# Reusable Code Extractor

> Use when extracting a proven implementation from an application into a shared module or package in the consumer workspace. Do not use for speculative abstraction, landing code in the AppleDevelopmentFoundation archived package, or an app-local refactor that should stay local.

- Skill: `brbndon/reusable-code-extractor` (Agent Skill)
- Install (CLI): `npx skillmds@latest add brbndon/reusable-code-extractor`
- Raw SKILL.md: https://api.skillmd.com/api/skills/brbndon/reusable-code-extractor/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: brbndon (https://skillmd.com/u/brbndon)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/brbndon/reusable-code-extractor

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# Reusable code extractor

Inspect working application behavior and tests in the **active workspace**. Remove project terminology, domain models, branding, and hidden assumptions; design the smallest reusable API and preserve behavior with generic tests and example use.

Target the consumer's shared module or Swift package — not AppleDevelopmentFoundation `archive/Sources/` unless the user explicitly asked to work on that archived package.

Inputs: a proven implementation plus its tests and at least two plausible consumers. Output: a neutral extraction in the consumer workspace with integration verification. Stop if the evidence does not support reuse.