Reviews code changes for bugs, style, security, and maintainability. Use aft erwriting code or when user says review code, code review, check my PR. Trig gers: review code, code review, check my changes.
SkillScore95Maintained
Automatic
◆Coding pack
Last verified 8/15/2026
What it changes
Passed 21 of 22 test cases with the skill, and 19 of 22 without it.
Without skill86%
With skill95%
Checks it passed that the model alone missed
The finding severity is categorized as nit.
The output explicitly cites line 13 in controllers/order.js.
The finding is classified as critical due to cross-site scripting.
3 fixed18 passed either way0 still failing1 broke
Pass-rate lift
+9 pp
Tokens
+14%
Agent turns
0%
Response time
-2%
Model gemini-3.6-flashMeasured 8/15/2026v221 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 3
Prompt
Review this Python diff in `api/routes.py`:
```diff
+import sys, os, io, json
```
Evaluate against PEP 8 import formatting guidelines.
What was checked, without and with the skill
Checked
Without skill
With skill
The output flags multiple imports on one line as a style finding.
Passed
Passed
The finding severity is categorized as nit.
Missed
Passed
case-19 · gemini-3.6-flash · 8/15/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md35 linessingle file
Code Reviewer
When to Use
User says review code or task matches this capability
User says code review or task matches this capability
User says check my PR or task matches this capability
User says review my changes or task matches this capability