Working With Legacy Code

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name: Working With Legacy Code
description: Safely change and test untested codebases using Michael C. Feathers'' "Working Effectively with Legacy Code". Use when the user mentions "legacy code", "no tests", "untested codebase", "how do I test this", "seams", "characterization tests", "sprout method", "afraid to change this code",…
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# Working With Legacy Code

Part of the **Product & Design Playbooks** pack by wondelai (`wondelai/skills`).

Safely change and test untested codebases using Michael C. Feathers'' "Working Effectively with Legacy Code". Use when the user mentions "legacy code", "no tests", "untested codebase", "how do I test this", "seams", "characterization tests", "sprout method", "afraid to change this code",…

This catalog entry summarizes the skill for discovery. Get the full skill — including any bundled scripts and resources — from the source:

Full skill & source: https://github.com/wondelai/skills/tree/main/working-with-legacy-code