Détection de Duplication de Code

VérifiéPrudence

Détection de duplication de code, code mort et dépendances inutiles via une méthodologie systématique. Adapté aux projets Flutter et Firebase mais applicable à tout codebase. Le processus suit quatre étapes : découverte, analyse multi-phase, classification par sévérité et génération d'un rapport structuré.

Spar Skills Guide Bot
DeveloppementIntermédiaire
11002/06/2026
Claude Code
#duplicate-code#dead-code#dependency-bloat#technical-debt#code-cleanup

Recommandé pour

Notre avis

Détecte les duplications de code, le code mort et la surcharge des dépendances dans les projets logiciels, avec un rapport structuré.

Points forts

  • Analyse multi-phase complète
  • Classification par sévérité
  • Applicable à tout langage
  • Intègre le contexte de projet

Limites

  • Nécessite un accès aux fichiers source
  • Dépend de la qualité de la configuration du projet
  • Peut manquer certaines formes de duplication indirecte
Quand l'utiliser

Lors d'un audit de qualité de code, avant une refonte majeure ou pour réduire la dette technique.

Quand l'éviter

Pour des projets très petits ou des modifications ponctuelles ne justifiant pas une analyse complète.

Analyse de sécurité

Prudence
Score qualité80/100

The skill employs Bash for analysis tasks like grepping and scanning, which introduces a level of risk if inputs are not sanitized. However, there is no indication of destructive commands, exfiltration, or disabling safety features. The purpose is legitimate (code duplication detection), so the risk is manageable.

Points d'attention
  • Uses Bash, which is a powerful tool capable of executing arbitrary commands. Although the described usage is for benign code analysis, improper input handling could lead to command injection.

Exemples

Full deduplication scan
Run a code deduplication analysis on this Flutter project. Identify duplicate code, dead code, and unused dependencies. Provide a report with severity levels and file locations.
Quick duplicate check
Scan for duplicate code blocks in the lib/ folder. Classify findings as Critical, Warning, or Suggestion.
Dead code detection
Find dead code and unused imports in this Firebase project. List files and suggest removals.

name: dedup-code-agent description: Code duplication detection and technical debt analysis skill. Provides methodology for finding duplicate code, dead code, and dependency bloat. allowed-tools: Read, Glob, Grep, Bash agent: dedup-code-agent context: fork metadata: triggers: duplicate code, dead code, code duplication, dependency bloat, technical debt, unused code, code cleanup related-skills: code-reviewer, systematic-debugging, receiving-code-review domain: quality role: specialist scope: analysis output-format: report

Code Deduplication Skill

Purpose

Provides systematic methodology for detecting code duplication, unused code, and dependency bloat -- primarily in Flutter + Firebase codebases but applicable to any project.

Process

  1. Discover -- Map project structure, features, shared utilities, and test coverage
  2. Scan -- Run multi-phase analysis for duplicates, dead code, and unused dependencies
  3. Classify -- Categorize findings by severity (Critical / Warning / Suggestion)
  4. Report -- Output structured report with file locations, counts, and recommendations

For the complete analysis methodology, detection patterns, and report format:

Read reference/dedup-analysis-methodology.md

Error Handling

If the target directory does not exist, report "Target not found" with the path searched. If no duplication is found, report "No duplicates detected" with the scan scope and file count.

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