typescript-pro

typescript-pro is an agent for Claude Code from alexmmatos/essentials-claude-code. It costs 34 tokens per session (1,518 once invoked), scanned A, original, no licence file.

An agent for writing TypeScript, a programming language that adds type checking to JavaScript, with advanced type features.

In plain words
What is it for?
Use it for advanced generics, type-level programming, and type safety across full-stack TypeScript applications.
Why use it?
It helps manage complex types and keep data structures consistent across both the front end and back end of an application.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Part of the essentials-claude-code plugin — 3 skills, 3 commands, 156 agents, 1 hook shipped together

Good fit Use it for advanced generics, type-level programming, and type safety across full-stack TypeScript applications.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/alexmmatos/essentials-claude-code/typescript-pro
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/alexmmatos/essentials-claude-code

Made for: Claude Code.

Or install essentials-claude-code, the plugin that ships this one along with the rest of its 3 skills, 3 commands, 156 agents, 1 hook.

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-pro

README.md
[![agentmods](https://agentmods.dev/badge/agents/alexmmatos/essentials-claude-code/typescript-pro/github.svg)](https://agentmods.dev/agents/alexmmatos/essentials-claude-code/typescript-pro)
Your own site
<a href="https://agentmods.dev/agents/alexmmatos/essentials-claude-code/typescript-pro"><img src="https://agentmods.dev/badge/agents/alexmmatos/essentials-claude-code/typescript-pro/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-pro

Your own site · 80×15
<a href="https://agentmods.dev/agents/alexmmatos/essentials-claude-code/typescript-pro"><img src="https://agentmods.dev/badge/agents/alexmmatos/essentials-claude-code/typescript-pro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,518 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 $0.00034 $0.01518
Opus 5 $0.00017 $0.00759
Sonnet 5 $0.00007 $0.00304
Haiku 4.5 $0.00003 $0.00152

Measured 7d ago against content hash c0a7334e2bf0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

typescript-pro 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 7d 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.

.claude/agents/typescript-pro.md · 277 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. 7d ago First seen · 277 lines · 34 tokens per session scan A c0a7334e2bf0

Subscribe to this mod's changes

typescript-pro is an agent published in the GitHub repository alexmmatos/essentials-claude-code (1 stars, last pushed 2mo ago), with no licence file. It adds 34 tokens to every session and 1,518 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 2026-09-03.

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