```markdown
# Gap Analysis: {feature name}

## Summary
- {scope}
- {key challenges}
- {recommended approach}

## Requirements-to-Assets Mapping
| Requirement ID | Technical Need | Existing Asset | Gap |
|----------------|---------------|----------------|-----|
| {ID} | {need} | {asset or none} | {Missing / Unknown / Constraint} |

## Implementation Approaches

### A: Extend Existing
- **Target**: {files/modules to extend}
- **Pros**: {advantages}
- **Cons**: {disadvantages}

### B: Build New
- **Target**: {components to build from scratch}
- **Pros**: {advantages}
- **Cons**: {disadvantages}

### C: Hybrid
- **Extend**: {parts to extend}
- **New**: {parts to build new}
- **Pros**: {advantages}
- **Cons**: {disadvantages}

## Effort & Risk
- **Effort**: {S/M/L/XL} -- {one-line rationale}
- **Risk**: {High/Medium/Low} -- {one-line rationale}

## Recommendations for Design Phase
- **Recommended Approach**: {A/B/C}
- **Items Requiring Investigation**: {topics needing further research}
```
