TypeScript Strictness Guard SKILL.md skillA
TypeScript Strictness Guard 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/TypeScript Strictness Guard@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
skills/midstream/typescript-strict/SKILL.md- Versions recorded
- 2
- Latest version
- v0.1.0, committed Jun 29, 2026
- First version recorded
- Jun 29, 2026
- Size
- 2,965 bytes
- Repository stars
- 7
- License
- MIT
Enforce TypeScript strictness by reducing any/unsafe assertions and ensuring null handling.
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: TypeScriptコードの差分からany/型アサーションの乱用をレビューし、型安全性の低下シナリオを逆照射する。
## Rule / ルール
- `any` の使用や無制限の型アサーションを最小化する
- null/undefined を明示的に扱い、ガード節を追加する
- 型の流れが不明な箇所には型エイリアス/インターフェースを付ける
## Heuristics
- `any`, `as unknown as`, `as any` などが新たに追加されている
- 非 null アサーション `!` が多用されている
- 関数戻り値や外部入力が `any` や `object` で受け取られている
## Good / Bad Examples
- Good: `type User = { id: string; name: string };`
- Bad: `const user: any = getUser();`
- Good: `if (!value) return;` で null をガード
- Bad: `value!.doSomething()` で非 null アサーション連発
## Actions / 改善案
- `unknown` で受けて型ガード関数を追加する
- null チェックをガード節で追加し、早期 return を使う
- 型アサーションの代わりに型定義や Zod 等でスキーマを導入する
## Non-goals / 扱わないこと
- プロジェクト全体の strict 設定を変更する提案。
- 既存ライブラリの型定義の不備を修正する。
- 型以外のスタイル/命名のレビュー。
## 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TypeScriptファイル（`*.ts` または `*.tsx`）が含まれている
- [ ] inputContextにdiffが含まれている
ゲート不成立時の出力: `NO_REVIEW: typescript-strict — TypeScriptファイルの差分がない`
## False-positive guards / 抑制条件
- `any` が一時的な実験コードで、明示的なコメントがある。
- 型定義が別ファイルにあり、変更範囲では判定できない。
## 評価指標（Evaluation）
- 合格基準: 指摘が差分に紐づき、根拠と次アクションが説明されている。
…Read the whole file at its exact version.
How to install
mdr add s977043/river-review/TypeScript Strictness Guard@sha256:f237cbf6f4944ce4The 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_rdge2ovcxseccwcs)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Jun 29, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.1.0 latest | 2026-06-29 | 45e66bc | 2,965 B | A | view · diff |
| v0.1.0 | 2026-06-29 | b988700 | 2,982 B | A | view |
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 (2965 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_rdge2ovcxseccwcs GET https://markdownregistry.com/api/v1/resolve?ref=s977043/river-review/TypeScript Strictness Guard GET https://markdownregistry.com/api/v1/blob/f237cbf6f4944ce4706397aa0fdcf7c4c27f3aa90399154e9512a97687ab7506
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.
More from s977043/river-review
Every file in s977043/river-review