Japanese version: Index

provider Interfaces

1. Responsibility Boundary

Provider is the runtime boundary for external LLM/Embedding/RAG systems. Paths selected by routing are executed through IProvider/IModelProvider families, while cost, usage, health, query-processing support, and embedding metadata are exposed via IProvider* contracts.

2. Related Use Cases

• UC-03 Model Vector Routing
• UC-19 Multi-model Parallel Inference
• UC-22 Dynamic Capacity Control
• UC-23 AI Credit Governance
• Phase 1 Query Processing

3. Related Specs

• docs/specs/04.MODEL_ROUTING_SPEC.md
• docs/specs/06.REPLAY_DUMP_SPEC.md
• docs/specs/01.EXECUTION_PIPELINE_SPEC.md
• docs/architecture/17.QUERY_PROCESSING_PHASE1.md

Documents

• IProvider (Interface Specification)
• IModelProvider (Interface Specification)
• IModelMessage (Interface Specification)
• IEmbeddingProvider (Interface Specification)
• IRagProvider (Interface Specification)
• IEventBus (Interface Specification)
• IScheduler (Interface Specification)
• IProviderCapabilities (Interface Specification)
• IProviderCostProfile (Interface Specification)
• IProviderCreditInfo (Interface Specification)
• IProviderBillingInfo (Interface Specification)
• IProviderUsageStats (Usage Telemetry Interface Specification)
• IProviderResourceProfile (Unified Resource Profile Specification)
• IProviderRouter

Changelog

• v0.0.0 / v0.0.0.0: Initial draft
• v0.0.1 (2026-05-06): Added Router/Capacity boundaries and observability notes
• v0.0.1 (2026-05-09): Added query-processing capability boundary