finding-duplicate-functions
✓Use when auditing a codebase for semantic duplication - functions that do the same thing but have different names or implementations. Especially useful for LLM-generated codebases where new functions are often created rather than reusing existing ones.
Installation
SKILL.md
LLM-generated codebases accumulate semantic duplicates: functions that serve the same purpose but were implemented independently. Classical copy-paste detectors (jscpd) find syntactic duplicates but miss "same intent, different implementation."
This skill uses a two-phase approach: classical extraction followed by LLM-powered intent clustering.
| 1. Extract | scripts/extract-functions.sh | - | catalog.json | | 2. Categorize | scripts/categorize-prompt.md | haiku | categorized.json | | 3. Split | scripts/prepare-category-analysis.sh | - | categories/.json | | 4. Detect | scripts/find-duplicates-prompt.md | opus | duplicates/.json | | 5. Report | scripts/generate-report.sh | - | report.md |
Use when auditing a codebase for semantic duplication - functions that do the same thing but have different names or implementations. Especially useful for LLM-generated codebases where new functions are often created rather than reusing existing ones. Source: obra/superpowers-lab.
Facts (cite-ready)
Stable fields and commands for AI/search citations.
- Install command
npx skills add https://github.com/obra/superpowers-lab --skill finding-duplicate-functions- Source
- obra/superpowers-lab
- Category
- </>Dev Tools
- Verified
- ✓
- First Seen
- 2026-02-01
- Updated
- 2026-02-18
Quick answers
What is finding-duplicate-functions?
Use when auditing a codebase for semantic duplication - functions that do the same thing but have different names or implementations. Especially useful for LLM-generated codebases where new functions are often created rather than reusing existing ones. Source: obra/superpowers-lab.
How do I install finding-duplicate-functions?
Open your terminal or command line tool (Terminal, iTerm, Windows Terminal, etc.) Copy and run this command: npx skills add https://github.com/obra/superpowers-lab --skill finding-duplicate-functions Once installed, the skill will be automatically configured in your AI coding environment and ready to use in Claude Code or Cursor
Where is the source repository?
https://github.com/obra/superpowers-lab
Details
- Category
- </>Dev Tools
- Source
- skills.sh
- First Seen
- 2026-02-01