# Dyff

> Use this skill when the user wants to diff YAML or JSON files and see color-coded structural differences.

- Skill: `javimosch/dyff` (Agent Skill)
- Install (CLI): `npx skillmds@latest add javimosch/dyff`
- Raw SKILL.md: https://api.skillmd.com/api/skills/javimosch/dyff/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: javimosch (https://skillmd.com/u/javimosch)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/javimosch/dyff

---

# dyff Plugin
A diff tool for YAML and JSON files with color-coded structural difference output.
## Commands
- `dyff self version` — Print dyff version
- `dyff _ _` — Passthrough to dyff CLI
## Installation
```bash
brew install dyff
```
## Examples
```bash
dyff between file1.yaml file2.yaml
dyff between --json file1.json file2.json
```
## Key Features
- **YAML/JSON diff** — Structural diff for config files
- **Color output** — Color-coded differences
- **Pipeline-ready** — Machine-readable JSON output
- **Multiple formats** — YAML and JSON support