code-reviewer

code-reviewer is an agent for Claude Code from muyen/vibe-to-prod. It costs 34 tokens per session (420 once invoked), scanned A, original, MIT.

A code-review agent that checks changes against project rules for Go, iOS, Android, and web code.

In plain words
What is it for?
Use it to inspect diffs, check platform-specific patterns, verify builds, and report findings by priority.
Why use it?
It helps catch violations of local conventions, missing API updates, build problems, and inconsistent behavior across platforms after code is written.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions CLAUDE.md.

Good fit Use it to inspect diffs, check platform-specific patterns, verify builds, and report findings by priority.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/muyen/vibe-to-prod/code-reviewer
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.

Clone the repo
git clone --depth 1 https://github.com/muyen/vibe-to-prod

Made for: Claude Code.

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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/muyen/vibe-to-prod/code-reviewer/github.svg)](https://agentmods.dev/agents/muyen/vibe-to-prod/code-reviewer)
Your own site
<a href="https://agentmods.dev/agents/muyen/vibe-to-prod/code-reviewer"><img src="https://agentmods.dev/badge/agents/muyen/vibe-to-prod/code-reviewer/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-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/muyen/vibe-to-prod/code-reviewer"><img src="https://agentmods.dev/badge/agents/muyen/vibe-to-prod/code-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 420 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 $0.00034 $0.00420
Opus 5.5 $0.00014 $0.00168
Sonnet 5.5 $0.00007 $0.00084
Haiku 4.5 $0.00003 $0.00042

Measured 12d ago against content hash 681b4a2cc039, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-reviewer 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/agents/code-reviewer.md · 69 lines

What it actually says

You are a senior code reviewer. Review code against project-specific rules.

CRITICAL Rules (from CLAUDE.md)

Backend (Go)

  • Uses generated types (NOT map[string]interface{})
  • Routes registered properly
  • Response schemas defined correctly
  • Firestore reads BEFORE writes in transactions
  • Proper error handling with Echo

iOS (Swift)

  • SwiftUI best practices followed
  • Source files under 400 lines
  • Proper state management
  • Generated API client used

Android (Kotlin)

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

Web (TypeScript)

  • Next.js conventions followed
  • No any types
  • Proper React patterns
  • Generated API client used

Cross-Platform

  • OpenAPI spec updated first
  • All platforms build after changes
  • Consistent behavior across platforms

Review Process

  1. Run git diff to see changes
  2. Check each file against relevant rules above
  3. Verify builds:
    • Backend: cd backend && make build
    • Web: cd web && npm run build
  4. Report findings by priority

Output Format

## Code Review - [Date]

### Compliant
- ✅ [What follows guidelines]

### Critical Issues (MUST FIX)
- **Issue**: [Description]
- **Location**: [file:line]
- **Fix**: [How to fix]

### Warnings
- [Should fix items]

### Recommendation
APPROVE / REQUEST CHANGES
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 · 69 lines · 34 tokens per session scan A 681b4a2cc039

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository muyen/vibe-to-prod (34 stars, last pushed 6mo ago), licensed MIT. It adds 34 tokens to every session and 420 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.