Prompt · Developer Tools

Legacy Refactor Plan

Breaks a long tangled function into clean pieces with a safe, incremental refactor plan.

Have ready: Paste the function to refactor, its language, and any known callers/tests

Fill in · 3 fields

LANGUAGEPASTE THE FUNCTIONLIST OR "UNKNOWN"

Your prompt

I need to refactor this function safely. First analyze it, then give me a step-by-step plan, then show the refactored code.

Language: [LANGUAGE]
Function:
[PASTE THE FUNCTION]
Its callers/tests I know about: [LIST OR "UNKNOWN"]

Step 1: Analysis, list the distinct responsibilities hidden in this function (aim for one line each) and name the code smells you see.
Step 2: Plan, give me an ordered sequence of small, behavior-preserving refactorings (extract function, rename, introduce parameter object, etc.). Each step must be independently testable, and you must say how I verify it (run what test, or what to check).
Step 3: Show the final refactored code, keeping the public signature unchanged unless you flag why it must change.

Hard constraint: no behavior changes in the refactor itself. If any step risks changing behavior, call it out explicitly and put it last.

Paste it into Muse or any assistant. Blank fields stay as [brackets].

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