river-review-testing

river-review-testing is a skill for Claude Code from s977043/river-review. It costs 52 tokens per session (926 once invoked), scanned A, original, MIT.

A testing-review coordinator that selects checks for test presence, coverage, naming, stability, planning, and assertion quality based on the files and code that changed.

In plain words
What is it for?
Use it when adding or changing tests, changing the code those tests cover, reviewing test strategy, or handling a large change that needs all listed testing checks.
Why use it?
It combines separate testing checks and chooses the relevant ones, so a source change and a test change receive different kinds of review. It then produces a common summary format.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the river-review plugin — 138 skills, 18 commands, 5 agents, 3 hooks shipped together

Good fit Use it when adding or changing tests, changing the code those tests cover, reviewing test strategy, or handling a large change that needs all listed testing checks.

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

Any agent
npx skills add s977043/river-review --skill river-review-testing
Clone the repo
git clone --depth 1 https://github.com/s977043/river-review

Made for: Claude Code.

Or install river-review, the plugin that ships this one along with the rest of its 138 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 river-review-testing

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/s977043/river-review/river-review-testing"><img src="https://agentmods.dev/badge/skills/s977043/river-review/river-review-testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 926 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 $0.00052 $0.00926
Opus 5 $0.00026 $0.00463
Sonnet 5 $0.00010 $0.00185
Haiku 4.5 $0.00005 $0.00093

Measured 10d ago against content hash ab714db853fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

river-review-testing 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.

skills/agent-skills/river-review-testing/SKILL.md · 89 lines

What it actually says

Testing Review(テストレビュー)

テストコードの品質、網羅性、安定性を検証する。

When to Use / いつ使うか

  • テストファイルの追加・変更時
  • テスト対象コードの変更時(テストの更新漏れ検出)
  • テスト戦略の見直し時

Routing / ルーティング

キーワード スキルID 説明
カバレッジ, 網羅 coverage-gap カバレッジギャップ検出
フレーキー, 不安定 flaky-test フレーキーテストリスク
テスト有無, 存在 test-existence テスト存在確認
命名, 構造, describe test-naming テスト命名・構造
テスト観点, 計画 test-plan-review テスト観点レビュー
アサーション, 常に PASS, 恒真 test-assertion-effectiveness アサーション有効性(無効な検証)

デフォルト動作

  • テストファイルの変更 → test-naming + flaky-test + test-assertion-effectiveness
  • ソースコードの変更 → test-existence + coverage-gap
  • 大規模変更 → 全スキル実行

Execution Flow / 実行フロー

1. 変更ファイルの分類
   ├─ テストファイル → 品質チェック(命名、フレーキー)
   ├─ ソースファイル → 網羅性チェック(存在、カバレッジ)
   └─ 両方 → 全スキル実行

2. 各スキルの実行
   ├─ test-existence: テストの存在確認
   ├─ coverage-gap: カバレッジギャップ検出
   ├─ test-naming: 命名・構造検証
   ├─ flaky-test: フレーキーリスク検出
   ├─ test-plan-review: テスト観点の妥当性
   └─ test-assertion-effectiveness: アサーション有効性(常に PASS する検証)

3. 統合サマリの生成

Output Format / 出力形式

<file>:<line>: <message>
  • Finding: 何が問題か(1文)
  • Impact: 何が困るか(短く)
  • Fix: 次の一手(最小の修正案)

他スキルとの関係

スキル 関係 棲み分け
river-review-code 補完 testing は「テストの品質」、code は「プロダクションコードの品質」
river-review-security 補完 testing は「テスト網羅性」、security は「セキュリティ脆弱性」

References

  • ROUTING.md: 詳細なルーティングルール
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 89 lines · 52 tokens per session scan A ab714db853fc

Subscribe to this mod's changes

river-review-testing is a skill published in the GitHub repository s977043/river-review (3 stars, last pushed today), licensed MIT. It adds 52 tokens to every session and 926 once invoked, about $0.0003 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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