typescript-ultimate

Category: Development & Coding | Uploader: konamgil | Downloads: 0 | Version: v1.0（Latest）

End-to-end TypeScript engineering skill for designing, implementing, reviewing, and refactoring production-grade TS codebases. Use when tasks involve TypeScript architecture, advanced typing, strict safety, API/schema typing, React/Node/Nest/Express/Fastify patterns, testing, linting, migration, or code review in .ts/.tsx projects.

Changelog: Source: GitHub https://github.com/konamgil/mandu

Directory Structure

Current level: tree/main/docs/skills/typescript-ultimate/

📁 corpus/
- 📁 raw/
  - 📄 0xbigboss__claude-code__typescript-best-practices.html 138.4 KB
  - 📄 alinaqi__claude-bootstrap__typescript.html 105.1 KB
  - 📄 asyrafhussin__agent-skills__typescript-react-patterns.html 123.4 KB
  - 📄 bmad-labs__skills__typescript-e2e-testing.html 131.7 KB
  - 📄 bobmatnyc__claude-mpm-skills__jest-typescript.html 479.6 KB
  - 📄 bobmatnyc__claude-mpm-skills__nodejs-backend-typescript.html 450.7 KB
  - 📄 bobmatnyc__claude-mpm-skills__trpc-type-safety.html 873.9 KB
  - 📄 bobmatnyc__claude-mpm-skills__typescript-core.html 104.2 KB
  - 📄 cexll__myclaude__prototype-prompt-generator.html 99.6 KB
  - 📄 dalestudy__skills__typescript.html 62.3 KB
  - 📄 davila7__claude-code-templates__openapi-to-typescript.html 123.4 KB
  - 📄 davila7__claude-code-templates__typescript-expert.html 143.4 KB
  - 📄 dotneet__claude-code-marketplace__typescript-react-reviewer.html 97.1 KB
  - 📄 giuseppe-trisciuoglio__developer-kit__typescript-docs.html 236.5 KB
  - 📄 jeffallan__claude-skills__typescript-pro.html 41.8 KB
  - 📄 jezweb__claude-skills__typescript-mcp.html 268.5 KB
  - 📄 jgeurts__eslint-config-decent__enforcing-typescript-standards.html 174.6 KB
  - 📄 jwynia__agent-skills__typescript-best-practices.html 130.5 KB
  - 📄 lobehub__lobe-chat__typescript.html 38.1 KB
  - 📄 lobehub__lobehub__typescript.html 38.0 KB
  - 📄 makfly__superpowers-symfony__symfony-form-types-validation.html 32.5 KB
  - 📄 martinholovsky__claude-skills-generator__typescript-expert.html 333.9 KB
  - 📄 metabase__metabase__typescript-review.html 33.4 KB
  - 📄 metabase__metabase__typescript-write.html 32.7 KB
  - 📄 mindrally__skills__deno-typescript.html 131.0 KB
  - 📄 mindrally__skills__expo-react-native-typescript.html 38.8 KB
  - 📄 mindrally__skills__express-typescript.html 145.8 KB
  - 📄 mindrally__skills__fastify-typescript.html 105.8 KB
  - 📄 mindrally__skills__nestjs-clean-typescript.html 37.1 KB
  - 📄 mindrally__skills__nextjs-react-typescript.html 37.4 KB
  - 📄 mindrally__skills__nextjs-typescript-tailwindcss-supabase.html 36.3 KB
  - 📄 mindrally__skills__nuxtjs-vue-typescript.html 38.4 KB
  - 📄 mindrally__skills__optimized-nextjs-typescript.html 37.6 KB
  - 📄 mindrally__skills__typeorm.html 299.3 KB
  - 📄 mindrally__skills__vuejs-typescript-best-practices.html 38.1 KB
  - 📄 openrouterteam__agent-skills__openrouter-typescript-sdk.html 431.5 KB
  - 📄 pproenca__dot-skills__typescript.html 70.4 KB
  - 📄 prowler-cloud__prowler__typescript.html 67.2 KB
  - 📄 rivet-dev__skills__rivetkit-typescript.html 623.0 KB
  - 📄 sickn33__antigravity-awesome-skills__javascript-typescript-typescript-scaffold.html 128.7 KB
  - 📄 sickn33__antigravity-awesome-skills__typescript-advanced-types.html 36.3 KB
  - 📄 sickn33__antigravity-awesome-skills__typescript-expert.html 143.6 KB
  - 📄 sickn33__antigravity-awesome-skills__typescript-pro.html 38.0 KB
  - 📄 siviter-xyz__dot-agent__typescript.html 45.9 KB
  - 📄 skillcreatorai__ai-agent-skills__javascript-typescript.html 93.2 KB
  - 📄 softaworks__agent-toolkit__openapi-to-typescript.html 123.2 KB
  - 📄 typefully__agent-skills__typefully.html 113.6 KB
  - 📄 wshobson__agents__python-type-safety.html 184.7 KB
