Repomix (Codebase Packaging)

Use Repomix to pack entire codebases into a single, context-optimized format for analysis.

Tools

Tool	Purpose
repomix_pack_codebase	Pack local codebase
repomix_pack_remote_repository	Pack a GitHub repository
repomix_grep_repomix_output	Search within packed output
repomix_read_repomix_output	Read sections of packed output

Packing a Remote Repository

repomix_pack_remote_repository({
  remote: "https://github.com/5dlabs/my-project",
  branch: "develop"
})

Returns a packed representation of the entire codebase.

Searching Packed Output

# After packing, search for specific patterns
repomix_grep_repomix_output({
  pattern: "authentication",
  output_id: "abc123"
})

Reading Specific Sections

repomix_read_repomix_output({
  output_id: "abc123",
  start_line: 100,
  end_line: 200
})

Use Cases

Task	Approach
PRD Analysis	Pack repo to understand existing architecture
Code Review	Pack to see full context of changes
Task Planning	Pack to understand dependencies
Integration	Pack multiple repos for merge planning

Best Practices

1. Pack before planning - Understand the codebase first
2. Use grep for navigation - Don't read everything
3. Focus on relevant sections - Use start/end lines
4. Cache outputs - Reuse packed output for multiple queries