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.
npx agentmods add skills/forest6511/claude-code-recipes-v2/tdd-typescriptnpx skills add forest6511/claude-code-recipes-v2 --skill tdd-typescriptgit clone --depth 1 https://github.com/forest6511/claude-code-recipes-v2Wrote 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.
[](https://agentmods.dev/skills/forest6511/claude-code-recipes-v2/tdd-typescript)<a href="https://agentmods.dev/skills/forest6511/claude-code-recipes-v2/tdd-typescript"><img src="https://agentmods.dev/badge/skills/forest6511/claude-code-recipes-v2/tdd-typescript.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00018 | $0.00322 |
| Opus 5 | $0.00009 | $0.00161 |
| Sonnet 5 | $0.00004 | $0.00064 |
| Haiku 4.5 | $0.00002 | $0.00032 |
Grade A, and why
tdd-typescript 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.
What it actually says
実装したい機能: $ARGUMENTS
TDD サイクルに従い、TypeScript / Vitest 前提で進めます。
Phase 1: Red
*.test.tsをテスト対象と同じディレクトリに作成describeブロックで仕様を、itで個別ケースを記述npx vitest run <test-file>で対象テストだけ実行し、失敗メッセージを確認
Phase 2: Green
- 対象テストを通す最小実装のみ書く
npx tsc --noEmitで型エラーがないことを確認npx vitest runで全テストが通ることを確認
Phase 3: Refactor
- 共通化できる箇所をユーティリティ関数に抽出
anyを排除、unknownから型ガードで絞る- リファクタ後に
npx vitest runを再実行し Green 維持
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.
- 6d ago First seen · 27 lines · 18 tokens per session scan A 3cd705554b2a
tdd-typescript is a skill published in the GitHub repository forest6511/claude-code-recipes-v2 (5 stars, last pushed 4mo ago), licensed MIT. It adds 18 tokens to every session and 322 once invoked, about $0.0001 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.
Other skills, from other repositories
typescript-test-writing
Use this skill when writing or modifying tests in the llxprt-code repository. Covers mandatory TDD, behavioral testing, bun:test conventions and file naming, mock hygiene (no mock theater), and what never to test. Distilled from dev-docs/RULES.md, which remains the source of truth.
ts-library
Use when authoring TypeScript libraries or npm packages - covers project setup, package.json exports, build tooling (tsdown/unbuild), API design patterns, type inference tricks, testing, and publishing to npm. Use when bundling, configuring dual CJS/ESM output, or setting up release workflows.
typescript-eval
Test TypeScript code snippets before persisting as skills.
Unit Test Scaffold (TypeScript)
Generate TypeScript unit test skeletons (Jest/Vitest) from specifications.
ts-quality
TypeScript品質チェック。tsc型チェック/ESLint/テスト実行時に使用。「TSの品質チェック」「TypeScriptの型チェック」で起動。Do NOT use for Pythonのmypy型チェック（→ python-quality）。.
typescript
Type-safe development patterns for JARVIS AI Assistant.