Mock process implementation that returns predefined responses instead of spawning a CLI.

This module serves as a drop-in replacement for ClaudeCodeSDK.Process when the mock system is enabled. Instead of spawning actual Claude CLI processes, it retrieves predefined responses from the ClaudeCodeSDK.Mock server and converts them into a stream of Message structs.

Behavior

• Prompt extraction: Intelligently extracts the relevant prompt from CLI arguments
• Response retrieval: Fetches appropriate mock responses from the Mock server
• Stream conversion: Converts raw mock data into proper Message structs
• Type preservation: Maintains the same message types and structure as real CLI output

Message Types Supported

• :system - System initialization and status messages
• :assistant - AI assistant responses with content
• :user - User input messages (for conversation context)
• :result - Final results with cost and performance metrics

Integration

This module is automatically used when Application.get_env(:claude_code_sdk, :use_mock, false) returns true. The main SDK seamlessly switches between real and mock processing without requiring code changes in client applications.

Mock Response Format

Raw mock responses are converted to structured Message structs following the same patterns as the real CLI output, ensuring compatibility across mock and live modes.