Claude-skill-registry git-diff

Display git changes in GitHub-style unified diff format with colored terminal output. Shows both staged (--cached) and unstaged changes with two-column line numbers, red/green highlighting, and chunk markers. Use when reviewing code changes, preparing commits, or comparing file modifications. Triggers on "git diff", "show changes", "what changed", or "review diff".

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/git-diff" ~/.claude/skills/majiayu000-claude-skill-registry-git-diff && rm -rf "$T"

manifest: skills/data/git-diff/SKILL.md

source content

git-diff

Display git changes in GitHub-style unified diff format.

Execution

Run the Python script to display formatted diff:

python3 scripts/github_diff.py [optional-path]

Output Format

File headers: Dark background with filepath
Line numbers: Two columns (old | new)
Deletions: Red background with
```
-
```
marker
Additions: Green background with
```
+
```
marker
Context: Neutral with both line numbers
Chunk markers: Cyan
```
@@ -n,m +n,m @@
```
headers

Sections

Staged Changes (
```
git diff --cached
```
) - shown first if present
Unstaged Changes (
```
git diff
```
) - working directory modifications

Examples

# Show all changes
python3 scripts/github_diff.py

# Filter by path
python3 scripts/github_diff.py src/components/

Requirements

Python 3.6+
Git installed and in PATH
Terminal with ANSI color support