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Finding Duplicate Functions

Checked
obra·vlatest·backend·MIT

This skill identifies duplicate functions within your codebase, saving development time and reducing redundancy.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add obra/superpowers-lab --skill finding-duplicate-functions -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

obra

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned obra/superpowers-lab at 51111f74f2.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
51111f74f2
Manifest
skills/finding-duplicate-functions/SKILL.md
Scanned
6 files, 732 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill identifies duplicate functions within a provided codebase. It analyzes function signatures and bodies to determine if two or more functions are functionally equivalent, even if their names differ. The output provides a list of these duplicated functions allowing for potential refactoring and code cleanup.

When to use it

  • Code Refactoring: Before undertaking a large-scale code refactor, identify redundant functionality that can be consolidated.
  • Legacy Codebase Analysis: When working with older projects where naming conventions might not be consistent, this skill helps uncover hidden duplication.
  • Post-Copy/Paste Operations: After copying and pasting code blocks, verify if any unintentional duplicates have been introduced.
  • Code Review Assistance: Quickly highlight potential areas of duplicated logic for review by developers.

Key capabilities

  • Function signature analysis
  • Function body comparison
  • Identification of functionally equivalent functions
  • Reporting of duplicate function pairs

Example prompts

  • "Find all duplicate functions in this Python code: [paste code here]"
  • "Analyze the following JavaScript file for duplicated functions and report any findings: [paste code here]"
  • "Are there any redundant functions in this C++ codebase? [paste code here]"

Tips & gotchas

The skill's accuracy depends on the complexity of the code. Very complex or obfuscated code may lead to false positives or missed duplicates. Providing clear and well-formatted code will improve results.