review

review is a command for Claude Code, GitHub Copilot from s977043/river-review. It costs 12 tokens per session (212 once invoked), scanned A, original, MIT.

A code-review command that examines a change against requirements, failure cases, security, maintainability, tests, and documentation. It writes findings in Japanese with a severity label from Critical to Info.

In plain words
What is it for?
Use it to review a proposed change and produce structured findings from the supplied input.
Why use it?
It gives a consistent checklist for spotting defects and omissions that a quick review may miss.

Command for Claude CodeGitHub Copilot

Written for Claude Code and GitHub Copilot: shipped in a Claude Code plugin, but also a Copilot chat mode or prompt. Also seen: agent in frontmatter.

Part of the river-review plugin — 139 skills, 18 commands, 5 agents, 3 hooks shipped together

Good fit Use it to review a proposed change and produce structured findings from the supplied input.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/s977043/river-review/review
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/s977043/river-review

Made for: Claude Code, GitHub Copilot.

Or install river-review, the plugin that ships this one along with the rest of its 139 skills, 18 commands, 5 agents, 3 hooks.

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 review

README.md
[![agentmods](https://agentmods.dev/badge/commands/s977043/river-review/review/github.svg)](https://agentmods.dev/commands/s977043/river-review/review)
Your own site
<a href="https://agentmods.dev/commands/s977043/river-review/review"><img src="https://agentmods.dev/badge/commands/s977043/river-review/review/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 review

Your own site · 80×15
<a href="https://agentmods.dev/commands/s977043/river-review/review"><img src="https://agentmods.dev/badge/commands/s977043/river-review/review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 212 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 $0.00012 $0.00212
Opus 5.5 $0.00005 $0.00085
Sonnet 5.5 $0.00002 $0.00042
Haiku 4.5 $0.00001 $0.00021

Measured 1mo ago against content hash 36698e55a96b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

review 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.

.github/prompts/review.prompt.md · 25 lines

What it actually says

この変更をレビューしてください。レビューは日本語で、指摘は「重要度(Critical/Major/Minor/Info)」付きで書いてください。

参照(必要に応じて開く):

観点:

  • 仕様/要件の満たし方、壊れ方(境界条件、エラー時)
  • セキュリティ・プライバシー・依存関係リスク
  • 可読性、保守性、将来の拡張
  • テスト(不足、過剰、観点漏れ)
  • ドキュメントの更新漏れ

対象: ${input}

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 · 25 lines · 12 tokens per session scan A 36698e55a96b

Subscribe to this mod's changes

review is a command published in the GitHub repository s977043/river-review (7 stars, last pushed yesterday), licensed MIT. It adds 12 tokens to every session and 212 once invoked, about $0.0000 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 2026-09-06.