code-review

code-review is a skill for Claude Code from KarmaloopAI/Jiva. It costs 61 tokens per session (865 once invoked), scanned A, original, MIT.

A structured review of a codebase for bugs, security risks, performance problems, style issues, and common development mistakes.

In plain words
What is it for?
Use it to review code before merging, investigate possible bugs, check security and performance, and receive suggestions for clearer or more maintainable code.
Why use it?
It helps find problems that may be missed during ordinary development, such as unsafe input handling, slow database use, memory leaks, or incorrect logic.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the code-reviewer plugin — 1 skill, 1 MCP server shipped together

Good fit Use it to review code before merging, investigate possible bugs, check security and performance, and receive suggestions for clearer or more maintainable code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/karmaloopai/jiva/code-review
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 KarmaloopAI/Jiva --skill code-review
Clone the repo
git clone --depth 1 https://github.com/KarmaloopAI/Jiva

Made for: Claude Code.

Or install code-reviewer, the plugin that ships this one along with the rest of its 1 skill, 1 MCP server.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/karmaloopai/jiva/code-review.svg)](https://agentmods.dev/skills/karmaloopai/jiva/code-review)
Your own site
<a href="https://agentmods.dev/skills/karmaloopai/jiva/code-review"><img src="https://agentmods.dev/badge/skills/karmaloopai/jiva/code-review.svg" alt="Measured on agentmods" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 865 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 $0.00061 $0.00865
Opus 5 $0.00030 $0.00432
Sonnet 5 $0.00012 $0.00173
Haiku 4.5 $0.00006 $0.00086

Measured 8d ago against content hash 8ac1cfcb1e48, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

code-review 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 8d 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.

examples/personas/code-reviewer/skills/code-review/SKILL.md · 139 lines

How it starts

The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review Skill

Overview

Perform comprehensive code reviews analyzing bugs, style issues, performance bottlenecks, security vulnerabilities, and adherence to best practices.

Workflow

1. Scan Code Structure

  • Use view tool to read all relevant files in the codebase
  • Identify file types, frameworks, and languages used
  • Map dependencies and module relationships

2. Analyze Code Quality

Check for the following categories:

Bugs & Logic Errors:

  • Null/undefined handling
  • Off-by-one errors
  • Race conditions
  • Memory leaks
  • Incorrect algorithm implementation

Security Issues:

  • SQL injection vulnerabilities
  • XSS vulnerabilities
  • Authentication/authorization flaws
  • Sensitive data exposure
  • Unsafe dependencies

Performance Problems:

  • Inefficient algorithms (O(n²) where O(n) possible)
  • Unnecessary database queries
  • Memory overuse
  • Blocking operations
  • Missing caching

Code Style:

  • Naming conventions
  • Code formatting inconsistencies
  • Magic numbers/strings
  • Dead code
  • Overly complex functions

Best Practices:

  • DRY (Don't Repeat Yourself) violations
  • SOLID principles adherence
  • Error handling patterns
  • Testing coverage
  • Documentation quality

3. Categorize Findings

Group issues by:

  • Critical: Security vulnerabilities, data loss risks
  • High: Bugs that cause crashes/errors
  • Medium: Performance issues, maintainability problems
  • Low: Style issues, minor improvements

4. Provide Solutions

For each issue:

  • Explain WHY it's a problem
  • Show the problematic code snippet
  • Provide a SPECIFIC fix with code examples
  • Explain the benefits of the fix

5. Generate Report

Structure the output as:

# Code Review Report

## Summary
- Total files reviewed: X
- Issues found: Y (Z critical, W high, V medium, U low)

## Critical Issues
[List critical issues with fixes]

## High Priority Issues
[List high priority issues with fixes]

## Medium Priority Issues
[List medium priority issues with fixes]

## Low Priority Issues
[List low priority issues with fixes]

## Strengths
[Mention good practices found in the code]

## Recommendations
[Overall suggestions for improvement]

Read the full file on GitHub · 139 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 139 lines · 61 tokens per session scan A 8ac1cfcb1e48

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository KarmaloopAI/Jiva (35 stars, last pushed 23d ago), licensed MIT. It adds 61 tokens to every session and 865 once invoked, about $0.0003 per session on Opus 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.

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