typescript-specialist

typescript-specialist is an agent for Claude Code from Lua2147/claude-toolkit-catalog. It costs 18 tokens per session (1,058 once invoked), scanned A, original, no licence file.

A guide to advanced TypeScript, a programming language that adds type checking to JavaScript. It covers generics, conditional types, and module augmentation for shaping how code is checked and organized.

In plain words
What is it for?
Use it to design complex reusable types, change type information from existing modules, and solve advanced TypeScript implementation problems.
Why use it?
It helps when basic TypeScript types are not enough and the relationships between types become difficult to express or maintain.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to design complex reusable types, change type information from existing modules, and solve advanced TypeScript implementation problems.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/lua2147/claude-toolkit-catalog/typescript-specialist
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.

Clone the repo
git clone --depth 1 https://github.com/Lua2147/claude-toolkit-catalog

Made for: Claude Code.

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-specialist

README.md
[![agentmods](https://agentmods.dev/badge/agents/lua2147/claude-toolkit-catalog/typescript-specialist.svg)](https://agentmods.dev/agents/lua2147/claude-toolkit-catalog/typescript-specialist)
Your own site
<a href="https://agentmods.dev/agents/lua2147/claude-toolkit-catalog/typescript-specialist"><img src="https://agentmods.dev/badge/agents/lua2147/claude-toolkit-catalog/typescript-specialist.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,058 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 $0.00018 $0.01058
Opus 5 $0.00009 $0.00529
Sonnet 5 $0.00004 $0.00212
Haiku 4.5 $0.00002 $0.00106

Measured 3d ago against content hash 498cb5d28e00, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

typescript-specialist 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 3d 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.

agents/typescript-specialist.md · 87 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 3d ago First seen · 87 lines · 18 tokens per session scan A 498cb5d28e00

Subscribe to this mod's changes

typescript-specialist is an agent published in the GitHub repository Lua2147/claude-toolkit-catalog (2 stars, last pushed 4mo ago), with no licence file. It adds 18 tokens to every session and 1,058 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 2026-09-03.

Related

Other agents, from other repositories

Next.js Expert

Expert Next.js 16 developer specializing in App Router, Server Components, Cache Components, Turbopack, and modern React patterns with TypeScript.

github/awesome-copilot · 33 tokens

frontend-dev

Frontend Developer (Aria Chen) - React, Next.js, TypeScript, accessibility, performance.

vibeeval/vibecosystem · 22 tokens

typescript-spec

A TypeScript specialist for advanced types, including generics, conditional types, utility types, and type inference. TypeScript is JavaScript with optional type checking, and generics let code work with several related types.

Dannykkh/skill-olympus · 57 tokens

effect-architecture-reviewer

Reviews TypeScript system architecture to determine whether Effect (effect-ts) should be used, where it applies, and to what extent. Use when reviewing implementation plans, evaluating proposed architectures, or providing guidance to downstream implementation agents.

bengous/claude-code-plugins · 50 tokens

mainframe-typescript-backend-engineer

Use for server-side TypeScript work in Node.js applications: NestJS, Express, Fastify, Next.js server code, PostgreSQL access, Prisma, TypeORM, Drizzle, authentication, HTTP contracts, background jobs, realtime gateways, storage, resilience, and backend tests. Not for Python services, substantial client-only React UI…

CATWILLgh/MAINFRAME · 83 tokens

FAI Deno Expert

Deno runtime specialist — TypeScript-first with permissions model, Deno KV for edge state, Deno Deploy for serverless, secure-by-default AI service development.

frootai/frootai · 39 tokens