typescript-guru

typescript-guru is a skill for Claude Code, Codex from skillsdirectory/awesome-ai-skills. It costs 42 tokens per session (721 once invoked), scanned A, original, no licence file.

A TypeScript development skill for advanced type features such as generics, reusable type helpers, inferred types, conditional types, and strict type checking.

In plain words
What is it for?
Use it to write complex TypeScript types, solve type-level problems, and improve strict typing in TypeScript code.
Why use it?
It helps when TypeScript's type system becomes difficult to understand or needs to enforce detailed rules.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to write complex TypeScript types, solve type-level problems, and improve strict typing in TypeScript code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/skillsdirectory/awesome-ai-skills/typescript-guru
Install

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.

Any agent
npx skills add skillsdirectory/awesome-ai-skills --skill typescript-guru
Clone the repo
git clone --depth 1 https://github.com/skillsdirectory/awesome-ai-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for typescript-guru

README.md
[![agentmods](https://agentmods.dev/badge/skills/skillsdirectory/awesome-ai-skills/typescript-guru/github.svg)](https://agentmods.dev/skills/skillsdirectory/awesome-ai-skills/typescript-guru)
Your own site
<a href="https://agentmods.dev/skills/skillsdirectory/awesome-ai-skills/typescript-guru"><img src="https://agentmods.dev/badge/skills/skillsdirectory/awesome-ai-skills/typescript-guru/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.

agentmods 80×15 button for typescript-guru

Your own site · 80×15
<a href="https://agentmods.dev/skills/skillsdirectory/awesome-ai-skills/typescript-guru"><img src="https://agentmods.dev/badge/skills/skillsdirectory/awesome-ai-skills/typescript-guru.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 721 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00042 $0.00721
Opus 5 $0.00021 $0.00360
Sonnet 5 $0.00008 $0.00144
Haiku 4.5 $0.00004 $0.00072

Measured 11d ago against content hash 65aeb04909e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

typescript-guru 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 11d 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.

skills/typescript-guru/SKILL.md · 94 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

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.

  1. 11d ago First seen · 94 lines · 42 tokens per session scan A 65aeb04909e8

Subscribe to this mod's changes

typescript-guru is a skill published in the GitHub repository skillsdirectory/awesome-ai-skills (3 stars, last pushed 6mo ago), with no licence file. It adds 42 tokens to every session and 721 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.

Related

Other skills, from other repositories

coding-standards

React 19 and TypeScript coding standards for Portfolio Buddy 2. Use when: writing new components, reviewing code, refactoring, or ensuring consistency. Contains component patterns, TypeScript rules, and best practices.

aiskillstore/marketplace · 48 tokens

portfolio-context

Auto-loaded context for Portfolio Buddy 2 development. Use for ANY task involving: React 19 development, TypeScript, portfolio analysis features, metrics calculations, trading strategy comparison, or working with the Portfolio Buddy 2 codebase. Contains tech stack, known issues, and architectural constraints.

aiskillstore/marketplace · 60 tokens

typescript-best-practices

Use when reading or writing TypeScript or JavaScript files (.ts, .tsx, .js, tsconfig.json).

aiskillstore/marketplace · 30 tokens

neo-typescript

Use this skill when writing, reviewing, debugging, or architecting TypeScript code. Trigger for tsconfig/compiler options, strict mode, generics, conditional/mapped/template literal types, structural typing, ESM/CJS interop, decorators, library typing, or TypeScript runtime boundary issues.

Benknightdark/neo-skills · 63 tokens

scraperapi-nodejs-sdk

Best-practices reference for the ScraperAPI Node.js / JavaScript SDK (scraperapi-sdk npm package). Consult whenever the user is writing, debugging, or reviewing JavaScript or TypeScript code that calls ScraperAPI. Use when user asks: "scrape a website with Node.js and ScraperAPI", "ScraperAPI JavaScript example", "how…

scraperapi/scraperapi-skills · 187 tokens

typescript

Apply when writing TypeScript code. Strict types, discriminated unions, async patterns, and runtime safety.

sordi-ai/skill-everything · 23 tokens