Master effective code review practices to provide constructive feedback, catch bugs early, and foster knowledge sharing while maintaining team morale.
NewMaintained
Automatic
◆Coding pack
Last verified 8/29/2026
What it changes
Passed 19 of 22 test cases with the skill, and 19 of 22 without it.
Without skill86%
With skill86%
Checks it passed that the model alone missed
The review includes a dedicated section for test and coverage notes.
Issues are explicitly categorized by severity levels using blocking, important, or minor classifications.
1 fixed18 passed either way2 still failing1 broke
Pass-rate lift
0 pp
Tokens
+5%
Agent turns
0%
Response time
-4%
Model gemini-3.6-flashMeasured 8/29/2026v119 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
A test case the skill fixed. Same model, same prompt, with and without the skill.
Prompt
Review this PR diff changing the database query layer in PostgreSQL: `+ const res = await db.query('SELECT * FROM users WHERE id = ' + req.params.id);`. Provide a complete review output following standard code review structure.
What was checked, without and with the skill
Checked
Without skill
With skill
The review includes a high-level summary section of findings.
Passed
Passed
Issues are explicitly categorized by severity levels using blocking, important, or minor classifications.
Missed
Passed
The review includes a dedicated section for test and coverage notes.
Missed
Passed
case-01 · gemini-3.6-flash · 8/29/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md40 linessingle file
Code Review Excellence
Transform code reviews from gatekeeping to knowledge sharing through constructive feedback, systematic analysis, and collaborative improvement.
Use this skill when
Reviewing pull requests and code changes
Establishing code review standards
Mentoring developers through review feedback
Auditing for correctness, security, or performance
Do not use this skill when
There are no code changes to review
The task is a design-only discussion without code
You need to implement fixes instead of reviewing
Instructions
Read context, requirements, and test signals first.
Review for correctness, security, performance, and maintainability.
Provide actionable feedback with severity and rationale.
Ask clarifying questions when intent is unclear.
If detailed checklists are required, open resources/implementation-playbook.md.
Output Format
High-level summary of findings
Issues grouped by severity (blocking, important, minor)
Suggestions and questions
Test and coverage notes
Resources
resources/implementation-playbook.md for detailed review patterns and templates.