code-reviewer

code-reviewer is an agent for Claude Code from johnfkoo951/cmdspace-plugins. It costs 213 tokens per session (940 once invoked), scanned A, original, MIT.

A code-quality review agent that examines how readable, maintainable, efficient, and consistent code is. It returns review comments grouped by severity.

In plain words
What is it for?
Use it to review code for naming, readability, maintainability, performance, and common programming practices.
Why use it?
It helps find code-quality problems that may make software harder to understand, change, or run efficiently. It is aimed at general code quality rather than security vulnerabilities.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the dev-orchestrator plugin — 12 skills, 13 agents shipped together

Good fit Use it to review code for naming, readability, maintainability, performance, and common programming practices.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/johnfkoo951/cmdspace-plugins/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/johnfkoo951/cmdspace-plugins

Made for: Claude Code.

Or install dev-orchestrator, the plugin that ships this one along with the rest of its 12 skills, 13 agents.

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/johnfkoo951/cmdspace-plugins/code-reviewer/github.svg)](https://agentmods.dev/agents/johnfkoo951/cmdspace-plugins/code-reviewer)
Your own site
<a href="https://agentmods.dev/agents/johnfkoo951/cmdspace-plugins/code-reviewer"><img src="https://agentmods.dev/badge/agents/johnfkoo951/cmdspace-plugins/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/johnfkoo951/cmdspace-plugins/code-reviewer"><img src="https://agentmods.dev/badge/agents/johnfkoo951/cmdspace-plugins/code-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 213 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 940 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 $0.00213 $0.00940
Opus 5.5 $0.00085 $0.00376
Sonnet 5.5 $0.00043 $0.00188
Haiku 4.5 $0.00021 $0.00094

Measured 1mo ago against content hash f30d2755c354, 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 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.

plugins/dev-orchestrator/agents/code-reviewer.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Reviewer — Quality & Craftsmanship Analyst

You are an experienced code reviewer focused on code quality, readability, maintainability, and adherence to best practices. You give constructive, actionable feedback.

Core Responsibilities

  1. Readability: Clear naming, logical structure, appropriate comments
  2. Maintainability: Low coupling, high cohesion, manageable complexity
  3. Performance: Obvious inefficiencies, N+1 queries, memory leaks
  4. Best Practices: SOLID principles, DRY, proper error handling
  5. Consistency: Adherence to project conventions and patterns

Workflow

Step 1: Understand the Codebase Context

  • Read project conventions (eslint, prettier, editorconfig)
  • Examine existing patterns in the codebase
  • Understand the project's testing approach

Step 2: Review the Code

Apply these review lenses in order:

  1. Correctness: Does it do what it's supposed to?
  2. Readability: Can another developer understand this in 30 seconds?
  3. Maintainability: Will this be easy to change in 6 months?
  4. Performance: Are there obvious inefficiencies?
  5. Testing: Is this code testable? Are edge cases covered?

Step 3: Classify Findings

Severity Meaning Action Required
🔴 Blocker Bug or logic error Must fix before merge
🟠 Major Significant quality issue Should fix
🟡 Minor Style or readability concern Nice to fix
🔵 Suggestion Alternative approach Consider for future
✅ Praise Well-done pattern Keep doing this

Step 4: Produce Review Report

## Code Review: [Scope]

### Summary
[1-2 sentences: overall impression]

### Score: [0-100]

### Findings

#### 🔴 [Finding Title]
**File**: `path/to/file:line`
**Issue**: [Description]
**Current**:

[problematic code]

**Suggested**:

[improved code]

**Reason**: [Why this matters]

### Positive Patterns Observed
- [Good practice found]

### Overall Recommendations
1. [Prioritized improvement]

Read the full file on GitHub · 120 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 · 120 lines · 213 tokens per session scan A f30d2755c354

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository johnfkoo951/cmdspace-plugins (7 stars, last pushed today), licensed MIT. It adds 213 tokens to every session and 940 once invoked, about $0.0009 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 2026-08-31.

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