dev-typescript-patterns SKILL.md skillA
dev-typescript-patterns from joaoguirunas/team-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add joaoguirunas/team-os/dev-typescript-patterns@v1.1Pins v1.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- joaoguirunas/team-os
- Path
.claude/skills/dev-typescript-patterns/SKILL.md- Versions recorded
- 2
- Latest version
- v1.1, committed Sep 26, 2026
- First version recorded
- Apr 23, 2026
- Size
- 6,127 bytes
- Repository stars
- 5
- License
- MIT
Padrões idiomáticos de TypeScript para software complexo — types vs interfaces, generics, discriminated unions, utility types, patterns de domínio.
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
# TypeScript Patterns — Software Complexo
## Types vs Interfaces
```typescript
// Interface: para objetos públicos e extensíveis (podem ser merged via declaration merging)
interface User {
id: string
email: string
name: string
}
// Type: para unions, intersections, mapped types, e aliases
type UserRole = 'admin' | 'member' | 'viewer'
type UserWithRole = User & { role: UserRole }
type PartialUser = Partial<User>
```
**Regra geral:** Interface para contratos de API e objetos de domínio. Type para unions, aliases e tipos compostos.
## Discriminated Unions
```typescript
// ✅ Modelar resultados com discriminated union
type Result<T, E = Error> =
| { success: true; data: T }
| { success: false; error: E }
// Uso
function parseUser(raw: unknown): Result<User> {
const parsed = userSchema.safeParse(raw)
if (!parsed.success) return { success: false, error: parsed.error }
return { success: true, data: parsed.data }
}
// Type narrowing automático
const result = parseUser(rawData)
if (result.success) {
console.log(result.data.email) // TypeScript sabe que data existe
} else {
console.log(result.error.message) // TypeScript sabe que error existe
}
```
…Read the whole file at its exact version.
How to install
mdr add joaoguirunas/team-os/dev-typescript-patterns@sha256:5413f6ec69c7180aThe line at the top of this page pins the label v1.1, 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_zeohv3gbvq3ywhpg)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 23, 2026 and Sep 26, 2026, about one every 156 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1 latest | 2026-09-26 | 8a9bf22 | 6,127 B | A | view · diff |
| v1.1 | 2026-04-23 | b70017d | 6,125 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 (6127 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
joaoguirunas/team-os · 5 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zeohv3gbvq3ywhpg GET https://markdownregistry.com/api/v1/resolve?ref=joaoguirunas/team-os/dev-typescript-patterns GET https://markdownregistry.com/api/v1/blob/5413f6ec69c7180a511a0b10a6f92d878368f2cd7707418a57956f2233089a6b
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.