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diff-preview

Analyze git diffs to explain changes and assess impact before committing.

24|6|Updated Dec 19, 2025
Search Tags:#git#analysis#review#diff
One-click install
npx skills add https://github.com/johnlindquist/claude --skill diff-preview
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: diff-preview
Source: https://github.com/johnlindquist/claude/tree/main/skills/diff-preview
Command: npx skills add https://github.com/johnlindquist/claude --skill diff-preview

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires git, google-generativeai, and includes scripts (resource) components.

What problem does it solve?

This Skill eliminates the risk of committing problematic code by providing AI-powered diff analysis, change explanations, and impact assessment before pushing code to ensure quality and prevent regressions.

Frequently Asked Questions about diff-preview

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I review git diffs before committing code?▼

Git diffs show all changes in your working directory or between branches. This Skill analyzes those diffs with AI to explain what changed, why it matters, and potential risks before you commit, helping you catch issues early and understand impact across your codebase.

Can AI explain the impact of my code changes?▼

Yes. This Skill uses Gemini to analyze your git diffs and generate explanations of what changed, assess downstream effects, and identify potential regressions or risks in your modifications before pushing to a branch.

What's the best way to prevent problematic commits?▼

Preview and analyze diffs before committing. This Skill integrates into your pre-commit workflow to generate AI-powered change explanations and impact assessments, letting you review modifications and catch problems before they reach your repository.

Does this work with branch comparisons and PR reviews?▼

Yes. The Skill analyzes git diffs across any comparison—branches, commits, or pull requests. It generates change explanations and review recommendations applicable to branch comparisons and commit reviews to assess modifications across workflows.

What do I need to use AI-powered diff analysis?▼

You need git installed to generate diffs and the google-generativeai dependency to power AI explanations. The Skill handles diff generation and Gemini integration so you can analyze changes without manual setup.

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