to observe and act on.
- Where does Twin sit in the agentic stack?
- Twin sits at the Cross-cutting layer — it applies across every layer of the stack.
- How many Twin domain positions exist in the Semantic Substrate portfolio?
- 40 positions carry the Twin primitive — 35 available individually, the rest held as a coordinated set.