code-reviewer

code-reviewer is an agent for Claude Code from Houseofmvps/ultraship. It costs 234 tokens per session (506 once invoked), scanned A, original, MIT.

A code-review agent that checks recently changed files against the project plan and coding standards. Code review is a second look for bugs, security risks, missing tests, and other problems before work is considered complete.

In plain words
What is it for?
Use it after completing a major project step, such as user authentication, to review the changed files and report specific issues with file locations and suggested fixes.
Why use it?
It catches issues in a finished piece of work while the changes are still easy to understand and fix. It also separates urgent problems from less important ones.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

Part of the ultraship plugin — 45 skills, 16 commands, 13 agents, 3 hooks, 2 MCP servers shipped together

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/houseofmvps/ultraship/code-reviewer
Clone the repo
git clone --depth 1 https://github.com/Houseofmvps/ultraship

Made for: Claude Code.

Or install ultraship, the plugin that ships this one along with the rest of its 45 skills, 16 commands, 13 agents, 3 hooks, 2 MCP servers.

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/houseofmvps/ultraship/code-reviewer.svg)](https://agentmods.dev/agents/houseofmvps/ultraship/code-reviewer)
Your own site
<a href="https://agentmods.dev/agents/houseofmvps/ultraship/code-reviewer"><img src="https://agentmods.dev/badge/agents/houseofmvps/ultraship/code-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 234 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 506 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 5.1 $0.00234 $0.00506
Opus 5 $0.00117 $0.00253
Sonnet 5 $0.00047 $0.00101
Haiku 4.5 $0.00023 $0.00051

Measured 6d ago against content hash 3255954b154a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 6d 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.

agents/code-reviewer.md · 40 lines

What it actually says

You are a Senior Code Reviewer. Review completed project steps against plans and coding standards.

Approach

Focus on changed files only — use git diff to identify what changed, then read only those files (max 8).

Review Checklist

For each changed file, check in ONE pass:

  1. Plan alignment — Does the implementation match what was planned? Missing features? Extra features?
  2. Correctness — Bugs, edge cases, error handling, type safety
  3. Security — Injection, XSS, secrets, unsafe patterns
  4. Tests — Are changes tested? Do tests verify behavior (not just existence)?

Skip these (not worth timeout risk):

  • Documentation completeness
  • SOLID principle analysis
  • Scalability assessment
  • Style preferences

Output

Categorize issues as: Critical (must fix) | Important (should fix) | Minor (nice to have)

For each issue: file:line, what's wrong, how to fix. Be concise — one sentence per issue.

Report max 10 issues. If more exist, report the 10 most severe.

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. 6d ago First seen · 40 lines · 234 tokens per session scan A 3255954b154a

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository Houseofmvps/ultraship (121 stars, last pushed 2mo ago), licensed MIT. It adds 234 tokens to every session and 506 once invoked, about $0.0012 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 2026-08-30.

Related

Other agents, from other repositories

upload-workflow-agent

This agent should be used when the user asks to "implement user uploads", "set up direct creator upload", "configure image uploads", "build upload form", "create upload endpoint", or needs complete frontend + backend upload workflow for Cloudflare Images.

secondsky/claude-skills · 55 tokens

workers-performance-analyzer

Performance analysis and optimization agent for Cloudflare Workers. Analyzes bundle size, caching, memory usage, and CPU time. Provides prioritized recommendations and asks before applying each optimization (interactive mode).

secondsky/claude-skills · 38 tokens

d1-query-optimizer

Performance analysis agent that identifies slow queries, missing indexes, and optimization opportunities in Cloudflare D1 databases using metrics, insights, and query plan analysis. Use when encountering slow queries, high latency, or performance degradation.

secondsky/claude-skills · 49 tokens

bun-performance-analyzer

Use this agent when the user wants to optimize performance, analyze bottlenecks, or improve efficiency of their Bun application. Examples.

secondsky/claude-skills · 0 tokens

tasks-agent

Expert development lead that converts technical designs into actionable, incremental coding tasks for implementation.

NikiforovAll/claude-code-rules · 18 tokens

implementation-agent

Strict implementation agent that executes coding tasks following requirements exactly without improvisation, asking for clarification when needed.

NikiforovAll/claude-code-rules · 22 tokens