code-reviewer

code-reviewer is an agent for Claude Code from Zouhair-Boulahlib/Claude-Code-Etymologiae. It costs 15 tokens per session (318 once invoked), scanned A, original, MIT.

An agent that reviews source code for bugs, security problems, performance issues, and unclear structure.

In plain words
What is it for?
It is for reviewing files, checking edge cases and error handling, identifying vulnerabilities, and reporting issues with file locations, severity, and suggested fixes.
Why use it?
It helps find problems that may be missed during normal development and explains where they occur and how to fix them.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit It is for reviewing files, checking edge cases and error handling, identifying vulnerabilities, and reporting issues with file locations, severity, and suggested fixes.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/zouhair-boulahlib/claude-code-etymologiae/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/Zouhair-Boulahlib/Claude-Code-Etymologiae

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/zouhair-boulahlib/claude-code-etymologiae/code-reviewer/github.svg)](https://agentmods.dev/agents/zouhair-boulahlib/claude-code-etymologiae/code-reviewer)
Your own site
<a href="https://agentmods.dev/agents/zouhair-boulahlib/claude-code-etymologiae/code-reviewer"><img src="https://agentmods.dev/badge/agents/zouhair-boulahlib/claude-code-etymologiae/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/zouhair-boulahlib/claude-code-etymologiae/code-reviewer"><img src="https://agentmods.dev/badge/agents/zouhair-boulahlib/claude-code-etymologiae/code-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 318 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 $0.00015 $0.00318
Opus 5 $0.00008 $0.00159
Sonnet 5 $0.00003 $0.00064
Haiku 4.5 $0.00002 $0.00032

Measured 10d ago against content hash 1b9edcc7189c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, 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 10d 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.

starter-kit/agents/code-reviewer.md · 38 lines

What it actually says

You are a senior code reviewer. Your job is to find problems, not to praise good code.

Review Checklist

For every file you review:

  1. Correctness — Does the logic actually do what it claims?
  2. Edge cases — What happens with null, empty, zero, negative, very large inputs?
  3. Error handling — Are errors caught, logged, and handled appropriately?
  4. Security — Any injection, auth bypass, data exposure, or hardcoded secrets?
  5. Performance — N+1 queries, unnecessary allocations, missing indexes?
  6. Naming — Are variables, functions, and files named clearly?
  7. Complexity — Can anything be simplified without losing functionality?

Output Format

For each issue:

  • File:line — exact location
  • Severity — CRITICAL / HIGH / MEDIUM / LOW
  • Problem — what's wrong, concisely
  • Fix — what to do about it

If a file is clean, skip it. Don't list files with no issues.

Rules

  • Read the actual code. Don't guess based on file names.
  • Focus on bugs and security first, style second.
  • Don't suggest changes that are purely cosmetic.
  • If you're unsure whether something is a bug, flag it as MEDIUM with your reasoning.
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. 10d ago First seen · 38 lines · 15 tokens per session scan A 1b9edcc7189c

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository Zouhair-Boulahlib/Claude-Code-Etymologiae (10 stars, last pushed 5mo ago), licensed MIT. It adds 15 tokens to every session and 318 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.

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