  - 📄 wshobson__agents__typescript-advanced-types.html 367.9 KB
  - 📄 zhanghandong__rust-skills__m05-type-driven.html 62.6 KB
- 📁 text/
  - 📄 0xbigboss__claude-code__typescript-best-practices.txt 8.7 KB
  - 📄 alinaqi__claude-bootstrap__typescript.txt 4.9 KB
  - 📄 asyrafhussin__agent-skills__typescript-react-patterns.txt 6.8 KB
  - 📄 bmad-labs__skills__typescript-e2e-testing.txt 13.5 KB
  - 📄 bobmatnyc__claude-mpm-skills__jest-typescript.txt 24.3 KB
  - 📄 bobmatnyc__claude-mpm-skills__nodejs-backend-typescript.txt 21.7 KB
  - 📄 bobmatnyc__claude-mpm-skills__trpc-type-safety.txt 46.0 KB
  - 📄 bobmatnyc__claude-mpm-skills__typescript-core.txt 7.6 KB
  - 📄 cexll__myclaude__prototype-prompt-generator.txt 19.4 KB
  - 📄 dalestudy__skills__typescript.txt 3.9 KB
  - 📄 davila7__claude-code-templates__openapi-to-typescript.txt 7.0 KB
  - 📄 davila7__claude-code-templates__typescript-expert.txt 12.9 KB
  - 📄 dotneet__claude-code-marketplace__typescript-react-reviewer.txt 6.0 KB
  - 📄 giuseppe-trisciuoglio__developer-kit__typescript-docs.txt 19.5 KB
  - 📄 jeffallan__claude-skills__typescript-pro.txt 3.2 KB
  - 📄 jezweb__claude-skills__typescript-mcp.txt 19.1 KB
  - 📄 jgeurts__eslint-config-decent__enforcing-typescript-standards.txt 12.5 KB
  - 📄 jwynia__agent-skills__typescript-best-practices.txt 8.9 KB
  - 📄 lobehub__lobe-chat__typescript.txt 1.9 KB
  - 📄 lobehub__lobehub__typescript.txt 2.0 KB
  - 📄 makfly__superpowers-symfony__symfony-form-types-validation.txt 1.2 KB
  - 📄 martinholovsky__claude-skills-generator__typescript-expert.txt 19.4 KB
  - 📄 metabase__metabase__typescript-review.txt 731 B
  - 📄 metabase__metabase__typescript-write.txt 497 B
  - 📄 mindrally__skills__deno-typescript.txt 7.3 KB
  - 📄 mindrally__skills__expo-react-native-typescript.txt 2.3 KB
  - 📄 mindrally__skills__express-typescript.txt 7.4 KB
  - 📄 mindrally__skills__fastify-typescript.txt 6.1 KB
  - 📄 mindrally__skills__nestjs-clean-typescript.txt 1.8 KB
  - 📄 mindrally__skills__nextjs-react-typescript.txt 2.0 KB
  - 📄 mindrally__skills__nextjs-typescript-tailwindcss-supabase.txt 1.7 KB
  - 📄 mindrally__skills__nuxtjs-vue-typescript.txt 2.3 KB
  - 📄 mindrally__skills__optimized-nextjs-typescript.txt 2.0 KB
  - 📄 mindrally__skills__typeorm.txt 13.4 KB
  - 📄 mindrally__skills__vuejs-typescript-best-practices.txt 2.3 KB
  - 📄 openrouterteam__agent-skills__openrouter-typescript-sdk.txt 27.9 KB
  - 📄 pproenca__dot-skills__typescript.txt 6.1 KB
  - 📄 prowler-cloud__prowler__typescript.txt 2.3 KB
  - 📄 rivet-dev__skills__rivetkit-typescript.txt 34.0 KB
  - 📄 sickn33__antigravity-awesome-skills__javascript-typescript-typescript-scaffold.txt 8.2 KB
  - 📄 sickn33__antigravity-awesome-skills__typescript-advanced-types.txt 1.5 KB
  - 📄 sickn33__antigravity-awesome-skills__typescript-expert.txt 12.9 KB
  - 📄 sickn33__antigravity-awesome-skills__typescript-pro.txt 2.2 KB
  - 📄 siviter-xyz__dot-agent__typescript.txt 4.4 KB
  - 📄 skillcreatorai__ai-agent-skills__javascript-typescript.txt 3.2 KB
  - 📄 softaworks__agent-toolkit__openapi-to-typescript.txt 7.0 KB
  - 📄 typefully__agent-skills__typefully.txt 17.3 KB
  - 📄 wshobson__agents__python-type-safety.txt 10.6 KB
  - 📄 wshobson__agents__typescript-advanced-types.txt 16.4 KB
  - 📄 zhanghandong__rust-skills__m05-type-driven.txt 3.9 KB
- 📄 index.tsv 2.4 KB
📁 references/
- 📄 01-compiler-and-quality-baseline.md 750 B
- 📄 02-advanced-type-system.md 971 B
- 📄 03-api-and-schema-typing.md 853 B
- 📄 04-framework-playbooks.md 865 B
- 📄 05-data-and-runtime-boundaries.md 753 B
- 📄 06-testing-types-and-behavior.md 741 B
- 📄 07-code-review-and-standards.md 837 B
- 📄 source-corpus-index.md 3.5 KB
📁 scripts/
- 📄 refresh_corpus.py 2.7 KB
📄 SKILL.md 3.2 KB

