Schema Based Function Calling With Multi Provider Connector Abstraction

via “schema-based function calling with multi-provider connector abstraction”

Microsoft's SDK for integrating LLMs into apps — plugins, planners, and memory in C#/Python/Java.

Unique: Uses a reflection-based schema extraction pipeline that automatically converts native function signatures into provider-specific tool schemas at runtime, with a pluggable connector architecture (IChatCompletionService) that allows new providers to be added without modifying core orchestration logic. This differs from LangChain's tool_utils which require manual schema definition, and from Anthropic's SDK which is provider-locked.

Provides tighter provider abstraction than LangChain's BaseLLM + Tool pattern through explicit connector interfaces, and better multi-provider support than single-provider SDKs, though with slightly higher complexity and latency overhead from schema translation.