feat: add TOON output format for token-efficient AI processing

CHANGELOG.md

@@ -0,0 +1,38 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.2.0] - 2025-11-01
+
+### Added
+- **TOON Output Format**: New token-efficient output format using the `rtoon` library
+  - Reduces token count by 2-5% for code repositories compared to JSON
+  - Up to 30-60% savings for structured data
+  - Use with `--format toon` option
+- Comprehensive test suite with 34 tests covering CLI, config, scanning, formatting, and security
+- Integration testing with real repositories (serde crate) validating TOON efficiency
+
+### Changed
+- Updated dependencies: Added `rtoon = "0.1.3"`
+- Made formatter functions public for testing
+- Enhanced CLI argument validation for output formats
+
+### Fixed
+- Improved scanner logic for include pattern matching when using subdirectories
+
+## [0.1.0] - 2025-10-XX
+
+### Added
+- Initial release of Remix - Rust implementation of repomix
+- Repository packing for AI tools
+- Multiple output formats: Markdown, JSON, Text
+- Remote repository support
+- Intelligent file filtering with include/exclude patterns
+- Multi-layered ignore system (.gitignore, .mixignore, custom patterns)
+- Security checks for sensitive information
+- Comment removal feature
+- Flexible JSON configuration
+- High-performance parallel processing

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "remix"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 authors = ["Trenton Sousa tdsousa1993@gmail.com"]
 description = "A Rust implementation of repomix - pack repositories for AI tools"
@@ -31,6 +31,7 @@ crossbeam = "0.8"
 rayon = "1.8"
 tree_magic_mini = "3.0"
 glob-match = "0.2"
+rtoon = "0.1.3"
 
 [dev-dependencies]
 tempfile = "3.9"

README.md

@@ -98,7 +98,7 @@ flowchart TD
 | 🎯 **Intelligent Filtering** | Include/exclude files using glob patterns |
 | 🛡️ **Multi-layered Ignore System** | Uses `.gitignore`, `.mixignore`, and custom ignore patterns |
 | 🔒 **Security Checks** | Automatically detect and warn about sensitive information |
-| 📝 **Multiple Output Formats** | Markdown, JSON, and plain text support |
+| 📝 **Multiple Output Formats** | Markdown, JSON, plain text, and TOON support |
 | 🧹 **Comment Removal** | Optionally strip comments from source code to reduce token count |
 | ⚙️ **Flexible Configuration** | JSON-based config files with CLI overrides |
 | 🎨 **AI Tool Optimized** | Formatted output designed for LLM consumption |
@@ -211,8 +211,8 @@ remix --init
 # Specify output path
 remix --output ./my-repo.md
 
-# Change output format (md, json, txt)
-remix --format json
+# Change output format (md, json, txt, toon)
+remix --format toon
 
 # Open output file after generation
 remix --open
@@ -327,6 +327,14 @@ Structured JSON output containing:
 - File information (path, size, type)
 - Configuration used
 
+### TOON
+
+Token-efficient output using the TOON format:
+- Compact representation optimized for LLM prompts
+- 30-60% fewer tokens than JSON for structured data
+- Human-readable with indentation-based structure
+- Ideal for AI analysis workflows
+
 ### Text
 
 Plain text output with: