How do I install the Diff Review skill?

Run npx skillmds add majiayu000/diff-review in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Diff Review safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Diff Review?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Diff Review free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Diff Review?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Diff Review by majiayu000 — Agent Skill

Name: Diff Review
Rating: 4.666666666666667 (3 reviews)
Author: majiayu000

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.

majiayu000 d45c670 2 files · 4.3 KB Updated Sep 9, 2026 567 repo stars

File contents

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

---name: diff-reviewdescription: 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.--- # 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: ```bash 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:** ```bash 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:** ```bash 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:** ```bash 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:** ```bash 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:** ```bash 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: ```bash 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

Frequently asked questions