Borrowing it
Nothing to install: this file belongs to joaovjo/linkedin-mcp-server-ts. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/joaovjo/linkedin-mcp-server-ts/main/.agents/skills/typescript-best-practices/SKILL.mdgit clone --depth 1 https://github.com/joaovjo/linkedin-mcp-server-tsWrote 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/joaovjo/linkedin-mcp-server-ts/typescript-best-practices)<a href="https://agentmods.dev/skills/joaovjo/linkedin-mcp-server-ts/typescript-best-practices"><img src="https://agentmods.dev/badge/skills/joaovjo/linkedin-mcp-server-ts/typescript-best-practices/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/joaovjo/linkedin-mcp-server-ts/typescript-best-practices"><img src="https://agentmods.dev/badge/skills/joaovjo/linkedin-mcp-server-ts/typescript-best-practices.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00030 | $0.01404 |
| Opus 5 | $0.00015 | $0.00702 |
| Sonnet 5 | $0.00006 | $0.00281 |
| Haiku 4.5 | $0.00003 | $0.00140 |
Grade A, and why
typescript-best-practices 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TypeScript Best Practices & Style Guide
Segue as diretrizes normativas consolidadas em .agents/rules/typescript-style.md, combinando o Google TypeScript Style Guide, ts.dev e os padrões modernos do ecossistema Bun/Biome/Zod/MCP.
1. Modelagem de Tipos: interface vs. type
- Use
interfacepara formatos de objetos estruturados, contratos de classes, configurações (AppConfig) e opções de APIs/serviços:export interface ScraperOptions { timeoutMs: number; headless: boolean; userAgent?: string; } - Use
typepara Uniões Discriminadas, Branded Types, Tipos Utilitários/Mapeados e inferências Zod:export type ConnectionState = | { status: "connectable"; actionText: string } | { status: "already_connected" } | { status: "pending" } | { status: "unavailable" };
2. Torne Estados Ilegais Irrepresentáveis (Make Illegal States Unrepresentable)
Use o sistema de tipos para prevenir estados inválidos em tempo de compilação.
Uniões discriminadas para estados mutuamente exclusivos:
// Bom: apenas combinações válidas são possíveis
type RequestState<T> =
| { status: "idle" }
| { status: "loading" }
| { status: "success"; data: T }
| { status: "error"; error: Error };
// Ruim: permite combinações inválidas como { loading: true, error: Error }
type RequestState<T> = {
loading: boolean;
data?: T;
error?: Error;
};
Branded types para primitivos de domínio:
type UserId = string & { readonly __brand: "UserId" };
type OrderId = string & { readonly __brand: "OrderId" };
// O compilador impede passar OrderId onde UserId é esperado
function getUser(id: UserId): Promise<User> { /* ... */ }
Const assertions para uniões literais (Banido enum tradicional):
const ROLES = ["admin", "user", "guest"] as const;
type Role = typeof ROLES[number]; // "admin" | "user" | "guest"
function isValidRole(role: string): role is Role {
return ROLES.includes(role as Role);
}
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.
- 9d ago First seen · 175 lines · 30 tokens per session scan A d051c930bfe9
typescript-best-practices is a skill published in the GitHub repository joaovjo/linkedin-mcp-server-ts (4 stars, last pushed 21d ago), licensed MIT. It adds 30 tokens to every session and 1,404 once invoked, about $0.0002 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.
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