a5c-ai/dead-code-eliminator
library/specializations/code-migration-modernization/skills/dead-code-eliminator/SKILL.md
Identify and safely remove dead, unused, and unreachable code from codebases
$ install --global
skillsauthnpx skillsauth add a5c-ai/babysitter dead-code-eliminatorInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Apr 28, 2026, 4:29 PM183.9s2 files scanned
SKILL.md
- name:
- dead-code-eliminator
- description:
- Identify and safely remove dead, unused, and unreachable code from codebases
- allowed-tools:
- ["Bash", "Read", "Write", "Grep", "Glob", "Edit"]
Dead Code Eliminator Skill
Identifies and safely removes dead code, unused functions, unreachable code paths, and orphaned files from codebases to reduce complexity and maintenance burden.
Purpose
Enable safe dead code removal for:
- Codebase simplification
- Migration preparation
- Technical debt reduction
- Build size optimization
- Maintenance cost reduction
Capabilities
1. Unused Function Detection
- Find uncalled functions
- Identify unused exports
- Detect unreferenced methods
- Map call graphs
2. Unreachable Code Identification
- Analyze control flow
- Find code after returns
- Detect impossible conditions
- Identify dead branches
3. Unused Variable Detection
- Find unread variables
- Identify write-only variables
- Detect unused parameters
- Flag shadowed variables
4. Orphan File Detection
- Find unimported modules
- Identify orphaned assets
- Detect unused configuration
- Map file dependencies
5. Safe Removal Verification
- Verify no runtime references
- Check dynamic imports
- Validate reflection usage
- Test after removal
6. Impact Analysis
- Estimate removal scope
- Calculate size reduction
- Assess risk level
- Document dependencies
Tool Integrations
| Tool | Language | Integration Method | |------|----------|-------------------| | ts-prune | TypeScript | CLI | | unimported | JavaScript | CLI | | deadcode | Python | CLI | | UCDetector | Java | Eclipse Plugin | | unused | Rust | CLI | | deadcode | Go | CLI | | webpack-bundle-analyzer | JavaScript | CLI |
Output Schema
{
"analysisId": "string",
"timestamp": "ISO8601",
"deadCode": {
"functions": [
{
"file": "string",
"name": "string",
"line": "number",
"confidence": "high|medium|low",
"reason": "string"
}
],
"variables": [],
"files": [],
"unreachable": []
},
"impact": {
"filesAffected": "number",
"linesRemovable": "number",
"estimatedSizeReduction": "string"
},
"risks": [],
"recommendations": []
}
Integration with Migration Processes
- code-refactoring: Pre-refactoring cleanup
- legacy-decommissioning: Feature removal
- monolith-to-microservices: Service extraction prep
Related Skills
static-code-analyzer: Combined analysiscode-smell-detector: Related smell detection
Related Agents
legacy-decommissioning-specialist: Uses for cleanupcode-transformation-executor: Executes removal
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