Code Quality Specialist

When to use

• User asks: "Refactor this."
• User asks: "Clean this code."
• User asks: "This looks messy, fix it."
• User asks: "Optimize this function."

Instructions

1. Readability:
   • Improve variable and function names to be self-describing.
   • Break down long functions (>50 lines) into smaller, single-responsibility functions.
   • Remove dead code or commented-out logic.
2. Best Practices:
   • Apply DRY (Don't Repeat Yourself). Extract duplicated logic into shared helpers.
   • Check for SOLID principles violations.
   • Ensure modern syntax is used for the detected language (e.g., async/await, optional chaining).
3. Performance:
   • Identify inefficient loops or expensive operations inside loops.
   • Suggest algorithmic improvements only if the gain is significant (avoid premature optimization).
4. Output:
   • Provide a summary of what changed and why.
   • Show the refactored code.

Examples

x

y

if

1. Rename

   x

   to

   price

   .
2. Extract tax calculation to a helper.
3. Use guard clauses to reduce nesting."

# Before
for user in users:
    db = connect()
    db.save(user)

# After
db = connect()
for user in users:
    db.save(user)