mixpanel-react-native/claude/optimization/copilot-impact-analysis-2025-05-30.md

Official React Native Tracking Library for Mixpanel Analytics

# Copilot Instructions Impact Analysis - 2025-05-30

## Current State
- Total instructions: 40+ distinct guidance items
- Total line count: 342 of ~500 recommended
- Sections: 11 major sections
- Available buffer: 158 lines

## Impact Scores

### High Impact (Score >75) - Must Keep
| Instruction | Prevention | Frequency | Clarity | Total | Current Lines |
|-------------|------------|-----------|---------|-------|---------------|
| Token-based operations | 5 | 5 | 5 | 125 | 10 |
| Input validation pattern | 5 | 5 | 5 | 125 | 12 |
| Error handling (storage) | 4 | 5 | 5 | 100 | 15 |
| Dual implementation routing | 5 | 4 | 5 | 100 | 14 |
| Native module patterns | 4 | 4 | 5 | 80 | 40 |
| Opt-out checking | 5 | 4 | 5 | 100 | 8 |
| Silent failure pattern | 4 | 5 | 4 | 80 | 20 |

### Medium Impact (Score 27-75) - Keep If Space
| Instruction | Prevention | Frequency | Clarity | Total | Current Lines |
|-------------|------------|-----------|---------|-------|---------------|
| Naming conventions | 2 | 5 | 5 | 50 | 25 |
| Queue-based processing | 3 | 4 | 4 | 48 | 14 |
| Factory functions | 3 | 3 | 5 | 45 | 10 |
| Testing both modes | 3 | 3 | 5 | 45 | 30 |
| Logging with context | 2 | 5 | 5 | 50 | 19 |
| Import organization | 1 | 5 | 5 | 25 | 11 |
| Immutable updates | 2 | 3 | 4 | 24 | 14 |

### Low Impact (Score <27) - Consider Removing
| Instruction | Prevention | Frequency | Clarity | Total | Current Lines |
|-------------|------------|-----------|---------|-------|---------------|
| File structure context | 1 | 2 | 5 | 10 | 11 |
| Key principles summary | 1 | 1 | 5 | 5 | 8 |
| Singleton pattern details | 2 | 2 | 4 | 16 | 12 |
| Private variable naming | 1 | 3 | 5 | 15 | 2 |

## Redundancy Analysis
- **Duplicate concepts**: Error handling appears in 3 sections
- **Redundant with Cursor rules**: Detailed naming conventions, import organization
- **Better in documentation**: File structure, key principles
- **Consolidation opportunities**: Platform-specific code examples

## Coverage Gaps
- **Conditional property inclusion**: Not covered (new pattern)
- **UUID generation fallback**: Not mentioned
- **Gzip compression**: New feature not documented

## Key Findings
1. **Over-explained patterns**: Many patterns have both explanation and example
2. **Platform code duplication**: iOS/Android/JS examples could be consolidated
3. **Low-impact verbosity**: File structure and principles add little behavioral value
4. **Missing critical patterns**: New patterns from recent updates not included