System Architecture

Technical design and implementation details of the OpenSpine coordination infrastructure.

Core Design Principles

Modular Separation

Each layer operates independently with defined interfaces. Changes to one module do not cascade through the system.

Composability

Layers expose standardized APIs. External systems can integrate with specific layers without full-stack adoption.

State Isolation

Layer-specific state is encapsulated. Cross-layer communication occurs through event streams, not shared mutable state.

Backward Compatibility

API versioning ensures existing integrations continue functioning as the system evolves.

Layer Communication

Inter-layer communication follows a unidirectional data flow pattern:

1

Data Ingestion

Raw events enter through L1 (Identity Spine)

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2

State Sync

L2 (Coordination Engine) processes and normalizes

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3

Signal Extraction

L3 (Signal Index) aggregates patterns

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4

Weight Computation

L4 (Governance) calculates influence

Data Persistence

Each layer maintains its own persistence strategy optimized for its access patterns: