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---
name: dead-code
description: Finds unused functions, variables, exports, and dependencies across the codebase
user-invocable: true
allowed-tools: Bash Grep Glob Read
effort: medium
---
## Dead Code Analysis
1. Find unused exports (TypeScript/JS):
```bash
npx ts-prune 2>/dev/null || npx unimported 2>/dev/null || echo "Running manual search"
```
2. Manual search for likely dead code:
```bash
# Exported but never imported
grep -r "^export " src/ --include="*.ts" -l | head -20
# Functions defined but never called
grep -r "^function \|^const .* = (" src/ --include="*.ts" | head -30
```
3. For each candidate, verify by searching for all usages across the codebase.
4. Report categories:
- **Safe to delete**: confirmed zero usages
- **Probably dead**: only used in tests or commented-out code
- **Keep**: used dynamically or via reflection
5. For safe-to-delete items: ask confirmation, then remove.
Never delete code you're not certain about - mark uncertain items with `// TODO: verify unused`.
