agent-sdk-skill

Use this skill when building Claude-powered agents in .NET, implementing tool use or function calling with the Anthropic C# SDK, creating agentic loops, engineering system prompts for agents, handling streaming responses, using extended thinking, managing conversation context and token budgets, designing agent architecture patterns (augmented LLM, prompt chaining, routing, parallelization, orchestrator-workers, evaluator-optimizer, autonomous agents), integrating MCP servers or Semantic Kernel, or working with the Anthropic SDK .NET patterns (AnthropicClient, IChatClient, UseFunctionInvocation, AIFunctionFactory). Invoke when: creating or configuring AnthropicClient, registering IChatClient in DI, defining tools with JSON Schema, handling tool_use/tool_result content blocks, building manual agentic loops, streaming with CreateStreaming or MessageContentAggregator, enabling extended thinking with ThinkingParameters, writing agent system prompts, implementing retry/error handling for Anthropic API, managing conversation history compaction, choosing between agent architecture patterns, connecting to MCP tool servers, or using multi-cloud (Bedrock/Foundry) deployments.