Repomix

Repomix Skill

Purpose

Generate comprehensive codebase summaries for analysis and understanding.

When Active

User needs codebase overview, unfamiliar with repo structure, preparing for full analysis.

Expertise

Usage

Local Project

repomix
# Output: repomix-output.xml

Remote Repository

repomix --remote https://github.com/owner/repo

With Configuration

Create .repomixignore to exclude files (same syntax as .gitignore).

Common Patterns

• Generate summary before full codebase review
• Create docs/codebase-summary.md from repomix output
• Check freshness: if summary >2 days old, regenerate
• Use for unfamiliar codebases or onboarding

Output Analysis

• Extract file structure and size metrics
• Identify key entry points
• Understand module organization
• Find documentation files
• Note configuration files

Patterns

Integration with Other Skills

• With Code Review: Use summary to understand scope
• With Debugging: Use for context before deep dive
• With Documentation: Extract codebase structure for docs
• With Planning: Use to assess complexity

Best Practices

• Generate fresh summary at project start
• Include summary in onboarding docs
• Update when major restructuring happens
• Use with .repomixignore for large monorepos
• Reference summary in documentation
• Cross-check with actual repo structure

Related Skills

• knowledge-retrieval — Internal-first knowledge search protocol
• docs-seeker — External documentation lookup (Context7, WebSearch)