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Refactor plan for messy code

Get a safe, step-by-step refactor plan for a piece of code, with tests to add first.

DeepSeekCodingRuleStack original

Written for DeepSeek Chat (DeepThink reasoning mode) · Updated 2026-10-17

Note: Review and test before use. Provided as is, without warranty. See Terms.

Here is code from [language/framework] that is hard to maintain:
```
[paste code]
```
Goals: [readability, performance, testability].
1. List the problems you see, most important first.
2. Propose a refactor in small steps that keep behavior the same.
3. List tests I should write before changing anything.
4. Show the refactored code for step 1 only.

Replace everything in [square brackets] with your own details.

Settings & parameters

• DeepThink on for larger files

Variations

• Ask for a version with type hints.
• Convert callbacks to async/await.

Tips

• Small steps make refactors reviewable.
• Do not paste secrets or proprietary code you are not allowed to share.