code-review-assistant

code-review-assistant is a skill for Claude Code, Codex from ArabelaTso/Skills-4-SE. It costs 125 tokens per session (2,773 once invoked), scanned A, original, Apache-2.0.

A tool for examining code changes and reporting possible bugs, security weaknesses, performance problems, and maintainability issues. It can review pull requests, which are proposed changes submitted for discussion and merging.

In plain words
What is it for?
Use it to review pull requests or new code, check edge cases and test quality, find issues such as injection risks, and suggest improvements.
Why use it?
It gives a structured check of changes across correctness, security, performance, tests, and documentation. This helps reviewers notice risks that are easy to miss when reading a patch quickly.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to review pull requests or new code, check edge cases and test quality, find issues such as injection risks, and suggest improvements.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/arabelatso/skills-4-se/code-review-assistant
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add ArabelaTso/Skills-4-SE --skill code-review-assistant
Clone the repo
git clone --depth 1 https://github.com/ArabelaTso/Skills-4-SE

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for code-review-assistant

README.md
[![agentmods](https://agentmods.dev/badge/skills/arabelatso/skills-4-se/code-review-assistant/github.svg)](https://agentmods.dev/skills/arabelatso/skills-4-se/code-review-assistant)
Your own site
<a href="https://agentmods.dev/skills/arabelatso/skills-4-se/code-review-assistant"><img src="https://agentmods.dev/badge/skills/arabelatso/skills-4-se/code-review-assistant/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for code-review-assistant

Your own site · 80×15
<a href="https://agentmods.dev/skills/arabelatso/skills-4-se/code-review-assistant"><img src="https://agentmods.dev/badge/skills/arabelatso/skills-4-se/code-review-assistant.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 125 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,773 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00125 $0.02773
Opus 5.5 $0.00050 $0.01109
Sonnet 5.5 $0.00025 $0.00555
Haiku 4.5 $0.00013 $0.00277

Measured 1mo ago against content hash f7f5b1b1116e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-review-assistant scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/code-review-assistant/SKILL.md · 526 lines

How it starts

The opening of the file, as written. The whole thing — 526 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review Assistant

Overview

Perform thorough, constructive code reviews that identify issues, suggest improvements, and ensure code quality, security, and maintainability.

Review Categories

Examine code across these dimensions:

1. 🐛 Correctness & Bugs

  • Logic errors
  • Edge case handling
  • Null/undefined checks
  • Type mismatches
  • Off-by-one errors
  • Race conditions

2. 🔒 Security

  • Input validation
  • SQL injection risks
  • XSS vulnerabilities
  • Authentication/authorization flaws
  • Sensitive data exposure
  • Insecure dependencies

3. ⚡ Performance

  • Algorithm efficiency (O(n) complexity)
  • Memory leaks
  • Unnecessary computations
  • Database query optimization
  • Caching opportunities

4. 🏗️ Code Quality

  • Readability and clarity
  • Naming conventions
  • Code duplication (DRY principle)
  • Function/method length
  • Complexity (cyclomatic)
  • SOLID principles

5. ✅ Testing

  • Test coverage
  • Edge case testing
  • Unit vs integration tests
  • Test quality and clarity
  • Mock usage appropriateness

6. 📚 Documentation

  • Code comments quality
  • API documentation
  • Function/method docstrings
  • Complex logic explanation
  • README updates

Review Workflow

Step 1: Understand Context

Gather information:

  • What's the purpose of this code?
  • What problem does it solve?
  • What's the scope of changes?
  • Are there related files to consider?

For PRs:

# View PR diff
gh pr diff <PR-NUMBER>

# View PR description
gh pr view <PR-NUMBER>

# See changed files
git diff --name-only main..HEAD

Step 2: Read the Code

First pass - high level:

  • Overall structure and organization
  • Naming consistency
  • Code patterns used
  • Separation of concerns

Second pass - detailed:

  • Line-by-line logic verification
  • Edge cases and error handling
  • Performance considerations
  • Security implications

Step 3: Identify Issues

Categorize findings by severity:

🔴 Critical: Must fix before merge

  • Security vulnerabilities
  • Data loss risks
  • System crashes
  • Breaking changes

Read the full file on GitHub · 526 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 526 lines · 125 tokens per session scan A f7f5b1b1116e

Subscribe to this mod's changes

code-review-assistant is a skill published in the GitHub repository ArabelaTso/Skills-4-SE (259 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 125 tokens to every session and 2,773 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.