Refactored runBuiltinLoop function to reduce cognitive complexity from 30 to below 15 by extracting helper functions:
- shouldInjectDeadlineWarning: checks if deadline warning should be shown
- shouldProcessToolCalls: determines if tool calls should be processed
- extractFinalText: extracts last assistant message content
- injectDeadlineWarning: injects deadline warning message
- handleTextOnlyTurn: handles text-only turn logic
- handleToolCallTurn: handles tool call turn logic
- processLoopIteration: processes a single loop iteration
Added 24 new unit tests for the extracted helper functions, bringing total test count to 41 (all passing). All existing behavior is preserved.
Fixes#444
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
xiaoju
f96d6eb7c4