code-review

code-review is a skill for Claude Code from muyen/vibe-to-prod. It costs 27 tokens per session (491 once invoked), scanned A, original, MIT.

An automatic code review process that checks significant changes for security, performance, design, and consistency with project patterns. It also checks API and platform-specific conventions.

In plain words
What is it for?
Use it to review new features, handlers, authentication, payments, security-sensitive code, and larger edits.
Why use it?
It helps catch unsafe input handling, missing access checks, inefficient database use, and incorrect project patterns before changes are merged.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions CLAUDE.md.

Part of the vibe-to-prod-skills plugin — 8 skills shipped together

Good fit Use it to review new features, handlers, authentication, payments, security-sensitive code, and larger edits.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/muyen/vibe-to-prod/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 muyen/vibe-to-prod --skill code-review
Clone the repo
git clone --depth 1 https://github.com/muyen/vibe-to-prod

Made for: Claude Code.

Or install vibe-to-prod-skills, the plugin that ships this one along with the rest of its 8 skills.

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/muyen/vibe-to-prod/code-review/github.svg)](https://agentmods.dev/skills/muyen/vibe-to-prod/code-review)
Your own site
<a href="https://agentmods.dev/skills/muyen/vibe-to-prod/code-review"><img src="https://agentmods.dev/badge/skills/muyen/vibe-to-prod/code-review/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

Your own site · 80×15
<a href="https://agentmods.dev/skills/muyen/vibe-to-prod/code-review"><img src="https://agentmods.dev/badge/skills/muyen/vibe-to-prod/code-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 491 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.
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 $0.00027 $0.00491
Opus 5.5 $0.00011 $0.00196
Sonnet 5.5 $0.00005 $0.00098
Haiku 4.5 $0.00003 $0.00049

Measured 12d ago against content hash ffd7eca4de0e, 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 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 12d 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.

.claude/skills/code-review/SKILL.md · 88 lines

What it actually says

Code Review Skill

Automatically reviews code quality when significant changes are made.

When to Activate

This skill should activate when:

  • User writes or modifies 50+ lines of code
  • User implements a new feature or handler
  • User asks for code review or feedback
  • Changes touch authentication, payments, or security

Review Dimensions

1. Security (Critical)

  • No hardcoded secrets or credentials
  • Input validation on all user inputs
  • SQL injection / NoSQL injection prevention
  • XSS prevention in any output
  • Auth checks on protected endpoints

2. Project Patterns (Critical)

  • Generated types used (not map[string]interface{})
  • Routes registered properly
  • Response schemas defined correctly
  • OpenAPI spec updated for API changes

3. Performance

  • No N+1 queries
  • Appropriate indexes for queries
  • Reasonable pagination limits
  • No unnecessary data fetching

4. Architecture

  • Single responsibility principle
  • Proper error handling
  • Appropriate logging
  • Testable design

5. Platform Specific

Backend (Go)

  • Uses Echo framework patterns
  • Proper middleware usage
  • Structured logging with Zap

iOS (Swift)

  • SwiftUI best practices
  • Source files < 400 lines
  • Proper state management

Android (Kotlin)

  • Jetpack Compose patterns
  • Proper DI configuration
  • Feature parity with iOS

Web (TypeScript)

  • Next.js conventions followed
  • Proper typing (no any)
  • React best practices

Output Format

## Code Review Summary

### Critical Issues
- [List any blocking issues]

### Warnings
- [List non-blocking concerns]

### Suggestions
- [List optional improvements]

### Pattern Compliance
- [Check against CLAUDE.md rules]

Reference

See .claude/commands/code-review.md for detailed review criteria.

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. 12d ago First seen · 88 lines · 27 tokens per session scan A ffd7eca4de0e

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository muyen/vibe-to-prod (34 stars, last pushed 6mo ago), licensed MIT. It adds 27 tokens to every session and 491 once invoked, about $0.0001 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 2026-10-04.

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