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103 lines
2.1 KiB
Markdown
103 lines
2.1 KiB
Markdown
---
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description: Remove dead code and consolidate duplicates
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agent: refactor-cleaner
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subtask: true
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---
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# Refactor Clean Command
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Analyze and clean up the codebase: $ARGUMENTS
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## Your Task
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1. **Detect dead code** using analysis tools
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2. **Identify duplicates** and consolidation opportunities
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3. **Safely remove** unused code with documentation
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4. **Verify** no functionality broken
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## Detection Phase
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### Run Analysis Tools
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```bash
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# Find unused exports
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npx knip
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# Find unused dependencies
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npx depcheck
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# Find unused TypeScript exports
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npx ts-prune
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```
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### Manual Checks
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- Unused functions (no callers)
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- Unused variables
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- Unused imports
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- Commented-out code
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- Unreachable code
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- Unused CSS classes
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## Removal Phase
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### Before Removing
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1. **Search for usage** - grep, find references
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2. **Check exports** - might be used externally
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3. **Verify tests** - no test depends on it
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4. **Document removal** - git commit message
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### Safe Removal Order
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1. Remove unused imports first
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2. Remove unused private functions
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3. Remove unused exported functions
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4. Remove unused types/interfaces
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5. Remove unused files
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## Consolidation Phase
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### Identify Duplicates
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- Similar functions with minor differences
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- Copy-pasted code blocks
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- Repeated patterns
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### Consolidation Strategies
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1. **Extract utility function** - for repeated logic
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2. **Create base class** - for similar classes
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3. **Use higher-order functions** - for repeated patterns
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4. **Create shared constants** - for magic values
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## Verification
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After cleanup:
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1. `npm run build` - builds successfully
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2. `npm test` - all tests pass
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3. `npm run lint` - no new lint errors
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4. Manual smoke test - features work
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## Report Format
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```
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Dead Code Analysis
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==================
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Removed:
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- file.ts: functionName (unused export)
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- utils.ts: helperFunction (no callers)
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Consolidated:
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- formatDate() and formatDateTime() → dateUtils.format()
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Remaining (manual review needed):
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- oldComponent.tsx: potentially unused, verify with team
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```
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---
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**CAUTION**: Always verify before removing. When in doubt, ask or add `// TODO: verify usage` comment.
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