Repomix solves the context problem for AI-assisted development: getting your entire codebase into an LLM's context window. Run npx repomix in any project directory and it generates a single file combining all source files with clear separators, an AI-oriented header explaining the structure, and token counts per file and directory. The output respects .gitignore automatically and runs Secretlint security checks to prevent accidentally sharing API keys or credentials.
The MCP server mode is particularly powerful — configure Repomix as an MCP server in Claude Desktop, Cursor, or Cline and AI assistants can directly package and analyze repositories without manual file preparation. The --compress flag uses Tree-sitter parsing to extract key code elements (function signatures, class definitions, type declarations) while stripping implementation details, dramatically reducing token count while preserving structural understanding.
Recent additions include Claude Agent Skills generation (--skill-generate) that creates structured reference packages for Claude Code, and --split-output for automatically splitting large codebases into multiple files sized for AI tools with upload limits. The Chrome extension adds a Repomix button to any GitHub repository page. With MIT license and active development, Repomix has become essential infrastructure for developers using AI coding assistants.
