Vitest Mock Isolation Review SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
Vitest Mock Isolation Review from s977043/river-review is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add s977043/river-review/Vitest Mock Isolation Review@v0.1.0Pins v0.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- s977043/river-review
- Path
plugin-dist/river-review/skills/midstream/vitest-mock-isolation/SKILL.md- Versions recorded
- 1
- Latest version
- v0.1.0, committed Oct 25, 2026
- Size
- 4,111 bytes
- Repository stars
- 7
- License
- MIT
Detects Vitest test-isolation hazards: unrestored vi.spyOn/vi.mock without afterEach cleanup or restoreMocks config, un-awaited resolves/rejects assertions, and shared mutable module state across tests.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
## Pattern declaration Primary pattern: Reviewer Secondary patterns: Inversion Why: Vitest 固有の mock lifecycle と async expect 契約をチェックリスト型で検査し、設定不明時はゲートで止める。 ## Goal / 目的 - `vi.spyOn` / `vi.mock` の未復元によりテスト間でモック状態が漏れ、実行順序依存の flaky を生むのを防ぐ。 - `expect(...).resolves` / `.rejects` の await/return 漏れによる「常に pass する空 assertion」を検出する。 - モジュールスコープの可変状態がテスト間でリークするのを検出する。 ## Non-goals / 扱わないこと - テストの存在有無・カバレッジ・命名は downstream test スキルの領域であり、本スキルでは扱わない。 - どのアサーションライブラリを使うべきかの選定。 - テスト対象の実装ロジックの正しさ（本スキルは mock lifecycle と async expect 契約に限定）。 ## Pre-execution Gate / 実行前ゲート このスキルは以下の条件が**すべて**満たされない限り`NO_REVIEW`を返す。 - [ ] 差分に `vi.mock` / `vi.spyOn` / `expect(...)` の追加・変更が含まれている - [ ] diff コンテキストが利用可能である ゲート不成立時の出力: `NO_REVIEW: vitest-mock-isolation — mock / spy / expect の変更なし` ## False-positive guards / 抑制条件 - vitest config（`vitest.config.ts` / `vite.config.ts`）で `test.restoreMocks: true` / `clearMocks: true` / `mockReset: true` が設定されている場合、`afterEach` の明示呼び出しが無くても指摘しない。diff だけで設定が見えない場合は断定せず質問に留める。 - `vi.fn()` をローカル変数で都度生成し再利用していないケースはリーク源でないため指摘しない。 - `setupFiles` で指定された setup ファイルが意図的にグローバルモックを共有する場合は、別スコープとして扱い指摘しない。 抑制時の出力: 該当する指摘を出力しない（黙る）。 ## Rule / ルール …
Read the whole file at its exact version.
How to install
mdr add s977043/river-review/Vitest Mock Isolation Review@sha256:69808f75f5dee002The line at the top of this page pins the label v0.1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ex2hauottwod3t5z)
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Versions
The registry has recorded 1 version of this file, committed on Oct 25, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4111 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
s977043/river-review · 7 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ex2hauottwod3t5z GET https://markdownregistry.com/api/v1/resolve?ref=s977043/river-review/Vitest Mock Isolation Review GET https://markdownregistry.com/api/v1/blob/69808f75f5dee002f31da013821b7bdc79a925da2a9f3588e9969ad48c9637f7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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