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understand-diff

Analyze git diffs against a project knowledge graph to identify affected components and dependencies.

Updated Mar 26, 2026
Search Tags:#git#code analysis#pull request#knowledge graph#impact analysis#risk assessment
One-click install
npx skills add https://github.com/tedtv1007-ctrl/milk-skills-library --skill understand-diff-tedtv1007-ctrl
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: understand-diff
Source: https://github.com/tedtv1007-ctrl/milk-skills-library/tree/main/understand-diff
Command: npx skills add https://github.com/tedtv1007-ctrl/milk-skills-library --skill understand-diff-tedtv1007-ctrl

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill solves the difficulty of understanding the impact of code changes by mapping git diffs directly to your project's architectural knowledge graph.

Core Features & Use Cases

  • Impact Analysis: Automatically identifies which components and architectural layers are affected by a specific set of code changes.
  • Risk Assessment: Evaluates the complexity and blast radius of modifications to highlight potential breaking changes.
  • Use Case: When reviewing a complex pull request, use this skill to instantly see which downstream dependencies and architectural layers might be impacted by the proposed changes.

Quick Start

Run the understand-diff skill to analyze the impact of the current git branch changes against the project knowledge graph.

Frequently Asked Questions about understand-diff

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

FAQPage Schema
How do I analyze the impact of git diffs on my project architecture?▼

To analyze the impact of git diffs, cross-reference changed file paths with a project-specific knowledge graph JSON file. This identifies affected components, downstream dependencies, and architectural layers to assess modification risks.

What is the best way to assess code modification risks when reviewing a pull request?▼

Assessing code modification risks involves mapping git diffs directly to your project knowledge graph. This evaluates complexity and blast radius to highlight potential breaking changes within the proposed pull request modifications.

Do I need a pre-generated knowledge graph to analyze downstream dependencies?▼

Yes, you need a pre-generated knowledge graph at .understand-anything/knowledge-graph.json. This file provides the architectural context required to identify downstream dependencies and evaluate modification impacts.

Can I use this approach to identify affected architectural layers in any git repository?▼

Yes, as long as standard git CLI access is available and the repository contains the required knowledge graph JSON file. It automatically identifies affected components and architectural layers by cross-referencing git branch changes.

What are the limitations of mapping code changes to a knowledge graph?▼

The limitation is the strict dependency on a pre-generated knowledge graph JSON file at .understand-anything/knowledge-graph.json. Without this architectural context and standard git CLI access, modification risks cannot be evaluated.

How does mapping git diffs to a knowledge graph work?▼

Mapping git diffs works by cross-referencing changed file paths extracted from the git branch against a project knowledge graph JSON file. It correlates file changes with architectural layers and components to calculate blast radius.

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