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Changelog

All notable changes to the Claude Code SDK for .NET will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.0.20] - 2024-12-23

Added

Initial release of Claude Code SDK for .NET
Core SDK functionality translated from Python version
ClaudeQuery.QueryAsync() for one-shot queries
ClaudeSDKClient for interactive, bidirectional conversations
Full type system with strongly-typed messages and content blocks
Subprocess CLI transport implementation
Comprehensive error handling with custom exception types
Message parsing with JSON support
Support for all Claude Code options and tools
Examples demonstrating basic usage, streaming, and interactive scenarios
Unit tests for core functionality
Complete documentation and README

Features

Bidirectional Communication: Full support for interactive conversations
Tool Integration: Complete tool system with permission modes
Streaming Support: Real-time message streaming
Type Safety: Strongly-typed messages and content blocks
Error Handling: Comprehensive exception system
Async/Await: Full async support throughout the API
Cross-Platform: Compatible with all .NET 8.0+ platforms
Cancellation Support: CancellationToken support for all async operations

Supported Message Types

UserMessage - User input messages
AssistantMessage - Claude's responses with content blocks
SystemMessage - System-level messages
ResultMessage - Conversation results with cost and usage info

Supported Content Blocks

TextBlock - Plain text content
ThinkingBlock - Claude's reasoning process
ToolUseBlock - Tool execution requests
ToolResultBlock - Tool execution results

Configuration Options

System prompts and prompt appending
Tool allowlists and denylists
Permission modes (default, acceptEdits, plan, bypassPermissions)
Working directory and additional directories
MCP server configurations
Model selection and thinking token limits
Session management and conversation continuation