SKILL.md

---
name: typescript-ultimate
description: End-to-end TypeScript engineering skill for designing, implementing, reviewing, and refactoring production-grade TS codebases. Use when tasks involve TypeScript architecture, advanced typing, strict safety, API/schema typing, React/Node/Nest/Express/Fastify patterns, testing, linting, migration, or code review in .ts/.tsx projects.
---

# TypeScript Ultimate

Execute TypeScript work with maximum safety, clarity, and maintainability.

## Workflow

1. Identify context first
   - Determine runtime: Node / Browser / React / Next / Nest / Express / Fastify / Deno / RN.
   - Determine strictness target: incremental vs strict-by-default.
   - Determine risk class: API contract, persistence, auth, payments, migrations are high-risk.

2. Lock quality baseline before coding
   - Apply strict compiler profile from `references/01-compiler-and-quality-baseline.md`.
   - Apply lint and ordering rules from `references/07-code-review-and-standards.md`.
   - Define typed boundaries for IO and external systems.

3. Model domain types first
   - Design discriminated unions for state and protocol variants.
   - Use utility/mapped/conditional/template-literal types where they reduce duplication.
   - Keep types readable; split deeply complex helpers into named aliases.

4. Implement with type-safe boundaries
   - Parse unknown inputs to validated domain types.
   - Keep `any` out of core paths.
   - Encode API request/response contracts in types.

5. Verify behavior + type contracts
   - Add runtime tests + type tests (`tsc --noEmit`, or expect-type style checks).
   - Add edge-case checks for nullability, narrowing, and exhaustive handling.

6. Review against production checklist
   - Use `references/07-code-review-and-standards.md` review rubric.
   - Prefer smallest safe change that improves type confidence.

## Mandatory Rules

- Prefer `unknown` over `any`.
- Prefer narrowing/type guards over assertions (`as`).
- Use discriminated unions for state machines and branching models.
- Keep imports organized and type-only imports explicit (`import type`).
- Use `const` by default; avoid mutation when practical.
- Use exhaustive checks (`never`) for union switches.
- Keep compiler+lint green before completion.

## Reference Map

- Compiler/strict baseline: `references/01-compiler-and-quality-baseline.md`
- Type system patterns: `references/02-advanced-type-system.md`
- API/schema/contracts: `references/03-api-and-schema-typing.md`
- Framework-specific patterns: `references/04-framework-playbooks.md`
- Data/persistence/runtime boundaries: `references/05-data-and-runtime-boundaries.md`
- Testing strategy: `references/06-testing-types-and-behavior.md`
- Code review standards: `references/07-code-review-and-standards.md`
- Source corpus index (downloaded posts): `references/source-corpus-index.md`

## Execution Guidance

- For small fixes: apply minimal patch + enforce local invariants.
- For medium changes: establish/repair types first, then implementation.
- For large migrations: convert module-by-module, maintain compatibility adapters, and increase strictness in stages.
- If runtime/library constraints conflict with strict typing, document trade-offs and isolate unsafe edges.

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typescript-ultimate

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