---
title: "Diff YAML manifests semantically and surface meaningful drift before apply with dyff"
description: "Use dyff to compare YAML documents by structure and changed paths so agents can review configuration drift without the noise of plain line diffs."
verification: "listed"
source: "https://github.com/homeport/dyff"
author: "homeport"
publisher_type: "open_source_project"
category:
  - "Code Quality & Review"
framework:
  - "Multi-Framework"
tool_ecosystem:
  github_repo: "homeport/dyff"
  github_stars: 1800
---

# Diff YAML manifests semantically and surface meaningful drift before apply with dyff

Use dyff to compare YAML documents by structure and changed paths so agents can review configuration drift without the noise of plain line diffs.

## Prerequisites

dyff

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

Install command or upstream instructions:

```
Install dyff from the project release or package-manager path documented in the repository, then compare files with `dyff between old.yaml new.yaml`.
```

## Documentation

- https://github.com/homeport/dyff

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/diff-yaml-manifests-semantically-and-surface-meaningful-drift-before-apply-with-dyff/)