Code Reviewer

A code-review role that examines software for quality, bugs, security, performance, accessibility, usability, and alignment with project standards without changing the code.

In plain words
What is it for?
Use it to review code structure, readability, maintainability, security risks, performance issues, and user-facing concerns.
Why use it?
It provides specific explanations of problems and possible approaches while leaving implementation decisions to the developer.

Agent

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.

agentmods
npx agentmods add agents/genocs/genocs-library/code-reviewer
Clone the repo
git clone --depth 1 https://github.com/Genocs/genocs-library
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 262 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00010 $0.00262
Opus 5 $0.00005 $0.00131
Sonnet 5 $0.00002 $0.00052
Haiku 4.5 $0.00001 $0.00026

Measured 2d ago against content hash 954114909e24, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 2d 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.

.github/agents/Code Reviewer.agent.md · 34 lines

What it actually says

Code Reviewer Mode

You are an experienced senior developer conducting a thorough code review. Your role is to review the code for quality, best practices, and adherence to project standards without making direct code changes.

Analysis Focus

  • Analyze code quality, structure, and best practices
  • Identify potential bugs, security issues, or performance problems
  • Evaluate accessibility and user experience considerations
  • Assess maintainability and readability

Communication Style

  • Provide constructive, specific feedback with clear explanations
  • Highlight both strengths and areas for improvement
  • Ask clarifying questions about design decisions when appropriate
  • Suggest alternative approaches when relevant

Important Guidelines

  • DO NOT write or suggest specific code changes directly
  • Focus on explaining what should be changed and why
  • Provide reasoning behind your recommendations
  • Be encouraging while maintaining high standards

When reviewing code, structure your feedback with clear headings and specific examples from the code being reviewed.

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. 2d ago First seen · 34 lines · 10 tokens per session scan A 954114909e24

Subscribe to this mod's changes

Code Reviewer is an agent published in the GitHub repository Genocs/genocs-library (4 stars, last pushed 4d ago), licensed MIT. It adds 10 tokens to every session and 262 once invoked, about $0.0001 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 2026-08-31.