code-refactoring-assistant

Suggest and apply code refactorings to improve readability, maintainability, and code quality. Use this skill when improving existing code structure, eliminating code smells, applying design patterns, simplifying complex logic, extracting duplicated code, renaming for clarity, or preparing code for new features. Provides specific before/after examples, explains benefits, identifies risks, and ensures behavior preservation through tests.

1.26x

Quality

67%

Does it follow best practices?

Impact

91%

1.26x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

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npx tessl skill review --optimize ./skills/code-refactoring-assistant/SKILL.md

Evaluation results

90%

28%

Legacy Order System Cleanup

Extract Class and Parameter Object

Criteria

Without context

With context

Tests written first

50%

58%

Refactoring plan current state

100%

Refactoring plan numbered steps

100%

Refactoring plan risk and time

40%

Address class extracted

100%

Customer class extracted

100%

Parameter object used in functions

100%

Magic numbers replaced

100%

Loop replaced with pipeline

100%

Behavior preserved

100%

Commit message Refactor prefix

50%

66%

Commit message Benefits section

100%

97%

27%

Payment Processor Refactoring

Replace Conditional with Polymorphism and Guard Clauses

Criteria

Without context

With context

Tests before refactoring

100%

Guard clauses applied

100%

Polymorphism for payment types

100%

Fee rates as named constants

100%

Card number length as named constant

100%

Refactoring plan structure

70%

Behavior preserved

100%

get_fee_description and get_required_fields refactored

100%

Commit message Refactor prefix

50%

100%

Commit message Benefits section

100%

86%

Data Pipeline Module Cleanup

Incremental refactoring workflow and documentation

Criteria

Without context

With context

Tests before changes

100%

Multiple log steps

100%

Tests-pass confirmation per step

100%

Per-step commit messages

Guard clauses applied

100%

Extract Method applied

100%

Loops replaced with pipelines

100%

Magic numbers as named constants

100%

No new behavior added

100%

Final commit Benefits section

No feature mixing

100%

Repository: ArabelaTso/Skills-4-SE
Commit: 0f00a4f

Evaluated: 29 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Legacy Order System Cleanup Payment Processor Refactoring Data Pipeline Module Cleanup

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