# Dead Code

> Find unused functions and dead code in the codebase

Find unused functions and dead code in the codebase

- Page: https://ss33.ai/skills/parcadei/dead-code-49638059699
- Publisher: parcadei
- Category: [Software Development](https://ss33.ai/skills/category/software-development-t44z8z) › [Developer docs & tooling](https://ss33.ai/skills/category/software-development-t44z8z/developer-docs-and-tooling-nich6w)
- License: MIT
- Source: https://github.com/parcadei/continuous-claude-v3/blob/d07ff4b06b62f43771bc0c927d0211b734d6149e/.claude/skills/dead-code/SKILL.md

## Skill

SKILL.md: https://ss33.ai/api/v1/ss33/download/parcadei/dead-code-49638059699

# Dead Code Detection

Find unused functions and dead code using TLDR static analysis.

## Quick Start

```bash
# Scan entire project
tldr dead .

# Scan specific directory
tldr dead src/

# Specify entry points (functions to exclude from analysis)
tldr dead . --entry main cli test_

# Specify language
tldr dead . --lang python
tldr dead . --lang typescript
```

## Output Format

```
Dead code analysis:
  Total functions: 150
  Dead functions: 12

Unused functions:
  - old_helper (src/utils.py:42)
  - deprecated_func (src/legacy.py:15)
  - _unused_method (src/api.py:230)
```

## Cross-Platform

Works on Windows, Mac, and Linux (including WSL).

```bash
# Windows (PowerShell)
tldr dead .

# Mac/Linux
tldr dead .
```

## Entry Points

Functions matching entry patterns are excluded from dead code analysis:
- `main`, `cli` - Application entry points
- `test_*`, `*_test` - Test functions
- `setup`, `teardown` - Fixtures
- `@app.route`, `@api.endpoint` - Framework handlers

```bash
# Custom entry points
tldr dead src/ --entry main api_handler background_job
```

## Integration

This skill replaces the session-start-dead-code hook with on-demand analysis.

| Approach | Pros | Cons |
|----------|------|------|
| Hook (removed) | Automatic | Slowed startup by 3s |
| Skill (this) | On-demand, fast | Manual invocation |

## Related Commands

```bash
# Impact analysis (who calls this?)
tldr impact func_name .

# Architecture layers
tldr arch src/

# Full codebase structure
tldr structure . --lang python
```