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taroguru and others added 14 commits October 3, 2025 16:55
🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
## Testing
- Added 56 comprehensive tests across 3 test files
  - test_search_tools.py: 25 tests for CourseSearchTool.execute()
  - test_ai_generator.py: 13 tests for AI tool calling mechanism
  - test_rag_integration.py: 18 tests for end-to-end integration
- Created test infrastructure with fixtures in conftest.py
- Added comprehensive test documentation (README.md, test analysis, fixes)

## Critical Fixes

### 1. Fixed chunk context inconsistency (document_processor.py)
- **Issue**: Different context formats between regular and last lesson chunks
- **Impact**: Inconsistent semantic embeddings, unpredictable search behavior
- **Fix**: Standardized all chunks to use "Course {title} Lesson {n} content: {chunk}"
- **Tests**: test_chunk_context_consistency, test_semantic_search_relevance

### 2. Removed one-tool-call limitation (ai_generator.py)
- **Issue**: System prompt restricted AI to single tool call per query
- **Impact**: Limited comprehensive answers, couldn't compare across courses
- **Fix**: Changed to "Use tools judiciously; may use multiple tools if necessary"
- **Tests**: test_multiple_tool_calls_in_sequence, test_query_content_question

### 3. Added tool usage logging (ai_generator.py)
- **Issue**: No visibility into when tools were used vs general knowledge
- **Impact**: Impossible to debug or monitor AI decision-making
- **Fix**: Added logging to track [TOOL USE] vs [NO TOOL] for each query
- **Benefits**: Better debugging, monitoring, and optimization capability

## Documentation
- TESTING_SUMMARY.md: Executive summary of testing and improvements
- backend/tests/README.md: Test suite guide and usage instructions
- backend/tests/TEST_RESULTS_AND_FINDINGS.md: Detailed analysis and issues
- backend/tests/FIXES_APPLIED.md: Comprehensive fix documentation

## Impact
- More consistent and predictable search behavior
- More capable AI responses with multi-tool calling
- Better observability and debugging capability
- Foundation for continuous quality validation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
Implemented a complete theme toggle system with the following features:
- Toggle button in header with sun/moon icons
- Light and dark theme CSS variables
- Smooth transitions between themes
- Theme persistence using localStorage
- Full keyboard accessibility with ARIA labels
- WCAG AA compliant color contrast

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Added git and file read permissions to settings.local.json
- Added implement-feature slash command

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Added pytest configuration in pyproject.toml with test markers, filters, and clean output settings
- Enhanced conftest.py with API testing fixtures including mock RAG system and FastAPI test client
- Created test_api_endpoints.py with 24 tests covering all API endpoints:
  - /api/query endpoint testing (9 tests)
  - /api/courses endpoint testing (5 tests)
  - Session management across requests (2 tests)
  - Error handling and validation (7 tests)
  - Response schema compliance (3 tests)
- Test client avoids static file mounting issues by creating clean test app
- Added pytest and httpx as dev dependencies
- All 24 new API tests passing

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
Set up professional code quality infrastructure with Black, isort, Flake8,
MyPy, and pre-commit hooks. All Python files have been automatically formatted
for consistency.

Changes:
- Add Black (v25.9.0) for automatic code formatting (88 char line length)
- Add isort (v6.1.0) for import organization (Black-compatible)
- Add Flake8 (v7.3.0) for PEP 8 style enforcement
- Add MyPy (v1.18.2) for static type checking
- Add pre-commit (v4.3.0) with automated git hooks

Configuration:
- pyproject.toml: Black, isort, and MyPy settings
- .flake8: Linting rules and exclusions (relaxed for gradual adoption)
- .pre-commit-config.yaml: Pre-commit hooks for formatting only

Development Scripts:
- scripts/format.sh: Auto-format with Black and isort
- scripts/lint.sh: Run Flake8 and MyPy checks
- scripts/quality-check.sh: Run all quality checks

Documentation:
- Updated CLAUDE.md with code quality tools section
- Added CODE_QUALITY.md with comprehensive tooling guide
- Added scripts/README.md for development scripts

Formatting:
- Formatted all 17 Python files with Black
- Organized imports in all files with isort
- Pre-commit hooks configured to auto-format on commit

Note: Flake8 and MyPy are available via scripts but not enforced
in pre-commit hooks to allow for incremental quality improvements.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
Integrate comprehensive code quality tooling from quality_feature branch.

Merged changes:
- Code quality tools: Black, isort, Flake8, MyPy, pre-commit
- Development scripts for formatting and linting
- Configuration files for all quality tools
- Formatted all Python files with Black and isort
- Combined dev dependencies from both branches (pytest + quality tools)
- Combined permissions from both branches

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
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