Claude-skill-registry diff-review

Get Gemini's code review of git changes after Claude makes edits. Trigger when user wants a second opinion on code changes ("have Gemini review my changes", "get code review from Gemini", "review this diff"), or as a final check before committing.

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 "$T/skills/data/diff-review" ~/.claude/skills/majiayu000-claude-skill-registry-diff-review && rm -rf "$T"

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

Diff Review via Gemini

Have Gemini review git changes for a second perspective on code quality.

Quick Start

Save diff to project root, have Gemini review, then clean up:

git diff --cached > gemini-review.diff
gemini "Review the code changes at gemini-review.diff for issues. Do not make any changes. Respond with feedback only." --allowed-tools read_file,codebase_investigator,glob,search_file_content,list_directory,write_todos -o text 2>&1
rm gemini-review.diff

Patterns

Staged changes:

git diff --cached > gemini-review.diff
gemini "Review gemini-review.diff for:
1. Bugs or logic errors
2. Security vulnerabilities
3. Style inconsistencies
4. Missing error handling
Do not make any changes. Respond with feedback only." --allowed-tools read_file,codebase_investigator,glob,search_file_content,list_directory,write_todos -o text 2>&1
rm gemini-review.diff

All uncommitted changes:

git diff HEAD > gemini-review.diff
gemini "Review gemini-review.diff. Do not make any changes. Respond with feedback only." --allowed-tools read_file,codebase_investigator,glob,search_file_content,list_directory,write_todos -o text 2>&1
rm gemini-review.diff

Specific commit:

git show abc123 > gemini-review.diff
gemini "Review the commit at gemini-review.diff. Do not make any changes. Respond with feedback only." --allowed-tools read_file,codebase_investigator,glob,search_file_content,list_directory,write_todos -o text 2>&1
rm gemini-review.diff

Focused Reviews

Security focus:

git diff --cached > gemini-review.diff
gemini "Security review of gemini-review.diff. Check for:
- XSS vulnerabilities
- SQL/command injection
- Sensitive data exposure
- Authentication/authorization issues
Do not make any changes. Respond with feedback only." --allowed-tools read_file,codebase_investigator,glob,search_file_content,list_directory,write_todos -o text 2>&1
rm gemini-review.diff

Performance focus:

git diff --cached > gemini-review.diff
gemini "Performance review of gemini-review.diff. Check for:
- Inefficient algorithms
- N+1 queries
- Memory leaks
- Blocking operations
Do not make any changes. Respond with feedback only." --allowed-tools read_file,codebase_investigator,glob,search_file_content,list_directory,write_todos -o text 2>&1
rm gemini-review.diff

With File Context

Ask Gemini to read full files for better context:

git diff --cached > gemini-review.diff
gemini "Review gemini-review.diff. Also read the full files:
- src/auth/login.ts
- src/utils/validate.ts
to understand the broader context. Do not make any changes. Respond with feedback only." --allowed-tools read_file,codebase_investigator,glob,search_file_content,list_directory,write_todos -o text 2>&1
rm gemini-review.diff

Notes

Gemini must not make any changes, provide feedback ONLY.
Gemini respects
```
.gitignore
```
- it cannot read files matching gitignore patterns
Gemini can only read files in the workspace directory (project root)
Requires
```
dangerouslyDisableSandbox: true
```
for Bash calls
May take 1-2 minutes for thorough review
See
```
references/setup.md
```
for troubleshooting