Repomix tutorial: pack your codebase into one file for an LLM

Who it is forA developer asking a chat model to review a whole project.

The problemCopying files one by one into chat loses structure.

The outcomeOne AI-friendly file containing the repository.

What you need first

Node.js (npx), or Homebrew

Steps

Run npx repomix@latest in your project
Open the generated file
Attach it to your chat model
Ask for a review or refactor plan

Prompt for your agent

Run `npx repomix@latest` in <repo>, attach the output to the chat, and ask for the top five refactoring opportunities. Confirm every file path cited exists.

Caveat. Large repos can exceed a model's context window; use include patterns to trim.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for yamadashy/repomix and "Pack your repo into one file for an LLM"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp