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Google Gemini CLI code review with Gemini 2.5 Pro, 1M token context, CI/CD integration
Passed 22 of 22 test cases with the skill, and 10 of 22 without it.
and 12 more in the full report
12 fixed10 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.
Once inside the interactive Gemini CLI terminal session, what slash command triggers an automated review of the current git branch changes?
| Checked | Without skill | With skill |
|---|---|---|
| Specifies the slash command /code-review | Missed | Passed |
The instructions your model reads when the skill loads.
Use Google's Gemini CLI for code review with Gemini 2.5 Pro - featuring a massive 1M token context window that can analyze entire repositories at once.
Sources: Gemini CLI | Code Review Extension | Gemini Code Assist | GitHub Action
| Feature | Benefit |
|---|---|
| Gemini 2.5 Pro | State-of-the-art reasoning for code |
| 1M token context | Entire repositories fit - no chunking needed |
| Free tier | 1,000 requests/day with Google account |
| Consistent output | Clean formatting, predictable structure |
| GitHub native | Gemini Code Assist app for auto PR reviews |
| Benchmark | Score | Notes |
|---|---|---|
| SWE-Bench Verified | 63.8% | Agentic coding benchmark |
| Qodo PR Benchmark | 56.3% | PR review quality |
| LiveCodeBench v5 | 70.4% | Code generation |
| WebDev Arena | #1 | Web development |
# Check Node.js version (requires 20+)
node --version
# Install Node.js 20 if needed
# macOS
test cases passed, vs 10 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.