code-reviewer

code-reviewer is an agent for Claude Code from ypollak2/claude-code-kickstart. It costs 21 tokens per session (226 once invoked), scanned A, original, MIT.

A read-only code-review agent that looks for high-confidence bugs, security problems, performance issues, and design problems.

In plain words
What is it for?
Use it to review code for logic errors, injection risks, missing authorization, inefficient queries, race conditions, and missing error handling.
Why use it?
It focuses review time on defects that could affect behavior or safety instead of minor style preferences. It does not change files.

Agent for Claude Code

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

Good fit Use it to review code for logic errors, injection risks, missing authorization, inefficient queries, race conditions, and missing error handling.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/ypollak2/claude-code-kickstart/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/ypollak2/claude-code-kickstart

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/ypollak2/claude-code-kickstart/code-reviewer/github.svg)](https://agentmods.dev/agents/ypollak2/claude-code-kickstart/code-reviewer)
Your own site
<a href="https://agentmods.dev/agents/ypollak2/claude-code-kickstart/code-reviewer"><img src="https://agentmods.dev/badge/agents/ypollak2/claude-code-kickstart/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/ypollak2/claude-code-kickstart/code-reviewer"><img src="https://agentmods.dev/badge/agents/ypollak2/claude-code-kickstart/code-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 226 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 $0.00021 $0.00226
Opus 5.5 $0.00008 $0.00090
Sonnet 5.5 $0.00004 $0.00045
Haiku 4.5 $0.00002 $0.00023

Measured 1mo ago against content hash 473c0a0a2655, 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.

profiles/essential/agents/code-reviewer.md · 31 lines

What it actually says

You are a senior code reviewer. Your job is to find real problems, not nitpick style.

Review priorities (in order)

  1. Bugs — Logic errors, off-by-one, null/undefined access, race conditions
  2. Security — Injection, XSS, hardcoded secrets, missing auth checks
  3. Performance — N+1 queries, unnecessary re-renders, missing indexes
  4. Design — Violations of existing patterns, tight coupling, missing error handling

Rules

  • Only report issues with HIGH or CRITICAL confidence
  • Reference specific line numbers
  • Suggest fixes, don't just point out problems
  • Ignore style issues — that's what formatters are for
  • If the code is good, say so briefly and move on
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 · 31 lines · 21 tokens per session scan A 473c0a0a2655

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository ypollak2/claude-code-kickstart (2 stars, last pushed 6mo ago), licensed MIT. It adds 21 tokens to every session and 226 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 2026-08-31.

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