[Research] Add Repomix to Developer Tools & Integrations

[alvinreal]

Project: Repomix

Elite Criteria Checklist (ALL Required)

• Elite Criteria: ALL criteria met
  • ⭐ Stars: 23,147 (threshold: 1000+)
  • 🔄 Active: 2026-04-06 (within 6 months)
  • 🏭 Production: Widely used by developers for LLM context preparation
  • 📚 Quality: Well-documented, MIT licensed, active maintenance

Evidence of Production Usage

Repomix is widely used by developers to package codebases for LLM analysis. It has gained significant traction (23K+ stars) as a standard tool for preparing repository context for AI assistants like Claude, ChatGPT, DeepSeek, and others. The tool supports smart filtering, token counting, and multiple output formats.

Why This Belongs in Elite Tier

Repomix solves a critical developer workflow problem: efficiently feeding entire codebases to LLMs. With 23,147 stars and very recent activity (last push April 6, 2026), it demonstrates strong community adoption and active maintenance. It integrates seamlessly with popular LLM CLI tools already in this list (like Simon Willison's LLM).

Category

Developer Tools & Integrations > CLI Tools & API Clients

Changes

• Added Repomix entry to CLI Tools & API Clients subsection
• Single-category, README-only change (auto-merge eligible)

Validation

• Local validation passed (python3 tools/validate_awesome.py --skip-remote)
• Entry format matches existing entries
• Single category only
• Non-structural change