Use this skill when reviewing any code change, PR, or diff before merge — whether written by yourself, another agent, or a human. Conducts multi-axis code review across correctness, readability, architecture, security, and performance with structured severity labeling and verification gates.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Code Review & Quality
## Overview
Multi-dimensional code review with quality gates. Every change gets reviewed before merge — no exceptions. Review covers five axes: correctness, readability, architecture, security, and performance.
**The approval standard:** Approve a change when it definitely improves overall code health, even if it isn't perfect. Perfect code doesn't exist — the goal is continuous improvement. Don't block a change because it isn't exactly how you would have written it. If it improves the codebase and follows the project's conventions, approve it.
**Distinction from code-review skill:** This skill covers the *quality framework and standards* for what constitutes a good review. The `code-review` skill covers the PR review *workflow and tooling*. Load both for complete coverage.
## When to Use
- Before merging any PR or change
- After completing a feature implementation
- When another agent or model produced code you need to evaluate
- When refactoring existing code
- After any bug fix (review both the fix and the regression test)
- When asked to evaluate code quality across multiple dimensions
## The Five-Axis Review
…
The line at the top of this page pins the label git:20261026.ddc2cce, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_f6ufe4uc6vxfiq2a
GET https://markdownregistry.com/api/v1/resolve?ref=jpeetz/agent-skills/code-review-and-quality
GET https://markdownregistry.com/api/v1/blob/12de3d884314f9cd962f09231032178d4c593ceac70ee95210c3675dbe956132
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