Encode the state of the market.
Assets, sleeves, regimes, signals, and positions become typed objects with explicit ownership and relationships. Feeds can change without changing the contract consumers read.
Nexus Semantic Layer
Nexus
The typed decision graph connecting market evidence, portfolio state, governance, and execution.
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THE NEXUS PLATFORM
Shared context. Governed action.
DRAG TO TILT — CLICK A LAYER TO FOCUS
DOMAIN LANGUAGE
Define the objects behindevery governed decision.
Capture the logic of the strategy.
Strategy rules and constraints are versioned, sealed in signed bundles, and evaluated with purged walk-forward tests before activation.
Model the actions of the desk.
Orders, fills, and resulting position changes remain distinct but linked, so execution can be reconciled against the decision that authorized it.
Govern the human-agent council.
Each proposal from the configured council enters the same PASS, BLOCK, REVIEW gate. The evaluated constraint version and verdict stay attached to the decision record.
DECISION FABRIC
One versioned context.Components publish. Harbor governs.
ASSET
≡Properties
ƒxFunctions
▸Actions
⟳Automations
LINK
SIGNAL
≡Properties
ƒxFunctions
▸Actions
⟳Automations
LINK
REGIME
≡Properties
ƒxFunctions
▸Actions
⟳Automations
SLEEVE
≡Properties
ƒxFunctions
▸Actions
⟳Automations
LINK
◈
DECISIONCONTEXT
ONE FUSED GRAPH
LINK
RISK
≡Properties
ƒxFunctions
▸Actions
⟳Automations
CONSTRAINT
≡Properties
ƒxFunctions
▸Actions
⟳Automations
LINK
POSITION
≡Properties
ƒxFunctions
▸Actions
⟳Automations
LINK
TRADE
≡Properties
ƒxFunctions
▸Actions
⟳Automations
BROKER BRIDGE — ACTS
SEMANTIC TOPOLOGY
DecisionContext at the center.
DecisionContext gives every authorized component the same versioned view of assets, signals, regimes, constraints, positions, and trades. Select a primitive to inspect what it publishes and consumes.
DRAG TO TILT — CLICK A NODE TO INSPECT
WRITES INTO BUS
READS FROM BUS
TYPED LINK — ORBIT PAUSES ON HOVER
DOMAIN PRIMITIVES
Typed. Linked. Versioned.
Each primitive owns a distinct contract: what fields it carries, which component writes it, and which decisions may consume it.
PRIMITIVETYPEOWNSPRODUCED BY
SignalScoreComposite score, vote category, timeframe alignmentSignal Agent
AssetEntityTicker, sector, market cap, price, fundamentalsData Layer
SleeveGroupTicker list, thematic label, exposure capConfiguration
ConstraintRuleThreshold, scope, enforcement mode, versionRisk Agent
PositionStateTicker, size, cost basis, sleeve, entry contextExecution Agent
TradeEventOrder ID, fill price, slippage, chain contextExecution Agent
RiskAssessmentVerdict, violations, sizing, stress resultRisk Agent
RegimeStateClassification, confidence, module scoresMacro Agent
SEMANTIC PATTERNS
How primitives become decisions.
Nexus defines how domain objects combine: a Signal is interpreted inside a Regime, a Constraint becomes a Risk verdict, and a confirmed Trade becomes Position state.
LANGUAGE + TOOLING
How Nexus is implemented.
A typed read model, explicit graph relationships, and a layered communication protocol keep storage, reasoning, governance, and execution connected without collapsing them into one system.
PUBLIC LANGUAGE
Nexus is Harbor's decision fabric: the typed layer that lets data services, agents, risk controls, and execution tools exchange context without sharing implementation details.
ISOMETRIC FRAME
Layered runtime model
Follow one path from source records to application action. Isolate a layer to see where data, governance, Nexus, agents, and operator tools enter the decision lifecycle.
CLICK A LAYER TO ISOLATE