"""Port interfaces for engine-side integration boundaries."""

from core.ports.backend import (
    AssistantConfigProvider,
    BackendGateway,
    HistoryWriter,
    KnowledgeSearcher,
    ToolResourceResolver,
)

__all__ = [
    "AssistantConfigProvider",
    "BackendGateway",
    "HistoryWriter",
    "KnowledgeSearcher",
    "ToolResourceResolver",
]