code-optimizer

Analyzes and optimizes code for better performance, memory usage, and efficiency. Use when code is slow, memory-intensive, or inefficient. Supports Python and Java optimization including execution speed improvements, memory reduction, database query optimization, and I/O efficiency. Provides before/after examples with detailed explanations of why optimizations work, complexity analysis, and measurable performance improvements.

1.06x

Quality

88%

Does it follow best practices?

Impact

87%

1.06x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Evaluation results

74%

Log Analytics Performance Overhaul

Python optimization report with before/after template

Criteria

Without context

With context

Before section present

100%

After section present

100%

Issues listed

100%

Complexity annotated

100%

Gain quantified

100%

Why This Works explanation

100%

Trade-offs documented

100%

List comprehension used

100%

Set for membership testing

100%

Built-in function used

100%

Generator used

time.time() measurement

timeit comparison

100%

Validation checklist present

90%

-5%

Java Service Performance Investigation

Java optimization with categorization and measurement

Criteria

Without context

With context

Optimization type labeled

100%

Before code shown

100%

After code shown

100%

Complexity notation

100%

Why This Works section

100%

Trade-offs section

100%

StringBuilder used

100%

HashSet for lookup

100%

Primitive array used

100%

System.nanoTime() measurement

100%

Numeric improvement shown

100%

Validation checklist

50%

99%

14%

E-Commerce Platform Database Performance Audit

Database query optimization and profiling workflow

Criteria

Without context

With context

N+1 fix with joinedload

100%

Batch insert used

100%

Single commit after batch

100%

Index recommendation

100%

Buffered I/O applied

100%

cProfile guidance

100%

line_profiler guidance

100%

memory_profiler guidance

100%

Before section in report

100%

Gain estimate in report

100%

Why This Works explanation

100%

Validation checklist

100%

91%

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

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

Table of Contents

Log Analytics Performance Overhaul Java Service Performance Investigation E-Commerce Platform Database Performance Audit

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