multi-version-behavior-comparator

Compare behavior across multiple versions of programs or repositories. Use when you need to analyze how functionality changes between versions, identify regressions, compare outputs and exceptions, or validate upgrades. The skill compares execution behavior, test results, outputs, exceptions, and observable states across versions, generating detailed reports showing behavioral divergences, potential regressions, added/removed functionality, and areas requiring validation. Supports multiple programming languages and can work with test suites or execution traces.

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Repositório: ArabelaTso/Skills-4-SE
Última atividade na origem: 20 de fevereiro de 2026 às 09:49
Idioma detectado do SKILL.md: inglês
Estrelas: 240
Forks: 22

Opções de instalação

Por padrão, está selecionado o prompt que primeiro revisa a origem. Você pode mudar para um comando direto ou baixar uma cópia local.

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npx skills add https://github.com/ArabelaTso/Skills-4-SE --skill multi-version-behavior-comparator

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Prefere uma cópia local? Baixe os arquivos disponíveis atualmente no SkillsMP.

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SKILL.md

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Multi-Version Behavior Comparator

Overview

This skill compares behavior across multiple versions of programs, identifying functional changes, regressions, and behavioral divergences to guide safe upgrades and validation.

Quick Start

# Compare two versions python scripts/compare.py v1.0/ v2.0/ # Compare multiple versions with test suite python scripts/compare.py v1.0/ v2.0/ v3.0/ --tests tests/ # Generate detailed report python scripts/compare.py old/ new/ --output report.json

What Gets Compared

Functionality - Added, removed, or modified features

Outputs - Return values, printed output, file changes

Exceptions - Error handling and exception types

Test Results - Pass/fail status across versions

Observable States - Side effects, state changes

Comparison Report

Generates JSON report with:

Behavioral Divergences: Where versions behave differently

Potential Regressions: Functionality that may have broken

Added Features: New functionality in newer versions

Removed Features: Functionality no longer present

Validation Areas: Code requiring manual review

Usage

python scripts/compare.py <version1> <version2> [version3...] [--tests <test_dir>] [--output <report.json>]

Tips

Run before deploying new versions

Use with existing test suites for comprehensive comparison

Review regressions carefully before upgrading

Validate high-risk areas identified in report

name

multi-version-behavior-comparator

description