## QA PASSED ✅ **Verification Date:** 2026-01-01 **Test Results:** - All 28 unit tests pass (100% success rate) - Test execution time: 20ms - Zero test failures **Acceptance Criteria:** - ✅ Function signature matches specification exactly - ✅ Handles partial/incomplete think tags during streaming - ✅ Handles multiple think blocks with concatenation (double newlines) - ✅ Strips all think tags from answer content - ✅ Comprehensive unit tests covering all edge cases **Code Quality:** - Pure function with no side effects - Proper TypeScript types and exports - Excellent documentation and comments - Handles unicode, emoji, very long content, and nested HTML/markdown **Files Verified:** - src/src/utils/parseThinkingContent.ts (80 lines) - src/src/utils/parseThinkingContent.test.ts (361 lines, 28 tests) - src/src/utils/index.ts (barrel export) **Conclusion:** Implementation is production-ready. All requirements met, no issues found. Full QA report: /tmp/qa-PPLX-96.md

## Implementation Complete **What was implemented:** - Created `parseThinkingContent()` utility function in `src/src/utils/parseThinkingContent.ts` - Function signature: `parseThinkingContent(content: string) => { thinking: string | null, answer: string, isThinkingComplete: boolean }` **Features:** - Parses `<think>...</think>` tags from content strings - Handles incomplete tags during streaming (detects unclosed `<think>` at end) - Concatenates multiple think blocks with double newlines - Strips think tags from answer content, preserving word spacing - Case-sensitive matching (only lowercase `<think>` tags) **Files created:** - `src/src/utils/parseThinkingContent.ts` - Main implementation - `src/src/utils/parseThinkingContent.test.ts` - 28 comprehensive tests - `src/src/utils/index.ts` - Barrel export **Test coverage (28 tests):** - No think tags (3 tests) - Complete think tag (4 tests) - Incomplete/streaming think tag (4 tests) - Multiple think blocks (3 tests) - Nested content within think tags (4 tests) - Empty think tags (3 tests) - Edge cases (6 tests) - Streaming simulation (1 test) **Verification:** All 28 tests pass. **Commit:** 39ad7f0 - Merged to main and pushed to origin.

## Feature Triage Complete **Status:** NOT IMPLEMENTED **Summary:** This feature request is for a pure TypeScript utility function to parse `<think>...</think>` tags from streaming AI content. The ThinkingSection UI component already exists and is ready to display parsed content - this utility is needed to extract the thinking content from raw streaming responses. **Implementation Location:** - New file: `src/src/utils/parseThinkingContent.ts` - New file: `src/src/utils/parseThinkingContent.test.ts` - New file: `src/src/utils/index.ts` (barrel export) **Approach:** Regex-based parsing with streaming state detection. No external dependencies needed. **Complexity:** Low - Pure function, ~50-100 lines of code including tests. See attached triage report for full details including edge cases, test strategy, and implementation approach.